High Performance Camera Arrays for Light Field Imaging

kartik

Kartik Venkataraman

(Pelican Imaging)


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Date: December 10, 2013

Description:

Light field imaging with Camera arrays have been explored extensively in academia and have been been used to showcase applications such as view point synthesis, synthetic refocus, computing range images, and capturing high speed video among others. However, none of the prior approaches have addressed the modifications needed to achieve the small form factor and image quality required to make them viable for mobile devices and consumer imaging. In our approach, we customize many aspects of the camera array including lenses, pixels, and software algorithms to achieve the imaging performance required for consumer imaging. We analyze the performance of camera arrays and establish scaling laws that allow one to predict the performance of such systems with varying system parameters. A key advantage of this architecture is that it captures depth. The technology is passive, supports both stills and video, and is low light capable. In addition, we explore extending the capabilities of the depth map through regularization to support applications such as fast user-guided matting.

Further Information:

Kartik Venkataraman has over 20 years experience working with technology companies in Silicon Valley. Prior to founding Pelican Imaging, Kartik headed Computational Cameras at Micron Imaging (Aptina). He spearheaded the design of Extended Depth of Field (EDOF) imaging systems for the mobile camera market. As Manager of the Camera & Scene Modeling group, Kartik¹s end-to-end simulation environment for camera system architecture and module simulations has been adopted in parts of the mobile imaging ecosystem. Previously at Intel, Kartik was principally associated with investigating medical imaging and visualization between Johns Hopkins Medical School and the Institute of Systems Science in Singapore. His interests include Image Processing, Computer Graphics and Visualization, Computer Architectures, and Medical Imaging. Venkataraman founded Pelican Imaging in 2008. Venkataraman received his Ph.D. in Computer Science from University of California, Santa Cruz, MS in Computer Engineering from University of Massachusetts, Amherst, and B.Tech (Honors) in Electrical Engineering from the Indian Institute of Technology, Kharagpur.




Created: Wednesday, December 11th, 2013