US Patent 10915986 Adaptive perturbed cube map projection
Patent 10915986 was granted and assigned to Qualcomm on February, 2021 by the United States Patent and Trademark Office.
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Methods and systems for processing video data are provided. In one example, a first video bitstream can be obtained, which can include video frames of a spherical representation of 360-degree video data. Two-dimensional pixel coordinates of a pixel location of a planar surface of a geometry can be determined. The planar surface can be part of a plurality of planar surfaces of the geometry. Two-dimensional normalized coordinates can be determined for the pixel location based on an adaptation parameter and the two-dimensional pixel coordinates. Three-dimensional coordinates of a sample point of the spherical representation of the 360-degree video data can be determined based on the two-dimensional normalized coordinates. A pixel value for the pixel location of the planar surface of the geometry can be determined based on the sample point, and a second video bitstream can be generated that includes pixel values determined for pixel locations of the plurality of planar surfaces of the geometry.
US Patent 10915986 Adaptive perturbed cube map projection
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