RU99116021A - PARALLEL DECODING OF INTERMEDIATE DATA STREAMS USING AN EGPI DECODER - Google Patents

PARALLEL DECODING OF INTERMEDIATE DATA STREAMS USING AN EGPI DECODER

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Publication number
RU99116021A
RU99116021A RU99116021/09A RU99116021A RU99116021A RU 99116021 A RU99116021 A RU 99116021A RU 99116021/09 A RU99116021/09 A RU 99116021/09A RU 99116021 A RU99116021 A RU 99116021A RU 99116021 A RU99116021 A RU 99116021A
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data
egpi
pixels
blocks
stream
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RU99116021/09A
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Russian (ru)
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RU2215375C2 (en
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Грег Алан КРАНАВЕТТЕР
Марк Алан ШУЛЬЦ
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Томсон Конзьюмер Электроникс, Инк.
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Claims (15)

1. Система обработки цифровых сигналов, совместимая со стандартом экспертной группы по подвижным изображениям - ЭГПИ, содержащая: входную цепь (12, 14 ...) для приема потока кодированных согласно ЭГПИ данных; цепь перемежения (24, 27), реагирующую на поток данных, для получения из него множества потоков данных (Р1, Р2), каждый их которых представляется заранее определенной последовательностью перемежающихся данных изображения; и процессор сигналов изображения (30, 32, 40, 42, 36, 38 ...), реагирующий на упомянутое множество потоков данных, для создания декодированной информации о изображении.1. A digital signal processing system compatible with the standard of the expert group on moving images - EGPI, comprising: an input circuit (12, 14 ...) for receiving a stream of data encoded according to EGPI; an interleaving circuit (24, 27) that responds to a data stream to obtain from it a plurality of data streams (P1, P2), each of which is represented by a predetermined sequence of interleaved image data; and an image signal processor (30, 32, 40, 42, 36, 38 ...), responsive to the plurality of data streams, to generate decoded image information. 2. Система по п.1, в которой упомянутые перемежающиеся данные изображения содержат составляющие блоков данных из макроблока, совместимого со стандартом ЭГПИ, содержащего информацию, представляющую пиксели. 2. The system of claim 1, wherein said interleaved image data comprises constituent data blocks from a macroblock compatible with the EGPI standard containing information representing pixels. 3. Система по п.1, в которой упомянутая цепь перемежения создает первый поток данных (Р1) из перемежающихся составляющих первого и второго блока пикселей (А, С), и второй поток данных (Р2) из перемежающихся составляющих третьего и четвертого блока пикселей (B, D). 3. The system according to claim 1, in which said interleaving circuit creates a first data stream (P1) from interleaved components of the first and second block of pixels (A, C), and a second data stream (P2) from interleaved components of the third and fourth block of pixels ( B, D). 4. Система по п.3, в которой упомянутые составляющие первого, второго, третьего и четвертого блоков пикселей являются составляющими макроблока, совместимого со стандартом ЭГПИ. 4. The system according to claim 3, in which said components of the first, second, third and fourth blocks of pixels are components of a macroblock that is compatible with the standard EGPI. 5. Система по п. 1, в которой входная цепь включает декодер (14) для декодирования упомянутого потока данных, закодированного согласно ЭГПИ; устройство распаковки (18, 20) для распаковки выходных сигналов из упомянутого декодера; в которой упомянутая цепь перемежения реагируют на выходные сигналы из устройства распаковки. 5. The system of claim 1, wherein the input circuit includes a decoder (14) for decoding said data stream encoded according to the EGPI; an unpacking device (18, 20) for unpacking the output signals from said decoder; wherein said interleaving circuit is responsive to output signals from the decompressor. 6. Система по п. 1, кроме того включающая память (60) для запоминания данных, представляющих изображение; и цепь компенсации движения (90), подсоединенную к памяти; в которой упомянутый процессор сигналов изображения и упомянутая цепь компенсации движения содержат контур ДИКМ (дифференциальная импульсно-кодовая модуляция). 6. The system of claim 1, further comprising a memory (60) for storing data representing the image; and a motion compensation circuit (90) connected to the memory; wherein said image signal processor and said motion compensation circuit comprise a DPCM (differential pulse code modulation) loop. 7. Способ для обработки потока закодированных согласно ЭГПИ данных, представляющих изображение, содержащий шаги, на которых декодируют упомянутые данные для получения декодированного потока данных; создают из упомянутого декодированного потока данных множества потоков данных с заранее определенной последовательностью взаимно перемежающихся блоков данных, представляющих пиксели изображения; обрабатывают упомянутые перемежающиеся блоки данных на перемежающейся основе; и запоминают блоки данных из упомянутого шага обработки. 