CN102572317B - Anti-blooming method for image sensor - Google Patents
Anti-blooming method for image sensor Download PDFInfo
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- CN102572317B CN102572317B CN201110458318.0A CN201110458318A CN102572317B CN 102572317 B CN102572317 B CN 102572317B CN 201110458318 A CN201110458318 A CN 201110458318A CN 102572317 B CN102572317 B CN 102572317B
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Abstract
The invention discloses an anti-blooming implementation method for an image sensor. Hardware consists of a microprocessor or programmable logic circuit, a CCD (Charge Coupled Device) front-end signal processor AD9923 and a CCD image sensor ICX274, wherein the microprocessor or programmable logic circuit is used for transmitting data to the CCD front-end signal processor through a serial communication interface; the CCD front-end signal processor is used for transmitting a driving signal to the CCD image sensor under dual control of an original normal light-sensitive driving time sequence and a newly-added blooming-removing driving time sequence; and the CCD image sensor is used for outputting a blooming-removed image signal. The blooming-removing driving time sequence is arranged between original two frames of normal light-sensitive driving time sequences. The method has the advantages of easiness, wide application range, high operability and remarkable effect.
Description
Technical field
The invention belongs to digital camera, particularly high-definition digital field of cameras, relates to the method for the anti-halation of a kind of imageing sensor.
Background technology
Increasingly be widely used in the reality of traffic surveillance and control system at digital camera, night, the problem of car light halation was outstanding day by day.Due to night car light halation rung traffic surveillance and control system pickup quality, brought trouble to traffic administration.Although anti-halation technology has been carried out much research, be all difficult to thoroughly solve the halation problem of CCD imaging.Prior art is DeGrain not only, is also difficult to be implemented at production link.Prior art shows, when ccd image sensor sensitization, be consistent the sensitive time of all pixels, but the light radiant flux of each pixel has very large difference, in the time that the light radiant flux difference between pixel is excessive, for the pixel that guarantees low-light level produces enough electric charges, the electric charge that high brightness respective pixel produces is by saturated, unnecessary electric charge can spill in the pixel cell or vertical transfer register closing on, make the pixel of closing on or the sensitization by the pixel cell of this vertical register, more than actual light radiant flux, causes image fault with vertical movement.
Summary of the invention
The object of this invention is to provide the method for the anti-halation of a kind of effective imageing sensor, the method for the anti-halation of digital camera that this method is is hardware foundation based on AD9923 CCD front end signal processor and ICX274 ccd image sensor.For ICX274 ccd image sensor, do not use mechanical shutter, the time for exposure is by electronic shutter control.The control method of ICX274 electronic shutter is: in photostable time period, each guild produces a SUBCK signal electric charge is imported and overflows ditch, removes subsequently the electric charge that overflows ditch.But, if certain pixel illumination is too high, within the sensitive time of a line, also reaching capacity even overflow the electric charge of ditch, unnecessary electric charge flows into vertical transfer register mostly.Flow into vertical transfer register because there is saturated charge every provisional capital, the same column pixel that the electric charge of inflow is passed by every row vertical movement that is added to, causes high illumination pixel correspondence to show a longitudinal light belt.Night, the high light of automobile headlamp will produce longitudinal light belt.The present invention is by writing the dizzy problem that drives sequential to solve the longitudinal anti-halation of ccd video camera of delustering at serial line interface.
The object of the invention is to reach like this: the method for the anti-halation of a kind of imageing sensor, it is characterized in that: hardware is made up of microprocessor or Programmable Logic Device, CCD front end signal processor, ccd image sensor, described CCD front end signal processor is video front chip AD9923, and described ccd image sensor is image sensor IC X274.Microprocessor or Programmable Logic Device are passed through serial communication interface transmitting control data to CCD front end signal processor, CCD front end signal processor is being controlled under the control of data, drive between sequential in the normal sensitization of original two frame, increase the dizzy sequential that drives of delustering, under the control of driven sequential and the dizzy driving sequential of delustering, ccd image sensor is exported the dizzy picture signal of delustering.Describedly drive between sequential and increase the delustering dizzy sequential that drives in the normal sensitization of original two frame, the delustering dizzy sequential that drives is video front chip AD9923 to be produced by controlling serial communication interface by microprocessor or Programmable Logic Device.
The described dizzy sequential that drives of delustering is produced video front chip AD9923 write control data by the serial communication interface of microprocessor or Programmable Logic Device, is, by serial communication interface, the serial line interface of AD9923 is write to sixteen bit system data successively by following flow process:
The 1st step writes 0X " 00020004b7 " the 2nd step and writes 0X " 00000004b6 "
The 3rd step writes 0X " 00000004b5 " the 4th step and writes 0X " 00000204b4 "
The 5th step writes 0X " 00000004ba " the 6th step and writes 0X " 00000004b9 "
The 7th step writes 0X " 00000024b8 " the 8th step and writes 0X " 00000004be "
The 9th step writes 0X " 00008814bd " the 10th step and writes 0X " 01787804bc "
The 11st step writes 0X " 100000047a " the 12nd step and writes 0X " 20d3069479 "
The 13rd step writes 0X " 0f00003478 " the 14th step and writes 0X " 000200147e "
The 15th step writes 0X " 000000047d " the 16th step and writes 0X " 016803347c "
The 17th step writes 0X " 3ffffff483 " the 18th step and writes 0X " 3ffffff481 "
The 19th step writes 0X " 3ffffff480 " the 20th step and writes 0X " 0200034487 "
The 21st step writes 0X " 0e03fff485 " the 22nd step and writes 0X " 0200034484 "
The 23rd step writes 0X " 000000048b " the 24th step and writes 0X " 000000048a "
The 25th step writes 0X " 0000000489 " the 26th step and writes 0X " 0000000488 "
The 27th step writes 0X " 3ffe00048f " the 28th step and writes 0X " 100000048e "
The 29th step writes 0X " 0f0010b48c " the 30th step and writes 0X " 0002001493 "
The 31st step writes 0X " 0000000491 " the 32nd step and writes 0X " 3ffffff497 "
The 33rd step writes 0X " 3ffffff496 " the 34th step and writes 0X " 3ffffff495 "
The 35th step writes 0X " 3ffffff49b " the 36th step and writes 0X " 3ffffff49a "
The 37th step writes 0X " 0e03fff499 " the 38th step and writes 0X " 000000049f "
The 39th step writes 0X " 000000049e " the 40th step and writes 0X " 000000049d "
The 41st step writes 0X " 000000049c " the 42nd step and writes 0X " 3ffe0004a3 "
The 43rd step writes 0X " 20d30694a1 " the 44th step and writes 0X " 0f001034a0 "
The 45th step writes 0X " 00020014a7 " the 46th step and writes 0X " 00000004a5 "
The 47th step writes 0X " 01000014a4 " the 48th step and writes 0X " 3ffffff4ab "
The 49th step writes 0X " 3ffffff4aa " the 50th step and writes 0X " 3ffffff4a9 "
The 51st step writes 0X " 3ffffff4a8 " the 52nd step and writes 0X " 3ffffff4af "
The 53rd step writes 0X " 3ffffff4ae " the 54th step and writes 0X " 0e03fff4ad "
The 55th step writes 0X " 3ffffff4ac " the 56th step and writes 0X " 00000004b3 "
The 57th step writes 0X " 00000004b2 " the 58th step and writes 0X " 00000004b1 "
The 59th step writes 0X " 00000004b0 " the 60th step and writes 0X x " 0000000403 "
The 61st step writes 0X " 0092013402 " the 62nd step and writes 0X " 0000000401 "
The 63rd step writes 0X " 0000000407 " the 64th step and writes 0X " 0000000405 "
The 65th step writes 0X " 000000040b " the 66th step and writes 0X " 00fe02540a "
The 67th step writes 0X " 0000000409 " the 68th step and writes 0X " 000000040f "
The 69th step writes 0X " 009201340e " the 70th step and writes 0X " 000000040d "
The 71st step writes 0X " 0000000413 " the 72nd step and writes 0X " 0000000412 "
The 73rd step writes 0X " 0000000411 " the 74th step and writes 0X " 0000000410 "
The 75th step writes 0X " 0000000417 " the 76th step and writes 0X " 0000000416 "
The 77th step writes 0X " 0000000415 " the 78th step and writes 0X " 0000000414 "
The 79th step writes 0X " 000000041b " the 80th step and writes 0X " 000000041a "
The 81st step writes 0X " 0000000419 " the 82nd step and writes 0X " 0000000418 "
The 83rd step writes 0X " 000000041f " the 84th step and writes 0X " 000000041e "
