Methods and systems for inter-layer image prediction parameter determination
First Claim
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1. A method for predicting a high dynamic range image element, said method comprising:
- receiving, in a video coder, a plurality of low dynamic range (LDR) image data;
generating, in said video coder, a first predicted high dynamic range (HDR) prediction parameter value based on said plurality of LDR image data;
extracting, in said video coder, an LDR image value from said plurality of LDR image data; and
forming, in said video coder, an HDR image element prediction using said first predicted HDR prediction parameter value and said LDR image value.
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Abstract
Aspects of the present invention are related to systems and methods for predicting a prediction parameter which may be used in the prediction of high dynamic range image elements from low dynamic range image data.
36 Citations
21 Claims
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1. A method for predicting a high dynamic range image element, said method comprising:
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receiving, in a video coder, a plurality of low dynamic range (LDR) image data; generating, in said video coder, a first predicted high dynamic range (HDR) prediction parameter value based on said plurality of LDR image data; extracting, in said video coder, an LDR image value from said plurality of LDR image data; and forming, in said video coder, an HDR image element prediction using said first predicted HDR prediction parameter value and said LDR image value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for predicting a high dynamic range image element, said method comprising:
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receiving, in a video coder, a low dynamic range (LDR) image data corresponding to a first image frame; receiving, in said video coder, a first correspondence indicator relating said LDR image data to a first previous-image-frame first high dynamic range (HDR) prediction parameter value; generating, in said video coder, a first predicted HDR prediction parameter value based on said first correspondence indicator; extracting, in said video coder, an LDR image value from said LDR image data; and forming, in said video coder, an HDR image element prediction using said first predicted HDR prediction parameter value and said LDR image value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification