Low-Contrast Video Image Sensor — Performance and Considerations

SMPTE Journal ◽  
1980 ◽  
Vol 89 (10) ◽  
pp. 717-720 ◽  
Author(s):  
Wayne W. Frame
1985 ◽  
Vol 49 ◽  
Author(s):  
K. Kempter ◽  
H. Wieczrek ◽  
M. Hoheisel

AbstractThe short response times required for image sensors demand blocking contacts at the sensor cell. It was found that the junctions between transparent electrodes (ITO or a thin palladium film) and the metallic back electrode with a-Si:H form blocking contacts yielding photocurrent decay times of the order of some microseconds. The two different time regimes observed for the decay are interpreted as being limited by the drift and the release of holes respectively.


2020 ◽  
Vol 49 (5) ◽  
pp. 20190555
Author(s):  
冯婕 Jie Feng ◽  
李豫东 Yudong Li ◽  
文林 Lin Wen ◽  
郭旗 Qi Guo

2002 ◽  
Author(s):  
Wenxuan Zhang ◽  
Yuxia Wang ◽  
Hong Fan

2020 ◽  
Vol 2020 (7) ◽  
pp. 213-1-213-7
Author(s):  
Nabeel. A. Riza ◽  
Nazim Ashraf

Proposed for the first time is a novel calibration empowered minimalistic multi-exposure image processing technique using measured sensor pixel voltage output and exposure time factor limits for robust camera linear dynamic range extension. The technique exploits the best linear response region of an overall nonlinear response image sensor to robustly recover via minimal count multi-exposure image fusion, the true and precise scaled High Dynamic Range (HDR) irradiance map. CMOS sensor-based experiments using a measured Low Dynamic Range (LDR) 44 dB linear region for the technique with a minimum of 2 multi-exposure images provides robust recovery of 78 dB HDR low contrast highly calibrated test targets.


2012 ◽  
Vol 461 ◽  
pp. 707-711
Author(s):  
Qing Hui Wang ◽  
Hua Ping Xue

This Article design a video image acquisition system implementations which is based on ADI Corporation Blackfin561 DSP , using OV7660 CMOS image sensor for the video input source and advanced JPEG2000 image compression algorithm under the operate system of the uClinux. It achieves a video image acquisition, processing and transmission. Test results show that the PC side you can see clearer images.


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