Frame image digitisation apparatus

FIELD: physics.

SUBSTANCE: disclosed is a frame image digitisation apparatus. The disclosed apparatus comprises a lens in the focal plane of which there is an image sensor having an array of elements, a control signal generator and three register units, the outputs of which are the outputs of the digitisation apparatus. Each array element consists of a converter for converting radiation of colours R, G, B into three codes. Images are input into the sensor, the number of said images being equal to the number of array elements and the number of colours R, G, B of analogue-to-digital converters (ADC).

EFFECT: high image frame resolution owing to conversion of three colours R, G, B into codes using one converter.

4 dwg, 2 tbl

 

The invention relates to the technology of digitization of the image frame, may be used to obtain digital images in digital camcorders and cameras.

The prototype is a device to capture the image frame [1], matrix containing the image receiver with a resolution of 106located in the focal plane of the lens, three groups of outputs which are connected to the inputs of three blocks of keys, the outputs of which are connected to the inputs of three blocks of registers, and the generator control signals issuing from the first output pulses 25 Hz frames from the second output pulses of the sampling rate of 25 MHz codes, with the third output pulse frequency frame period frame duration 40 MS at the control inputs of the keys in blocks of registers, the outputs of which are the outputs of the device digitization.

The disadvantage of the prototype is the implementation of the matrix element of the triad of the three converters brightness radiation code", each of which converts radiation of the same color of three primary colors R, G, in the code. When the three converters in each matrix element the matrix element has a large transverse dimensions, which reduces the resolution of the matrix of the image receptor.

The purpose of the invention is obtaining codes of the three colors R, g In one Converter that will allow you to reduce paper sizes as the instrument of the matrix element.

The technical result is the execution of the matrix element of one Converter, which allows to increase the resolution of the frame.

The essence of the claimed device, comprising a lens, the matrix elements in the image receptor, three registers unit and a generator of control signals, each of the matrix element of the one inverter "emission colors of R, G, B - three code" and the introduction to the image receiver according to the number of elements in the matrix and the number of colors R, G, analog-to-digital Converter /ADC/.

Device to capture the image frame shown in Fig.1, the registers unit - Fig.2, the matrix element - Fig.3, the separation of the colors R, G, in the matrix element - Fig.4, the device ADC of Fig.3, converting the code from one signal to the high-order digit in the code in the eight-bit code of a sequence of the following units - Fig,2.

The device digitization /Fig.1/ includes the lens 1. in the focal plane of which is a receiver 2 of the image generator 3 control signals and three blocks 4, 5, 6 registers, the outputs of which are the outputs of the device digitization, Each matrix element /Fig.3/ made inverter emission colors of R, G, B three code", which includes an opaque housing 7, in front of which is an opaque filter 8, is attached to the free is the once of the piezoelectric element 9, the other end of which is rigidly fixed in the housing 7 and through the diode connected to the first output /25 Hz/ generator 3 control signals, for opaque filter 8 in an opaque partition fixed lens 10. In the second part of the case after the lens 10 and is rigidly fixed pyramidal mirror tetrahedron 11 [2 S. 234 and 3 S. 174], the axis of symmetry of which coincides with the optical axis of the lens 10 and the top of the pyramid is directed toward the lens 10. Left, right and bottom planes of the tetrahedron 11 is made with a mirror coating. On the left, the right side of the housing 7 and on the bottom /of Fig.3, 4/ in places exactly reflected from the mirror planes of the tetrahedron 11 radiation located and secured photodetectors 12, 13 /Fig.3/ and 14 /Fig.4/. Each photodetector on the receiving side has a colour filter: sensor 12 with a red filter R, the photodetector 13 has a green color filter G, the photodetector 14 has a blue color filter, the color filters of the same multiplicity. The output of each photodetector 12, 13, 14 connected to the input of your pulse amplifier 151-3with equal gain, and their inputs are the input of your ADC /Fig.3/. ADC made identical, each including serially connected pulse amplifier 15, the output of which is connected to the input of the pulse of the led 16 white radiation in the e exposure which is a group of 17 of the eight identical photodetectors, the output of each of which is connected to the input of its discharge in the eight-bit register 181-3first-eighth outputs eight bits are the outputs of the ADC and generates binary code colors, respectively R, G, B. To obtain the binary code of the receiving part of the photodetector in groups 171-3have a neutral light filters corresponding density ratio on the photodetector corresponds to a weight category that is connected to the output of the photodetector, and are shown in table 1.

Table 1.
no discharge in the register 181 senior2345678
The multiplicity filter128x64x32x16x8x4x3x0x

The outputs of each register 18 is connected to the inputs of your encoder 19 and through the diodes of the volume of ineni and connected to the second Manager U Cinput your key 20 and to the control Uothe input register 18 in each ADC for zero discharge. To obtain the codes R, G, 25 Hz pulse from the third output block 3 /of Fig.1/ opens synchronously in all ADC keys 20 /Fig.3/. Output 1 pulse generator 3 25 Hz affects all of the piezoelectric elements 9 for opening the opaque filters 8 passage of radiation from the subject to the lens 10, the radiation from which is fed to three mirrored tetrahedron 11 /Fig.3, 4/, from which it is reflected on their photodetectors 12, 13, 14 /Fig.4/. The photodetector 12 on the receiving side has the red R color filter, a photodetector 13 on the receiving side has a green G color filter, a photodetector 14 at the receiving side has a blue light filter. Fig.4. With photodetectors 12, 13, 14, signals are sent to the inputs of their pulse amplifiers 151, 152, 153accordingly, the first. the second and third ADCS, amplifiers 151-3have equal gain. The LEDs 161-3accordingly, depending on the brightness of the radiation from the direct current from the pulse amplifier [3 seconds. 8] irradiate his group of eight identical photodetectors 17, connected to the inputs of the first - eighth digits of your register 181-3the outputs of the bits in each register 18 via the diodes are combined, and the combined output is connected to the control UCthe input key 20 is in parallel to the control input U aboutregister 18 to reset the bits of the register 18. The public key 20 transmits a pulse frequency of 200 Hz with a fourth output of the generator 3 /Fig.1/ the first pulse from the output of the key 20 is supplied successively to the discharge from the first to the eighth register 18 and generates a pulse older code signal from the register 18 in the encoder 19, and the pulse through the diode is supplied to the second control input UCkey 20 and closes it, the same impulse is a signal Uoand clears all bits of the register 18. The encoder 19 received it signal the senior level code register 18 encodes the four-digit code and outputs it in parallel form in block 4 /5, 6/ registers. Code with encoder 191-3represents the number of discharge /first-eighth/, which was the impetus senior level code in the register 18. Codes with encoders 19 are received in blocks 4, 5, 6 registers in parallel and synchronously in the number of 4×3×106/the number of digits in the code. the number of colors R, G, B, resolution fps. The process of converting codes is shown in table 2, the duration of the frame 40 MS.

Table 2.
Codes in registers 18Codes issued from the registers 18Codes with encoders 19 in blocks of registers 4, 5, 6
00000001000000010001 /1/
00000011000000100010 /2/
00000111000001000011 /3/
00001111000010000100 /4/
00011111000100000101 /5/
00111111001000000110 /6/
01111111010000000111 /7/
11111111100000001000 /8/

When issuing codes of the frame in the device mode key 21 /Fig.2/ opened by a signal Ufromoutput 3 generator 3 control signals /Fig.1/. The key 21 flows into the dispenser 22 pulses the pulses 25 MHz sample rate output 2 generator 3. Outputs of the four-digit register 231-106codes are consecutively supplied to the input of eight-bit decoder 24, in which each four-digit code combination at the input, excites only the one way out [5 c.202|, which pulse is supplied to a corresponding one output eight-bit output of the register 25 and in parallel through diodes this same pulse is fed to the inputs of the least significant bits of the output register 25, the outputs of blocks 4, 5, 6 followed by the eight-digit codes received in registers 18 ADC in the receiver 2 images.

The operation of the device the digitization of the frame.

Lens 1 projects the image frame to the inputs of inverters emission colors of R, G, B - three code, is radiation photodetectors 12, 13, 14, with which the signals arrive at the inputs of the pulse amplifiers 151-3ADC pulse LEDs white light 161-3each ADC is irradiated group 17 photodetectors in each register 18 of each ADC is formed by the eight-bit code /column 1 in table 2 from which the encoder 19 Fig.3 receives only the signal big-endian code and encoder 19 in a block 4 /5, 6/ registers should the four-digit code senior level, from which the signal was received. In blocks 4, 5, 6, each supplied in parallel 4×106the code, which are the codes of a digitized image frame. When playing a video the four-digit code issued consecutively in each block of registers 4, 5, 6 in parallel to the decoder 24, the output of which is given in the output register 25 one pulse, predstavljajushej signal big-endian code and the output of the output register 25 in the device mode is followed by a full eight-digit code. formed in register 18 /Fig.3/ each ADC of the receiver 2 images.

The proposed device is the technology of digitization of the image frame in the digital video cameras and digital cameras. Converting the intensity of irradiation of the matrix elements is parallel and simultaneously by all elements of the matrix at the same time, the digitization of the frame ends with the termination of the period of the frame. Perform obtain the codes of three colors R, G, In one transformer instead of three /separately for each color/ will allow you to increase the resolution of the frame and reduce the size of the image receiver device digitization.

Sources used

1. RF patent №2452026 C1, CL G06 9/00, bull. 15 from 27.05.12,

2. B. N. Runners, N. P. Akanov. Theory of optical systems. M, 1973, S. 234.

3. I. I. Bronstein, K. A. Semendjajew. Handbook of mathematics, Ed 10-E. M., 1964. S. 174.

4. Semiconductor optoelectronic devices. The Handbook. M, 1984, V. I. Ivanov, A. I. Aksenov. A. M. Shin, S. 8: the second paragraph from the bottom.

5. C. N. Totemic. Telemechanics. 2nd ed. M, 1985, S. 202.

Device to capture the image frame containing the lens, the focal plane which is receiving the receiver side image, the first, second, and Tr is the tie blocks of registers and generator control signals, issuing from the first output pulse frame rate /25 Hz/, from the second output pulses of the sampling frequency /25 MHz/ codes, with the third output pulse frequency frame period of the frame duration, the first control inputs of the first and third blocks of keys combined and connected to the third generator output control signals, the second control inputs of the blocks of keys combined and connected to the second generator output control signals, blocks of registers are made identical, and each includes registers by the number of permissions /106/ matrix in the image receiver and connected in series key and the pulse distributor whose outputs from the first to the 106sequentially connected to the control inputs Uvydeach register, the information inputs of each block registers are the parallel inputs of all bits of all registers, the same outputs bits of the registers in each block registers are combined, the first Manager of the entrance to each block of registers is a first control Ufromthe input key is connected to the third generator output control signals, the second managing input signal is input key, is connected to the second generator output control signals, wherein the generator control signal has a fourth output /200 Hz, the image receiver has first, second and third control inputs connected respectively to the first, fourth and third control outputs of the generator control signals, each matrix element in the receiver image Converter is the emission colors of R, G, B - three code, for each Converter in the receiver image entered by three identical analog-to-digital Converter /ADC/, only the ADC according to the number of three colors R, G, and the number of converters at a resolution of 106is 3×106and put the number of analog encoders, and the first to fourth outputs of the encoders are the outputs of the image receptor 4×3×106converters "emission colors of R, G, B - three code made identical, each comprising an opaque body shape of a rectangular parallelepiped, in front of which is placed an opaque filter attached to the free end of the piezoelectric element, the second end of which is rigidly mounted in the transmitter housing and through the diode connected to the first control input of the image receptor, for opaque filter in an opaque partition fixed lens, the second part of the transmitter on the optical axis of the lens and is rigidly fixed pyramidal mirror with three sides of the tetrahedron, the axis of symmetry is vtorogo coincides with the optical axis of the lens, left, right and bottom planes of the tetrahedron is made with a mirror coating front of them on the sides of the body precisely in the places of arrival of reflected from the mirror sides of the tetrahedron radiation located and secured first, second and third photodetectors, the diameter of each of which is equal to the area of reflected radiation at the receiving side, each sensor has a color filter, which one ratio, the first photodetector has a red color filter, the second has a green color filter, and the third has a blue color filter, each transducer, respectively, three photodetectors is served by three identical executed ADC, the output of each photodetector is connected to the input of the pulse amplifier of your ADC, each ADC includes serially connected pulse amplifier and pulse the led, scanning probe located at an appropriate distance in the same plane eight identical photodetectors includes eight-bit register, eight diodes and key, the output of each photodetector is connected to the input of its discharge in the eight-bit register, for receiving the binary code in the register irradiated photodetectors at the receiving side are each neutral density filter corresponding multiplicity: the photodetector, the output of which is connected to the input of the first /older/ discharge register, has come athelny filter multiplicity 128 Xthe photodetector connected to the input of the second digit of the register, has a neutral density filter 64Xthe photodetectors connected to the bits of the third - eighth in the register, have a neutral filter in the sequence of the 32X, 16X, 8X, 4X, 2Xand 0X; the input of each diode is connected to the output of its discharge, and their outputs combined and the combined output is connected to the second Manager UCthe input of the key ADC and the input Uozero discharge register, the first control Ufromthe inputs of all the keys in the ADCS are combined and connected to the third control input of the image receiver, the signal inputs of the keys of all the ADC is connected to the second control input of the image receiver, the outputs of each ADC are the parallel outputs of the first - eighth bits of the register ADC in the receiver of the image introduced by the number of analog encoders, the first - eighth inputs of each of them is connected to the first - eighth outputs of the first - eighth bits of the register ADC, the signal coming from one of the bits of the register ADC, the encoder encodes the four-digit binary code to reduce the number of connections of the image receptor with a block of registers twice, the outputs of the encoders are outputs 4×106the image receptor, the outputs of 4×106with the image receptor, imagine what their codes of signals of red, connected to 4×106the inputs of the first register unit, outputs 4×106from the receiver image representing signal codes green, connected to 4×106the inputs of the second register unit, outputs 4×109from the receiver image representing signal codes blue, connected to 4×106the inputs of the third block of registers in each block of registers connected in series introduced the eight-bit decoder and the eight-bit output register, the first to fourth inputs of the eight-bit decoder connected to the joint of the same name, the first to fourth outputs of registers in the register unit, the output of each digit entered decoder connected to the input of the same bit in the output register, and connected in series through seven diodes the output of each of the discharge of the decoder are connected in parallel to the inputs of all subsequent least significant bits in the output register, the first eight outputs of which are the outputs of the first, second and third blocks of registers.



