Apparatus and method for performing intra prediction for image decoder
First Claim
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1. An apparatus for performing intra prediction for an image decoder, comprising:
- a memory for storing image data;
a prediction apparatus for parallel processing intra prediction with respect to 16×
16 luminance component and 4×
4 luminance component and then performing intra prediction for chrominance component by means of horizontal/vertical blocks adjacent to the image data supplied from the memory;
a multiplexer for selecting a result operated from the prediction apparatus; and
a first control unit for controlling the memory, the prediction apparatus and the multiplexer.
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Abstract
Provided is an apparatus and method for performing intra prediction for an image decoder, in which by use of horizontal/vertical blocks adjacent to image data input from an external device, the intra prediction is performed in parallel with respect to 16×16 luminance component and 4×4 luminance component of the image data and then with respect to chrominance component, thereby maximizing efficiency of system to not only reduce execution time and hardware cost but also increase processing speed.
23 Citations
11 Claims
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1. An apparatus for performing intra prediction for an image decoder, comprising:
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a memory for storing image data;
a prediction apparatus for parallel processing intra prediction with respect to 16×
16 luminance component and 4×
4 luminance component and then performing intra prediction for chrominance component by means of horizontal/vertical blocks adjacent to the image data supplied from the memory;
a multiplexer for selecting a result operated from the prediction apparatus; and
a first control unit for controlling the memory, the prediction apparatus and the multiplexer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for performing intra prediction for an image decoder, comprising the steps of:
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(a) storing image data;
(b) parallel processing intra prediction with respect to 16×
16 luminance component and 4×
4 luminance component by means of horizontal/vertical blocks adjacent to the stored image data; and
(c) performing intra prediction for chrominance component by means of the horizontal/vertical blocks adjacent to the stored image data. - View Dependent Claims (8, 9, 10, 11)
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Specification