Invention Grant
- Patent Title: Guided tone mapping of high dynamic range video based on a Bezier curve for presentation on a display device
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Application No.: US16504025Application Date: 2019-07-05
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Publication No.: US10863157B2Publication Date: 2020-12-08
- Inventor: Yeong-Taeg Kim , Li Tao , Pradeep Nagesh , Chenguang Liu
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Sherman IP LLP
- Agent Kenneth L. Sherman; Hemavathy Perumal
- Main IPC: H04N9/68
- IPC: H04N9/68 ; G06T5/00 ; H04N9/797 ; H04N9/77

Abstract:
A method comprising receiving an input video signal comprising high dynamic range (HDR) video for presentation on a display device, and receiving metadata for the input video signal. The metadata comprises a first Bezier curve for tone mapping of the HDR video that fits a first peak luminance level. The method further comprises adjusting the first Bezier curve to a second Bezier curve for tone mapping of the HDR video that fits a second peak luminance level. The display device has the second peak luminance level, and the second peak luminance level is different from the first peak luminance level. The method further comprises producing a tone mapped video signal of the input video signal utilizing the second Bezier curve. The tone mapped video signal is provided to the display device for presentation.
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