Title
Increasing Camera Dynamic Range Through In-Sensor Multi-Exposure White Balancing
Abstract
In typical image sensors the spectral sensitivity of color channels is fixed. The illumination spectrum in natural scenes can vary to a great extent. This leads to an unbalanced response in color channels and hence a reduction in dynamic range. We propose a new method to adjust the relative sensitivity of color channels based on multi-exposure frame combination. Instead of a single long exposure we capture a different number of gap-less exposures in each color channel and combine them. This offers a digital option for reducing sensitivity for some color channels and aligns the color channels. The method preserves motion blur and can be used in any long exposure or moving picture photography. We can now get a higher dynamic range from a camera system under any unfavorable illumination conditions with very little effort.
Year
DOI
Venue
2011
10.1109/ICIP.2011.6116340
2011 18TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP)
Keywords
Field
DocType
white balance, dynamic range, image sensor
Computer vision,Dynamic range,Computer graphics (images),Image sensor,Spectral sensitivity,Computer science,Motion blur,Color balance,Photography,Artificial intelligence,Gapless playback,Channel (digital image)
Conference
ISSN
Citations 
PageRank 
1522-4880
0
0.34
References 
Authors
4
4
Name
Order
Citations
PageRank
Michael Schöberl1407.46
Wolfgang Schnurrer2214.48
Siegfried Fößel3234.15
André Kaup4861127.24