Frame image digitisation apparatus

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to means of digitising a frame image.

EFFECT: frame digitisation with not three converters in each matrix element but with one converter in each matrix element which, during the frame period, concurrently and synchronously performs three successive conversions of colours R, G, B with 15 bits each, and image digitisation ends at the end of the frame period.

4 dwg

 

The invention relates to the digitization of the image frame, may be used to obtain digital images of frames. The prototype device is the digitization of the frame containing the lens and the image receiver, comprising a matrix of elements, each of the three converters brightness radiation code", containing the first and third blocks of keys, each key - number-resolution frame, and the first through third blocks of registers, in which the registers to the number of resolution frame. The matrix elements of the 106accordingly, resolution, frame/line 1000 samples × 1000 lines/ includes three groups of outputs according to the number of colors from the first to the 10 × 106that are connected to the inputs 107accordingly, blocks of keys, which outputs 1-107connected to many of the same inputs three blocks of registers, and a generator of control signals. The outputs of blocks of registers are the outputs of the device digitization frame. Each matrix element is represented by the triad of the three converters brightness radiation code", each of which includes an opaque housing, the input end of which a color filter of one color, K. G. C., followed by a microobjective on the optical axis which is at an angle of 45° thereto sequentially placed and fixed on the number of digits in the code ten translucent microthermal, nesootvetstvuyushih side of the case are ten of the respective photodetectors, outstanding electrical impulses on the control Ufromthe key inputs in blocks of keys. Binary codes with converters represent the sequence of units in the code bits corresponding to microseries had undergone radiation and discharges through the micromirrors which light is not passed, there will be zeros. The disadvantages of the prototype are: the composition of each element of the matrix three inverter brightness radiation code, which reduces the resolution of the frame is not less than twice, and the lack of color depth transmitted codes by ten bits.

The purpose of the invention: improved resolution of the image receptor and the increase in color depth up to 45 bits: 15 bits in the code of each color R, G, B.

Technical results are: performing the digitization frame is not three converters in each element of the matrix, and one inverter brightness radiation code that executes for a period of three consecutive frame color conversion of R, G, and 15 bits each, the color depth of 45 bits.

The essence of the claimed device digitization frame containing the lens and the matrix elements in the image receiver, the performance of each element of one matrix Converter "brightness radiation code that executes for a period of three consecutive frame conversion "brightness radiation code" black is tov R, G, 15 bits in each code, and the introduction to each block of keys encoders according to the number of elements in the matrix of the image receptor.

The device 1 of the digitization frame is presented in figure 1, the inverter brightness radiation code" - 2, 3, a functional block part of the key to figure 3, the registers unit - Fig,4.

The device 1 of the digitization frame holds the lens 2 in the focal plane which is receiving the receiver side 3 images, which contains a matrix of 106elements, respectively, resolution ratio: 1000 rows by 1000 times in a row. Three groups of outputs /number of colors/ with matrix elements each including a first 4 × 106connected to the inputs respectively from the first to the 4-106blocks 4, 5, 6 keys, which outputs from the first 4×106connected to the inputs of blocks 7, 8, 9 registers. The device 1 comprises a generator 10 control signals issuing from the first output pulses with a frequency of 75 Hz, is connected in parallel to the inputs of the first 11... and the second 112distributors of pulses from the second output is an outstanding sampling pulses codes fd25 MHz, is connected to the second control inputs of the blocks 7, 8, 9 registers with the third outstanding output pulses of the frame rate fto25 Hz with a period frame duration 40 MSconnected computers is) to the first control inputs U fromkeys 28 /4/ in blocks 7, 8, 9 registers, the first to fourth outputs of which are the outputs of the device 1 of digitization. Each element of the matrix Converter is “the brightness of the radiation source and includes /3/ opaque housing 12 form a rectangular parallelepiped of insulating material in the input box which is placed an opaque MicrosoftR 13, attached to the free end of its micromeasurement 14, in the absence of a control signal input window closed opaque mikroverfilmung 13. The other end of micromeasurement 14 is rigidly fixed in the housing 12 and is connected through diodes D1, D2, D3 to the first - third outputs of the distributor 111the pulses. Opaque MicrosoftR 13 performs the function of the front door, opening the entrance for the passage of the irradiation on the microlens 15, mounted in an opaque wall of the housing 12. For microlens role of micro, one after the other, there are three colored microsatellite 16, 17, 18 basic colors R, G, B, each of them attached properly to the free end of its micromeasurement 19, 20, 21, the second ends of which are fixed in the housing 12, and the control inputs of microphytobenthos connected: micromeasurement 19 to the output 1 of the distributor 111pulses, micromeasurement 20 to the output 2 of the distributor 11 1pulses, micromeasurement 21 to the output unit 3 of 111. Driving pulses from the outputs of the distributor 111pulses have a frequency of 75 Hz /25 Hz×3/, each with duration of 1 MS with an amplitude sufficient to actuate microphytobenthos 19, 20, 21, working on bending deformation [5 c. 26]. For the three color microsociology on the optical axis of a micro 15 and at an angle of 45° to it consistently at an adequate distance from each other and are rigidly fixed on the number of digits in the code from the first to the fifteenth translucent micromirrors 221-15. On the side of the hull, which turned micromirrors are fifteen of the respective photodetectors 231-15receiving reflected from microthermal 22 radiation and emits electrical pulses to the inputs of their pulse amplifiers 241-15functional parts of block 4; 5, 6[6. S. 5] Luminous flux after color microsatellite arrives at the centers of translucent microthermal 22, each of which passes in the next microthermal the amount of light attenuated twice, respectively, of the principle of binary code, translucent micromirrors have beamsplitter coating that performs the ratio of reflected radiation to a missed like 1:0,5 [2 p.223]. Each transducer brightness radiation code" served in some is by its functional part in unit 4. 5, 6, which includes the /3/ fifteen pulse amplifiers 241-15sixteen keys 251-16and one encoder 26, the first to fourth outputs of which are outputs of the block of keys 4, 5, 6. Functional parts convert the 15-bit codes sent to it, in the four bit codes issued from the encoder 26. Functional parts in unit 4, 5, 6 keys on the number of elements in the matrix 106. Functional parts are made identical, the connection of the inverter brightness of the radiation source and serving its functional parts shown in figure 3.

Converting the brightness of the radiation code", 3. In the absence of control pulses from the distributor 111pulses micromeasurement 14, 19. 20, 21 are in an unstressed condition: opaque MicrosoftR 13 closes the input window of the housing 12, and the color micrometeorite 16, 17, 18 outside the zone of passage of the beam passing through the microlens 15. With the arrival of the control pulse 1 MS from the first output of the distributor 111MicrosoftR 13 bending of microphenomena 14 opens at 1 MS input window, micromeasurement 19 is activated and enters in the flux after the microlenses 15 red MicrosoftR 16, which transmits red radiation translucent micromirrors 22, since the micromirrors 2215reflected radiation from which Postup is et in the amplifier 24 15the pulse which opens parallel keys 2515and 2516that red radiation is delivered sequentially to the following translucent micromirrors until the light will weaken to the extent not causing actuation of the photodetector 24. Reflected from microthermal radiation received in their photodetectors 23, outstanding electrical impulses in their pulse amplifiers 24 in blocks 4 /5, 6/, with the arrival of the pulse in the amplifier 2414it strengthens the pulse, which, with its exit closes the key 2515and opens the key 2514the pulse from the amplifier 2413closes the key 2514and opens the key 2513, then the process continues at the speed of light passing through the translucent microseries 22. With the weakening of the radiation to the failure of a sensor 23, the output signal from the amplifier corresponding 24 does not come to the opening of the next key 25. For example take that last worked photodetector 238from micromirrors 228: pulse amplifier 248opens the key 258and closes the key 259. At this point, the keys 259-15all closed, and the keys 251-7still not open. With the arrival of the pulse Uvyd1 MS /75 Hz/ s allocator 112pulses it receives in parallel to the inputs of three keys 2516blocks 4, 5, 6 keys, each block of 4, 5,6 from the output of the key 2516impul is 1 MS U vydcomes in parallel to the signal inputs of all the keys 251-15but the keys 259-15/3/ are closed by signals U3from the pulse amplifier 249-14and the keys 251-17not yet open, the outdoor only one key 258the pulse from the output of the key 2516passes through the public key 258and with its output pulse is supplied to the eighth input of the encoder 26, which re-encodes the eighth pulse discharge 15-bit code in a four-digit code: 1000, this code and entered in block 7 of registers. Combination [7 s] the four-digit code after re-encoding in table 1.

Table 1
Codes from the outputs of the keys 251-15Codes from outputs of blocks 4, 5, 6 after re-encoding
0000000000000010001 /1/
0000000000000100010 /2/
0000000000001000011 /3/
..
..
..
001000000000000 1101 /13/
0100000000000001110 /14/
1000000000000001111 /15/

Four-digit codes with blocks 4, 5, 6 keys in parallel form are placed in blocks 7, 8, 9 registers at the end of the first third in 13 MS frame and the inverter brightness radiation code" comes in its original state. At the end of the first 13 MS frame pulse from the second output of the distributor 111is fed to the input again piezoelectric 14 and to the input of piezoelectric 20 green microsatellite 17: phasedetector 14 opens the input window and in parallel, phasedetector 20 enters the green MicrosoftR 17 in the flow of light, the green light comes on translucent micromirrors 221-15, the formation of the color codes G in converters brightness radiation code" in all the elements of the matrix.

At the end of the second 13 MS frame pulses from the third output of the distributor 111pulse arrives at the inputs of piezoelectric 14 and to the input of piezoelectric 21 blue microsatellite 18: again opens the input window, and the blue MicrosoftR 18 is introduced into the light and transmits blue light on the micromirrors 22, is formed by the color code In all converters of the elements of the matrix. After the first third /13 MS/ frame period p is Opredelitel 11 2pulse outputs from the second output signal issuing Uvydon the signal input keys 2516in parallel to all functional parts of the unit 4, and all codes 106color R act in parallel to the second encoding in the encoders 26, from 106the four-digit color codes R proceed in parallel in the unit 7 registers.

After the second third of the frame period dispenser 112pulse outputs the third output signal Uvydon the signal input keys 2516all functional parts of the block 5, and all color codes G do in parallel on the second encoding in the encoders 26, which codes 106color G do in parallel in a block of 8 registers.

After the third part 13 MS period frame dispenser 112pulses from the first output signal UGNIon the signal input keys 2516all functional parts of a block of 6 keys, all color codes come In parallel to the second encoding their encoders, 26, from 106the four-digit color codes In parallel to arrive at unit 9 registers. At the end of the period of the frame 40 MS in the registers 271-106 blocks 7, 8, 9 focused codes accordingly colors R, G, B. the Blocks 7, 8, 9 registers are made identical /4/, each including first to 106the four-digit registers 27 and connected in series key 8 and the valve 29 pulses. Information input units 7-9 are the inputs of the four bits of all registers 271-106, only inputs 4×106, outputs are bitwise combined first-fourth output unit 7-9 registers. The first Manager of the entrance is the first control input Ufromkey 28 that is connected to the third output of the pulse generator 10, an opening front front key 28 on the duration of the frame is 40 MS, the second managing input signal is input key 28 that is connected to the second output 25 MHz pulse generator 10. Open the key 28 flows into the dispenser 29 pulses pulses 25 MHz, which are the signals issuing codes sequentially from the registers 271-106 playback frames or registration codes frame in the appropriate device registration. Frame rate adopted 25 Hz, the number of rows in the frame 1000, counts at line 1000, the sampling frequency code is:

fd=25 Hz × 1000×1000=25 MHz.

The operation of the device.

Lens 2 projects the image of the subject on the input window of all matrix elements of the receiver 3 images. The converters in the elements of the matrix give the pulses from the photo receivers 231-15in pulse amplifiers 241-15units 4-6, block 4 receives 106color codes R, block 5 - colour codes G, block 6 - color codes Century. In blocks 4-6 you is within each group first and re-encoding, outputs of blocks 4, 5, 6 keys tetrahydrate codes come into their registers 271-106. One frame period is digitization. Serial receive the elements of the matrix codes three colors allows you to increase the resolution of the receiver 3 of the image re-encoding without information loss can reduce the connection lines from the blocks to 4-6 units 7-9 11, 25 timesto apply in registers blocks 7-9 four-digit registers, and for the registration of digitized video information will be required on the carrier 11, 25 times less space.

