The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2016
Filed:
Aug. 26, 2015
Douglas Lanman, Bellevue, WA (US);
Matthew Hirsch, Somerville, MA (US);
Yun Hee Kim, Seoul, KR;
Szymon Jakubczak, San Francisco, CA (US);
Ramesh Raskar, Cambridge, MA (US);
Douglas Lanman, Bellevue, WA (US);
Matthew Hirsch, Somerville, MA (US);
Yun Hee Kim, Seoul, KR;
Szymon Jakubczak, San Francisco, CA (US);
Ramesh Raskar, Cambridge, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
In exemplary implementations of this invention, two LCD screens display a multi-view 3D image that has both horizontal and vertical parallax, and that does not require a viewer to wear any special glasses. Each pixel in the LCDs can take on any value: the pixel can be opaque, transparent, or any shade between. For regions of the image that are adjacent to a step function (e.g., a depth discontinuity) and not adjacent to a sharp corner, the screens display local parallax barriers comprising many small slits. The barriers and the slits tend to be oriented perpendicular to the local angular gradient of the target light field. In some implementations, the display is optimized to seek to minimize the Euclidian distance between the desired light field and the actual light field that is produced. Weighted, non-negative matrix factorization (NMF) is used for this optimization.