 

Same patents:

FIELD: physics.

SUBSTANCE: apparatus comprises a lens, an image detector having an array situated in the focal plane of the lens, the array having elements which are converters for converting radiation to codes based on the frame resolution number 106, each having an opaque housing in the front part of which, in a partition wall, there is a microlens, on the optical axis of which and at an angle of 45° thereto semitransparent micromirrors are arranged in series and rigidly mounted based on the number of bits per code, each preceding micromirror transmitting to the next micromirror radiation flux with half the strength.

EFFECT: high speed of frame digitisation.

1 tbl, 4 dwg

FIELD: physics.

SUBSTANCE: apparatus comprises a lens, an image detector which includes an array of elements based on the frame resolution number 106, situated in the focal plane of the lens and having three groups of outputs of colour codes R, G, B, includes three register units and a control signal generator which outputs from the first output pulses with frame frequency (25 Hz), connected to the control inputs in array elements, and from the second output pulses with code sampling frequency, connected in parallel to the second control inputs of the first through third register units.

EFFECT: high frame resolution by making array element converters of brightness of radiation of colours R, G, B - three codes, which synchronously output codes of three colours R, G, B.

5 dwg, 1 tbl

FIELD: physics.

SUBSTANCE: disclosed is a method of obtaining a structural image of a biological object in optical coherence tomography. The method includes breaking down a source colour vide frame into non-overlapping spatial blocks consisting of more than one pixel. A structural image is obtained via small-angle raster scanning in the arm of an optical coherence tomography sample. The obtained image with a size of Piskh bytes is broken down into non-overlapping spatial blocks only on columns; adjacent column blocks are averaged pixel by pixel to form a new image with a size of Pstl bytes; the new image is broken down into non-overlapping spatial blocks only on rows; adjacent row blocks are averaged pixel by pixel to form a resultant image with a size of Pres bytes, and the averaging process is controlled based on an exponential relationship Pstl from the number of averaging column blocks Ustl and Pres from the number of averaging row blocks - Ustr.

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7 dwg

FIELD: physics, video.

SUBSTANCE: invention relates to video encoding and decoding, which provides conversion between a spatial region and a conversion region. The method of encoding video includes breaking down a video image into encoding units having a maximum size. The images are encoded based encoding units according to depths obtained by hierarchically breaking down each maximum depth encoding unit, and based on the type of partition defined according to depths of the depth encoding units. The type of partition includes a data unit having the same size as the current encoding unit, and a partial data unit obtained by breaking down the height or width of the current encoding unit. Encoding units are determined according to encoding depths relative to each of the depth encoding units, and encoding units having a tree structure are therefore determined. The encoded data are output.

EFFECT: high efficiency of image compression and, as a result, high efficiency of encoding and decoding video.

15 cl, 15 dwg, 1 tbl

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SUBSTANCE: invention relates to encoding three-dimensional video signals, and specifically to a transport format used to transport three-dimensional content. The technical result is achieved using a device which is characterised by that it includes a means of generating a stream which is structured into multiple levels: level 0, having two independent layers: a base layer containing video data of a right-side image, and a level 0 extension layer containing video data of a left-side image, or vice versa; level 1, having two independent extension layers: a level 1 first extension layer containing a depth map relating to the image of the base layer, a level 1 second extension layer containing a depth map relating to the image of the level 0 extension layer; level 2, having a level 2 extension layer containing overlapping data relating to the image of the base layer.

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EFFECT: high accuracy of predicting the motion vector of an image section.

15 cl, 6 dwg

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to predictive motion vector predictive encoding/decoding of moving pictures. The moving picture encoding apparatus includes a primary candidate reference motion vector determination unit which sets N primary candidate reference motion vectors, a degree of reliability calculation unit which calculates the reliability of each primary candidate reference motion vector which quantitatively represents effectiveness in motion vector prediction of the block to be decoded, using encoded or decoded picture information, a reference motion vector determination unit selects M (M<N) secondary candidate reference motion vectors in accordance with the degree of reliability of N primary candidate reference motion vectors, a motion vector encoding unit calculates a predictive motion vector of the block to be encoded using M secondary candidate reference motion vectors with high reliability.

EFFECT: improved efficiency of predicting and encoding moving pictures.

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FIELD: information technology.

SUBSTANCE: method for alphabetical representation of images includes a step for primary conversion of an input image to a multi-centre scanning (MCS) format, constructed according to rules of a plane-filling curve (PFC). The initial MSC cell is a discrete square consisting of nine cells (3×3=9), having its own centre and its own four faces (sides). Scanning of the initial MSC cell is performed from the centre to the edge of the square while bypassing the other cells on a circle. The path with a bypass direction to the left from the centre of the square and then on a circle, clockwise, is the priority path for scanning and displaying images.

EFFECT: high efficiency of encoding images.

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FIELD: radio engineering, communication.

SUBSTANCE: invention relates to video monitoring means. The method involves a mobile client sending a request, at the request of an external control device, to a multimedia transcoder; the multimedia transcoder receiving said request; requesting an encoded multimedia stream of said external control device from a fixed streaming media network server; transcoding the obtained encoded multimedia stream; the multimedia transcoder outputting a transcoded encoded multimedia stream to the mobile client or mobile streaming media network server, where the multimedia transcoder sets video transcoding parameters corresponding to various mobile network standards.

EFFECT: enabling a user to perform video monitoring of a control point using a mobile terminal.

10 cl, 4 dwg

FIELD: physics, computation hardware.

SUBSTANCE: invention relates to coding/decoding of picture signals. Method for variation of reference block (RFBL) with reference pixels in reference picture (I_REF) converts (TRF) reference block to first set of factors (REF (u, v,)). It changes the first set of factors (REF (u, v,)) with the help of one or several weights (TR (u, v,)) and executes the inversion (ITR) of changed. Note here that weights (TR (u, v,)) are defined by extra pixels in current picture (I_CUR) and extra reference pixels in reference picture. Application of extra pixels and extra reference pixels allows the determination of spectral weights so that they display the effects of attenuation. Particularly, if reference frame consists of two black-out frames one of which should be forecast with the help of reference frame, then assignment of weights in spectral band allows isolation of significant frame from two frames.

EFFECT: efficient coding in the case of attenuation.

10 cl, 3 dwg

FIELD: systems for encoding and decoding video signals.

SUBSTANCE: method and system for statistical encoding are claimed, where parameters which represent the encoded signal are transformed to indexes of code words, so that decoder may restore the encoded signal from aforementioned indexes of code words. When the parameter space is limited in such a way that encoding becomes inefficient and code words are not positioned in ordered or continuous fashion in accordance with parameters, sorting is used to sort parameters into various groups with the goal of transformation of parameters from various groups into indexes of code words in different manner, so that assignment of code word indexes which correspond to parameters is performed in continuous and ordered fashion. Sorting may be based on absolute values of parameters relatively to selected value. In process of decoding, indexes of code words are also sorted into various groups on basis of code word index values relatively to selected value.

EFFECT: increased efficiency of compression, when encoding parameters are within limited range to ensure ordered transformation of code word indexes.

6 cl, 3 dwg

FIELD: method for encoding and decoding digital data transferred by prioritized pixel transmission method or stored in memory.

SUBSTANCE: in accordance to the invention, informational content being encoded and decoded consists of separate pixel groups, where each pixel group contains value of position, at least one pixel value and priority value assigned to it, where at least one key is used, with which value of position and/or pixel value/values of pixels of pixel group are selectively encoded or decoded. Depending on used keys and on parts of informational content which are encoded, for example, value of positions and/or values of pixel groups, many various requirements may be taken into consideration during encoding.

EFFECT: ensured scaling capacity of encoding and decoding of digital data.

8 cl, 5 dwg, 3 tbl

FIELD: image processing systems, in particular, methods and systems for encoding and decoding images.

SUBSTANCE: in accordance to the invention, input image is divided onto several image blocks (600), containing several image elements (610), further image blocks (600) are encoded to form encoded representations (700) of blocks, which contains color code word (710), intensity code word (720) and intensity representations series (730). Color code word (710) is a representation of colors of elements (610) of image block (600). Intensity code word (720) is a representation of a set of several intensity modifiers for modification of intensity of elements (610) in image block (600), and series (730) of representations includes representation of intensity for each element (610) in image block (600), where the series identifies one of intensity modifiers in a set of intensity modifiers. In process of decoding, code words (710, 720) of colors and intensity and intensity representation (730) are used to generate decoded representation of elements (610) in image block (600).

EFFECT: increased efficiency of processing, encoding/decoding of images for adaptation in mobile devices with low volume and productivity of memory.

9 cl, 21 dwg, 3 tbl

FIELD: technology for processing digital images, namely, encoding and decoding of images.

SUBSTANCE: in the system and the method, serial conversion and encoding of digital images are performed by means of application of transformation with superposition (combination) of several resolutions, ensuring serial visualization and reduction of distortions of image block integrity and image contour when compared to many standard data compression systems. The system contains a converter of color space, block for transformation with superposition of several resolutions, quantizer, scanner and statistical encoder. Transformation by scanning with usage of several resolutions outputs transformation coefficients, for example, first transformation coefficients and second transformation coefficients. Representation with usage of several resolutions may be produced using second transformation coefficients with superposition of several resolutions. The transformer of color space transforms the input image to representation of color space of the input image. Then, the representation of color space of input image is used for transformation with superposition of several resolutions. The quantizer receives first transformation coefficients and/or second transformation coefficients and outputs quantized coefficients for use by scanner and/or statistical encoder. The scanner scans quantized coefficients for creating a one-dimensional vector, which is used by statistical encoder. The statistical encoder encodes quantized coefficients received from quantizer and/or scanner, which results in compression of data.

EFFECT: increased traffic capacity and increased precision of image reconstruction.

27 cl, 19 dwg

FIELD: digital processing of images, possible use for transmitting images through low speed communication channels.

SUBSTANCE: in accordance to the invention, the image is divided onto rank blocks, for each rank block of original image a domain or a block is found in the code book and a corresponding transformation, which best covers the given rank block, if no sufficiently precise match is found, then rank blocks are divided onto blocks of smaller size, continuing the process, until acceptable match is achieved, or the size of rank blocks reaches certain predetermined limit, while after the division of the image onto rank blocks, classification of the blocks is performed, in accordance to which each domain is related to one of three classes, also except classification of domain blocks of original image, code book blocks classification is also performed, and further domain-rank matching is only performed for those domains, which belong to similarity class of given rank area. As a result, during the encoding, the search for area, which is similar to a rank block, is performed not only among the domains which are blocks of the image being encoded, but also among the code book blocks which match the rank area class.

EFFECT: increased speed of encoding with preserved speed of transmission and frame format length.

