KR20240051259A - 루마로부터의 크로마 예측을 위한 다운샘플링 필터들의 선택 - Google Patents
루마로부터의 크로마 예측을 위한 다운샘플링 필터들의 선택 Download PDFInfo
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- KR20240051259A KR20240051259A KR1020247010784A KR20247010784A KR20240051259A KR 20240051259 A KR20240051259 A KR 20240051259A KR 1020247010784 A KR1020247010784 A KR 1020247010784A KR 20247010784 A KR20247010784 A KR 20247010784A KR 20240051259 A KR20240051259 A KR 20240051259A
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Classifications
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/117—Filters, e.g. for pre-processing or post-processing
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- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
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- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
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- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
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- H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202263403635P | 2022-09-02 | 2022-09-02 | |
| US63/403,635 | 2022-09-02 | ||
| US17/992,282 | 2022-11-22 | ||
| US17/992,282 US12407824B2 (en) | 2022-09-02 | 2022-11-22 | Selecting downsampling filters for chroma from luma prediction |
| PCT/US2022/080623 WO2024049489A1 (en) | 2022-09-02 | 2022-11-30 | Selecting downsampling filters for chroma from luma prediction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20240051259A true KR20240051259A (ko) | 2024-04-19 |
Family
ID=90061722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020247010784A Pending KR20240051259A (ko) | 2022-09-02 | 2022-11-30 | 루마로부터의 크로마 예측을 위한 다운샘플링 필터들의 선택 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US12407824B2 (https=) |
| EP (1) | EP4581824A1 (https=) |
| JP (1) | JP2025528984A (https=) |
| KR (1) | KR20240051259A (https=) |
| CN (1) | CN118235406A (https=) |
| WO (1) | WO2024049489A1 (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12452437B1 (en) * | 2023-07-19 | 2025-10-21 | Zoom Communications, Inc. | Fast parameter search for chroma from luma intra prediction in video coding |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7953152B1 (en) * | 2004-06-28 | 2011-05-31 | Google Inc. | Video compression and encoding method |
| GB2460069A (en) * | 2008-05-15 | 2009-11-18 | Snell & Wilcox Ltd | Sampling conversion between formats in digital image processing |
| US9693070B2 (en) * | 2011-06-24 | 2017-06-27 | Texas Instruments Incorporated | Luma-based chroma intra-prediction for video coding |
| US9307237B2 (en) * | 2012-01-19 | 2016-04-05 | Futurewei Technologies, Inc. | Reference pixel reduction for intra LM prediction |
| US10455249B2 (en) * | 2015-03-20 | 2019-10-22 | Qualcomm Incorporated | Downsampling process for linear model prediction mode |
| US10715816B2 (en) * | 2015-11-11 | 2020-07-14 | Apple Inc. | Adaptive chroma downsampling and color space conversion techniques |
| CN117478883A (zh) * | 2018-09-12 | 2024-01-30 | 北京字节跳动网络技术有限公司 | 交叉分量线性模型中的尺寸相关的下采样 |
| US10939118B2 (en) * | 2018-10-26 | 2021-03-02 | Mediatek Inc. | Luma-based chroma intra-prediction method that utilizes down-sampled luma samples derived from weighting and associated luma-based chroma intra-prediction apparatus |
| EP3903482A4 (en) * | 2019-02-22 | 2022-06-01 | Beijing Bytedance Network Technology Co., Ltd. | SELECTING ADJACENT SAMPLES FOR INTRA PREDICTION |
| WO2023225013A1 (en) * | 2022-05-16 | 2023-11-23 | Beijing Dajia Internet Information Technology Co., Ltd. | Improved cross-component prediction for video coding |
| CN119487549A (zh) * | 2022-07-04 | 2025-02-18 | 字节跳动有限公司 | 用于视频处理的方法、装置和介质 |
-
2022
- 2022-11-22 US US17/992,282 patent/US12407824B2/en active Active
- 2022-11-30 WO PCT/US2022/080623 patent/WO2024049489A1/en not_active Ceased
- 2022-11-30 EP EP22956677.3A patent/EP4581824A1/en active Pending
- 2022-11-30 KR KR1020247010784A patent/KR20240051259A/ko active Pending
- 2022-11-30 JP JP2024547773A patent/JP2025528984A/ja active Pending
- 2022-11-30 CN CN202280075374.2A patent/CN118235406A/zh active Pending
-
2025
- 2025-08-25 US US19/308,947 patent/US20250392713A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20240080443A1 (en) | 2024-03-07 |
| EP4581824A1 (en) | 2025-07-09 |
| US12407824B2 (en) | 2025-09-02 |
| CN118235406A (zh) | 2024-06-21 |
| US20250392713A1 (en) | 2025-12-25 |
| WO2024049489A1 (en) | 2024-03-07 |
| JP2025528984A (ja) | 2025-09-04 |
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