A novel adaptive logarithmic digital pixel sensor

Amine Bermak; Alistair Kitchen

doi:10.1109/LPT.2006.883893

A novel adaptive logarithmic digital pixel sensor

Amine Bermak^*, Alistair Kitchen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

A major problem associated with complementary metal-oxide-semiconductor and charge couple device imagers is their limited dynamic range (DR), typically 60-70 dB. This falls far short of covering the wide illumination ranges found in natural scenes (typically 120-140 dB). Biological retinas are known to feature adaptive, logarithmic-type responses enabling them to cover a very wide DR, without compromising the resolution. This letter presents a novel way to realize such an adaptive logarithmic response by combining a digital time domain vision sensor and a simple adaptive digital quantizer. This letter presents the theory and experimental results for an adaptive logarithmic response sensor featuring over 100-dB DR.

Original language	English
Pages (from-to)	2147-2149
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	18
Issue number	20
DOIs	https://doi.org/10.1109/LPT.2006.883893
Publication status	Published - 15 Oct 2006
Externally published	Yes

Keywords

Adaptive logarithmic pixel
Complementary metal-oxide-semiconductor (CMOS) image sensors
Digital pixel sensor (DPS)

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10.1109/LPT.2006.883893

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A novel adaptive logarithmic digital pixel sensor

Abstract

Keywords

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