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:
Jan. 16, 2024
Filed:
Nov. 15, 2019
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Gregory John Ward, Berkeley, CA (US);
DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US);
Abstract
An image sensor includes a plurality of pixels, each pixel belonging to one of N subframes each characterized by (a) a same exposure-time sequence that includes a short exposure-time alternating with a long exposure-time, and (b) a respective temporal offset equal to a multiple of the short exposure-time. A method for encoding a video stream captured by the image sensor includes (i) for each subframe, linearly combining a long-exposure image, captured at the long exposure-time, and a short-exposure image, captured at the short exposure-time, to yield a residual image, (ii) combining at least some of the long-exposure images from the N subframes to yield a full-frame image having a higher resolution than any long-exposure image, (iii) encoding the full-frame image into a base layer of the video stream, and (iv) encoding at least some of the residual images from the N subframes into an enhancement layer of the video stream.