SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
A Theory of Multiplexed Illumination
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
Split Aperture Imaging for High Dynamic Range
International Journal of Computer Vision - Special Issue on Computer Vision Research at the Beckman Institute of Advanced Science and Technology
Programmable Imaging: Towards a Flexible Camera
International Journal of Computer Vision
Coded exposure photography: motion deblurring using fluttered shutter
ACM SIGGRAPH 2006 Papers
Lensless Imaging with a Controllable Aperture
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 1
ACM SIGGRAPH 2007 papers
Image and depth from a conventional camera with a coded aperture
ACM SIGGRAPH 2007 papers
Programmable aperture photography: multiplexed light field acquisition
ACM SIGGRAPH 2008 papers
Extracting depth and matte using a color-filtered aperture
ACM SIGGRAPH Asia 2008 papers
Flexible Depth of Field Photography
ECCV '08 Proceedings of the 10th European Conference on Computer Vision: Part IV
Adaptive coded aperture photography
ISVC'11 Proceedings of the 7th international conference on Advances in visual computing - Volume Part I
Half-sweep imaging for depth from defocus
PSIVT'11 Proceedings of the 5th Pacific Rim conference on Advances in Image and Video Technology - Volume Part I
Coding Depth through Mask Structure
Computer Graphics Forum
Motion-Invariant coding using a programmable aperture camera
ACCV'12 Proceedings of the 11th Asian conference on Computer Vision - Volume Part IV
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Since 1960s, aperture patterns have been studied extensively and a variety of coded apertures have been proposed for various applications, including extended depth of field, defocus deblurring, depth from defocus, light field acquisition, etc. Researches have shown that optimal aperture patterns can be quite different due to different applications, imaging conditions, or scene contents. In addition, many coded aperture techniques require aperture patterns to be temporally changed during capturing. As a result, it is often necessary to have a programmable aperture camera whose aperture pattern can be dynamically changed as needed in order to capture more useful information. In this paper, we propose a programmable aperture camera using a Liquid Crystal on Silicon (LCoS) device. This design affords a high brightness contrast and high resolution aperture with a relatively low light loss, and enables one change the pattern at a reasonably high frame rate. We build a prototype camera and evaluate its features and drawbacks comprehensively by experiments. We also demonstrate two coded aperture applications in light field acquisition and defocus deblurring.