Depth-of-Field and Coded Aperture Imaging on XSlit Lens
published: Oct. 29, 2014, recorded: September 2014, views: 117
Report a problem or upload filesIf you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Recent coded aperture imaging systems have shown great success in scene reconstruction, extended depth-of-field and light field imaging. By far nearly all solutions are built on top of commodity cameras equipped with a single spherical lens. In this paper, we explore coded aperture solutions on a special non-centric lens called the crossed-slit (XSlit) lens. An XSlit lens uses a relay of two orthogonal cylindrical lenses, each coupled with a slit-shaped aperture. Through ray geometry analysis, we first show that the XSlit lens produces a different and potentially advantageous depth-of-field than the regular spherical lens. We then present a coded aperture strategy that individually encodes each slit aperture, one with broadband code and the other with high depth discrepancy code, for scene recovery. Synthetic and real experiments validate our theory and demonstrate the advantages of XSlit coded aperture solutions over the spherical lens ones.
Link this pageWould you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !