Invention Grant
US09544560B2 Dynamic range converter with generic architecture and methods for use therewith
有权
具有通用架构的动态范围转换器及其使用方法
- Patent Title: Dynamic range converter with generic architecture and methods for use therewith
- Patent Title (中): 具有通用架构的动态范围转换器及其使用方法
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Application No.: US14863065Application Date: 2015-09-23
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Publication No.: US09544560B2Publication Date: 2017-01-10
- Inventor: Bradley Arthur Wallace , Xiaowen Wu , Jie Feng , Xinghai Li
- Applicant: ViXS Systems, Inc.
- Applicant Address: CA Toronto
- Assignee: ViXS Systems, Inc.
- Current Assignee: ViXS Systems, Inc.
- Current Assignee Address: CA Toronto
- Agency: Garlick & Markison
- Agent Bruce E. Stuckman
- Main IPC: H04N9/64
- IPC: H04N9/64 ; G06T5/00

Abstract:
In various embodiments, a dynamic range converter includes a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.
Public/Granted literature
- US20160205367A1 DYNAMIC RANGE CONVERTER WITH GENERIC ARCHITECTURE AND METHODS FOR USE THEREWITH Public/Granted day:2016-07-14
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