The 85th step writes 0X " 000000041d " the 86th step and writes 0X " 000000041c "
The 87th step writes 0X " 0000000423 " the 88th step and writes 0X " 0000000422 "
The 89th step writes 0X " 0000000421 " the 90th step and writes 0X " 0000000420 "
The 91st step writes 0X " 0000000427 " the 92nd step and writes 0X " 0000000426 "
The 93rd step writes 0X " 0000000425 " the 94th step and writes 0X " 00fe025424 "
The 95th step writes 0X " 000000042b " the 96th step and writes 0X " 000004442a "
The 97th step writes 0X " 0000000429 " the 98th step and writes 0X " 0000008428 "
The 99th step writes 0X " 000000042f " the 100th step and writes 0X " 000000042e "
The 101st step writes 0X " 000000042d " the 102nd step and writes 0X " 000000042c "
The 103rd step writes 0X " 0000000433 " the 104th step and writes 0X " 0000000432 "
The 105th step writes 0X " 0000000431 " the 106th step and writes 0X " 0000000430 "
The 107th step writes 0X " 0000000437 " the 108th step and writes 0X " 0000044436 "
The 109th step writes 0X " 0000000435 " the 110th step and writes 0X " 0000008434 "
The 111st step writes 0X " 000000043b " the 112nd step and writes 0X " 000000043a "
The 113rd step writes 0X " 0000000439 " the 114th step and writes 0X " 0000000438 "
The 115th step writes 0X " 000000043f " the 116th step and writes 0X " 000000043e "
The 117th writes 0X " 000000043d " the 118th step writes 0X " 000000043c "
The 119th step writes 0X " 0000000443 " the 120th step and writes 0X " 0000000442 "
The 121st step writes 0X " 0000000441 " the 122nd step and writes 0X " 0000000440 "
The 123rd step writes 0X " 0000000447 " the 124th step and writes 0X " 0000000446 "
The 125th step writes 0X " 0000000445 " the 126th step and writes 0X " 0000000444 "
The 127th step writes 0X " 000000044b " the 128th step and writes 0X " 000000044a "
The 129th step writes 0X " 0000000449 " the 130th step and writes 0X " 0000000448 "
The 131st step writes 0X " 000000044f " the 132nd step and writes 0X " 000000044e "
The 133rd step writes 0X " 000000044d " the 134th step and writes 0X " 000000044c "
The 135th step writes 0X " 0000000453 " the 136th step and writes 0X " 0000000451 "
The 137th step writes 0X " 00a2001450 " the 138th step and writes 0X " 0000000457 "
The 139th step writes 0X " 0000000455 " the 140th step and writes 0X " 00c2031454 "
The 141st step writes 0X " 000000045b " the 142nd step and writes 0X " 000000045a "
The 143rd step writes 0X " 0000000459 " the 144th step and writes 0X " 00c2031458 "
The 145th step writes 0X " 000000045f " the 146th step and writes 0X " 000000045e "
The 147th step writes 0X " 000000045d " the 148th step and writes 0X " 0000000463 "
The 149th step writes 0X " 0000000462 " the 150th step and writes 0X " 0000000461 "
The 151st step writes 0X " 0000000460 " the 152nd step and writes 0X " 0000000467 "
The 153rd step writes 0X " 0000000466 " the 154th step and writes 0X " 0000000465 "
The 155th step writes 0X " 0000000464 " the 156th step and writes 0X " 000000046b "
The 157th step writes 0X " 000000046a " the 158th step and writes 0X " 0000000469 "
The 159th step writes 0X " 0000000468 " the 160th step and writes 0X " 000000046f "
The 161st step writes 0X " 000000046e " the 162nd step and writes 0X " 000000046d "
The 163rd step writes 0X " 000000046c " the 164th step and writes 0X " 0000000473 "
The 165th step writes 0X " 0000000472 " the 166th step and writes 0X " 0000000471 "
The 167th step writes 0X " 0000000470 ", X " 0000000477 "
The 168th step writes 0X " 0000000476 " the 169th step and writes 0X " 0000000475 "
The 170th step writes 0X " 0000000474 ".
Described normal sensitization drives sequential to refer to that CCD electric charge drives sequential, comprises vertical movement clock, horizontal shift clock, exposure clock and door reset clock.
