Frame image digitisation apparatus

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

 

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 pulse frame rate of 25 Hz, the second output pulses of the sampling frequency of 25 MHz codes, with the third output pulse frequency frame period frame duration on the control inputs of the keys in blocks of registers, the outputs of which are the outputs of the device. The disadvantage of the prototype is the implementation of each element of the matrix by the triad of the three converters brightness radiation code", each of which converts radiation of the same color of the three R, G, B in the code, with three converters element of the matrix has a large transverse dimensions, which reduces the resolution matrix of the image receptor. The purpose of the invention is to obtain codes of the three colors R, G, B one Converter that will create conditions for increasing the resolution of the frame.

The technical result is you shall olnine matrix elements of the transducers brightness emission colors of R, G, B three code and receiving conditions of increasing the resolution of the frame.

The essence of the proposed device containing a lens, matrix elements, three registers unit and a generator of control signals, each element of the matrix Converter "brightness emission colors of R, G, B three code" and the introduction to the image receiver unit shift registers including a corresponding number of pairs of serially connected shift register and encoder.

Device to capture the image of the frame of Fig.1, the inverter brightness emission colors of R, G, B three code - Fig.2, the disk sensor - Fig.3, the registers unit - Fig.4.

Device to capture the image frame /Fig.1/ includes a lens 1, in the focal plane which is receiving the receiver side 2 image containing a matrix of 106items presented converters brightness emission colors of R, G, B three code entered in the receiver 2 of the image frame block 3 shift registers, including the number of photodetecting sectors in the disk photodetector pairs connected in series eight-bit register 19 shift and the encoder 20 /Fig.2/. Three groups of outputs 4×106codes of the colors R, G, B from the receiver 2 images /Fig.1/ is connected to many of the same inputs, respectively, three blocks 4, 5, 6 registers. Eliminate the STV digitization enables the generator 7 control signals, issuing from the first output pulses Uto25 Hz frame rate, connected to the control inputs of the converters in the elements of the matrix from the second output pulses 25 MHz sample rate codes Udconnected to the second control inputs 4, 5, 6 registers, and the third output pulses 25 Hz with a period frame duration 40 MS, connected to the first control inputs Ufromblocks 4, 5, 6 registers, Fig.4. Each element of the matrix Converter is "the brightness of the emission colors of R, G, B three source includes /Fig.2/ opaque housing 8, in the input window which is one opaque MicrosoftR 9, performing the role of a front door attached to the first /free/ the end of micromeasurement 10, in the absence of a control signal from block 7 /output 1/ input window casing 8 is closed by mikroverfilmung 9, second end micromeasurement 10 is rigidly fixed in the housing 8 and through the diode connected to the first output of the generator 7. The control pulse has a duration of 0.1 MS, frequency 25 Hz and with an amplitude sufficient to trigger micromeasurement 10 bending [2, C. 26], and opens the passage of radiation from the subject on the microlens 12. For the microlens, which is the lens on its optical axis and at an angle of 45° to it consistently at the same distance to each other and are rigidly fixed at Colorado code in eight translucent microthermal 13 1-8each located ahead of microthermal 13 skips the next behind the flux is weakened in two times, for which the micromirrors are beamsplitter coating that performs the ratio of reflected radiation to a missed like 1:0,5 [3, S. 223]. Directly in the wall of the casing 8, which is rotated micromirrors 13, in the places of arrival of the reflected radiation are eight identical disk photodetectors 141-8, each of which has a disk shape with a diameter, fully accepting the cross section of the reflected from the micromirrors radiation and containing the number of colors R, G, B equal to the square of the first, second and third photodetecting sectors /Fig.3/. The first focal sector R from the total reflected radiation takes his red part of the radiation, which at the receiving side sector R has a red color filter, the second focal sector G to receive the green part of the reflected radiation has on the incoming side, the green color filter, the third photodetector sector B on the receiving side has a blue B color filter. For equal conditions of reception of radiation filters have the same multiplicity. Each photodetector sector has its output connected to the input of your pulse amplifier, Fig.2. Pulse amplifiers with equal gain and made printed outwardly on the side of the photodetector disks 14 1-8.

The outputs of the first photodetector sectors R-makers red radiation in each photodetector disk 14, are connected to the inputs of the first pulse amplifiers 151, 161, 171and 181in each group of three pulse amplifiers 151-3, 161, 171-3and 181-3. The output of the second photodetector sector G, receiving the green part of the radiation that is connected to the input of the second pulse amplifier in each group of three pulse amplifiers. The output of the third photodetector sector B, receiving the blue part of the radiation that is connected to the third input of the pulse amplifier in each group of three pulse amplifiers.

The outputs of the first pulse amplifiers 151, 161, 171and 181through diodes are combined and connected in block 3 shift registers /Fig.2/ to the input of the first 191the shift register, the input of which is the input of the low order eight bits of the shift register. Following the pulses from the first pulse amplifiers 161, 171and 181,will shift pulse from the LSB of the register in the following the most significant bit of the shift register 191. The outputs of the second pulse amplifiers 152, 162, 172, 182through diodes are combined and connected to the input of the LSB of the second register 192shift, and after the duty to regulate the same process of shifting from Junior level to senior. The outputs of the third pulse amplifiers 153, 163, 173, 183also through diodes are combined and connected to the input of the LSB in register 193shift coming from the pulse amplifiers pulses after the first also perform a shift pulse from Junior level to senior. In the result after the passage of the radiation in microseries in registers 19 of the shift has already formed three codes of the three radiations colors R, G, B. ward on the control inputs of shift registers 191-3signal Uvydeight-digit codes with a pulse in one of the bits of the registers 19 are in their encoders 201-3in a parallel form. The encoders 201-3coding the non discharge, which is a single pulse. From the outputs of the encoders followed by a four-digit codes in parallel, which are received in blocks 4, 5, 6 registers /Fig.1/: color codes R enter block 4, color codes G in block 5, color codes B in block 6. Combinations of four-digit codes from the outputs of the encoders 201-3shown in table 1.

Table 1
Codes with output registers 191-3shiftCodes from the outputs of the encoders 201-3
00000001 0001 /1/
000000100010 /2/
000001000011 /3/
000010000100 /4/
000100000101 /5/
001000000110 /6/
010000000111 /7/
100000001000 /8/

Blocks 4, 5, 6 are of identical /Fig.4/, each including four-digit registers 231-106 and connected in series key 21 and the valve 22 pulses. Information inputs in each block of registers 4, 5, 6 are first to fourth inputs of all the registers 23, inputs 4×106, outputs are bitwise combined outputs of all registers 23. The first Manager of the entrance is the entrance Ufromkey 21, is connected to the third output unit 7, the second managing input Udis the signal input key 21, is connected to the second output unit 7. The key opens the front edge of the pulse 25 Hz for a duration of 40 MS, closes the rear edge of a pulse of 25 Hz. When the public key 21 to the input of the distributor 22 pulses are pulses Ud25 MHz, the signals from the outputs of the block 22 are signals UID codes sequentially from the register 23 with the first of 106on playback of the video or write it on the appropriate media.

The operation of the device to capture the image frame.

Lens 1 projects the image frame to the inputs of the matrix elements in the receiver 2 images, four-digit codes with block 3 receiver 2 images are issued in blocks of registers 4, 5, 6 /Fig.1/. The digitization frame is for one period of 40 MS.

The use of transducers brightness emission colors of R, G, B three code" as elements of the matrix allows to increase the resolution of the matrix three times against the prototype.

Introduction the receiver 2 image block 3 comprising shift registers and encoders serving converters brightness emission colors of R, G, B three code", free from the necessary connections among the 8×106×3, available in the prototype from the image receptor to three blocks of keys 4, 5, 6 [1]. Mode four-digit codes are translated in the reverse order decoders in the eight-bit codes [4, S. 207].

