CN111919444A - 色度块的预测方法和装置 - Google Patents
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Abstract
本申请提供了一种色度块的预测方法和装置，属于视频编解码技术领域。所述方法包括：从色度块的相邻像素中，获取预设位置的色度像素的色度值，基于色度块对应的亮度块的相邻像素，获取上述色度像素对应的亮度像素的亮度值，将亮度值分为第一亮度集合和第二亮度集合，相应的，将色度值分为第一色度集合和第二色度集合。根据第一亮度集合中亮度值的均值、第二亮度集合中亮度值的均值、第一色度集合中色度值的均值和第二色度集合中色度值的均值，确定线性模型中的缩放系数，使用缩放系数确定色度块对应的偏移因子，使用缩放系数、偏移因子和色度块对应的亮度重建信息，确定色度块的预测信息。这样，可以提高色度块的预测效率。
Description
PCT国内申请，说明书已公开。
Claims (28)
- PCT国内申请，权利要求书已公开。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910005667.3A CN111405287B (zh) | 2019-01-03 | 2019-01-03 | 色度块的预测方法和装置 |
| CN2019100056673 | 2019-01-03 | ||
| PCT/CN2019/124399 WO2020140700A1 (zh) | 2019-01-03 | 2019-12-10 | 色度块的预测方法和装置 |
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| Publication Number | Publication Date |
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| CN111919444A true CN111919444A (zh) | 2020-11-10 |
| CN111919444B CN111919444B (zh) | 2023-02-03 |
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Cited By (1)
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| CN113099221A (zh) * | 2021-02-22 | 2021-07-09 | 浙江大华技术股份有限公司 | 跨分量样点自适应补偿方法、编码方法及相关装置 |
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| US20220078405A1 (en) * | 2018-11-05 | 2022-03-10 | Interdigital Vc Holdings, Inc. | Simplifications of coding modes based on neighboring samples dependent parametric models |
| US11483557B2 (en) * | 2020-06-18 | 2022-10-25 | Tencent America LLC | Separate constrained directional enhancement filter |
| CN114066914A (zh) * | 2020-07-30 | 2022-02-18 | 华为技术有限公司 | 一种图像处理方法以及相关设备 |
| CN118318437A (zh) * | 2021-12-09 | 2024-07-09 | 北京达佳互联信息技术有限公司 | 用于视频编解码的跨分量预测的方法和装置 |
| WO2023125771A1 (en) * | 2021-12-29 | 2023-07-06 | Mediatek Inc. | Cross-component linear model prediction |
| JP2024006522A (ja) * | 2022-07-04 | 2024-01-17 | シャープ株式会社 | 予測画像生成装置、動画像復号装置、および動画像符号化装置 |
| CN117478895A (zh) * | 2022-07-19 | 2024-01-30 | 腾讯科技（深圳）有限公司 | 数据处理方法、装置、设备 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113099221A (zh) * | 2021-02-22 | 2021-07-09 | 浙江大华技术股份有限公司 | 跨分量样点自适应补偿方法、编码方法及相关装置 |
| CN113099221B (zh) * | 2021-02-22 | 2023-06-02 | 浙江大华技术股份有限公司 | 跨分量样点自适应补偿方法、编码方法及相关装置 |
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| CN116320454A (zh) | 2023-06-23 |
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| CN111405287A (zh) | 2020-07-10 |
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