公开(公告)号：US08891892B2

公开(公告)日：2014-11-18

申请号：US13743630

申请日：2013-01-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Noh-Sam Park ,  Sang Wook Park ,  Eun Jin Ko ,  Hyun Chul Kang ,  Mi Kyong Han ,  Jong Hyun Jang ,  Kwang Roh Park

IPC: G06K9/36 ,  G06K9/46 ,  G06T9/00

CPC classification number: G06T9/004 ,  H04N19/124 ,  H04N19/154 ,  H04N19/176 ,  H04N19/61 ,  H04N19/85

Abstract: The present invention relates to an image encoding method using an adaptive preprocessing scheme, including loading an input image for each frame, determining an encoding type of each of the frames, determining the size of a block to be encoded in each frame according to the determined encoding type, determining blocks that can be replicated from the blocks having the determined size and performing an intra-picture replication preprocessing or inter-picture replication preprocessing procedure on the determined blocks according to the encoding types of the frames, and encoding the frames on which the preprocessing procedure has been performed.

Abstract translation: 本发明涉及一种使用自适应预处理方案的图像编码方法，包括加载每帧的输入图像，确定每个帧的编码类型，根据确定的每帧确定要编码的块的大小 编码类型，确定可以从具有确定尺寸的块中复制的块，并且根据帧的编码类型对所确定的块执行图像内复制预处理或图像间复制预处理过程，并对其进行编码 已经执行了预处理程序。

公开(公告)号：US09165380B2

公开(公告)日：2015-10-20

申请号：US13834680

申请日：2013-03-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Eun Jin Ko ,  Hyun Chul Kang ,  Sang Wook Park ,  Noh-Sam Park ,  Mi Kyong Han ,  Mi Ryong Park ,  Jong Hyun Jang ,  Kwang Roh Park

IPC: G06K9/36 ,  G06T9/00 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/61 ,  H04N19/136

CPC classification number: G06T9/004 ,  H04N19/119 ,  H04N19/136 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

Abstract: An image encoding method using a Binary Partition Tree (BPT) includes performing the BPT on a reference frame, detecting blocks, each having a difference in a pixel value exceeding a threshold value in a current frame, based on a result of the BPT of the reference frame, and performing the BPT of the current frame on the detected blocks. In accordance with the present invention, block partition is not applied to all frames, but a partial partition method based on a difference between the pixel values of a reference frame and a current frame to be encoded is provided. Accordingly, the encoding speed within the P frame or the B frame can be improved. Furthermore, the PSNR of a corresponding frame can be maintained within a specific range of the PSNR of a reference frame, and a compression effect can be improved.

Abstract translation: 使用二进制分区树（BPT）的图像编码方法包括在参考帧上执行BPT，基于BPT的结果，检测在当前帧中具有超过阈值的像素值差异的块 参考帧，并在检测到的块上执行当前帧的BPT。 根据本发明，块分割不适用于所有帧，但是提供了基于参考帧的像素值与要编码的当前帧之间的差异的部分分割方法。 因此，可以提高P帧或B帧内的编码速度。 此外，相应帧的PSNR可以保持在参考帧的PSNR的特定范围内，并且可以提高压缩效果。