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:
Feb. 08, 2011
Filed:
May. 22, 2006
Xi Wang, Beijing, CN;
Peter-pike J. Sloan, Bellevue, WA (US);
Li-yi Wei, Redwood City, CA (US);
Xin Tong, Beijing, CN;
Baining Guo, Beijing, CN;
Xi Wang, Beijing, CN;
Peter-Pike J. Sloan, Bellevue, WA (US);
Li-Yi Wei, Redwood City, CA (US);
Xin Tong, Beijing, CN;
Baining Guo, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
Encoded HDR textures are described. In one aspect, a HDR image comprised is preprocessed such that HDR information is represented in a single color channel. The preprocessed image is quantized in view of two luminance ranges to retain HDR in the single color channel. Each block of quantized channel information is then encoded across two textures (encoded HDR textures). Specifically, when encoding a block of the quantized information, pixels in a first range of the two luminance ranges are put into a color channel associated with a first texture. Additionally, pixels in a second range of the two luminance ranges are stored into a color channel associated with a second texture.