基本信息:
- 专利标题: 비디오 코딩/디코딩 시스템들을 위한 다차원 양자화 기법들
- 专利标题(英):/ MULTIDIMENSIONAL QUANTIZATION TECHNIQUES FOR VIDEO CODING/DECODING SYSTEMS
- 申请号:KR1020217034784 申请日:2017-07-27
- 公开(公告)号:KR102438062B1 公开(公告)日:2022-08-31
- 优先权: US15/250,608 2016-08-29
- 国际申请: PCT/US2017/044208 2017-07-27
- 国际公布: WO2018044441 2018-03-08
- 主分类号: H04N19/124
- IPC分类号: H04N19/124 ; H04N19/13 ; H04N19/132 ; H04N19/15 ; H04N19/167 ; H04N19/184 ; H04N19/186 ; H04N19/30 ; H04N19/436 ; H04N19/42 ; H04N19/48
Video compression and decompression techniques are disclosed that provide improved bandwidth control for video compression and decompression systems. In particular, video coding and decoding techniques quantize input video in multiple dimensions. According to these techniques, pixel residuals may be generated from a comparison of an array of input data to an array of prediction data. The pixel residuals may be quantized in a first dimension. After the quantization, the quantized pixel residuals may be transformed to an array of transform coefficients. The transform coefficients may be quantized in a second dimension and entropy coded. Decoding techniques invert these processes. In still other embodiments, multiple quantizers may be provided upstream of the transform stage, either in parallel or in cascade, which provide greater flexibility to video coders to quantize data in different dimensions in an effort to balance the competing interest in compression efficiency and quality of reconstructed video.
信息查询:
EspacenetIPC结构图谱:
H | 电学 |
--H04 | 电通信技术 |
----H04N | 图像通信,例如电视 |
------H04N19/00 | 用于数字视频信号编码,解码,压缩或解压缩的方法或装置 |
--------H04N19/10 | .使用自适应编码 |
----------H04N19/102 | ..其特征在于由一个元素,参数或选择影响或通过自适应编码控制 |
------------H04N19/124 | ...量化 |