公开(公告)号：US20160337643A1

公开(公告)日：2016-11-17

申请号：US15219487

申请日：2016-07-26

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation ,  University-Industry Cooperation Group of Kyung Hee University ,  Korea Advanced Institute of Science and Technology

Inventor： Sung-Chang LIM ,  Ha Hyun LEE ,  Hui Yong KIM ,  Se Yoon Jeong ,  Suk Hee CHO ,  Hae Chul CHOI ,  Jong Ho KIM ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woo HONG ,  Dong Gyu SIM ,  Seoung Jun OH ,  Gwang Hoon PARK ,  Mun Churl KIM ,  Neung Joo HWANG ,  Sea Nae PARK

IPC: H04N19/122 ,  H04N19/159 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/124 ,  H04N19/44 ,  H04N19/18

CPC classification number: H04N19/122 ,  H04N19/107 ,  H04N19/11 ,  H04N19/119 ,  H04N19/12 ,  H04N19/124 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/52 ,  H04N19/55 ,  H04N19/593 ,  H04N19/60 ,  H04N19/615 ,  H04N19/625 ,  H04N19/91

Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.

公开(公告)号：US20150117521A1

公开(公告)日：2015-04-30

申请号：US14525626

申请日：2014-10-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Chang LIM ,  Se Yoon JEONG ,  Jong Ho KIM ,  Hui Yong KIM ,  Dae Yeol LEE ,  Suk Hee CHO ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/186 ,  H04N19/61 ,  H04N19/176 ,  H04N19/50 ,  H04N19/124

CPC classification number: H04N19/186 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

Abstract: The present invention provides an image encoding apparatus carrying out inter-color prediction, comprising a residual block acquisition module obtaining a residual block with respect to a first color component and a residual block with respect to a second color component from a difference between an input block and a prediction block; an inter-color component prediction module carrying out inter-color component prediction by generating a residual signal reflecting a difference between a residual block with respect to the first color component and a residual block with respect to the second color component; a transform module generating a transformat coefficient by carrying out transformation with respect to the residual signal; a quantization module generating quantized data by carrying out quantization with respect to the transform coefficient; and an entropy encoding module carrying out entropy encoding by removing statistical redundancy of the quantized data.

Abstract translation: 本发明提供一种执行彩色间预测的图像编码装置，包括：残差块获取模块，根据输入块之间的差异获得关于第一颜色分量的残差块和相对于第二颜色分量的残差块 和预测块; 颜色分量预测模块，通过产生反映相对于所述第一颜色分量的残差块和相对于所述第二颜色分量的残差块之间的差异的残差信号来执行颜色间分量预测; 变换模块，通过对残差信号进行变换来生成变换系数; 量化模块，通过对变换系数进行量化，生成量化数据; 以及通过去除量化数据的统计冗余来执行熵编码的熵编码模块。

公开(公告)号：US20140287706A1

公开(公告)日：2014-09-25

申请号：US13899244

申请日：2013-05-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Myoung-Won JUNG ,  Young Jun CHONG ,  Jong Ho KIM

IPC: H04B17/00

CPC classification number: H04B17/318

Abstract: An apparatus for determining a received signal level of a radio wave in a ray-tracing wave propagation environment includes a reception unit configured to receive the radio wave; and an analyzing unit configured to determine the received signal level of the radio wave in the ray-tracing wave propagation environment. Further, the analyzing unit is configured to analyze a correlation of the height and altitude of a surface roughness that recognizes the surface of a surrounding obstacle depending on the length of wavelength in the course of delivery of a received signal of the radio wave and analyze precisely the scattering of the received signal depending on the surface roughness to determine the received signal level of the radio wave when determining the received signal level.

Abstract translation: 一种用于确定射线跟踪波传播环境中的无线电波的接收信号电平的装置，包括接收无线电波的接收单元; 以及分析单元，被配置为确定所述射线跟踪波传播环境中的所述无线电波的接收信号电平。 此外，分析单元被配置为根据无线电波的接收信号的传送过程中的波长长度来分析识别周围障碍物的表面的表面粗糙度的高度和高度的相关性，并且精确地分析 接收信号的散射取决于表面粗糙度，以在确定接收信号电平时确定无线电波的接收信号电平。

公开(公告)号：US20140257779A1

公开(公告)日：2014-09-11

申请号：US13908054

申请日：2013-06-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： YOUNG KEUN YOON ,  Jong Ho KIM ,  Young Jun CHONG ,  Jea Ick CHOI

IPC: G06F17/50

CPC classification number: G06F17/5009 ,  G06F17/5004 ,  G06F2217/16 ,  G06T13/40 ,  G06T15/06

Abstract: A ray path tracing method using a three-dimensional (3D) modeling structure, includes: generating and developing a 3D modeling structure of a glass window and a window frame; setting a ray transmitting point and a ray receiving point at respective positions, and generating a ray from the transmitting point; and forming a path of a transmitted wave ray, passing through the glass window and analyzing a propagation characteristic of the transmitted wave ray.Further, the ray path tracing method includes forming respective paths of the transmitted wave ray, a reflected wave ray, and a diffracted wave ray, and analyzing respective propagation characteristics of the transmitted wave ray, reflected wave ray, and diffracted wave ray; and calculating electric field intensities at the receiving point about all the paths formed between the transmitting point and the receiving point.

Abstract translation: 使用三维（3D）建模结构的射线路径跟踪方法包括：生成和开发玻璃窗和窗框的3D建模结构; 在各个位置设置射线发射点和射线接收点，并从所述发射点产生射线; 并且形成通过玻璃窗的透射波的路径，并分析透射波的传播特性。 此外，射线追踪方法包括形成发射波束的各路径，反射波射线和衍射波束，分析发射波束，反射波射线和衍射波束的各自的传播特性; 并且计算接收点处关于在所述发射点和所述接收点之间形成的所有路径的电场强度。

公开(公告)号：US20140133739A1

公开(公告)日：2014-05-15

申请号：US14061104

申请日：2013-10-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyon Gon CHOO ,  Suk Hee CHO ,  Jong Ho KIM ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: G06T19/20

CPC classification number: H04N13/194 ,  H04N13/161

Abstract: The present invention relates to correcting errors of multiple stream-based 3D images. The present invention comprises a 3D image synchronizing unit which synchronizes a first image and a second image consisting the 3D image; a 3D image correcting unit which detects an error block in the first image, searches a corresponding block in the second image, and corrects the error block on the basis of the block information of said corresponding block; and a compositing unit which composites the corrected first image and the second image to generate a 3D stereoscopic image. According to the present invention, bit errors occurring when transmitting multiple stream of 3D image can be corrected, providing better quality of 3D images. Also, error correction can be easily performed by using the method of the present invention without complicated calculations.

Abstract translation: 本发明涉及校正多个基于流的3D图像的误差。 本发明包括一个3D图像同步单元，它同步一个第一图像和一个由3D图像组成的第二个图像; 3D图像校正单元，其检测第一图像中的误差块，搜索第二图像中的相应块，并根据所述对应块的块信息来校正误差块; 以及合成单元，其将经校正的第一图像和第二图像合成以生成3D立体图像。 根据本发明，可以校正当发送多个3D图像流时发生的位错误，提供更好的3D图像质量。 此外，通过使用本发明的方法，可以容易地进行纠错，而无需复杂的计算。