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1. 发明公开

EP3739887A1 ENCODING METHOD AND APPARATUS THEREFOR, AND DECODING METHOD AND APPARATUS THEREFOR 审中-实审
公开(公告)号：EP3739887A1
公开(公告)日：2020-11-18
申请号：EP18898883.6
申请日：2018-03-29
申请人： Samsung Electronics Co., Ltd.
发明人： CHOI, Woong-il , LEE, Sun-il , CHOI, Ki-ho
IPC分类号： H04N19/86 , H04N19/122 , H04N19/117 , H04N19/105 , H04N19/176
摘要： Provided is a video decoding method of applying a deblocking filter to neighboring pixels adjacent to a boundary of a current block, the video decoding method including selecting a deblocking filter to be applied to the neighboring pixels from among a plurality of deblocking filters according to pixel values of the neighboring pixels and a size of the current block, and applying the selected deblocking filter to the neighboring pixels, wherein the plurality of deblocking filters include three or more deblocking filters having different ranges of neighboring pixels to which deblocking filtering is applied.

2. 发明公开

EP3389274A1 VIDEO DECODING METHOD AND APPARATUS BY CHROMA-MULTI-TRANSFORM, AND VIDEO ENCODING METHOD AND APPARATUS BY CHROMA-MULTI-TRANSFORM 审中-公开
公开(公告)号：EP3389274A1
公开(公告)日：2018-10-17
申请号：EP17747804.7
申请日：2017-02-03
申请人： Samsung Electronics Co., Ltd.
发明人： CHOI, Ki-ho , PARK, Min-soo , ALSHIN, Alexander , ALSHINA, Elena
IPC分类号： H04N19/186 , H04N19/176 , H04N19/122
CPC分类号： H04N19/122 , H04N19/159 , H04N19/176 , H04N19/186
摘要： Provided are a method and apparatus for performing transformation and inverse transformation on a chroma block by using a variable transform kernel, during video encoding and decoding processes. A video decoding method includes: obtaining, from a bitstream, chroma multi-transform kernel information indicating whether a chroma transform kernel for inverse transformation of a chroma block is determined to be among a plurality of chroma transform kernels; while determining whether the chroma transform kernel is determined to be among the plurality of chroma transform kernels according to the chroma multi-transform kernel information, determining whether to determine the chroma transform kernel by using a luma transform kernel; and performing inverse transformation on the chroma block by using the chroma transform kernel.

3. 发明公开

EP3840379A1 VIDEO DECODING METHOD AND DEVICE, AND ENCODING METHOD THEREFOR 无效
公开(公告)号：EP3840379A1
公开(公告)日：2021-06-23
申请号：EP21156504.9
申请日：2016-11-24
申请人： Samsung Electronics Co., Ltd.
发明人： LEE, Jin-young , CHOI, Ki-ho , KIM, Chan-yul , WON, Kwang-hyun , PIAO, Yin-ji , LEE, Sun-il
IPC分类号： H04N19/129 , H04N19/176 , H04N19/70 , H04N19/174
摘要： Video coding techniques are provided, including: determining a shape of one or more scanning units comprised in a current picture, the one or more scanning units consisting of a predetermined number of adjacent largest coding units from among a plurality of largest coding units split from the current picture; generating shape information indicating a number of largest coding units in a single row in the scanning unit and a number of largest coding units in a single column in the scanning unit, wherein a scanning unit consists of NxM largest coding units, wherein at least one of N and M is larger than 1, N indicates the number of largest coding units in a single row in the scanning unit, and M indicate the number of largest coding units in a single column in the scanning unit; determining a processing order of one or more scanning units of the current picture, as an order of performing processing from the lower scanning unit to the upper scanning unit; determining coding units by splitting at least one of a height and a width of the largest coding unit among largest coding units comprised in the one or more scanning units; and determining, as a processing order of the coding units in the largest coding unit, a first order of performing processing in a rightward direction or a second order of performing processing in a leftward direction.

