公开(公告)号：KR1020140146563A

公开(公告)日：2014-12-26

申请号：KR1020140148733

申请日：2014-10-29

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더

IPC: H04N19/117 ,  H04N19/51 ,  H04N19/186

CPC classification number: H04N19/523 ,  G06T3/4007 ,  H04N19/117 ,  H04N19/167 ,  H04N19/182 ,  H04N19/52 ,  H04N19/537 ,  H04N19/59 ,  H04N19/61 ,  H04N19/82 ,  H04N19/51 ,  H04N19/186

Abstract: Disclosed by the present invention is a method to interpolate an image by a subpixel unit by using a conversion-based interpolation filter. The disclosed image interpolating method generates the pixel value of at least one subpixel unit by: selecting a symmetrical interpolation filter of a symmetrical shape or an asymmetrical interpolation filter of an asymmetrical shape individually around an interpolation position according to the interpolation position of a subpixel unit among interpolation filters for generating the pixel value of at least one subpixel unit positioned between pixels of a pixel unit; and interpolating pixel values of pixels of the pixel unit by using the selected interpolation filter.

Abstract translation: 本发明公开了一种通过使用基于变换的内插滤波器通过子像素单元内插图像的方法。 所公开的图像内插方法通过以下方式产生至少一个子像素单元的像素值：通过根据子像素单元的插入位置，在插值位置上分别选择对称形状的对称内插滤波器或不对称形状的非对称内插滤波器 内插滤波器，用于生成位于像素单元的像素之间的至少一个子像素单元的像素值; 以及通过使用所选择的内插滤波器来内插像素单元的像素的像素值。

公开(公告)号：KR101464538B1

公开(公告)日：2014-11-25

申请号：KR1020090094050

申请日：2009-10-01

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더 ,  세레긴바딤 ,  쉬라코프니콜라이 ,  코로티프막심

IPC: H04N19/51

Abstract: 부호화되는 현재 부호화 단위에 대한 제 1 예측 부호화 단위를 생성하고, 제 1 예측 부호화 단위를 구성하는 각 픽셀과 적어도 하나의 주변 픽셀을 이용하여 제 1 예측 부호화 단위의 각 픽셀의 픽셀값을 변경함으로써 제 2 예측 부호화 단위를 생성하며, 현재 부호화 단위와 제 2 예측 부호화 단위의 차이값을 부호화함으로써 영상의 예측 효율을 향상시키는 영상의 부호화 방법 및 장치, 그 복호화 방법 및 장치가 개시된다.

公开(公告)号：KR1020140085387A

公开(公告)日：2014-07-07

申请号：KR1020140054391

申请日：2014-05-07

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더

IPC: H04N19/184

CPC classification number: H04N19/122 ,  G06F17/147 ,  H04N19/115 ,  H04N19/124 ,  H04N19/126 ,  H04N19/136 ,  H04N19/146 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/184 ,  H04N19/34 ,  H04N19/42 ,  H04N19/44 ,  H04N19/45 ,  H04N19/60 ,  H04N19/625

Abstract: Provided are a method for encoding a video which is capable of adjusting a range of encoded output data to control a bit depth in a process of restoring encoded samples and a method for decoding a video which is capable of preventing an overflow of output data in every specific decoding stage. The method for decoding a video includes the steps of: parsing and restoring conversion factors quantized by each block of an image from a received bit stream; inverse quantizing the quantized conversion factors to restore the conversion factors of a first bit depth or less; and one-dimensional inverse converting and inverse scaling the conversion factors to restore samples of a second bit depth or less.

Abstract translation: 提供了一种编码视频的方法，该视频能够调整编码的输出数据的范围以在恢复编码的样本的过程中控制位深度，以及用于对视频进行解码的方法，该视频能够防止每一个中输出数据的溢出 具体解码阶段。 用于对视频进行解码的方法包括以下步骤：从接收到的比特流解析并恢复由图像的每个块量化的转换因子; 逆量化量化的转换因子以恢复第一位深度或更小的转换因子; 和一维逆转换和逆变换转换因子以恢复第二位深度或更小的采样。

公开(公告)号：KR1020140085385A

公开(公告)日：2014-07-07

申请号：KR1020140054358

申请日：2014-05-07

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더

IPC: H04N19/117

CPC classification number: H04N19/523 ,  G06T3/4007 ,  H04N19/117 ,  H04N19/167 ,  H04N19/182 ,  H04N19/52 ,  H04N19/537 ,  H04N19/59 ,  H04N19/61 ,  H04N19/82

Abstract: Disclosed is a method for interpolating an image to a subpixel unit using a conversion-based interpolation filter. The method includes the steps of: separately selecting a symmetrical interpolation filter having a symmetrical form or an asymmetric interpolation filter having an asymmetric form based on an interpolation location according to the interpolation location of the subpixel unit in interpolation filters to generate a pixel value of at least one subpixel unit located among pixel unit pixels; interpolating pixel values of the pixel unit pixels using the selected interpolation filter; and generating the pixel value of at least one subpixel unit.

Abstract translation: 公开了一种使用基于变换的内插滤波器将图像内插到子像素单元的方法。 该方法包括以下步骤：根据内插滤波器中的子像素单元的内插位置，分别选择具有对称形式的对称内插滤波器或具有基于内插位置的非对称形式的非对称内插滤波器，以产生像素值 位于像素单位像素中的至少一个子像素单元; 使用所选择的内插滤波器内插像素单位像素的像素值; 以及生成至少一个子像素单元的像素值。

公开(公告)号：KR1020140075657A

公开(公告)日：2014-06-19

申请号：KR1020140054355

申请日：2014-05-07

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더

IPC: H04N19/117 ,  H04N19/14

CPC classification number: H04N19/463 ,  G06T5/001 ,  H04N19/117 ,  H04N19/137 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/189 ,  H04N19/44 ,  H04N19/50 ,  H04N19/625 ,  H04N19/85 ,  H04N19/89 ,  H04N19/90

Abstract: The present invention provides a video encoding method, an apparatus thereof, a video decoding method and an apparatus thereof for generating a restored image with a minimized difference from an original image. Disclosed in the present invention is the video decoding method which parses the offset aggregation information of the current block from received bitstream, restores offset types and offset values among the offset parameters of the current block based on the offset aggregation information, and adjusts pixel values of a restored pixel by offset by selecting an offset value, from the offset values, corresponding to an edge class or a pixel value band of the restored pixel determined based on an edge type or a pixel value band of the current block represented by the offset type.

Abstract translation: 本发明提供一种视频编码方法，其装置，视频解码方法及其装置，用于产生与原始图像的最小差异的恢复图像。 在本发明中公开了一种视频解码方法，其从接收到的比特流解析当前块的偏移聚合信息，基于偏移聚合信息恢复当前块的偏移参数中的偏移类型和偏移值，并且调整像素值 通过从偏移值中选择对应于基于由偏移类型表示的当前块的边缘类型或像素值带确定的恢复像素的边缘类别或像素值带的偏移值来选择偏移值的恢复像素 。

公开(公告)号：KR1020140071306A

公开(公告)日：2014-06-11

申请号：KR1020140058652

申请日：2014-05-15

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더 ,  세레긴바딤 ,  쉬라코프니콜라이 ,  코로티프막심

IPC: H04N19/85

CPC classification number: H04N19/85 ,  H04N19/13 ,  H04N19/182 ,  H04N19/184 ,  H04N19/30

Abstract: A method for encoding a video is disclosed. The method for encoding a video includes the following steps: determining encoding units with a hierarchical structure using information indicating whether the encoding units parsed from a received bitstream are split or not; acquiring a first prediction value of a current encoding unit using surrounding pixels of the current encoding unit from the determined hierarchical coding units; acquiring a second prediction value of each pixel adjacent to the top and left boundaries of the current encoding unit using at least one surrounding pixel adjacent to each pixel; and acquiring a final prediction value of the current encoding unit using the first and second prediction values.

