All CMOS foveal image sensor chip

Shu Xia, Ramalingam Sridhar, Peter Scott, Cesar Bandera

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


A foveal image sensor chip that uses standard CMOS process is presented. A new photo charge normalization scheme and its associated circuitry for use with active pixel sensors has been developed. The pixels are assembled into a multi-resolution rectilinear foveal image sensor chip using a novel access scheme to reduce the number of analog RAM cells needed. Localized spatial resolution declines monotonically with offset from the imager's optical axis, analogous to biological foveal vision. A proof-of-concept chip has been fabricated and tested.

Original languageEnglish (US)
Pages (from-to)409-413
Number of pages5
JournalProceedings of the Annual IEEE International ASIC Conference and Exhibit
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 11th Annual IEEE International ASIC Conference - Rochester, NY, USA
Duration: Sep 13 1998Sep 16 1998

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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