Title :
A 200 mW 3.3 V CMOS color camera IC producing 352/spl times/288 24 b video at 30 frames/s
Author :
Loinaz, M. ; Singh, K. ; Blanksby, A. ; Inglis, D. ; Azadet, K. ; Ackland, B.
Author_Institution :
Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA
Abstract :
Recent advances in CMOS imaging technology enable the creation of single-chip digital cameras that offer system designers fully-digital interfaces, reduced part counts, and low-power dissipation. A PC-based camera system is described using a single-chip camera. The chip produces digital video data that is fed to the host over a standard interface. The host adjusts operation of the camera by setting frame rate, exposure time, analog gains, and color processing coefficients. Frame-rate functions, such as exposure control and white balance algorithms, are in software on the host, while pixel-rate tasks requiring intensive computation, such as color interpolation, color correction, and calculation of image statistics are in hardware on the camera chip.
Keywords :
image sensors; 200 mW; 24 bit; 3.3 V; CMOS imaging technology; analog gains; color camera IC; color correction; color interpolation; color processing coefficients; digital video data; exposure control; exposure time; frame-rate functions; fully-digital interfaces; image statistics; pixel-rate tasks; power dissipation; standard interface; white balance algorithms; CMOS image sensors; CMOS integrated circuits; CMOS technology; Color; Digital cameras; Hardware; Interpolation; Pixel; Software algorithms; Statistics;
Conference_Titel :
Solid-State Circuits Conference, 1998. Digest of Technical Papers. 1998 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-4344-1
DOI :
10.1109/ISSCC.1998.672419