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:
Jun. 25, 2024
Filed:
Nov. 29, 2021
Amazon Technologies, Inc., Seattle, WA (US);
Charles Benjamin Waggoner, Portland, OR (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Techniques for applying a perceptual quantizer (PQ) electro-optical transfer function to optimize dithering and adaptive quantization for non-perceptual quantizer (e.g., SDR) color spaces are described. According to some embodiments, a computer-implemented method includes receiving a request to encode a video comprising a frame having pixels with non-perceptual quantizer code values of luminance at a content delivery service, determining, by the content delivery service, perceptual quantizer code values for the frame based at least in part on the non-perceptual quantizer code values, determining, by the content delivery service, one or more encoding parameters based at least in part on the perceptual quantizer code values, encoding, by the content delivery service, the frame based at least in part on the one or more encoding parameters into an encoded frame, and transmitting the encoded frame from the content delivery service to a viewer device.