Abstract translation: 公开了一种视频编码方法。 用于编码视频的方法包括以下步骤：使用指示从接收的比特流解析的编码单元是否分裂的信息来确定具有分层结构的编码单元; 从所确定的分层编码单元中获取当前编码单元的周围像素的当前编码单元的第一预测值; 使用与每个像素相邻的至少一个周围像素来获取与当前编码单元的顶部和左边界相邻的每个像素的第二预测值; 以及使用所述第一和第二预测值获取所述当前编码单元的最终预测值。

公开(公告)号：KR101385957B1

公开(公告)日：2014-04-17

申请号：KR1020070099883

申请日：2007-10-04

Applicant: 삼성전자주식회사

Inventor： 코로티프막심 ,  알쉰알렉산더 ,  알쉬나엘레나 ,  세레긴바딤 ,  네스테로바예카테리나

IPC: H04N19/124 ,  H04N19/60

CPC classification number: H04N19/18 ,  H04N19/126 ,  H04N19/14 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46

Abstract: 본 발명의 양자화 계수 조정 방법은, 입력된 영상 데이터 스트림으로부터 계수들의 통계적 특성값 및 양자화된 계수를 추출하고, 계수들의 통계적 특성값에 의존하는 계수들의 통계적 분포를 이용하여, 블록 내의 각각의 픽셀 위치에 대한 계수 조정치를 결정하여, 각각의 픽셀 위치에 대한 계수 조정치를 동일 픽셀 위치의 계수들에 더함으로써 계수를 조정하여, 복호화기에서 양자화 계수를 조정함으로써 고압축 환경에서 압축 효율을 향상시킬 수 있다.
H.264, 양자화 계수, 양자화 계수 조정, 오프셋 조정

公开(公告)号：KR1020130138701A

公开(公告)日：2013-12-19

申请号：KR1020130066797

申请日：2013-06-11

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더

IPC: H04N19/00 ,  H04N9/64

CPC classification number: H04N19/13 ,  H04N19/117 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/82 ,  H04N19/86 ,  H04N19/91

Abstract: 본발명은, 원본영상과의오차가최소화되는복원영상을생성하기위한비디오부호화방법및 그장치, 비디오복호화방법및 그장치를제안한다. 수신된비트스트림의슬라이스헤더로부터현재슬라이스에대한슬라이스 SAO (Sample Adaptive Offset) 파라미터를획득하고, 슬라이스 SAO 파라미터중에서현재슬라이스의루마성분을위한루마 SAO 사용정보및 크로마성분들을위한크로마 SAO 사용정보를획득하여, 루마 SAO 사용정보에기초하여현재슬라이스의루마성분에대해 SAO 조정을수행할지여부를결정하고, 크로마 SAO 사용정보에기초하여현재슬라이스의제1 크로마성분및 제2 크로마성분에대해 SAO 조정을수행할지여부를동일하게결정하는 SAO 조정을수반하는비디오복호화방법이개시된다.

Abstract translation: 本发明提出了一种用于对视频进行编码和解码以产生其中与原始图像的错误最小化的恢复图像的方法和装置。 用于解码本发明的视频的方法包括以下步骤：从接收到的比特流的片头中获取当前片的切片样本自适应偏移（SAO）参数; 在片SAO参数中获取亮度分量的亮度SAO使用信息和色度SAO使用信息用于当前片的色度分量; 基于所述亮度SAO使用信息确定是否对所述切片的亮度分量进行SAO调整; 并且基于色度SAO使用信息，相同地确定是否对当前切片的第一色度分量和第二色度分量执行SAO调整。 （22）SAO参数获取单元;（24）SAO确定单元;（26）SAO调整单元

公开(公告)号：KR1020130050896A

公开(公告)日：2013-05-16

申请号：KR1020120125711

申请日：2012-11-07

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더

IPC: H04N19/60 ,  H04N19/132 ,  H04N19/184

CPC classification number: H04N19/00078 ,  H04N19/124 ,  H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/60

