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    Method and device for generating a prediction block to encode and decode an image
    376.
    发明授权
    Method and device for generating a prediction block to encode and decode an image 有权
    用于生成预测块以对图像进行编码和解码的方法和装置

    公开(公告)号：US09374595B2

    公开(公告)日：2016-06-21

    申请号：US14446447

    申请日：2014-07-30

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Hui Yong Kim ,  Jin Ho Lee ,  Sung Chang Lim ,  Jin Soo Choi ,  Jin Woong Kim

    IPC: H04N19/51 ,  H04N19/52 ,  H04N19/513 ,  H04N19/593 ,  H04N19/105 ,  H04N19/182 ,  H04N19/196 ,  H04N19/82

    CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/182 ,  H04N19/196 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/82

    Abstract: A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a final correction value that is calculated by performing an arithmetic right shift by a binary digit 1 for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. Thus, the operational complexity during image encoding/decoding can be reduced.

    Abstract translation: 根据本发明的用于解码图像的方法包括以下步骤：通过对熵解码的残留块执行逆量化和逆变换来恢复残差块; 通过对当前块执行帧内预测来生成预测块; 以及通过将所述恢复的残差块加到所述预测块中来恢复图像，其中，所述生成所述预测块的步骤还包括根据所述预测块的第一预测值生成要预测的像素的最终预测值的步骤 要包括在当前块中的要预测的像素，以及通过针对二进制补码整数表示相对于像素的初始校正值对二进制数1执行算术右移而计算的最终校正值， 被预测。 因此，可以降低图像编码/解码期间的操作复杂度。

    Depth video filtering method and apparatus
    377.
    发明授权
    Depth video filtering method and apparatus 有权
    深度视频滤波方法及装置

    公开(公告)号：US09313473B2

    公开(公告)日：2016-04-12

    申请号：US13660953

    申请日：2012-10-25

    Applicant: Electronics and Telecommunications Research Institute ,  Gwangju Institute of Science and Technology

    Inventor： Seung Jun Yang ,  Ji Hun Cha ,  Jin Woong Kim ,  Sang Beom Lee ,  Yo Sung Ho

    IPC: H04N13/00 ,  G06T5/00 ,  G06T5/20 ,  G06T5/50

    CPC classification number: H04N13/117 ,  G06T5/002 ,  G06T5/20 ,  G06T5/50 ,  G06T2200/04 ,  G06T2207/10021 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/20028 ,  G06T2207/20182 ,  H04N13/15 ,  H04N2013/0081

    Abstract: An image synthesizing method according to the present invention includes generating a depth image in a current picture by searching depth information using a plurality of color images obtained at different view points, performing filtering on the depth image using a 3-dimensional (3D) joint bilateral filter, and generating a synthesized image using the plurality of color images and the filtered depth image, wherein the 3D joint bilateral filter performs filtering on the generated depth image using color image information for at least one of previous pictures, the current picture, and subsequent pictures, and the color image information includes information on a boundary of an object in the color images and color information of the color images. According to the present invention, image processing performance may be enhanced.

    Abstract translation: 根据本发明的图像合成方法包括通过使用在不同视点获得的多个彩色图像搜索深度信息来生成当前图像中的深度图像，使用三维（3D）联合双边对深度图像进行滤波 使用多个彩色图像和滤波后的深度图像生成合成图像，其中3D关节双边滤波器使用用于至少一个先前图像，当前图像和随后的彩色图像信息对所生成的深度图像进行滤波 图像和彩色图像信息包括关于彩色图像中的对象的边界和彩色图像的颜色信息的信息。 根据本发明，可以提高图像处理性能。

    Method for encoding and decoding images based on constrained offset compensation and loop filter, and apparatus therefor
    378.
    发明授权
    Method for encoding and decoding images based on constrained offset compensation and loop filter, and apparatus therefor 有权
    基于约束偏移补偿和环路滤波器对图像进行编码和解码的方法及其装置

    公开(公告)号：US09204148B1

    公开(公告)日：2015-12-01

    申请号：US14820880

    申请日：2015-08-07

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jin Ho Lee ,  Hui Yong Kim ,  Sung Chang Lim ,  Jin Soo Choi ,  Jin Woong Kim

    IPC: H04N19/44 ,  H04N19/11 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186

    CPC classification number: H04N19/11 ,  H04N19/117 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

    Abstract: Provided are a method and apparatus for encoding and decoding images based on constrained offset compensation and a loop filter. The image decoding apparatus: receives, from an encoder, a first indicator indicating whether a sequence, a picture, a frame, a slice, a coding unit (CU), a prediction unit (PU), and/or a transform unit (TU) supports constrained offset compensation; receives, from the encoder, a second indicator indicating whether constrained sample adaptive offset (SAO) compensation or an adaptive loop filter (ALF) is applied; receives a parameter from the encoder; and applies the SAO compensation or the ALF to pixels of a restored image on the basis of the second indicator and the parameter.

    Abstract translation: 提供了一种用于基于约束偏移补偿和环路滤波器对图像进行编码和解码的方法和装置。 图像解码装置从编码器接收指示序列，图像，帧，切片，编码单元（CU），预测单元（PU）和/或变换单元（TU）的第一指示符 ）支持约束偏移补偿; 从编码器接收指示是否应用受限采样自适应偏移（SAO）补偿或自适应环路滤波器（ALF）的第二指示符; 从编码器接收参数; 并且基于第二指示符和参数将SAO补偿或ALF应用于恢复图像的像素。

    Apparatus and method for generating and consuming three-dimensional (3D) data format to generate realistic panoramic image
    379.
    发明授权
    Apparatus and method for generating and consuming three-dimensional (3D) data format to generate realistic panoramic image 有权
    用于产生和消耗三维（3D）数据格式以产生逼真全景图像的装置和方法

    公开(公告)号：US09185288B2

    公开(公告)日：2015-11-10

    申请号：US13800119

    申请日：2013-03-13

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Myung Seok Ki ,  Yong Ju Cho ,  Seong Yong Lim ,  Ji hun Cha ,  Seung Kwon Beack ,  Yong Ju Lee ,  Jin Woong Kim ,  Seong Dae Kim ,  Wook Joong Kim ,  Ji Sung Yoo ,  Sung Soo Hwang

    IPC: H04N5/232 ,  H04N13/00

    CPC classification number: H04N5/23238 ,  H04N13/106 ,  H04N13/161

    Abstract: An apparatus and method for generating and consuming a three-dimensional (3D) data format to generate a realistic panoramic image are provided. The apparatus may include an image preprocessing unit to search for a matching point between images captured by a plurality of cameras, and to extract, as image information, at least one of a depth value, a texture value and object division information from each of the captured images, an image information structuring unit to structure 3D data to use the extracted image information to generate a realistic image, a 3D data format storage unit to store format information of the structured 3D data in a database (DB), realistic image generating unit to generate a realistic panoramic image using the stored format information of the 3D data, and a realistic image rendering unit to perform rendering on the generated realistic panoramic image.

    Abstract translation: 提供了一种用于产生和消耗三维（3D）数据格式以产生逼真全景图像的装置和方法。 该装置可以包括图像预处理单元，用于搜索由多个相机拍摄的图像之间的匹配点，并且从图像信息中提取深度值，纹理值和对象分割信息中的至少一个， 拍摄图像，用于构造3D数据以使用所提取的图像信息以生成逼真图像的图像信息构造单元; 3D数据格式存储单元，用于将结构化3D数据的格式信息存储在数据库（DB）中，逼真图像生成单元 使用存储的3D数据的格式信息生成逼真的全景图像，以及逼真的图像渲染单元，对所生成的逼真全景图像执行渲染。

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