Recovering high dynamic range radiance maps from photographs
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Radiometric CCD camera calibration and noise estimation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Depth Measurement by the Multi-Focus Camera
CVPR '98 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
Optical Splitting Trees for High-Precision Monocular Imaging
IEEE Computer Graphics and Applications
ACM SIGGRAPH 2007 papers
Painting in High Dynamic Range
Journal of Visual Communication and Image Representation
Auto Exposure Control for Multiple-Slope Cameras
ICIAR '08 Proceedings of the 5th international conference on Image Analysis and Recognition
Programmable aperture camera using LCoS
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part VI
A versatile HDR video production system
ACM SIGGRAPH 2011 papers
Computational plenoptic imaging
ACM SIGGRAPH 2012 Courses
State of the Art Report on Video-Based Graphics and Video Visualization
Computer Graphics Forum
Algorithms for a real-time HDR video system
Pattern Recognition Letters
On Plenoptic Multiplexing and Reconstruction
International Journal of Computer Vision
A unified framework for multi-sensor HDR video reconstruction
Image Communication
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Most imaging sensors have limited dynamic range and hence are sensitive to only a part of the illumination range present in a natural scene. The dynamic range can be improved by acquiring multiple images of the same scene under different exposure settings and then combining them. In this paper, we describe a camera design for simultaneously acquiring multiple images. The cross-section of the incoming beam from a scene point is partitioned into as many parts as the required number of images. This is done by splitting the aperture into multiple parts and directing the beam exiting from each in a different direction using an assembly of mirrors. A sensor is placed in the path of each beam and exposure of each sensor is controlled either by appropriately setting its exposure parameter, or by splitting the incoming beam unevenly. The resulting multiple exposure images are used to construct a high dynamic range image. We have implemented a video-rate camera based on this design and the results obtained are presented.