公开(公告)号：US20140254670A1

公开(公告)日：2014-09-11

申请号：US14197756

申请日：2014-03-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Nyeong-Kyu Kwon ,  Insu Park

IPC: H04N19/50

CPC classification number: H04N19/167 ,  H04N19/119 ,  H04N19/124 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176

Abstract: A video/image compression method based on an region of interest (ROI) can be performed in a variable block video encoder such as a HEW. A ROI coding method using variable block size coding information partitions a maximum coding unit (LCU) block obtained from an image into coding unit (CU) blocks. To obtain a quantization parameter of each coding unit (CU) block, the value of its quantization parameter is assigned based on its first hierarchical depth information and its second hierarchical depth information by using the first hierarchical depth information related to the size of the coding unit (CU) block and using the second hierarchical depth information related to the size of a prediction unit (PU) block correspondingly represented in consequence of the partition of the coding unit (CU) block. The resulting values of a quantization parameter assigned to different coding unit (CU) blocks may be different.

Abstract translation: 可以在诸如HEW的可变块视频编码器中执行基于感兴趣区域（ROI）的视频/图像压缩方法。 使用可变块大小编码信息的ROI编码方法将从图像获得的最大编码单位（LCU）块分割成编码单元（CU）块。 为了获得每个编码单元（CU）块的量化参数，通过使用与编码单元（CU）块的大小相关的第一分层深度信息，基于其第一分层深度信息及其第二分层深度信息来分配其量化参数的值 （CU）块，并且使用与由编码单元（CU）块的分区相应地表示的预测单元（PU）块的大小相关的第二分层深度信息。 分配给不同编码单元（CU）块的量化参数的结果值可以不同。

公开(公告)号：US09681139B2

公开(公告)日：2017-06-13

申请号：US14197756

申请日：2014-03-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Nyeong-Kyu Kwon ,  Insu Park

IPC: H04N19/124 ,  H04N19/167 ,  H04N19/176 ,  H04N19/119 ,  H04N19/147 ,  H04N19/157

CPC classification number: H04N19/167 ,  H04N19/119 ,  H04N19/124 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176

Abstract: A video/image compression method based on an region of interest (ROI) can be performed in a variable block video encoder such as a HEVC. A ROI coding method using variable block size coding information partitions a maximum coding unit (LCU) block obtained from an image into coding unit (CU) blocks. To obtain a quantization parameter of each coding unit (CU) block, the value of its quantization parameter is assigned based on its first hierarchical depth information and its second hierarchical depth information by using the first hierarchical depth information related to the size of the coding unit (CU) block and using the second hierarchical depth information related to the size of a prediction unit (PU) block correspondingly represented in consequence of the partition of the coding unit (CU) block. The resulting values of a quantization parameter assigned to different coding unit (CU) blocks may be different.