公开(公告)号：US20160309183A1

公开(公告)日：2016-10-20

申请号：US15101139

申请日：2014-12-26

Applicant: MEDIATEK INC.

Inventor： Yu-Chen SUN ,  Jungsun KIM ,  Tzu-Der CHUANG ,  Yi-Wen CHEN ,  Wang Lin LAI ,  Shan LIU ,  Yu-Wen HUANG

IPC: H04N19/593 ,  H04N19/186 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/593 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186

Abstract: A method and apparatus for color index coding of a block of video data using index prediction based on reconstructed neighboring pixels are disclosed. In one embodiment, color index encoding or decoding is applied to the current pixel indices by deriving index prediction from neighboring pixel indices of the reconstructed neighboring pixels. The reconstructed neighboring pixel values are first transformed into the neighboring pixel indices according to a quantization table to map between major color indices and major color values of the current block. The quantization table can be based on a major color table for the current block or can also be derived at a decoder side. The decoding process may reconstruct the current pixels by converting decoded current pixel indices to reconstructed current pixel values according to the quantization table or by directly copying the reconstructed neighboring pixel values indicated by decoded current pixel indices.

Abstract translation: 公开了使用基于重构的相邻像素的索引预测对视频数据块进行颜色索引编码的方法和装置。 在一个实施例中，通过从重建的相邻像素的相邻像素索引导出索引预测，将颜色索引编码或解码应用于当前像素索引。 首先根据量化表将重建的相邻像素值变换为相邻像素索引，以在主要颜色索引和当前块的主要颜色值之间进行映射。 量化表可以基于当前块的主色表或也可以在解码器侧得到。 解码处理可以通过根据量化表将解码的当前像素索引转换为重构的当前像素值或通过直接复制由解码的当前像素索引指示的重建的相邻像素值来重构当前像素。

公开(公告)号：US20160301938A1

公开(公告)日：2016-10-13

申请号：US15038599

申请日：2015-01-07

Applicant: MediaTek Inc.

Inventor： Yu-Chen SUN ,  Tzu-Der CHUANG ,  Yi-Wen CHEN ,  Yu-Wen HUANG

IPC: H04N19/186 ,  H04N19/93 ,  H04N19/182 ,  H04N19/463 ,  H04N19/176

Abstract: A method and apparatus for coding a block of video data using index or pixel value prediction including a copy-by-pattern-search mode are disclosed. According to the present invention, a current search pattern is determined based on one or more previous coded pixels. One or more predictors are derived according to the current search pattern for a current index or pixel value of a current pixel in the current block. Encoding or decoding is then applied to one or more following indices or pixel values of one or more following pixels including the current pixel using the predictors. In a simplest case, the one or more previous coded pixels correspond to a single previous coded pixel at the left side of the current pixel and the one or more following pixels contain only the current pixel.

Abstract translation: 公开了一种使用包括逐模式搜索模式的索引或像素值预测对视频数据块进行编码的方法和装置。 根据本发明，基于一个或多个以前的编码像素来确定当前搜索模式。 根据当前搜索模式导出当前块中当前像素的当前索引或像素值的一个或多个预测值。 然后，使用预测器将编码或解码应用于包括当前像素的一个或多个跟随像素的一个或多个跟随索引或像素值。 在最简单的情况下，一个或多个先前的编码像素对应于当前像素左侧的单个先前编码像素，并且一个或多个跟随像素仅包含当前像素。

公开(公告)号：US20160219261A1

公开(公告)日：2016-07-28

申请号：US14993372

申请日：2016-01-12

Applicant: MediaTek Inc.

Inventor： Yi-Wen CHEN ,  Jian-Liang LIN

IPC: H04N13/00 ,  H04N19/503 ,  H04N19/597 ,  H04N19/105 ,  H04N19/176 ,  H04N19/593

CPC classification number: H04N13/161 ,  H04N13/194 ,  H04N19/11 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/597

Abstract: A method and apparatus for video coding of a block of depth data or texture data using a simple Intra mode is disclosed. The method determines a prediction process selected from a prediction process list for the current block, where the prediction process list comprises at least a single sample mode and at least a simplified Intra prediction mode. If the prediction process selected for the current block corresponds to one single sample mode, encoding or decoding the current block using a single sample value derived from one or more previously decoded pixels for a whole current block. If the prediction process selected for the current block corresponds to one simplified Intra prediction mode, encoding or decoding the current block using Intra prediction signal derived according to a corresponding Intra prediction mode with no residual coding for the current block.

Abstract translation: 公开了一种使用简单的Intra模式对深度数据块或纹理数据块进行视频编码的方法和装置。 该方法确定从当前块的预测处理列表中选择的预测处理，其中预测处理列表至少包括单个采样模式和至少简化的帧内预测模式。 如果为当前块选择的预测过程对应于一个单个样本模式，则使用从整个当前块的一个或多个先前解码的像素导出的单个采样值对当前块进行编码或解码。 如果对于当前块选择的预测过程对应于一个简化的帧内预测模式，则使用根据对应的帧内预测模式导出的帧内预测信号对当前块进行编码或解码，而不对当前块进行残差编码。

公开(公告)号：US20160057453A1

公开(公告)日：2016-02-25

申请号：US14779655

申请日：2014-07-18

Applicant: MEDIATEK INC.

Inventor： Yu-Lin CHANG ,  Yi-Wen CHEN ,  Jian-Liang LIN

IPC: H04N19/597 ,  H04N19/513 ,  H04N19/187 ,  H04N19/30 ,  H04N19/176

Abstract: A method of three-dimensional video encoding and decoding that adaptively incorporates camera parameters in the video bitstream according to a control flag is disclosed. The control flag is derived based on a combination of individual control flags associated with multiple depth-oriented coding tools. Another control flag can be incorporated in the video bitstream to indicate whether there is a need for the camera parameters for the current layer. In another embodiment, a first flag and a second flag are used to adaptively control the presence and location of camera parameters for each layer or each view in the video bitstream. The first flag indicates whether camera parameters for each layer or view are present in the video bitstream. The second flag indicates camera parameter location for each layer or view in the video bitstream.

Abstract translation: 公开了一种根据控制标志自适应地将视频比特流中的摄像机参数并入的三维视频编码和解码方法。 基于与多个面向深度的编码工具相关联的单独控制标志的组合来导出控制标志。 可以将另一个控制标志并入视频位流中，以指示是否需要当前层的摄像机参数。 在另一个实施例中，使用第一标志和第二标志来自适应地控制视频比特流中的每个层或每个视图的相机参数的存在和位置。 第一个标志指示每个图层或视图的相机参数是否存在于视频比特流中。 第二个标志表示视频比特流中每一层或视图的相机参数位置。

公开(公告)号：US20150382020A1

公开(公告)日：2015-12-31

申请号：US14767459

申请日：2014-06-11

Applicant: MEDIATEK INC.

Inventor： Yi-Wen CHEN ,  Jian-Liang LIN

IPC: H04N19/597 ,  H04N19/51 ,  H04N19/00

CPC classification number: H04N19/597 ,  H04N19/00 ,  H04N19/433 ,  H04N19/51 ,  H04N19/513 ,  H04N19/573

Abstract: A method and apparatus for 3D coding to support fast bi-prediction having identical motion in the advanced residual prediction (ARP) are disclosed. Embodiment of the present invention use one or more aligned operations including data clipping and reference picture selection associated with motion vector derivation during residual predictor generation. When ARP mode is enabled, the residual prediction process for uni-prediction and bi-prediction perform same data clipping process and same reference picture selection process effectively. A single clipping operation or two clipping operations can be performed for both uni-prediction and bi-prediction.

