公开(公告)号：US20220353543A1

公开(公告)日：2022-11-03

申请号：US17867644

申请日：2022-07-18

Applicant: Apple Inc.

Inventor： Hye-Yeon Cheong ,  David W. Singer ,  Alexandros Tourapis

IPC: H04N19/82 ,  H04N19/107 ,  H04N19/137 ,  H04N19/182 ,  H04N19/186

Abstract: A system comprises an encoder configured to compress video data using an in-loop noise generation process that generates noise in the compression loop at a sub-image portion level of granularity, such as at a block level. The encoder includes noise model and/or noise model input parameter information in an encoded bit stream. Also, a system includes a decoder configured to receive such a bit stream and decompress the video using an in-loop noise generation process that generates noise in the decompression loop at a sub-image portion level of granularity.

公开(公告)号：US12238342B2

公开(公告)日：2025-02-25

申请号：US17867644

申请日：2022-07-18

Applicant: Apple Inc.

Inventor： Hye-Yeon Cheong ,  David W. Singer ,  Alexandros Tourapis

IPC: H04N19/82 ,  H04N19/107 ,  H04N19/137 ,  H04N19/182 ,  H04N19/186

Abstract: A system comprises an encoder configured to compress video data using an in-loop noise generation process that generates noise in the compression loop at a sub-image portion level of granularity, such as at a block level. The encoder includes noise model and/or noise model input parameter information in an encoded bit stream. Also, a system includes a decoder configured to receive such a bit stream and decompress the video using an in-loop noise generation process that generates noise in the decompression loop at a sub-image portion level of granularity.

公开(公告)号：US11496770B2

公开(公告)日：2022-11-08

申请号：US17127921

申请日：2020-12-18

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  Hye-Yeon Cheong ,  David William Singer ,  Dominik Mehlem

IPC: H04N19/66 ,  H04N19/61 ,  H04N19/176 ,  H04N19/19 ,  H04N19/147 ,  G06T7/11 ,  G06T7/12

Abstract: A system includes an encoder configured to compress media objects using a compression loop that includes a residual decomposition component that decomposes a residual signal for a block of the media object being compressed into multiple sub-error signals. The encoder is further configured to enable different transformation and/or quantization processes to be specified to be applied to different ones of the sub-errors. A corresponding decoder is configured to apply inverse transformation/quantization processing to the sub-error signals, based on the transformation/quantization processes that were applied at the encoder. The decoder then re-creates a residual signal from the processed sub-error signals and uses the re-created residual signal to correct predicted values at the decoder.

公开(公告)号：US20210195246A1

公开(公告)日：2021-06-24

申请号：US17127921

申请日：2020-12-18

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  Hye-Yeon Cheong ,  David William Singer ,  Dominik Mehlem

IPC: H04N19/66 ,  H04N19/61 ,  H04N19/147 ,  H04N19/19 ,  H04N19/176

Abstract: A system comprises an encoder configured to compress media objects using a compression loop that includes a residual decomposition component that decomposes a residual signal for a block of the media object being compressed into multiple sub-error signals. The encoder is further configured to enable different transformation and/or quantization processes to be specified to be applied to different ones of the sub-errors. A corresponding decoder is configured to apply inverse transformation/quantization processing to the sub-error signals, based on the transformation/quantization processes that were applied at the encoder. The decoder then recreates a residual signal from the processed sub-error signals and uses the re-created residual signal to correct predicted values at the decoder.

公开(公告)号：US12075093B2

公开(公告)日：2024-08-27

申请号：US17951792

申请日：2022-09-23

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  Hye-Yeon Cheong ,  David William Singer ,  Dominik Mehlem

IPC: H04N19/66 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/61 ,  G06T7/11 ,  G06T7/12

CPC classification number: H04N19/66 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/61 ,  G06T7/11 ,  G06T7/12

Abstract: A system comprises an encoder configured to compress media objects using a compression loop that includes a residual decomposition component that decomposes a residual signal for a block of the media object being compressed into multiple sub-error signals. The encoder is further configured to enable different transformation and/or quantization processes to be specified to be applied to different ones of the sub-errors. A corresponding decoder is configured to apply inverse transformation/quantization processing to the sub-error signals, based on the transformation/quantization processes that were applied at the encoder. The decoder then re-creates a residual signal from the processed sub-error signals and uses the re-created residual signal to correct predicted values at the decoder.

公开(公告)号：US20230009225A1

公开(公告)日：2023-01-12

申请号：US17951792

申请日：2022-09-23

Applicant: Apple Inc.

Inventor： Alexandros Tourapis ,  Hye-Yeon Cheong ,  David William Singer ,  Dominik Mehlem

IPC: H04N19/66 ,  H04N19/61 ,  H04N19/176 ,  H04N19/19 ,  H04N19/147

Abstract: A system comprises an encoder configured to compress media objects using a compression loop that includes a residual decomposition component that decomposes a residual signal for a block of the media object being compressed into multiple sub-error signals. The encoder is further configured to enable different transformation and/or quantization processes to be specified to be applied to different ones of the sub-errors. A corresponding decoder is configured to apply inverse transformation/quantization processing to the sub-error signals, based on the transformation/quantization processes that were applied at the encoder. The decoder then re-creates a residual signal from the processed sub-error signals and uses the re-created residual signal to correct predicted values at the decoder.

公开(公告)号：US20210092459A1

公开(公告)日：2021-03-25

申请号：US17029649

申请日：2020-09-23

Applicant: Apple Inc.

Inventor： Hye-Yeon Cheong ,  David W. Singer ,  Alexandros Tourapis

IPC: H04N19/82 ,  H04N19/137 ,  H04N19/182 ,  H04N19/107 ,  H04N19/186

Abstract: A system comprises an encoder configured to compress video data using an in-loop noise generation process that generates noise in the compression loop at a sub-image portion level of granularity, such as at a block level. The encoder includes noise model and/or noise model input parameter information in an encoded bit stream. Also, a system includes a decoder configured to receive such a bit stream and decompress the video using an in-loop noise generation process that generates noise in the decompression loop at a sub-image portion level of granularity.