3 dwg

FIELD: video data encoding, in particular, masking of distortions introduced by errors.

SUBSTANCE: method and device are claimed which are meant for masking errors in video sequences. When a transition between scenes exists in a video sequence and an error is present in the image which is subject to transition between scenes, error masking procedure is used, which is based on type of transition between scenes, to conceal the error. Information about transition between scenes together with information about the type of transition between scenes is transferred to video decoder in the message of additional extension information, if the transition between the scenes represents a gradual transition between the scenes, algorithm of spatial-temporal masking of errors is used for masking the image, if the transition between the scenes represents a scene cut, and only a part of the image is lost or damaged, then spatial error masking is used to mask the lost or damaged part of the image, and if the whole image belonging to scene cut is lost or damaged, and the image begins a new scene, it is not masked.

EFFECT: creation of method, by means of which the appropriate form of error masking may be selected for frames which are subject to transitions between scenes in a video series.

3 cl, 3 dwg, 11 tbl

FIELD: electrical engineering.

SUBSTANCE: invention relates to communication, in particular, to reducing the message redundancy. The developed method allows transmitting additional data without increasing the volume of transmitted data with the transmission rate left intact. First, the initial image is separated into not overlapping range units to be classified. Here, note that every range unit is refereed to one of the three classes, and the said classification is applied to the domains and units from the code book as well. Additional data is entered into lower category of the domain or units indices, to the rest categories of indices of the domain of the initial image or units from the code book applied is the trial inversion procedure. Now, the domain indices and units from the code book are optimised to be transmitted, along with the data on indices of their orientation, over the communication channel. The receiving party isolates the additional data and restores the initial image.

EFFECT: transmission of additional data without increasing the common volume of transmitted data at the required transmission rate.

4 dwg, 1 tbl

FIELD: information technology.

SUBSTANCE: invention refers to method and electronic device for determination of applicability of the encoded file in an application, which allows for using such type of files but has some restrictions related to properties of such file type, as well as to the computer-readable medium containing the computer programme for performing the said method. To fulfill the above method, the electronic device contains at least one block for correlating the files associated with the application, which accepts (50) at least one property of the encoded file and correlates (52) the property with the application, creates (54) an indicator showing whether the file can be used by the application relying on correlation, and connects (56) the indicator with the encrypted file for further provision of quick decision making regarding usage of the file by the application.

EFFECT: provision of quick choosing encoded files for usage by the application without preliminary decoding of the file.

16 cl, 7 dwg

FIELD: information technology.

SUBSTANCE: method contains steps of processing information on the basis of mathematical transformations, divisions of the image into blocks of the image and coding of the current block, and the division of the image is carried out repeatedly on square blocks whose sizes are defined by a mass of initial data. For blocks which are not analysed before, an un-oriented graph is built, whose each top corresponds to one of such blocks, and each block consistently subject to affine transformations. Each transformed block is compared to all other blocks and if the degree of distortions of such a block at replacement of one of other blocks satisfies with it to the set restrictions on quality of the image between corresponding tops the column create an edge for reception the column, minimal covering which the set of tops answers an optimum base subset of blocks. The information is compared with that stored in memory of the block therefore leaving the information on the storage of the image corresponding to the minimal volume of data necessary for restoration of the image, then the procedure is repeated for the next size of the square block.

EFFECT: increase in the factor of compression of the image with minimal loss of quality at its restoration.

2 cl, 1 dwg

FIELD: physics, image processing.

SUBSTANCE: invention is related to method of reduction of redundancy of transmitted information. Invention actually consists in creation of method for additional information transmission at fractal coding of images. Transmission of additional information is carried out in the following manner: whenever initial image is compressed with the help of fractal compression method, in indices of domain units orientation binary sequence of three digits is recorded, which represents additional information, then based on this additional information processed domain is turned and brightness coefficients - o and contrast coefficients - s are searched for by method of least squares, which correspond to optimal values, at which the following expression is minimised: where {dij} and {rij} accordingly are values of pixels in domain and range areas, as a result of which optimal domain is found with account of inbuilt additional information for coding of range unit, after that indices of domains, coefficients of brightness and contrast, additional information are sent through communication channel. On receiving side additional information is separated and initial image is restored.

EFFECT: creation of method for additional information transmission with fractal coding of images.

4 dwg

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