Apparatus and method for processing a digital video signal to produce interpolated data
First Claim
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1. Apparatus for processing a digital video signal to produce interpolated data, comprising:
- memory means for storing predetermined coefficient data for respective class codes of pixel data at addresses corresponding to said respective class codes;
means for receiving a digital video signal having an inner block and an outer block of pixel data, said inner block of pixel data representing an image spatially located within an image represented by said outer block of pixel data;
means for determining a class code of said inner block of pixel data in accordance with values of said pixels of both said inner and outer blocks of pixel data;
means for retrieving said coefficient data from said memory means from an address corresponding to said class code of said inner block of pixel data; and
means for generating interpolated data from said received digital video signal and said retrieved coefficient data.
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Abstract
Apparatus and method for processing a digital video signal having an inner block of pixel data that represents an image spatially located within an outer block of pixel data. A class code of the inner block of pixel data is determined in accordance with values of the pixels of both the inner and outer blocks; and coefficient data which corresponds to the class code of the inner block is retrieved from a memory and is used with the digital video signal to generate interpolated data to produce, for example, a high definition digital video signal.
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20 Claims
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1. Apparatus for processing a digital video signal to produce interpolated data, comprising:
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memory means for storing predetermined coefficient data for respective class codes of pixel data at addresses corresponding to said respective class codes; means for receiving a digital video signal having an inner block and an outer block of pixel data, said inner block of pixel data representing an image spatially located within an image represented by said outer block of pixel data; means for determining a class code of said inner block of pixel data in accordance with values of said pixels of both said inner and outer blocks of pixel data; means for retrieving said coefficient data from said memory means from an address corresponding to said class code of said inner block of pixel data; and means for generating interpolated data from said received digital video signal and said retrieved coefficient data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. Method of processing a digital video signal to produce interpolated data, comprising the steps of:
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storing predetermined coefficient data for respective class codes of pixel data in a memory at addresses corresponding to said respective class codes; receiving a digital video signal having an inner block and an outer block of pixel data, said inner block of pixel data representing an image spatially located within an image represented by said outer block of pixel data; determining a class code of said inner block of pixel data in accordance with values of said pixels of both said inner and outer blocks of pixel data; retrieving said coefficient data from said memory from an address corresponding to said class code of said inner block of pixel data; and generating interpolated data from said received digital video signal and said retrieved coefficient data. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification