Coding and Modulation in Cameras: Computational Photography beyond Photo Manipulations

Computational photography is an emerging field combining smart optics, electronics, computer vision and graphics. Recent trends in enhancing the capabilities of a camera involve combining multiple photos taken with different camera parameters. In this talk, first I will describe gradient domain algorithms to combine photos taken with and without a flash for recovering high dynamic range images, removing glass reflections, shadows and flash hotspots. Then, I will discuss techniques of coding and modulation in cameras that go beyond such photo manipulations. I will describe several new camera designs including (a) gradient camera for high dynamic range imaging, (b) coded exposure camera for motion deblurring, (c) coded aperture for extending depth of field and (d) mask-enhanced cameras for capturing lightfields using optical modulation.

• Authors: Amit Agrawal
• Keywords: Coded Aperture, Coded Exposure, Computational Photography, Light Fields, Masks, Optical Modulation