High-dynamic-range video for photometric measurement of illumination

Jonas Unger; Stefan Gustavson

doi:10.1117/12.703050

21 February 2007 High-dynamic-range video for photometric measurement of illumination

Jonas Unger, Stefan Gustavson

Proceedings Volume 6501, Sensors, Cameras, and Systems for Scientific/Industrial Applications VIII; 65010E (2007) https://doi.org/10.1117/12.703050
Event: Electronic Imaging 2007, 2007, San Jose, CA, United States

Abstract

We describe the design and implementation of a high dynamic range (HDR) imaging system capable of capturing RGB color images with a dynamic range of 10,000,000 : 1 at 25 frames per second. We use a highly programmable camera unit with high throughput A/D conversion, data processing and data output. HDR acquisition is performed by multiple exposures in a continuous rolling shutter progression over the sensor. All the different exposures for one particular row of pixels are acquired head to tail within the frame time, which means that the time disparity between exposures is minimal, the entire frame time can be used for light integration and the longest exposure is almost the entire frame time. The system is highly configurable, and trade-offs are possible between dynamic range, precision, number of exposures, image resolution and frame rate.

Citation Download Citation

Jonas Unger and Stefan Gustavson "High-dynamic-range video for photometric measurement of illumination", Proc. SPIE 6501, Sensors, Cameras, and Systems for Scientific/Industrial Applications VIII, 65010E (21 February 2007); https://doi.org/10.1117/12.703050

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