The light field is a 4D function that describes the flow of light in all directions through every point in free space. Digital cameras only capture a 2D projection of the 4D light field entering the camera lens. In this dissertation I modify the light field as it enters a camera, or leaves a projector, to enhance the information content of the captured or projected image. The captured image is a 2D projection of the modified light field and contains information otherwise lost in a traditional camera. In particular, I use grayscale masks placed in simple optical setups to (a) increase the spatial resolution of a captured photo, (b) arbitrarily control the wavelength spectrum of a captured or projected image, and (c) capture one-shot multi-spectral photos.

Last modified

• 09/18/2018

Creator

• Ankit Mohan

DOI

• https://doi.org/10.21985/N2GX6F

Subject

• Computer Science

Keyword

• light fields
• agile spectrum
• super-resolution
• multispectral

Date created

• 2008-11-08

Resource type

• Dissertation

Rights statement

• In Copyright