A 200x100 Array Of Electronically Calibratable Logarithmic CMOS Pixels Bhaskar Choubey Satoshi Ayoma Dileepan Joseph Stephen Otim Steve Collins University of Oxford, Oxford Satoshi Ayoma is currently with Renesses Technology Corp, Japan Dileepan Joseph is currently with University of Alberta, Edmonton, Canada
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A 200x100 Array Of Electronically Calibratable Logarithmic CMOS Pixels
A 200x100 Array Of Electronically Calibratable Logarithmic CMOS Pixels. Bhaskar Choubey Satoshi Ayoma Dileepan Joseph Stephen Otim Steve Collins University of Oxford, Oxford Satoshi Ayoma is currently with Renesses Technology Corp, Japan - PowerPoint PPT Presentation
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A 200x100 Array Of Electronically Calibratable Logarithmic CMOS Pixels
Bhaskar ChoubeySatoshi Ayoma
Dileepan JosephStephen OtimSteve Collins
University of Oxford, OxfordSatoshi Ayoma is currently with Renesses Technology Corp, Japan
Dileepan Joseph is currently with University of Alberta, Edmonton, Canada
Introduction
• Need for High Dynamic Range Imaging
• Linear Pixel– CCD– CMOS Active Pixel Sensor
• Techniques to improve dynamic range lead to– Low Fill Factor– Complex In-pixel Circuits– Large Number of Bits
Logarithmic Pixels
– Can capture Wide Dynamic Range
– Encode Contrast Information
– Similar Fill Factor as that of APS
– Randomly Addressable– Device Variations
Cause Fixed Pattern Noise
Ways to Reduce FPN
• On-chip Methods• Electron Injection (Ricquer and coworkers)