The invention has the beneficial effects as follows:
1,, compared with other remove the anti-corona method of imageing sensor, the present invention has and removes halation result significantly.Visible referring to accompanying drawing 7,8, do not adopt this method, as shown in Figure 7, digital camera is in the traffic monitoring image fault of shooting at night, and some pictures can not be differentiated.This be because due to night large lamp wiring very strong, the halation producing under the effect of headlight cause image produce light belt, due to two light belts that halation causes, the image in driver's cabin can not be seen clearly.If adopted the present invention, as shown in Figure 8, can most ofly eliminate the halation being caused by headlight, light belt disappears, and the image in driver's cabin is clear.
2, this method is can action row strong, and usage range is wide, and effect is remarkable.
3, need to not increase new technique at production link, implementation method is simple and reliable.
Accompanying drawing explanation
Fig. 1 is hardware configuration of the present invention and operation schematic diagram.
Fig. 2 does not use CCD electric charge time of the present invention to drive sequential schematic diagram.
Fig. 3 uses after the present invention, has increased the dizzy sequential schematic diagram that drives that delusters.
Fig. 4 is that ccd signal processor is signal transducer ICX274.
Fig. 5 is CCD video front chip AD9923 circuit diagram.
Fig. 6 A-Fig. 6 F is field programmable gate array module XC3S1200E circuit diagram.
Fig. 7 does not adopt shooting at night design sketch of the present invention.
Fig. 8 is the shooting at night design sketch adopting after the present invention.
Embodiment
Accompanying drawing has provided specific embodiments of the invention.
Known referring to accompanying drawing.The field programmable logic circuit U 1 that the present invention uses is the field programmable gate array module XC3S1200E of Xilinx company of the U.S..Video front chip U5 is the AD9923 of ANALOG DEVICES company of the U.S., and imageing sensor UC1 is the ICX274 of Japanese Sony Corporation.Therefore, this method is take AD9923 video front chip and ICX274 imageing sensor as hardware foundation.For ICX274CCD signal processor, the control method of electronic shutter is: in photostable time period, each guild produces a SUBCK signal electric charge is imported and overflows ditch, removes subsequently the electric charge that overflows ditch.But, if certain pixel illumination is too high, within the sensitive time of a line, also reaching capacity even overflow the electric charge of ditch, unnecessary electric charge flows into vertical transfer register mostly.Flow into vertical transfer register because there is saturated charge every provisional capital, the same column pixel that the electric charge of inflow is passed by every row vertical movement that is added to, causes high illumination pixel correspondence to show a longitudinal light belt.And write at the serial line interface of CCD video front chip AD9923 dizzy the driving after sequential of delustering, between original driven sensitization sequential, increase the dizzy sequential that drives of delustering, drive CCD front end signal processor in original normal sensitization and drive sequential and newly-increased delustering under the dizzy dual control that drives sequential in original normal sensitization, signal transmission, to ccd signal processor, is then exported ccd image signal.The delustering dizzy sequential that drives is constantly removed electric charge unnecessary in vertical transfer register, electric charge in its vertical transfer register is not reached saturated, even if high illumination pixel can not produce longitudinal light belt yet, guarantees clear picture.The dizzy sequential that drives of delustering of the present invention drives between sequential and increases in two original normal sensitization.Original normal sensitization program comprises that CCD electric charge drives sequential, comprises vertical movement clock, horizontal shift clock, exposure clock and door reset clock.
For producing the dizzy sequential that drives of delustering, this routine programmable gate array module XC3S1200E passes through serial communication interface, CCD video front chip AD9923 serial line interface is write to the familiar hexadecimal data program circuit of those skilled in the art, reach and control halation object.
