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High Dynamic Range Video for Photometric Measurement of Illumination

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 expo- sure 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.

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:liu-40069
Date January 2007
CreatorsUnger, Jonas, Gustavson, Stefan, Ynnerman, Anders
PublisherLinköpings universitet, Visuell informationsteknologi och applikationer, Linköpings universitet, Tekniska högskolan, Linköpings universitet, Visuell informationsteknologi och applikationer, Linköpings universitet, Tekniska högskolan, Linköpings universitet, Visuell informationsteknologi och applikationer, Linköpings universitet, Tekniska högskolan, IS&T/SPIE : IS&T/SPIE
Source SetsDiVA Archive at Upsalla University
LanguageEnglish
Detected LanguageEnglish
TypeConference paper, info:eu-repo/semantics/conferenceObject, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess
RelationIST/SPIE 19th Inernational Symposium on Electronic Imaging: Sensors, Cameras and Systems for Scientific/Industrial Applications,2007, p. E-

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