Title :
B/W adaptive image grabber with analog motion vector estimator at 0.3 GOPS
Author :
Tomasini, A. ; Brattoli, M. ; Chioffi, E. ; Colli, G. ; Gerna, D. ; Pasotti, M.
Author_Institution :
SGS-Thomson Microelectron., Agrate Brianza, Italy
Abstract :
The chip contains a B/W CMOS adaptive video-camera providing quarter common interface format (176/spl times/144 pels), two analog memories, a motion estimator (ME), and a small controller to synchronize computational phases. A modified scheme uses the two analog memories to compare consecutive frames. Good speed and power performance is obtained with only 0.5 dB loss in S/N ratio. A H261-compatible bit stream can be produced to interface with H261 decoders.
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; image sensors; motion estimation; B/W adaptive image grabber; CMOS chip; H261-compatible bit stream; analog memories; analog motion vector estimator; quarter common interface format; video camera; Adaptive control; Analog computers; Analog memory; Computer interfaces; Decoding; Motion control; Motion estimation; Performance loss; Phase estimation; Programmable control;
Conference_Titel :
Solid-State Circuits Conference, 1996. Digest of Technical Papers. 42nd ISSCC., 1996 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3136-2
DOI :
10.1109/ISSCC.1996.488528
