Title :
Research on video anti-blooming
Author :
Wang, Jian ; Yang, Zhe ; Guo, Quanmin
Author_Institution :
Sch. of Electron. Inf. Eng., Xi´´an Technol. Univ., Xi´´an, China
Abstract :
Two channels video signal of the same scenery can be obtained by two CCD synchronous video cameras whose integration times are different: one is longer than another. The CCD video camera with short integration time is used for obtaining bright image information while the one with long integration time is used for obtaining gray image information. The image processing method is to adopt DSP combining the subsection linear weight. Then all the processed image information will be input into a video encoder and come to one channel video image with wild dynamic range. The effect of this way is equate to the dynamic range of CCD image sensor was expanded from 80dB to 106dB and finally come to the purpose of video antiblooming.
Keywords :
CCD image sensors; video signal processing; CCD image sensor; CCD synchronous video camera; DSP; gray image information; image processing; subsection linear weight; two channels video signal; video antiblooming; CCD image sensors; Cameras; Charge coupled devices; Digital signal processing; Dynamic range; Flip-flops; Pixel; anti-blooming; dynamic; integration time; video image;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5647088