4. 发明公开

EP3306930A1 ENCODING DEVICE, DECODING DEVICE, AND ENCODING AND DECODING METHOD THEREOF 审中-公开
标题翻译：编码装置，解码装置以及编码和解码方法
公开(公告)号：EP3306930A1
公开(公告)日：2018-04-11
申请号：EP16844583.1
申请日：2016-07-26
申请人： Samsung Electronics Co., Ltd.
发明人： PIAO, Yin-ji , CHOI, Ki-ho
IPC分类号： H04N19/18 , H04N19/645 , H04N19/174 , H04N19/46 , H04N19/91 , H04N19/159
CPC分类号： H04N19/18 , H04N19/119 , H04N19/129 , H04N19/167 , H04N19/70
摘要： An encoding device for encoding a bit stream including an image frame may include an encoder configured to determine a position of a pixel having a last non-zero coefficient in a conversion coefficient block constituting the image frame with reference to a predetermined pixel of the conversion coefficient block, identify a sub-block including the last non-zero coefficient, among a plurality of sub-blocks constituting the conversion coefficient block, convert a position of the last non-zero coefficient determined with reference to the predetermined pixel of the conversion coefficient block into a position with reference to a predetermined pixel of the identified sub-block, and encode the sub-block including the last non-zero coefficient and the converted position of the last non-zero coefficient.
摘要翻译：用于对包括图像帧的比特流进行编码的编码设备可以包括：编码器，被配置为参考转换系数的预定像素，确定具有最后非零系数的像素在构成图像帧的转换系数块中的位置在构成转换系数块的多个子块中识别包括最后一个非零系数的子块，将参考转换系数块的预定像素确定的最后一个非零系数的位置参考所识别的子块的预定像素，并且对包括最后非零系数和最后非零系数的转换位置的子块进行编码。

5. 发明公开

EP3606078A1 VIDEO DECODING METHOD AND APPARATUS USING MULTI-CORE TRANSFORM, AND VIDEO ENCODING METHOD AND APPARATUS USING MULTI-CORE TRANSFORM 无效
公开(公告)号：EP3606078A1
公开(公告)日：2020-02-05
申请号：EP18827632.3
申请日：2018-07-03
申请人： Samsung Electronics Co., Ltd.
发明人： CHOI, Ki-ho , PARK, Min-soo , ALSHINA, Elena
IPC分类号： H04N19/625 , H04N19/61 , H04N19/176 , H04N19/186
摘要： Provided are a method and apparatus for performing transformation and inverse transformation on a current block by using multi-core transform kernels in video encoding and decoding processes. According to an aspect of the present disclosure, a video decoding method may include obtaining, from a bitstream, multi-core transformation information indicating whether multi-core transformation kernels are to be used according to a size of a current block; obtaining horizontal transform kernel information and vertical transform kernel information from the bitstream when the multi-core transformation kernels are used according to the multi-core transformation information; determining a horizontal transform kernel for the current block according to the horizontal transform kernel information; determining a vertical transform kernel for the current block according to the vertical transform kernel information; and performing inverse transformation on the current block by using the horizontal transform kernel and the vertical transform kernel.

6. 发明公开

EP3355585A1 IMAGE ENCODING METHOD AND DEVICE, AND IMAGE DECODING METHOD AND DEVICE 审中-公开
公开(公告)号：EP3355585A1
公开(公告)日：2018-08-01
申请号：EP16868903.2
申请日：2016-11-24
申请人： Samsung Electronics Co., Ltd.
发明人： LEE, Jin-young , CHOI, Ki-ho , LEE, Sun-il , PIAO, Yin-ji
IPC分类号： H04N19/513 , H04N19/107 , H04N19/105 , H04N19/139 , H04N19/44 , H04N19/159 , H04N19/119
CPC分类号： H04N19/105 , H04N19/107 , H04N19/119 , H04N19/139 , H04N19/159 , H04N19/513 , H04N19/533
摘要： Provided is a method of decoding motion information, in which information for determining motion-related information includes spatial information and temporal prediction candidate, the spatial information indicates a direction of a spatial prediction candidate used in sub-units, from among spatial prediction candidates at a left side and upper sides of a current prediction unit, and the temporal information indicates a reference prediction unit of a previous picture, which is used for predicting the current prediction unit. Also, provided is an encoding or decoding apparatus executing an encoding or decoding method.

7. 发明公开

EP3352460A1 VIDEO DECODING METHOD AND DEVICE, AND ENCODING METHOD AND DEVICE THEREFOR 审中-公开
公开(公告)号：EP3352460A1
公开(公告)日：2018-07-25
申请号：EP16868919.8
申请日：2016-11-24
申请人： Samsung Electronics Co., Ltd.
发明人： LEE, Jin-young , CHOI, Ki-ho , KIM, Chan-yul , WON, Kwang-hyun , PIAO, Yin-ji , LEE, Sun-il
IPC分类号： H04N19/129 , H04N19/46 , H04N19/172 , H04N19/11 , H04N19/14 , H04N19/44
CPC分类号： H04N19/129 , H04N19/14 , H04N19/157 , H04N19/174 , H04N19/176 , H04N19/70
摘要： Provided are a video decoding method and a video decoding apparatus capable of performing the video decoding method including receiving a bitstream of an encoded video; obtaining, from the bitstream, shape information of one or more scanning units each consisting of a predetermined number of adjacent largest coding units from among a plurality of largest coding units split from a picture; determining a shape of the one or more scanning units, based on the obtained shape information; obtaining, from the bitstream, processing order information of the one or more scanning units of a current picture, and processing order information of largest coding units included in the one or more scanning units; determining a processing order of the one or more scanning units included in the current picture, based on the processing order information of the one or more scanning units; determining a processing order of largest coding units included in each of the one or more scanning units, based on the processing order information of largest coding units included in the one or more scanning units; and decoding a plurality of largest coding units included in the current picture according to the determined processing order of the one or more scanning units and the determined processing order of largest coding units included in each of the one or more scanning units.

8. 发明公开

EP3293975A1 DEVICE AND METHOD FOR ENTROPY ENCODING AND DECODING 审中-公开
标题翻译： ENTROPY编码和解码的装置和方法
公开(公告)号：EP3293975A1
公开(公告)日：2018-03-14
申请号：EP16844580.7
申请日：2016-07-25
申请人： Samsung Electronics Co., Ltd.
发明人： PIAO, Yin-ji , CHOI, Ki-ho
IPC分类号： H04N19/91 , H04N19/105 , H04N19/86 , H04N19/119 , H04N19/44
CPC分类号： H04N19/91 , H04N19/105 , H04N19/119 , H04N19/13 , H04N19/157 , H04N19/18 , H04N19/44 , H04N19/70 , H04N19/865
摘要： An entropy encoding device and method, and an entropy decoding device and method are disclosed. The entropy encoding method comprises the steps of: dividing a transform unit into a plurality of zones, and dividing each of the plurality of zones into sub zones; setting, as the first value, the value of the last zone flag, in which a sub zone including a valid transform coefficient among the plurality of zones is included, and setting, as the second value, the value of a zone flag of the remaining zones; setting, as the first value, the value of a sub zone flag of the divided sub zones having the valid transform coefficient, and setting, as the second value, a value of a sub zone flag of the divided sub zones which do not include the valid transform coefficient; determining a preset coefficient coding scheme among a plurality of coefficient coding schemes on the basis of the zone flag and the sub zone flag; encoding a coefficient included in a sub zone on the basis of the determined coefficient coding scheme; and transmitting data on the zone flag, the sub zone flag, and the encoded coefficient.
摘要翻译：公开了熵编码设备和方法，以及熵解码设备和方法。熵编码方法包括以下步骤：将变换单元划分成多个区域，并将多个区域中的每一个划分为子区域; 将包括多个区域中的包含有效变换系数的子区域的最后区域标志的值设置为第一值，并且将剩余的区域标志的值设置为第二值区; 将具有有效变换系数的分割子区域的子区域标志的值设置为第一值，并且将不包括该分割子区域的子区域标志的值设置为第二值有效变换系数; 基于所述区域标志和所述子区域标志，确定多个系数编码方案中的预设系数编码方案; 基于所确定的系数编码方案对包括在子区中的系数进行编码; 并在区域标志，子区域标志和编码系数上发送数据。

9. 发明公开

EP3276957A1 IMAGE ENCODING METHOD AND DEVICE FOR SAMPLE VALUE COMPENSATION AND IMAGE DECODING METHOD AND DEVICE FOR SAMPLE VALUE COMPENSATION 审中-公开
标题翻译：用于样本值补偿的图像编码方法和装置以及用于样本值补偿的图像解码方法和装置
公开(公告)号：EP3276957A1
公开(公告)日：2018-01-31
申请号：EP15891967.0
申请日：2015-11-12
申请人： Samsung Electronics Co., Ltd.
发明人： CHOI, Ki-ho , ALSHINA, Elena
IPC分类号： H04N19/00 , H04N19/182
CPC分类号： H04N19/136 , H04N19/117 , H04N19/182 , H04N19/593 , H04N19/82
摘要： The present disclosure provides an image encoding method and apparatus and an image decoding method and apparatus for generating a reconstructed image having a minimized error between an original image and the reconstructed image at a high bit depth and a high bit rate.
The image decoding method includes parsing offset values and an offset type from a bitstream; parsing a class based on the offset type from the bitstream; selecting a plurality of pixels from among pixels adjacent to a reconstructed pixel, based on the class, and calculating a reference value based on sample values of the plurality of pixels; determining a category based on a magnitude of a difference value between the reference value and a sample value of the reconstructed pixel; selecting an offset value from among the offset values, the offset value corresponding to the category; and compensating for the sample value of the reconstructed pixel by using the selected offset value.
摘要翻译：本公开提供了一种图像编码方法和装置以及图像解码方法和装置，用于以高比特深度和高比特率来生成原始图像与重建图像之间的误差最小的重建图像。该图像解码方法包括从比特流解析偏移值和偏移类型; 根据来自比特流的偏移类型来解析类; 基于所述类别从与重构像素相邻的像素中选择多个像素，并基于所述多个像素的样本值计算参考值; 基于参考值和重建像素的样本值之间的差值的大小来确定类别; 从所述偏移值中选择偏移值，所述偏移值对应于所述类别; 并通过使用所选择的偏移值来补偿重构像素的样本值。

10. 发明公开

EP3203738A1 VIDEO ENCODING METHOD APPLYING MULTI-OFFSET SCHEME AND APPARATUS THEREFOR, AND VIDEO DECODING METHOD AND APPARATUS THEREFOR 审中-公开
标题翻译：应用多偏移方案的视频编码方法及其装置和视频解码方法及装置
公开(公告)号：EP3203738A1
公开(公告)日：2017-08-09
申请号：EP15854103.7
申请日：2015-09-24
申请人： Samsung Electronics Co., Ltd.
发明人： CHOI, Ki-ho , ALSHIN, Alexander , ALSHINA, Elena
IPC分类号： H04N19/117 , H04N19/176 , H04N19/174
CPC分类号： H04N19/117 , H04N19/136 , H04N19/139 , H04N19/174 , H04N19/176 , H04N19/192 , H04N19/439 , H04N19/46 , H04N19/61 , H04N19/82 , H04N19/86
摘要： A video decoding method comprises when a first offset method is applied to a current slice comprising a current block, adjusting an offset with respect to the current block, based on a first offset parameter of the current block; when the first offset method is applied to the current slice, determining whether to apply a second offset method to the current slice; when the second offset method is applied to the current slice, determining a second offset parameter of the current block; and applying an offset based on the second offset parameter to the current block to which the offset based on the first offset parameter is applied, wherein the first offset parameter and the second offset parameter comprise offset values for the current block.
摘要翻译：一种视频解码方法包括：当第一偏移方法被应用于包括当前块的当前片时，基于当前块的第一偏移参数调整相对于当前块的偏移; 当第一偏移方法应用于当前分片时，确定是否将第二偏移方法应用于当前分片; 当第二偏移方法应用于当前分片时，确定当前块的第二偏移参数; 以及基于第二偏移参数向基于第一偏移参数施加了偏移的当前块应用偏移，其中，第一偏移参数和第二偏移参数包括当前块的偏移值。

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