Sources used

1. RF patent №2452026 C1, CL G06T 9/00, bull. No. 15 from 27.05.12,

2. A. F. Plonski, C. I., Teare. Piezoelectronic. M., ed. "Knowledge" M, 1979, S. 26.

3. B. N. Runners, N. P. Sakazov. Theory of optical systems. M, 1973, S. 223.

4. C. N. Totemic. Telemechanics. 2 ed M, 1985, S. 202, 207.

5. Century Century Frolov. Language radiochem, ed. 2-that is, Radio and communications, 1989, S. 13, Fig.6b.

Device to capture the image frame containing the lens, the image receiver containing matrix, located in the focal plane of the lens from the elements, which converters radiation codes by the number of resolution frame 106, each of which includes an opaque housing, in front of which partition is the microobjective on the optical axis which is at an angle of 45° to it consistently each other and are rigidly fixed on the number of digits in the code translucent micromirrors, each located ahead of microthermal skips to next flux is weakened in two times, the micromirrors have a beam-splitting coating that performs the ratio of reflected radiation to missed as 1:0.5, and on the side of the transmitter, which turned micromirrors and the number of photodetectors are receiving from microthermal reflected radiation, device to capture the image frame includes three registers unit and generator control signals issuing from the first output pulse of the frame, connected to the control inputs of the elements of the matrix from the second outstanding output pulses of the sampling frequency codes /25 MHz/, podkluchen the th to the second control inputs of the three blocks of registers, the third outstanding output pulses of the frame rate with the period duration of the frame, are connected in parallel to the first control inputs of the three blocks of registers made identical, each including registers, the number of the resolution matrix connected in series and includes a key and a pulse distributor whose outputs from the first to the 106permissions matrix connected in series to the inputs Uvydin each case, the information input unit registers are the parallel inputs of bits of all registers, control inputs are: first - the first control input Ufromkey connected to the third generator output control signals, the second signal input of the key is connected to the second generator output control signals, the outputs of the bits of the block register bitwise and United are the outputs of the device to capture the image frame, wherein the image receiver is entered the unit shift registers, including the number of converters /elements in the matrix/ and take the color of the radiation R, G, /3×106/ pairs connected in series eight-bit shift register and encoder, and outputs of the encoders represent the number of colors R, G, In three groups of 4×106outputs from the image receiver, connected sootvetstvenno the colors R, G: the first group of outputs to many of the same inputs of the first register unit, the second group of outputs to many of the same inputs of the second register unit, the third group of outputs connected to the inputs of the third block of registers, the elements of the matrix are made converters brightness emission colors of R, G, B - three code, in the input window of an opaque body which is opaque MicrosoftR the role of a front door attached to the first end of micromeasurement, the second end of which is rigidly mounted in the transmitter housing and turn the diode connected to the first generator output control signals /25 Hz/, photodetectors, located on the corresponding side of the transmitter in places receipts reflected from microthermal radiation is made in the form of a disc, with a diameter of fully receiving reflected radiation, and contain a one-dimensional disk three-dimensional sector, the first focal sector for the reception of the red reflected from the micromirrors radiation has on the receiving side red R color filter, the second focal sector has on the receiving side of the green G color filter, the third photodetector sector is at the receiving side In blue light filter, each photodetector sector has its output connected to the input of your pulse amplifier, accordingly, three of fotopriemnik sectors to each photodetector disk connected three pulse amplifier with equal gain, the outputs of the first photodetector sectors R connected to the inputs of the first pulse amplifiers in each group of three pulse amplifiers, the outputs of the second photodetecting sectors G is connected to the inputs of the second pulse amplifiers in each group of three pulse amplifiers, the outputs of the three focal sectors are connected to the inputs of the third pulse amplifiers in each group of three pulse amplifiers, each inverter brightness emission colors of R, G, In three code outputs the first pulse amplifiers of the three through diodes are combined and connected to the input of the LSB in the first shift register group of serially connected shift register and encoder serving this Converter, the outputs of the second pulse amplifiers of the three through diodes are combined and connected to the input of the LSB in the second shift register group serving the Converter outputs a third pulse amplifiers of the three through diodes are combined and connected to the input of the LSB in the third shift register serving the same Converter.



 

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