Invention Grant
- Patent Title: Display mapping for high dynamic range images on power-limiting displays
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Application No.: US17276752Application Date: 2019-09-17
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Publication No.: US11361699B2Publication Date: 2022-06-14
- Inventor: Jaclyn Anne Pytlarz
- Applicant: DOLBY LABORATORIES LICENSING CORPORATION
- Applicant Address: US CA San Francisco
- Assignee: DOLBY LABORATORIES LICENSING CORPORATION
- Current Assignee: DOLBY LABORATORIES LICENSING CORPORATION
- Current Assignee Address: US CA San Francisco
- Priority: EP18194858 20180917
- International Application: PCT/US2019/051419 WO 20190917
- International Announcement: WO2020/060980 WO 20200326
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G06T5/00 ; G09G5/00 ; G09G3/34 ; H04N1/60 ; H04N19/98 ; H04N9/64 ; H04N5/57

Abstract:
Methods and systems for mapping images from a first dynamic range to a second dynamic on a target display with power limitations are described. Given: an input image in a first dynamic range, input metadata (Smin, Smid, Smax), power-independent luminance characteristics of a target display (Tmin, reference Tmax), and an APL function of the target display, wherein the APL function determines output luminance in the target display as a function of average picture level (APL) input in the target display, a processor generates an adaptive output of the maximum luminance level for the target display (Tmax) so that when mapping the image from the first dynamic range to the second dynamic range, the anchor points of the tone-mapping function are adjusted according to the APL function of the target display.
Information query