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

fYear

1996

fDate

10-10 Feb. 1996

Firstpage

94

Lastpage

95

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 1996. Digest of Technical Papers. 42nd ISSCC., 1996 IEEE International

Conference_Location

San Francisco, CA, USA

ISSN

0193-6530

Print_ISBN

0-7803-3136-2

Type

conf

DOI

10.1109/ISSCC.1996.488528

Filename

488528