Title :
A novel image sensor for video compression
Author :
Aizawa, K. ; Ohno, H. ; Hamamoto, T. ; Hatori, M. ; Yamazaki, J.
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ., Japan
Abstract :
A novel image sensor on which video signals can be compressed is proposed. Since the video signal is compressed on an imager plane by using fast analog processing, the amount of image data read out from the imager can be significantly reduced with very small latency. The proposed system can be potentially applied to high pixel rate cameras such as those for high speed imaging and high resolution imaging. Conditional replenishment is employed for the video compression algorithm. Analog circuits are designed both for processing in each pixel and for controlling the entire data rate. The behavior of the circuit is investigated on the basis of both an analog circuit simulator and a scale-up-circuit. A VLSI chip is designed and is under fabrication
Keywords :
CMOS analogue integrated circuits; VLSI; analogue processing circuits; application specific integrated circuits; data compression; image processing equipment; image sensors; video cameras; video coding; 1024 pixel; 2 micron; 32 pixel; VLSI chip; analog circuit simulator; analog circuits; conditional replenishment; data rate; fast analog processing; high pixel rate cameras; high resolution imaging; high speed imaging; image data; image sensor; imager plane; scale-up-circuit; video compression; video signals; Analog circuits; Cameras; Delay; High-resolution imaging; Image coding; Image sensors; Pixel; Process design; Signal processing; Video compression;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413737