The hexadecimal data flow process writing is the data that write successively in order following each step:
The 1st step writes 0X " 00020004b7 " the 2nd step and writes 0X " 00000004b6 "
The 3rd step writes 0X " 00000004b5 " the 4th step and writes 0X " 00000204b4 "
The 5th step writes 0X " 00000004ba " the 6th step and writes 0X " 00000004b9 "
The 7th step writes 0X " 00000024b8 " the 8th step and writes 0X " 00000004be "
The 9th step writes 0X " 00008814bd " the 10th step and writes 0X " 01787804bc "
The 11st step writes 0X " 100000047a " the 12nd step and writes 0X " 20d3069479 "
The 13rd step writes 0X " 0f00003478 " the 14th step and writes 0X " 000200147e "
The 15th step writes 0X " 000000047d " the 16th step and writes 0X " 016803347c "
The 17th step writes 0X " 3ffffff483 " the 18th step and writes 0X " 3ffffff481 "
The 19th step writes 0X " 3ffffff480 " the 20th step and writes 0X " 0200034487 "
The 21st step writes 0X " 0e03fff485 " the 22nd step and writes 0X " 0200034484 "
The 23rd step writes 0X " 000000048b " the 24th step and writes 0X " 000000048a "
The 25th step writes 0X " 0000000489 " the 26th step and writes 0X " 0000000488 "
The 27th step writes 0X " 3ffe00048f " the 28th step and writes 0X " 100000048e "
The 29th step writes 0X " 0f0010b48c " the 30th step and writes 0X " 0002001493 "
The 31st step writes 0X " 0000000491 " the 32nd step and writes 0X " 3ffffff497 "
The 33rd step writes 0X " 3ffffff496 " the 34th step and writes 0X " 3ffffff495 "
The 35th step writes 0X " 3ffffff49b " the 36th step and writes 0X " 3ffffff49a "
The 37th step writes 0X " 0e03fff499 " the 38th step and writes 0X " 000000049f "
The 39th step writes 0X " 000000049e " the 40th step and writes 0X " 000000049d "
The 41st step writes 0X " 000000049c " the 42nd step and writes 0X " 3ffe0004a3 "
The 43rd step writes 0X " 20d30694a1 " the 44th step and writes 0X " 0f001034a0 "
The 45th step writes 0X " 00020014a7 " the 46th step and writes 0X " 00000004a5 "
The 47th step writes 0X " 01000014a4 " the 48th step and writes 0X " 3ffffff4ab "
The 49th step writes 0X " 3ffffff4aa " the 50th step and writes 0X " 3ffffff4a9 "
The 51st step writes 0X " 3ffffff4a8 " the 52nd step and writes 0X " 3ffffff4af "
The 53rd step writes 0X " 3ffffff4ae " the 54th step and writes 0X " 0e03fff4ad "
The 55th step writes 0X " 3ffffff4ac " the 56th step and writes 0X " 00000004b3 "
The 57th step writes 0X " 00000004b2 " the 58th step and writes 0X " 00000004b1 "
The 59th step writes 0X " 00000004b0 " the 60th step and writes 0X x " 0000000403 "
The 61st step writes 0X " 0092013402 " the 62nd step and writes 0X " 0000000401 "
The 63rd step writes 0X " 0000000407 " the 64th step and writes 0X " 0000000405 "
The 65th step writes 0X " 000000040b " the 66th step and writes 0X " 00fe02540a "
The 67th step writes 0X " 0000000409 " the 68th step and writes 0X " 000000040f "
The 69th step writes 0X " 009201340e " the 70th step and writes 0X " 000000040d "
The 71st step writes 0X " 0000000413 " the 72nd step and writes 0X " 0000000412 "
The 73rd step writes 0X " 0000000411 " the 74th step and writes 0X " 0000000410 "
The 75th step writes 0X " 0000000417 " the 76th step and writes 0X " 0000000416 "
The 77th step writes 0X " 0000000415 " the 78th step and writes 0X " 0000000414 "
The 79th step writes 0X " 000000041b " the 80th step and writes 0X " 000000041a "
The 81st step writes 0X " 0000000419 " the 82nd step and writes 0X " 0000000418 "
The 83rd step writes 0X " 000000041f " the 84th step and writes 0X " 000000041e "
The 85th step writes 0X " 000000041d " the 86th step and writes 0X " 000000041c "
The 87th step writes 0X " 0000000423 " the 88th step and writes 0X " 0000000422 "
The 89th step writes 0X " 0000000421 " the 90th step and writes 0X " 0000000420 "
The 91st step writes 0X " 0000000427 " the 92nd step and writes 0X " 0000000426 "
The 93rd step writes 0X " 0000000425 " the 94th step and writes 0X " 00fe025424 "
The 95th step writes 0X " 000000042b " the 96th step and writes 0X " 000004442a "
The 97th step writes 0X " 0000000429 " the 98th step and writes 0X " 0000008428 "
The 99th step writes 0X " 000000042f " the 100th step and writes 0X " 000000042e "
The 101st step writes 0X " 000000042d " the 102nd step and writes 0X " 000000042c "
The 103rd step writes 0X " 0000000433 " the 104th step and writes 0X " 0000000432 "
The 105th step writes 0X " 0000000431 " the 106th step and writes 0X " 0000000430 "
The 107th step writes 0X " 0000000437 " the 108th step and writes 0X " 0000044436 "
The 109th step writes 0X " 0000000435 " the 110th step and writes 0X " 0000008434 "