Sources used

1. RF patent №2452026 C1, CL G06T 9/00, bul from 27.05.12, prototype.

2. B.N. Runners, I.E. Sakazov. Theory of optical systems. M, 1973, p.223.

3. Ashkenazi GI Color in nature and technology. ISD-E. M., 1985, C, 15th row from the top.

4. V.V. PIASECKI. Colour TV in questions and answers. Minsk. 1986, s.

5. A.F. Plonski, V.I., Teare. Piezoelectronic, "Knowledge", M, 1979, p.26, 21st row from the top,

6. V.V. Frolov. Language radiochem. Ed 2-E. M., "Radio and communications, 1989, p.5,

7. V.N. Totemic. Telemechanics. 2nd ed, M, 1985, s fig.8.5.

Device to capture the image frame containing the lens and the image receiver, containing the matrix elements by the number of permissions of the frame, the first through third blocks of keys, the first through third blocks re escrow and generator control signals, issuing from the second output pulses of the sampling codes, with the third output pulses with a duration period of the frame, each element of the matrix Converter includes "the brightness of the radiation code", containing an opaque body shape rectangular parallelepiped of insulating material, an opaque partition which there is fixed a microobjective on the optical axis which is at an angle of 45° thereto sequentially at an appropriate distance and are rigidly fixed on the number of digits in the code translucent micromirrors, each located ahead of translucent microthermal be suspended for the following amount of light attenuated twice, in transparent microthermal have beamsplitter coating performing the ratio of reflected radiation to missed as 1:0.5, and on the side of the hull, which turned translucent micromirrors are arranged according to the number of translucent microthermal corresponding photodetectors receiving reflected by microcircular radiation, the outputs of the photodetectors are informational outputs of each inverter brightness radiation code, the first control inputs of the three blocks of registers combined and connected to the third generator output control signals, the second output of which is connected to the joint second administration is allowing the input blocks of registers, the outputs which are the first, second and third outputs of the device to capture the image frame, the blocks of registers are made identical, and each includes registers, the number of the resolution matrix 106and 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 inputs of all the registers that are connected to the respective outputs of your block keys, control inputs are: first - the first control input Ufromkey connected to the third control generator output control signals, the second signal input of the key is connected to the second generator output control signals, the outputs of all registers in each block register bitwise and United are the outputs of block registers, the outputs of the first and third blocks of registers are the first-third outputs of the device to capture the image frame, characterized in that it introduced the first and second valves pulses whose inputs are combined and connected to the first output /75 Hz/ generator control signals, the first through third outputs of the first pulse distributor connected: the first is connected in parallel to the inputs of all the first diode is in D1 and to the control inputs of all microphytobenthos red microcolorimetric all converters brightness radiation - code", the second output is connected in parallel to the inputs of all of the second diode D2 and to the control inputs of all microphytobenthos green microcolorimetric all converters brightness emission code, a third output connected to the inputs of all of the third diode D3 and to the control inputs of microphytobenthos blue microcolorimetric all converters brightness radiation code, the first through third outputs of the second pulse distributor connected: connected to the first control input Uvydthe third block of keys, the second is connected to the control input Uvydthe first block of keys, a third output connected tothe control input Uvydthe second block of keys, each transducer brightness of the radiation code in the input end of the casing in front of the microlens opaque MicrosoftR attached properly to the free end of its micromeasurement, the second end of which is rigidly mounted in the transducer housing is "the brightness of the radiation code, and the control input of micromeasurement connected to the combined outputs of the first and third diodes, micro sequentially, there are three colored microsatellite primary colors R, G, in the sequence of red, green and blue, each of them attached to the free end of its micro is getelement, the second ends of which are fixed in the housing of the inverter brightness radiation code, and the control inputs of microphytobenthos connected: red microsatellite to the input of the first diode D1, a green micro-filter to the input of the second diode D2, blue microsatellite to the input of the third diode D3 blocks the keys are made identical, and each contains the appropriate functional parts according to the number of elements in the matrix /number of converters brightness radiation code"/, each functional part caters to your inverter brightness radiation code, functional parts are identical, each including a number of pulse amplifiers on the number of digits in the code sixteen keys and the encoder, the input pulse amplifiers are the first to fifteenth informational inputs and connected to the respective numbers of the photodetectors in the inverter brightness radiation code, the outputs of the pulse amplifiers from the first to the fourteenth connected identically, each connected in parallel to the first control input Ufromthe key of your room and to the second UCthe input of the key for the next room, exit the fifteenth pulse amplifier connected in parallel to the first Governor of the Ufromthe inputs of the fifteenth and sixteenth key signal input sixteenth key is a control input is ω U vydits functional parts and connected to the corresponding output of the second pulse distributor, the output of the sixteenth key is connected in parallel to the signal inputs of the first to fifteenth of the keys to his second Manager UCthe input, the outputs of the first to fifteenth of keys connected to the first to fifteenth inputs of the encoder, the first to fourth outputs of which are the outputs of each functional part in the block of registers, the outputs from each unit key 4×106that are connected to many of the same inputs his block of registers, each of which includes first to 106the four-digit registers, the first to fourth outputs which bitwise and United are the first-fourth output device for capturing an image frame.



 

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2 cl, 5 dwg

FIELD: physics.

SUBSTANCE: two-dimensional presentation of the inspected electronic image is divided into overlapping blocks; k-level wavelet transformation is performed on each block; horizontal, vertical, high-frequency and low-frequency coefficients of the performed wavelet transformation of a block are generated; statistical characteristics of the wavelet transformation coefficients are calculated, from which a vector of statistical characteristics of a block is formed; the vector of statistical characteristics of a block is compared with previously formed vectors of statistical characteristics of knowingly modified electronic images and with previously formed vectors of statistical characteristics of knowingly modified electronic images; a block is identified as modified if the difference between its vector of statistical characteristics and the closest previously formed vector of statistical characteristics of knowingly modified electronic images.

EFFECT: high accuracy of determining coordinates of the modified part of an electronic image.

5 cl, 6 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

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