Patent AT-E400969-T1: [Translated] METHOD FOR IMPROVED ENTROPIE CODING
The invention is related to entropy coding/decoding of transform coefficient data in video compression systems. For entropy coding coefficients representing a block in a video image, a preferred embodiment of the present invention introduces events combining the position of the last non-zero coefficient in the block with whether the absolute value is greater than 1. Further, no information from outside the macroblock is used to decide what VLC to use. Coefficients are typically coded by starting in a Run-mode and continuing in Level-mode when the first coefficient with absolute value >1 is found.
Complete Metadata
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| description | The invention is related to entropy coding/decoding of transform coefficient data in video compression systems. For entropy coding coefficients representing a block in a video image, a preferred embodiment of the present invention introduces events combining the position of the last non-zero coefficient in the block with whether the absolute value is greater than 1. Further, no information from outside the macroblock is used to decide what VLC to use. Coefficients are typically coded by starting in a Run-mode and continuing in Level-mode when the first coefficient with absolute value >1 is found. |
| distribution |
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| identifier | https://healthdata.gov/api/views/dffa-ztz8 |
| issued | 2025-09-05 |
| keyword |
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| landingPage | https://healthdata.gov/d/dffa-ztz8 |
| modified | 2025-09-06 |
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| theme |
[
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| title | Patent AT-E400969-T1: [Translated] METHOD FOR IMPROVED ENTROPIE CODING |