Abstract: PURPOSE: An inverse conversion method for clipping data of inverse quantization and inverse conversion in a video decoding process and a device thereof are provided to clip input data of first inverse conversion and second inverse conversion for storing intermediate data and output data, thereby preventing overflow of registers. CONSTITUTION: An inverse conversion device generates conversion coefficients by inverse quantization of quantized conversion coefficients of a received current block and clips the generated conversion coefficients within ranges of a first maximal value and a first minimal value which are determined based on a size of the current block(41,43). The inverse conversion device performs first inverse conversion for a clipped conversion coefficient. The inverse conversion device clips generated intermediate data within ranges of a second maximal value and a second minimal value which are determined based on the size of the current block and internal bit depth(45). The inverse conversion device performs second inverse conversion for the intermediate data(47). [Reference numerals] (41) Receive quantized conversion coefficients; (43) Generate conversion coefficients by dequantization and clip the generated conversion coefficients into a determined first maximum value based on a block size; (45) Perform first dequantization for the clipped conversion coefficients and clip intermediate data generated by the first dequantization into a determined second maximum value based on the block size and an internal bit depth; (47) Perform second dequantization for the clipped intermediate data; (AA) Start; (BB) End

Abstract translation: 目的：提供一种用于在视频解码过程中削减逆量化和逆转换的数据的逆转换方法及其装置，用于剪辑用于存储中间数据和输出数据的第一反向转换和第二逆变换的输入数据，从而防止 寄存器。 构成：逆变换装置通过对接收到的当前块的量化转换系数进行逆量化来产生转换系数，并将生成的转换系数在基于当前块的大小确定的第一最大值和第一最小值的范围内剪切 （41,43）。 逆变换装置对剪切变换系数进行第一逆变换。 反转换装置在基于当前块的大小和内部位深度（45）确定的第二最大值和第二最小值的范围内剪切所生成的中间数据。 逆变换装置对中间数据（47）进行第二逆变换。 （41）接收量化后的转换系数; （43）通过去量化生成转换系数，并且基于块大小将生成的转换系数剪切成确定的第一最大值; （45）基于块大小和内部位深度，对剪辑的转换系数执行第一去量化并将由第一去量化生成的中间数据剪辑为确定的第二最大值; （47）对剪切的中间数据执行第二次反量化; （AA）开始; （BB）结束

公开(公告)号：KR1020130002294A

公开(公告)日：2013-01-07

申请号：KR1020120070239

申请日：2012-06-28

Applicant: 삼성전자주식회사

Inventor： 알쉬나엘레나 ,  알쉰알렉산더

IPC: H04N19/117 ,  H04N19/523 ,  H04N19/82

CPC classification number: H04N19/523 ,  G06T3/4007 ,  H04N19/117 ,  H04N19/167 ,  H04N19/182 ,  H04N19/52 ,  H04N19/537 ,  H04N19/59 ,  H04N19/61 ,  H04N19/82

Abstract: PURPOSE: A method and an apparatus for interpolating an image using an asymmetric interpolation filter are provided to generate a sub pixel unit by interpolating pixel unit pixels through image interpolation. CONSTITUTION: An image interpolation apparatus selects a symmetric interpolation filter or an asymmetric interpolation filter according to an interpolation location of a sub pixel. The image interpolation apparatus interpolates pixel values of image pixel by using the selected interpolation filter(83). The pixel value of at least one sub pixel unit is generated. [Reference numerals] (81) Selecting a symmetrical interpolation filter or a non-symmetrical interpolation filter according to an interpolation location of a sub-pixel unit pixel from interpolation filters for the sub-pixel unit pixel; (83) Generating a pixel value of one or more sub-pixel unit pixels by interpolating pixel values of image pixel by using a selected interpolation filter; (AA) Start; (BB) End

Abstract translation: 目的：提供一种使用非对称内插滤波器内插图像的方法和装置，以通过图像插值内插像素单位像素来生成子像素单元。 构成：图像插值装置根据子像素的插值位置选择对称内插滤波器或非对称内插滤波器。 图像插值装置使用所选择的内插滤波器（83）内插图像像素的像素值。 生成至少一个子像素单元的像素值。 （附图标记）（81）根据子像素单位像素的内插滤波器，根据子像素单位像素的内插位置选择对称内插滤波器或非对称内插滤波器; （83）通过使用所选择的内插滤波器来内插图像像素的像素值来生成一个或多个子像素单位像素的像素值; （AA）开始; （BB）结束