7. A method for processing a stream of data encoded according to the EGPI representing an image comprising the steps of decoding said data to obtain a decoded data stream; creating from said decoded data stream a plurality of data streams with a predetermined sequence of mutually alternating data blocks representing image pixels; processing said interleaved data blocks on an interleaved basis; and storing data blocks from said processing step. 8. Способ по п.7, в котором упомянутый шаг создания создает первый поток данных из составляющих перемежающихся первого и второго блока пикселей и второй поток данных из составляющих перемежающихся третьего и четвертого блоков пикселей. 8. The method according to claim 7, in which said creation step creates a first data stream from the components of the alternating first and second block of pixels and a second data stream from the components of the alternating third and fourth blocks of pixels. 9. Способ по п. 8, в котором упомянутые перемежающиеся блоки пикселей включают макроблок, совместимый со стандартом ЭГПИ. 9. The method of claim 8, wherein said interleaved blocks of pixels include a macroblock compatible with the EGPI standard. 10. Способ по п.7, в котором упомянутый шаг обработки включает обработку данных пикселей с ДИКМ. 10. The method according to claim 7, in which said processing step includes processing pixel data with DPCM. 11. Способ по п.10, в котором шаг обработки с ДИКМ дополнительно включает шаги на которых распаковывают блоки данных, запоминаемых на упомянутом шаге запоминания; и обрабатывают с компенсацией движения распакованные блоки данных, созданных на упомянутом шаге распаковки. 11. The method according to claim 10, in which the processing step with DPCM further includes the steps of unpacking the data blocks stored in the said storage step; and process, with motion compensation, the decompressed data blocks created in the decompression step mentioned. 12. Способ по п. 9, в котором упомянутый шаг обработки содержит шаги предсказания значений пикселей и уплотнения значений пикселей. 12. The method of claim 9, wherein said processing step comprises steps for predicting pixel values and compressing pixel values. 13. Способ обработки потока кодированных согласно ЭГПИ данных, представляющих изображение, содержащий шаги, на которых: осуществляют прием входного потока кодированных согласно ЭГПИ данных; декодируют указанный входной поток данных для формирования декодированного потока данных блоков данных, содержащих информацию, представляющую пиксели; обрабатывают указанный декодированный поток данных для формирования из него первого потока данных, содержащего первую и вторую группы составляющих блоков данных, перемеженных в заранее определенной последовательности, и второго потока данных, содержащего третью и четвертую группу составляющих блоков данных, перемеженных в заранее определенной последовательности; и декодируют указанные первый и второй потоки данных для формирования декодированной информации изображения. 13. A method of processing a stream of data encoded according to the EGPI representing an image comprising the steps of: receiving an input stream of data encoded according to the EGPI; decode the specified input data stream to form a decoded data stream of data blocks containing information representing pixels; processing said decoded data stream to form therefrom a first data stream containing the first and second groups of constituent data blocks interleaved in a predetermined sequence and a second data stream containing a third and fourth group of constituent data blocks interleaved in a predetermined sequence; and decoding said first and second data streams to generate decoded image information. 14. Способ по п.13, в котором указанную первую группу составляют первым и вторым блоками пикселей макроблока, совместимого со стандартом ЭГПИ; и указанную вторую группу составляют третьим и четвертым блоками пикселей макроблока, совместимого со стандартом ЭГПИ. 14. The method according to item 13, in which the specified first group are the first and second blocks of pixels of the macroblock, compatible with the standard EGPI; and the specified second group are the third and fourth blocks of pixels of the macroblock, compatible with the standard EGPI. 15. Способ по п.14, в котором указанные первая, вторая, третья и четвертая группы содержат один и тот же макроблок. 15. The method of claim 14, wherein said first, second, third and fourth groups comprise the same macroblock.
RU99116021/09A 1996-12-18 1997-12-15 Concurrent decoding of interleaving data streams with aid of decoder RU2215375C2 (en)

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