The 111st step writes 0X " 000000043b " the 112nd step and writes 0X " 000000043a "
The 113rd step writes 0X " 0000000439 " the 114th step and writes 0X " 0000000438 "
The 115th step writes 0X " 000000043f " the 116th step and writes 0X " 000000043e "
The 117th writes 0X " 000000043d " the 118th step writes 0X " 000000043c "
The 119th step writes 0X " 0000000443 " the 120th step and writes 0X " 0000000442 "
The 121st step writes 0X " 0000000441 " the 122nd step and writes 0X " 0000000440 "
The 123rd step writes 0X " 0000000447 " the 124th step and writes 0X " 0000000446 "
The 125th step writes 0X " 0000000445 " the 126th step and writes 0X " 0000000444 "
The 127th step writes 0X " 000000044b " the 128th step and writes 0X " 000000044a "
The 129th step writes 0X " 0000000449 " the 130th step and writes 0X " 0000000448 "
The 131st step writes 0X " 000000044f " the 132nd step and writes 0X " 000000044e "
The 133rd step writes 0X " 000000044d " the 134th step and writes 0X " 000000044c "
The 135th step writes 0X " 0000000453 " the 136th step and writes 0X " 0000000451 "
The 137th step writes 0X " 00a2001450 " the 138th step and writes 0X " 0000000457 "
The 139th step writes 0X " 0000000455 " the 140th step and writes 0X " 00c2031454 "
The 141st step writes 0X " 000000045b " the 142nd step and writes 0X " 000000045a "
The 143rd step writes 0X " 0000000459 " the 144th step and writes 0X " 00c2031458 "
The 145th step writes 0X " 000000045f " the 146th step and writes 0X " 000000045e "
The 147th step writes 0X " 000000045d " the 148th step and writes 0X " 0000000463 "
The 149th step writes 0X " 0000000462 " the 150th step and writes 0X " 0000000461 "
The 151st step writes 0X " 0000000460 " the 152nd step and writes 0X " 0000000467 "
The 153rd step writes 0X " 0000000466 " the 154th step and writes 0X " 0000000465 "
The 155th step writes 0X " 0000000464 " the 156th step and writes 0X " 000000046b "
The 157th step writes 0X " 000000046a " the 158th step and writes 0X " 0000000469 "
The 159th step writes 0X " 0000000468 " the 160th step and writes 0X " 000000046f "
The 161st step writes 0X " 000000046e " the 162nd step and writes 0X " 000000046d "
The 163rd step writes 0X " 000000046c " the 164th step and writes 0X " 0000000473 "
The 165th step writes 0X " 0000000472 " the 166th step and writes 0X " 0000000471 "
The 167th step writes 0X " 0000000470 ", X " 0000000477 "
The 168th step writes 0X " 0000000476 " the 169th step and writes 0X " 0000000475 "
The 170th step writes 0X " 0000000474 ".
Claims (2)
1. the method for the anti-halation of imageing sensor, it is characterized in that: hardware is made up of microprocessor or Programmable Logic Device, CCD front end signal processor, ccd image sensor, described CCD front end signal processor is video front chip AD9923, and described ccd image sensor is image sensor IC X274; Microprocessor or Programmable Logic Device are passed through serial communication interface transmitting control data to CCD front end signal processor, CCD front end signal processor is being controlled under the control of data, drive between sequential in the normal sensitization of original two frame, increase the dizzy sequential that drives of delustering, under the control of driven sequential and the dizzy driving sequential of delustering, ccd image sensor is exported the dizzy picture signal of delustering;
Describedly drive and between sequential, increase the delustering dizzy sequential that drives in the normal sensitization of original two frame, it delusters, and dizzy to drive sequential be by the serial communication interface of microprocessor or Programmable Logic Device, video front chip AD9923 write control signal to be produced;
The described dizzy sequential that drives of delustering is produced by the serial communication interface control video front chip AD9923 of microprocessor or Programmable Logic Device, is, by serial communication interface, the serial line interface of AD9923 is write to sixteen bit system data successively by following flow sequence:
2. the method for the anti-halation of imageing sensor as claimed in claim 1, is characterized in that: described original normal sensitization drives sequential to refer to that CCD electric charge drives sequential, comprises vertical movement clock, horizontal shift clock, exposure clock and door reset clock.
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| 数字CCD摄像机抗纵向晕光驱动时序研究;莫思特;《光电子.激光》;20100831;第21卷(第8期);第1146-1150页 * |
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