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    • 5. 发明公开
    • 외부 메모리 접근의 대역폭을 감소시키는 LCU단위의 인-루프 필터링 장치 및 방법
    • 用于减少外部存储器访问带宽的最大编码单元进行环路滤波的装置和方法
    • KR1020140116992A
    • 2014-10-07
    • KR1020130031370
    • 2013-03-25
    • 삼성전자주식회사광운대학교 산학협력단
    • 김두현심동규김도형송준호유은경이시화조현호유종훈
    • H04N19/00
    • H04N19/86H04N19/423H04N19/82
    • The present invention relates to an apparatus and a method for in-loop filtering based on a largest coding unit (LCU) to reduce an external memory access bandwidth. The apparatus for in-loop filtering according to an embodiment includes: an external memory to store decoded frames; an internal memory to store pixels used for a deblocking filtering and a sample adaptive offset filtering; a horizontal deblocking filter to perform the deblocking filtering on input pixels in a horizontal direction with respect to vertical edge boundaries within an input area by using a largest coding unit (LCU) and pixels adjacent to the LCU among the pixels stored in the internal memory; a vertical deblocking filter to perform the deblocking filtering in a vertical direction with respect to horizontal edge boundaries within the input area by using the pixels to which the deblocking filtering is applied in the horizontal direction; and a sample adaptive offset filter to perform the sample adaptive offset filtering using the pixels to which the deblocking filtering is applied in the horizontal direction within the input area.
    • 本发明涉及一种基于最大编码单元(LCU)进行环路滤波的装置和方法,以减少外部存储器存取带宽。 根据实施例的用于环路滤波的装置包括:用于存储解码帧的外部存储器; 用于存储用于去块滤波和采样自适应偏移滤波的像素的内部存储器; 水平去块滤波器,通过在存储在内部存储器中的像素中使用最大编码单元(LCU)和与LCU相邻的像素来执行相对于输入区域内的垂直边缘边界在水平方向上的输入像素上的去块滤波; 垂直去块滤波器,通过使用在水平方向上施加去块滤波的像素,在垂直方向上相对于输入区域内的水平边缘边界进行去块滤波; 以及采样自适应偏移滤波器,以使用在输入区域内在水平方向上施加去块滤波的像素来执行采样自适应偏移滤波。
    • 6. 发明公开
    • 다중 계층 비디오의 계층 간 참조 장치 및 방법
    • 用于多层视频的层间参考的装置和方法
    • KR1020140038323A
    • 2014-03-28
    • KR1020130111098
    • 2013-09-16
    • 광운대학교 산학협력단
    • 유은경남정학심동규
    • H04N19/50H04N19/00
    • H04N19/573H04N19/117H04N19/33H04N19/59
    • Disclosed is an apparatus and a method for inter-layer reference of a multi-layer video. The apparatus for inter-layer reference of a multi-layer video comprises: a first reference image generating unit for generating a first reference image base on reference information of reference layers; a partial image generating unit for generating a partial image by dividing the first reference image based on division information included in the reference information of the reference layers; and a second reference image generating unit for generating a second reference image by adjusting the partial information based on the partial information respectively included in the partial information. [Reference numerals] (100) First reference image generating unit; (200) Partial image generating unit; (210) First reference image load unit; (220) Division information load unit; (230) First reference image dividing unit; (300) Second reference image generating unit; (310) Partial information load unit; (320) Partial image adjusting unit; (AA) Reference information of reference layers; (BB) First reference image; (CC) Divisiong information; (DD) Partial image; (EE) Partial information; (FF) Second reference image
    • 公开了一种用于多层视频的层间参考的装置和方法。 用于多层视频的层间参考的装置包括:第一参考图像生成单元,用于基于参考层的参考信息产生第一参考图像; 部分图像生成单元,用于通过基于包括在参考层的参考信息中的分割信息来划分第一参考图像来生成部分图像; 以及第二参考图像生成单元,用于通过基于分别包括在部分信息中的部分信息来调整部分信息来生成第二参考图像。 (附图标记)(100)第一参考图像生成单元; (200)部分图像生成单元; (210)第一参考图像加载单元; (220)分部信息负载单元; (230)第一参考图像分割单元; (300)第二参考图像生成单元; (310)部分信息负载单元; (320)部分图像调整单元; (AA)参考层的参考信息; (BB)第一参考图像; (CC)分部信息; (DD)部分图像; (EE)部分资料; (FF)第二参考图像
