公开(公告)号：US10757416B2

公开(公告)日：2020-08-25

申请号：US15307172

申请日：2015-05-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-o Park ,  Kwang-pyo Choi ,  Jeong-hoon Park

IPC: H04N19/137 ,  H04N19/132 ,  H04N19/139 ,  H04N19/124 ,  H04N19/177 ,  H04N19/98 ,  H04N19/12 ,  H04N19/182 ,  H04N19/184

Abstract: Provided is a method for adaptively compressing image data. A refresh rate and a compression rate of the image data are determined based on motion information of the image data, and the image data are compressed based on the determined refresh rate and compression rate.

公开(公告)号：US10277903B2

公开(公告)日：2019-04-30

申请号：US15727003

申请日：2017-10-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin ,  Jeong-hoon Park

IPC: H04N19/14 ,  H04N19/103 ,  H04N19/186 ,  H04N19/13 ,  H04N19/82 ,  H04N19/91 ,  H04N19/463 ,  H04N19/86

Abstract: The present disclosure relates to signaling of sample adaptive offset (SAO) parameters determined to minimize an error between an original image and a reconstructed image in video encoding and decoding operations. An SAO decoding method includes obtaining context-encoded leftward SAO merge information and context-encoded upward SAO merge information from a bitstream of a largest coding unit (MCU); obtaining SAO on/off information context-encoded with respect to each color component, from the bitstream; if the SAO on/off information indicates to perform SAO operation, obtaining absolute offset value information for each SAO category bypass-encoded with respect to each color component, from the bitstream; and obtaining one of band position information and edge class information bypass-encoded with respect to each color component, from the bitstream.

公开(公告)号：US09967570B2

公开(公告)日：2018-05-08

申请号：US15676155

申请日：2017-08-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-o Park ,  Chan-yul Kim ,  Kwang-pyo Choi ,  Jeong-hoon Park

IPC: H04N19/00 ,  H04N19/152 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/152 ,  H04N19/44 ,  H04N19/70

Abstract: Provided are methods and apparatuses for encoding and decoding an image. Method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.

公开(公告)号：US09927867B2

公开(公告)日：2018-03-27

申请号：US14220876

申请日：2014-03-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jee-young Yeom ,  Min-Woo Lee ,  Jong-Ho Kim ,  Hyun-Hee Park ,  Hak-gyun Bae ,  Seul-ki Jang ,  Jeong-hoon Park

IPC: G09G5/00 ,  G06F3/01 ,  H04N5/20 ,  H04N5/58 ,  H04N9/73 ,  G06T5/00 ,  H04N21/422 ,  H04N21/431 ,  H04N21/44

CPC classification number: G06F3/011 ,  G06T5/00 ,  G06T5/001 ,  G09G5/00 ,  G09G2320/0626 ,  G09G2354/00 ,  G09G2360/144 ,  H04N5/20 ,  H04N5/58 ,  H04N9/73 ,  H04N21/42202 ,  H04N21/4318 ,  H04N21/44008

Abstract: A method and apparatus for processing an image based on detected information are provided. The method includes obtaining information relating to properties of the image, property information related to the image; obtaining ambient environment information of a display device for displaying the image; and processing the image based on the property information and the ambient environment information.

公开(公告)号：US09888263B2

公开(公告)日：2018-02-06

申请号：US14636571

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo Kim ,  Jeong-hoon Park

IPC: H04N19/91 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/169 ,  H04N19/129 ,  H04N19/96

CPC classification number: H04N19/91 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/96

Abstract: Methods and apparatuses for arithmetic encoding/decoding of video data. The arithmetic decoding method includes arithmetically decoding prefix bit strings representing a two-dimensional location of a last significant coefficient in a block sequentially by using a context model, arithmetically decoding suffix bit strings in a bypass mode, and performing inverse binarization on the arithmetically decoded prefix bit strings and suffix bit strings to acquire the location of the last significant coefficient in the block.

公开(公告)号：US09674534B2

公开(公告)日：2017-06-06

申请号：US14373405

申请日：2013-01-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Jeong-hoon Park

IPC: H04N19/597 ,  H04N19/30 ,  H04N19/51 ,  H04N19/52 ,  H04N19/157 ,  H04N19/172 ,  H04N19/119 ,  H04N19/96

CPC classification number: H04N19/157 ,  H04N19/119 ,  H04N19/172 ,  H04N19/30 ,  H04N19/51 ,  H04N19/597 ,  H04N19/96

Abstract: Video encoding and decoding accompanying inter prediction and motion compensation in a multi-view video prediction structure. A multi-view video prediction restoring method includes receiving a base view image stream and additional view image streams for two or more additional views; restoring base view images including base view anchor pictures that are I-picture type images by performing motion compensation referring to the base view images by using the base view image stream; and restoring images of a first additional view by performing at least one of disparity compensation referring to the restored base view images and motion compensation referring to images except for an anchor picture having a preceding reproduction order among the images of the first additional view by using an image stream of the first additional view among the additional view image streams.

公开(公告)号：US09386323B2

公开(公告)日：2016-07-05

申请号：US14645552

申请日：2015-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan-yul Kim ,  Jae-hyun Kim ,  Jeong-hoon Park

IPC: H04N19/60 ,  H04N19/70 ,  H04N19/463 ,  H04N19/91 ,  H04N19/44 ,  H04N19/196 ,  H04N19/13 ,  H04N19/122 ,  H04N19/96 ,  H04N19/157 ,  H04N19/18 ,  H03M7/40

CPC classification number: H04N19/13 ,  H03M7/4018 ,  H03M7/4075 ,  H04N19/115 ,  H04N19/122 ,  H04N19/136 ,  H04N19/139 ,  H04N19/157 ,  H04N19/18 ,  H04N19/184 ,  H04N19/196 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

Abstract: Methods and apparatuses for decoding and encoding video are provided. A method of decoding video includes obtaining bit strings corresponding to current transformation coefficient level information by arithmetic decoding a bitstream based on a context model; determining a current binarization parameter by updating or maintaining a previous binarization parameter based on a comparison of a threshold and a size of a previous transformation coefficient; obtaining the current transformation coefficient level information by performing de-binarization of the bit strings using the determined current binarization parameter; and generating a size of a current transformation coefficient using the current transformation coefficient level information, wherein the current binarization parameter has a value equal to or smaller than a predetermined value.

Abstract translation: 提供了解码和编码视频的方法和装置。 解码视频的方法包括：通过基于上下文模型对位流进行算术解码来获得与当前变换系数电平信息相对应的位串; 基于阈值和先前变换系数的大小的比较，通过更新或维持先前的二值化参数来确定当前的二值化参数; 通过使用所确定的当前二值化参数来执行位串的二进制化来获得当前变换系数电平信息; 以及使用当前变换系数水平信息生成当前变换系数的大小，其中当前二值化参数具有等于或小于预定值的值。

公开(公告)号：US20150264384A1

公开(公告)日：2015-09-17

申请号：US14434345

申请日：2013-10-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Jeong-hoon Park ,  Chan-yul Kim

IPC: H04N19/513 ,  H04N19/169 ,  H04N19/597 ,  H04N19/172 ,  H04N19/187

CPC classification number: H04N19/513 ,  H04N19/172 ,  H04N19/187 ,  H04N19/188 ,  H04N19/46 ,  H04N19/503 ,  H04N19/597 ,  H04N19/70

Abstract: A video stream decoding method includes obtaining random access point (RAP) reference layer number information indicating the number of layers referred to for performing inter layer prediction on RAP images among current layer images and non-RAP reference layer number information indicating the number of different layers referred to for performing inter layer prediction on non-RAP images, from a video stream regarding images encoded for a plurality of layers; obtaining RAP reference layer identification information for each layer referred to for predicting the RAP images based on the obtained RAP reference layer number information, from the video stream; obtaining non-RAP reference layer identification information for each layer referred to for predicting the non-RAP images based on the obtained non-RAP reference layer number information, from the video stream; reconstructing an RAP image of a current layer based on a layer image indicated by the obtained RAP reference layer identification information; and reconstructing a non-RAP image of the current layer based on a layer image indicated by the obtained non-RAP reference layer identification information.

Abstract translation: 视频流解码方法包括：获取当前层图像中指示用于对RAP图像执行帧间预测的层数的随机接入点（RAP）参考层号码信息，以及指示不同层数的非RAP参考层号码信息 用于从关于针对多个层编码的图像的视频流执行非RAP图像的帧间预测; 基于获得的RAP参考层号码信息，从视频流获取参考用于预测RAP图像的每个层的RAP参考层标识信息; 基于所获得的非RAP参考层号码信息，从所述视频流获取参考用于预测所述非RAP图像的每个层的非RAP参考层标识信息; 基于由所获得的RAP参考层标识信息指示的层图像，重建当前层的RAP图像; 并且基于由所获得的非RAP参考层标识信息指示的层图像来重建当前层的非RAP图像。

公开(公告)号：US20150117526A1

公开(公告)日：2015-04-30

申请号：US14396547

申请日：2013-04-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-doo Choi ,  Jae-hyun Kim ,  Jeong-hoon Park

IPC: H04N13/00 ,  H04N19/503

CPC classification number: H04N13/161 ,  H04N19/30 ,  H04N19/503 ,  H04N19/58 ,  H04N19/597 ,  H04N19/61

Abstract: Provided are methods of encoding and decoding a multiview video by performing inter-prediction and inter-view prediction on each view image of the multiview video.A method of prediction-encoding the multiview video includes determining at least one reference picture list from among first and second reference picture lists which respectively include restored images having a viewpoint of a current picture for inter-prediction of the current picture and restored images for inter-view prediction; determining at least one reference picture and reference block with respect to a current block of the current picture by using the determined at least one reference picture list; and performing at least one selected from inter-prediction and inter-view prediction on the current block by using the reference block.

Abstract translation: 提供了通过对多视点视频的每个视图图像执行帧间预测和视图间预测来对多视图视频进行编码和解码的方法。 一种对多视图视频进行预测编码的方法包括从第一和第二参考图像列表中确定至少一个参考图像列表，所述参考图像列表分别包括具有当前图像的视点的恢复图像，用于当前图像的帧间预测， 视野预测 通过使用所确定的至少一个参考图片列表来确定相对于当前图片的当前块的至少一个参考图片和参考块; 以及通过使用所述参考块来对当前块执行从帧间预测和帧间预测中选出的至少一个。

公开(公告)号：US20150086124A1

公开(公告)日：2015-03-26

申请号：US14394786

申请日：2013-04-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hak-sup Song ,  Jae-hwan Joo ,  Chan-yul Kim ,  Jong-bum Choi ,  Jae-hyun Kim ,  Jeong-hoon Park ,  Kyo-hyuk Lee

IPC: H04N19/154 ,  H04N19/176

CPC classification number: H04N19/154 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/198 ,  H04N19/61 ,  H04N19/86 ,  H04N19/96

Abstract: A method of determining an offset includes dividing a current image into a plurality of blocks, determining a category of pixels in each of the plurality of blocks based on values of neighboring pixels, determining an offset value for pixels belonging to the category, and adjusting the offset value based on characteristics of the category and a background pixel value of each of the pixels. The offset value is an average of differences between values of original images and restored images of pixels belonging to one category. The background pixel value is an average of values of pixels in a background pixel block to which the pixels belong among background pixel blocks divided to calculate a background pixel value.

Abstract translation: 确定偏移的方法包括：将当前图像划分为多个块，基于相邻像素的值来确定多个块中的每个块中的像素的类别，确定属于该类别的像素的偏移值，以及调整 基于类别的特性和每个像素的背景像素值的偏移值。 偏移值是原始图像的值与属于一个类别的像素的还原图像之间的差的平均值。 背景像素值是被划分的像素属于背景像素块的背景像素块中的像素的值的平均值，以计算背景像素值。