Abstract translation: 公开了一种用于3D编码以支持在高级剩余预测（ARP）中具有相同运动的快速双预测的方法和装置。 本发明的实施例使用一个或多个对准的操作，包括在剩余预测器生成期间与运动矢量导出相关联的数据剪辑和参考图像选择。 当启用ARP模式时，用于单一预测和双重预测的残差预测过程有效地执行相同的数据剪辑处理和相同的参考图片选择处理。 可以对单一预测和双预测执行单个削波操作或两个削波操作。

公开(公告)号：US20150358600A1

公开(公告)日：2015-12-10

申请号：US14762881

申请日：2014-03-20

Applicant: MEDIATEK INC.

Inventor： Jian-Liang LIN ,  Yi-Wen CHEN

IPC: H04N13/00 ,  H04N19/51 ,  H04N19/176 ,  H04N19/597 ,  H04N19/96

CPC classification number: H04N13/161 ,  H04N19/176 ,  H04N19/51 ,  H04N19/597 ,  H04N19/61 ,  H04N19/96

Abstract: A method and apparatus of three-dimensional/multi-view coding using a candidate list including a second inter-view candidate in the candidate list for Merge mode, Skip mode or AMVP based (Advanced Motion Vector Prediction based) Inter mode are disclosed. The second inter-view candidate can be derived based on already coded or decoded texture data for the candidate list to include. For example, the second inter-view candidate can be determined from the motion information associated with a corresponding block in a reference view, where the corresponding block is located according to the location of the right-bottom neighboring block and a selected disparity vector. The right-bottom neighboring block is located across from a right-bottom corner of the current texture block. The second inter-view candidate can be inserted into the candidate list only when the number of previous available candidates is smaller than a pre-specified number.

Abstract translation: 公开了使用候选列表中包含合并模式，跳过模式或基于AMVP（基于高级运动矢量预测）模式的候选列表中的候选列表的三维/多视图编码的方法和装置。 可以基于已经编码或解码的候选列表的纹理数据来导出第二视角间候选。 例如，可以根据参考视图中与相应块相关联的运动信息来确定第二视角间候选，其中相应块根据右下相邻块的位置和选择的视差矢量而定位。 右下相邻块位于当前纹理块的右下角的两边。 仅当先前可用候选的数量小于预定数量时，才能将第二视频间候选者插入到候选列表中。

公开(公告)号：US20150350676A1

公开(公告)日：2015-12-03

申请号：US14433356

申请日：2013-09-18

Applicant: MEDIATEK INC.

Inventor： Yi-Wen CHEN ,  Jian-Liang LIN ,  Yu-Wen HUANG

IPC: H04N19/597 ,  H04N19/426 ,  H04N19/115 ,  H04N19/15 ,  H04N19/176 ,  H04N19/33 ,  H04N19/13

CPC classification number: H04N19/597 ,  H04N19/115 ,  H04N19/13 ,  H04N19/15 ,  H04N19/176 ,  H04N19/33 ,  H04N19/426 ,  H04N19/428 ,  H04N19/513

Abstract: A method and apparatus for three-dimensional video coding, multi-view video coding and scalable video coding are disclosed. Embodiments of the present invention use two stage motion data compression to reduce motion data buffer requirement. A first-stage motion data compression is applied after each texture picture or depth map is coded to reduce motion data buffer requirement. Accordingly, first compressed motion data is stored in reduced resolution in the buffer to reduce storage requirement and the first compressed motion data is used for coding process of other texture pictures or depth maps in the same access unit. After all pictures in an access unit are coded, motion data associated with the access unit is further compressed and the second compressed motion data is used during coding process of pictures in other access unit.

Abstract translation: 公开了一种用于三维视频编码，多视点视频编码和可缩放视频编码的方法和装置。 本发明的实施例使用两级运动数据压缩来减少运动数据缓冲器的需求。 在每个纹理图像或深度图被编码之后应用第一阶段运动数据压缩以减少运动数据缓冲器要求。 因此，第一压缩运动数据以降低的分辨率存储在缓冲器中以减少存储要求，并且第一压缩运动数据用于在相同存取单元中的其他纹理图像或深度图的编码处理。 在访问单元中的所有图像被编码之后，与访问单元相关联的运动数据被进一步压缩，并且在其他访问单元中的图像的编码处理期间使用第二压缩运动数据。