    • 7. 发明公开
    • 적응적 깊이 정보 선택 및 수행에 대한 디블록킹 필터링 방법 및 장치
    • 自适应深度信息和处理去阻塞滤波的方法和装置
    • KR1020130070215A
    • 2013-06-27
    • KR1020110137431
    • 2011-12-19
    • 광운대학교 산학협력단
    • 황태진유은경조현호심동규
    • H04N19/70H04N19/86H04N19/174
    • H04N19/86H04N19/174
    • PURPOSE: A deblocking filtering method for selection and performance of adaptive depth information and a device thereof are provided to allow an LCU(Largest Coding Unit) deblocking filter to include depth information, thereby increasing efficiency of deblocking filtering for a block distortion phenomenon. CONSTITUTION: A deblocking filter depth information determination unit determines whether or not depth information of deblocking filtering performance is applied to any step(401). A deblocking filter performance unit for a perpendicular boundary performs deblocking filtering for the perpendicular boundary of a deblocking filter(402). A deblocking filter performance unit for a horizontal boundary performs the deblocking filtering for a horizontal boundary of the deblocking filter(403). [Reference numerals] (401) Determine deblocking filter depth information; (402) Perform deblocking filtering for a vertical boundary; (403) Perform deblocking filtering for a horizontal boundary; (AA) Start; (BB) End
    • 目的:提供用于选择和执行自适应深度信息的解块滤波方法及其装置,以允许LCU(最大编码单元)去块滤波器包括深度信息,从而提高块失真现象的去块滤波效率。 构成:去块滤波器深度信息确定单元确定去块滤波性能的深度信息是否应用于任何步骤(401)。 用于垂直边界的去块滤波器性能单元为解块滤波器(402)的垂直边界执行解块滤波。 用于水平边界的去块滤波器性能单元执行去块滤波器(403)的水平边界的去块滤波。 (附图标记)(401)确定去块滤波器深度信息; (402)对垂直边界进行去块滤波; (403)对水平边界进行去块滤波; (AA)开始; (BB)结束
    • 8. 发明公开
    • 문맥 기반의 샘플 적응적 오프셋 필터 방향 추론 및 적응적 선택에 대한 비디오 방법 및 장치
    • 视频编解码器中基于上下文的自适应方向选择方法与装置
    • KR1020130070195A
    • 2013-06-27
    • KR1020110137406
    • 2011-12-19
    • 광운대학교 산학협력단
    • 유은경조현호남정학심동규
    • H04N7/24
    • H04N19/82
    • PURPOSE: A method for context based SAO(Sample Adaptive Offset) filter direction estimation and adaptive selection in a video and a device thereof are provided to adaptively select a filter direction by considering a detailed edge direction corresponding to a feature of a current decoding object image, thereby improving subjective and objective image quality. CONSTITUTION: A context based filter selection parameter extraction unit(503) brings parameter information for a restored image and finds an edge direction. A filter direction determination unit(504) determines an SAO filter direction in a group for a current block or an area corresponding to kinds and a value of context which is parsed from an entropy decoding unit(501) and image feature information extracted in the context based filter selection parameter extraction unit. An SAO execution unit(505) comprises a pixel set by using the determined filter direction and performs SAO filtering for the pixel set. [Reference numerals] (501) Entropy decoding unit; (502) Pixel restoration unit; (503) Context based filter selection parameter extraction unit; (504) Filter direction determination unit; (505) SAO execution unit; (506) Image output unit
    • 目的:提供一种用于视频及其设备中的基于上下文的SAO(样本自适应偏移)滤波器方向估计和自适应选择的方法,以通过考虑与当前解码对象图像的特征相对应的详细边缘方向来自适应地选择滤波器方向 从而提高主观和客观的画质。 构成:基于上下文的滤波器选择参数提取单元(503)为恢复的图像提供参数信息并找到边缘方向。 滤波器方向确定单元(504)确定用于当前块的组中的SAO滤波器方向或对应于从熵解码单元(501)解析的上下文的种类和值的区域以及在上下文中提取的图像特征信息 基于滤波器的选择参数提取单元。 SAO执行单元(505)包括通过使用所确定的滤波器方向的像素集合,并针对像素集执行SAO滤波。 (附图标记)(501)熵解码单元; (502)像素恢复单元; (503)基于上下文的滤波器选择参数提取单元; (504)滤波器方向确定单元; (505)SAO执行单位; (506)图像输出单元