Claims
- 1. A picture encoding apparatus for encoding an input digital picture signal in such a manner that the amount of generated data of the input digital picture signal is reduced, comprising:
- a block dividing portion for dividing the input digital picture signal into blocks, each of which is composed of a plurality of pixels;
- an encoding portion for encoding the pixels of each of the blocks and generating encoded data and at least one of a dynamic range and a minimum value associated with each of the blocks; and
- an optimizing portion for optimizing the at least one of the dynamic range and the minimum value generated for each of the blocks in such a manner that the sum of square of an decoded error of the encoded data becomes minimum.
- 2. A picture encoding method for encoding an input digital picture signal in such a manner that the amount of generated data of the input digital picture signal is reduced, comprising the steps of:
- dividing the input digital picture signal into blocks, each of which is composed of a plurality of pixels;
- encoding the pixels of each of the blocks and generating encoded data and at least one of a dynamic range and a minimum value; and
- optimizing the at least one of the dynamic range and the minimum value generated for each of the blocks in such a manner that the sum of square of an decoded error of the encoded data becomes minimum.
- 3. A picture encoding and transmitting method for encoding and transmitting an input digital picture signal in such a manner that the amount of generated data of the input digital picture signal is reduced, comprising the steps of:
- dividing the input digital picture signal into blocks, each of which is composed of a plurality of pixels;
- encoding the pixels of each of the blocks and generating encoded data and at least one of a dynamic range and a minimum value;
- optimizing the at least one of the dynamic range and the minimum value generated for each of the blocks in such a manner that the sum of square os an decoded error of the encoded data becomes minimum; and
- transmitting the encoded data the optimized parameter for each of the blocks.
Priority Claims (1)
Number |
Date |
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Kind |
7-178244 |
Jun 1995 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/671,783, filed Jun. 20, 1996, now U.S. Pat. No. 5,734,433.
US Referenced Citations (13)
Continuations (1)
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Number |
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671783 |
Jun 1996 |
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