Video encoder, video decoder, video encoding method, video decoding method, and video encoding and decoding system
First Claim
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1. A video decoder for decoding an encoded bitstream of video data, comprising:
- a motion compensation unit for calculating a position for a sample image portion with a motion vector and rounding information in the bitstream, and rounding the calculated position with the rounding information, the rounding information indicating accuracy for rounding and being decoded from the bitstream; and
an image reconstruction unit for reconstructing a decoded image portion of the video data from the sample image portion.
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Abstract
A method and a video decoder for decoding an encoded bitstream of video data in a picture encoding and decoding system are disclosed. The video decoder includes a motion compensation unit for calculating a position for a sample image portion using an encoded bitstream of video data having a motion vector and rounding information. The calculated position of a sample image is rounded with the rounding information. The rounding information indicates the accuracy for rounding, and it is decoded from the bitstream. An image reconstruction unit reconstructs a decoded image portion of the video data from the sample image portion.
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10 Claims
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1. A video decoder for decoding an encoded bitstream of video data, comprising:
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a motion compensation unit for calculating a position for a sample image portion with a motion vector and rounding information in the bitstream, and rounding the calculated position with the rounding information, the rounding information indicating accuracy for rounding and being decoded from the bitstream; and an image reconstruction unit for reconstructing a decoded image portion of the video data from the sample image portion. - View Dependent Claims (2, 3, 4, 5)
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6. A video decoding method for decoding a bitstream of video data having motion vectors and rounding information, comprising:
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a step for calculating a sample position on a reference image portion with a motion vector, the motion vector being comprised in the bitstream; a step for rounding the calculated position according to rounding information, the rounding information being extracted from the bitstream; a step for producing a decoded image from the reference image portion indicated by the calculated position rounded by the step for rounding. - View Dependent Claims (7, 8, 9, 10)
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Specification