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。

公开(公告)号：US09258392B2

公开(公告)日：2016-02-09

申请号：US14086898

申请日：2013-11-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi Ryong Park ,  Hyun Woo Oh ,  Jae Kwan Yun ,  Mi Kyong Han ,  Ji Yeon Kim ,  Deock Gu Jee ,  Kwang Roh Park

IPC: H04M1/00 ,  H04M1/02 ,  H04M1/725 ,  G06F1/16 ,  H04N21/41 ,  H04N21/81 ,  H04N21/8543

CPC classification number: H04M1/0202 ,  G06F1/1684 ,  G06F1/1686 ,  G06F1/1694 ,  H04M1/72522 ,  H04M2250/10 ,  H04M2250/12 ,  H04M2250/52 ,  H04N21/4131 ,  H04N21/8126 ,  H04N21/8543

Abstract: Disclosed are a method and an apparatus for generating metadata of immersive media and disclosed also are an apparatus and a method for transmitting metadata related information. The apparatus includes: at least one of a camera module photographing or capturing the image; a gyro module sensing horizontality; a global positioning sensor (GPS) module calculating a position by receiving a satellite signal; and an audio module recording audio; and a network module receiving sensor effect information from a sensor aggregator through a wireless communication network; and an application generating metadata by performing timer-synchronization of an image photographed based on the camera module, a sensor effect collected by using the gyro module or the GPS module, or audio collected based on the audio module.

Abstract translation: 公开了用于生成沉浸式媒体的元数据的方法和装置，并且还公开了一种用于发送元数据相关信息的装置和方法。 该装置包括：照相机模块中的至少一个拍摄或拍摄图像; 感测水平度的陀螺仪模块; 全球定位传感器（GPS）模块，通过接收卫星信号来计算位置; 和音频模块录制音频; 以及网络模块，通过无线通信网络从传感器聚合器接收传感器效果信息; 以及通过执行基于相机模块拍摄的图像的定时器同步，通过使用陀螺仪模块或GPS模块收集的传感器效果或基于音频模块收集的音频来生成元数据的应用。