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On wide dynamic range logarithmic CMOS image sensors

Abstract:

Logarithmic sensors are capable of capturing the wide dynamic range of intensities available in nature with minimum number of bits and post-processing required. A simple circuit able to perform logarithmic capture is one utilising a MOS device in weak inversion. However, the output of this pixel is crippled due to fixed pattern noise. Technique proposed to reduce this noise fail to produce high quality images on account of unaccounted high gain variations in the pixel. An electronic calibr...

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Institution:
University of Oxford
Research group:
Microelectronics Circuits and Analogue Devices
Oxford college:
Hertford College
Department:
Mathematical,Physical & Life Sciences Division - Engineering Science

Contributors

Role:
Supervisor
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Funding agency for:
Bhaskar Choubey
Publication date:
2006
Type of award:
DPhil
Level of award:
Doctoral
Awarding institution:
Oxford University, UK
URN:
uuid:f2d8ea6d-6b71-45bf-80dc-7dadb1421e3b
Local pid:
ora:8414

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