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Design On WiFi Wireless Transmission System Based On A BIT-retina52 CMOS Sensor

Posted on:2019-03-27Degree:MasterType:Thesis
Country:ChinaCandidate:Z Y MaFull Text:PDF
GTID:2480306470495424Subject:Optical Engineering
Abstract/Summary:PDF Full Text Request
In the field of image de-rotation,the traditional de-rotation method is through software or hardware post-processing.After obtaining the camera rotation angle,the original position of the pixel is obtained through the image rotation algorithm,and the corresponding assignment operation is performed on the position.To achieve the purpose of racemization.However,in the process of image restoration,the position coordinates of the obtained pixels are often not integer values,so a large number of pixel interpolation operations are required,the complexity of the algorithm is increased,the amount of calculation is huge,and the difficulty in hardware implementation is great,if the calculation speed Slow,extremely easy to cut off the picture,so poor real-time.However,the layout of pixels in the simulated retina-distribution CMOS detector is fundamentally different from that of traditional matrix detectors.The shape of the detector is circular,and the pixels are in a centrally symmetrical annular distribution.The rotation from the inside to the outside of the readout method is beneficial to the elimination of the image.However,the data transmission method of Retina52 CMOS detector in the current domestic retina-like retina distribution CMOS detector is wired transmission,and the image data is transmitted to the PC end via the cameralink transmission line,but the transmission line winding will occur after the detector rotates several rotations.The situation is not conducive to the efficient and continuous operation of dynamic racemization experiments.Therefore,this dissertation studies the image wireless transmission system based on Retina52 CMOS detector.This paper mainly focuses on the first domestic retina-like CMOS detector which has been successfully developed,analyzes its pixel readout mode and its output image characteristics,and constructs a Wi Fi wireless transmission system of Retina-52 CMOS detector image.By referring to related literature,it constructs data transmission.System framework and transmission methods,drawing schematics and corresponding PCB diagrams.Debugging of the system through hardware,software,and debugging methods of hardware and software joint debugging,simulation with Model Sim software,verifying the timing of the image data transmission,the correctness of the data,and leaving a network chip on the board for the purpose of future In the process of use,instead of the cameralink transmission line,the transmission complexity can be reduced while ensuring sufficient transmission rate.Finally,the wireless wireless transmission experiment of the BIT-retina52 CMOS detector is performed,which lays an experimental foundation for the future dynamic racemization experiment.
Keywords/Search Tags:Retina-like CMOS, Image rotation-elimination, Wireless transmission, WiFi
PDF Full Text Request
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