USER INTERFACE AND GRAPHICS COMPOSITION WITH HIGH DYNAMIC RANGE VIDEO
First Claim
1. A computer-implemented compositing method, comprising:
- receiving, by a processor, first data having a first dynamic range;
receiving, by the processor, second data having a second dynamic range that is lower than the first dynamic range;
converting, by the processor, the first data to a third dynamic range having a transfer function (TF) that matches at least a segment of an TF of the second dynamic range;
assembling, by the processor, a video frame from the converted first data and the second data, andrendering, by the processor, an output frame based on the assembled video frame.
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Abstract
A method and system for adaptively mixing video components with graphics/UI components, where the video components and graphics/UI components may be of different types, e.g., different dynamic ranges (such as HDR, SDR) and/or color gamut (such as WCG). The mixing may result in a frame optimized for a display device'"'"'s color space, ambient conditions, viewing distance and angle, etc., while accounting for characteristics of the received data. The methods include receiving video and graphics/UI elements, converting the video to HDR and/or WCG, performing statistical analysis of received data and any additional applicable rendering information, and assembling a video frame with the received components based on the statistical analysis. The assembled video frame may be matched to a color space and displayed. The video data and graphics/UI data may have or be adjusted to have the same white point and/or primaries.
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Citations
25 Claims
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1. A computer-implemented compositing method, comprising:
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receiving, by a processor, first data having a first dynamic range; receiving, by the processor, second data having a second dynamic range that is lower than the first dynamic range; converting, by the processor, the first data to a third dynamic range having a transfer function (TF) that matches at least a segment of an TF of the second dynamic range; assembling, by the processor, a video frame from the converted first data and the second data, and rendering, by the processor, an output frame based on the assembled video frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A video compositor, comprising:
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a first analyzer to perform statistical analysis on a first video sequence representing natural video content; a second analyzer to perform statistical analysis on a second video sequence representing synthetic video content; a controller, responsive to data representing output conditions, configured to; convert one of the video sequences from an original dynamic range domain to a converted domain having a transfer function (TF) curve that matches a shape of an TF curve of the other video sequence; blend the converted video sequence with the non-converted video sequence; and adjust at least a color component of the synthetic video component to match the native video component. - View Dependent Claims (13, 14, 15, 16)
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17. A video composition pipeline for processing a pair of video sequences, one having a higher dynamic range than the other, comprising:
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a first data converter configured to convert the video sequence having the higher dynamic range to a color space different from its original color space; and a composition unit configured to; convert the first component to a third dynamic range, the third dynamic range being higher than the second dynamic range; assemble a video frame based on the converted first component and the second component, wherein transfer functions (TFs) of the converted first component and the second component are of complementary shapes; and render an output frame based on the assembled video frame. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification