Fast mode decision algorithm for intra prediction for advanced video coding
First Claim
1. A method of AVC intra prediction to code digital video comprising a plurality of pictures, said method comprising the steps of:
- generating edge directional information for each intra block of a digital picture; and
choosing most probable intra prediction modes for rate distortion optimisation dependent upon said generated edge directional information.
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Abstract
A method (400) and an apparatus for AVC intra prediction to code digital video comprising a plurality of pictures are disclosed. The method comprises the steps of: generating (410) edge directional information for each intra block of a digital picture; and choosing (420) most probable intra prediction modes for rate distortion optimisation dependent upon the generated edge directional information. The edge directional information may be generated by applying at least one edge operator to the digital picture. The edge direction histogram may sum up the amplitudes of pixels with similar 15 directions in the block. The method may further comprise the step of intra coding (430) a block of the digital picture using the chosen most probable intra prediction modes.
140 Citations
42 Claims
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1. A method of AVC intra prediction to code digital video comprising a plurality of pictures, said method comprising the steps of:
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generating edge directional information for each intra block of a digital picture; and
choosing most probable intra prediction modes for rate distortion optimisation dependent upon said generated edge directional information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus using AVC intra prediction to code digital video comprising a plurality of pictures, said apparatus comprising:
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means for generating edge directional information for each intra block of a digital picture; and
means for choosing most probable intra prediction modes for rate distortion optimisation dependent upon said generated edge directional information. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A computer program product having a computer program recorded on a computer readable medium using AVC intra prediction to code digital video comprising a plurality of pictures, said computer program product comprising:
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computer program code means for generating edge directional information for each intra block of a digital picture; and
computer program code means for choosing most probable intra prediction modes for rate distortion optimisation dependent upon said generated edge directional information. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification