公开(公告)号：US20150172714A1

公开(公告)日：2015-06-18

申请号：US14412197

申请日：2013-06-28

Applicant: MEDIATEK INC.

Inventor： Chi-Ling Wu ,  Yu-Lin Chang ,  Yu-Pao Tsai ,  Shaw-Min Lei

IPC: H04N19/597 ,  H04N19/176

CPC classification number: H04N19/597 ,  H04N19/119 ,  H04N19/14 ,  H04N19/176 ,  H04N19/463 ,  H04N19/52 ,  H04N19/96

Abstract: A method and apparatus for three-dimensional video encoding or decoding using sub-block based inter-view prediction are disclosed. The method partitions a texture block into texture sub-blocks and determines disparity vectors of the texture sub-blocks. The inter-view reference data is derived based on the disparity vectors of the texture sub-blocks and a reference texture frame in a different view. The inter-view reference data is then used as prediction of the current block for encoding or decoding. One aspect of the present invention addresses partitioning the current texture block. Another aspect of the present invention addresses derivation of disparity vectors for the current texture sub-blocks.

Abstract translation: 公开了使用基于子块的视角间预测的三维视频编码或解码的方法和装置。 该方法将纹理块分割成纹理子块，并确定纹理子块的视差矢量。 基于不同视图中的纹理子块和参考纹理框架的视差矢量导出视图间参考数据。 然后，视频间参考数据被用作对当前块进行编码或解码的预测。 本发明的一个方面涉及对当前纹理块的划分。 本发明的另一方面涉及当前纹理子块的视差矢量的推导。

公开(公告)号：US20150189321A1

公开(公告)日：2015-07-02

申请号：US14538200

申请日：2014-11-11

Applicant: MEDIATEK INC.

Inventor： Yi-Wen Chen ,  Jian-Liang Lin ,  Tzu-Der Chuang ,  Yu-Lin Chang

IPC: H04N19/597 ,  H04N19/13 ,  H04N19/176 ,  H04N19/70 ,  H04N19/139

CPC classification number: H04N19/597 ,  H04N19/70 ,  H04N19/91

Abstract: A method for improved binarization and entropy coding process of syntax related to depth coding is disclosed. In one embodiment, a first value associated with the current depth block is bypass coded, where the first value corresponds to the residual magnitude of a block coded by an Intra or Inter SDC mode, the delta magnitude of a block coded by a DMM mode, or a residual sign of a block coded by the Inter SDC mode. In another embodiment, a first bin of a binary codeword is coded using arithmetic coding and the rest bins of the binary codeword are coded using bypass coding. The codeword corresponds to the residual magnitude of a block coded by the Intra or Inter SDC mode, or the delta DC magnitude of a block coded by the DMM mode.

Abstract translation: 公开了一种用于改进与深度编码相关的语法的二值化和熵编码处理的方法。 在一个实施例中，与当前深度块相关联的第一值被旁路编码，其中第一值对应于通过内部或内部SDC模式编码的块的剩余幅度，由DMM模式编码的块的增量幅度， 或通过Inter SDC模式编码的块的残余符号。 在另一个实施例中，使用算术编码对二进制码字的第一个二进制编码，并且使用旁路编码对二进制码字的其余的存储体进行编码。 码字对应于通过帧间或间隔SDC模式编码的块的剩余幅度或由DMM模式编码的块的增量DC幅度。

公开(公告)号：US20140085416A1

公开(公告)日：2014-03-27

申请号：US14115099

申请日：2012-06-15

Applicant: MEDIATEK INC.

Inventor： Yu-Lin Chang ,  Shih-Ta Hsiang ,  Chi-Ling Wu ,  Chih-Ming Fu ,  Chia-Ping Chen ,  Yu-Pao Tsai ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N13/00

CPC classification number: H04N13/161 ,  G06T9/00 ,  H04N19/119 ,  H04N19/503 ,  H04N19/597

Abstract: A method and apparatus for texture image compression in a 3D video coding system are disclosed. Embodiments according to the present invention derive depth information related to a depth map associated with a texture image and then process the texture image based on the depth information derived. The invention can be applied to the encoder side as well as the decoder side. The encoding order or decoding order for the depth maps and the texture images can be based on block-wise interleaving or picture-wise interleaving. One aspect of the present invent is related to partitioning of the texture image based on depth information of the depth map. Another aspect of the present invention is related to motion vector or motion vector predictor processing based on the depth information.

Abstract translation: 公开了一种用于3D视频编码系统中的纹理图像压缩的方法和装置。 根据本发明的实施例导出与纹理图像相关联的深度图相关的深度信息，然后基于导出的深度信息处理纹理图像。 本发明可以应用于编码器侧以及解码器侧。 深度图和纹理图像的编码顺序或解码顺序可以基于块式交织或图像交错。 本发明的一个方面涉及基于深度图的深度信息对纹理图像的划分。 本发明的另一方面涉及基于深度信息的运动矢量或运动矢量预测器处理。

公开(公告)号：US20150195506A1

公开(公告)日：2015-07-09

申请号：US14485817

申请日：2014-09-15

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen ,  Yu-Wen Huang ,  Yu-Lin Chang

IPC: H04N13/00 ,  H04N19/52 ,  H04N19/70 ,  H04N19/139 ,  H04N19/107 ,  H04N19/176 ,  H04N19/597 ,  H04N19/577

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/597

Abstract: A method of video coding utilizing ARP (advanced residual prediction) by explicitly signaling the temporal reference picture or deriving the temporal reference picture at the encoder and the decoder using identical process is disclosed. To encode or decode a current block in a current picture from a dependent view, a corresponding block in a reference view corresponding to the current block is determined based on a DV (disparity vector). For the encoder side, the temporal reference picture in the reference view of the corresponding block is explicitly signaled using syntax element(s) in the slice header or derived using an identical process as the decoder. For the decoder side, the temporal reference picture in the reference view of the corresponding block is determined according to the syntax element(s) in the slice header or derived using an identical process as the decoder. The temporal reference picture is then used for ARP.

Abstract translation: 公开了一种使用ARP（高级残差预测）的视频编码方法，其通过明确地发信号通知时间参考图片或在编码器和解码器处使用相同的处理来导出时间参考图像。 为了从依赖视图对当前图像中的当前块进行编码或解码，基于DV（视差矢量）来确定对应于当前块的参考视图中的相应块。 对于编码器侧，使用片标题中的语法元素或使用与解码器相同的处理来导出相应块的参考视图中的时间参考图片。 对于解码器侧，相应块的参考视图中的时间参考图片根据片头部中的语法元素确定，或者使用与解码器相同的处理导出。 时间参考图片然后用于ARP。

公开(公告)号：US10482626B2

公开(公告)日：2019-11-19

申请号：US15864237

申请日：2018-01-08

Applicant: MEDIATEK INC.

Inventor： Yu-Lin Chang ,  Yu-Pao Tsai

IPC: G06T7/80 ,  G06K9/46 ,  G06K9/62 ,  H04N5/247 ,  B60R1/00 ,  E05B81/64 ,  H04N5/232

Abstract: Calibration methods for calibrating image capture devices of an around view monitoring (AVM) system mounted on vehicle are provided, the calibration method including: extracting local patterns from images captured by each image capture device, wherein each local pattern is respectively disposed at a position within the image capturing range of one of the image capture devices; acquiring an overhead-view (OHV) image from OHV point above vehicle, wherein the OHV image includes first patterns relative to the local patterns for the image capture devices; generating global patterns from the OHV image using the first patterns, each global pattern corresponding to one of the local patterns; matching the local patterns with the corresponding global patterns to determine camera parameters and transformation information corresponding thereto for each image capture device; and calibrating each image capture device using determined camera parameters and transformation information corresponding thereto so as to generate AVM image.

公开(公告)号：US20150249838A1

公开(公告)日：2015-09-03

申请号：US14429498

申请日：2013-09-17

Applicant: MEDIATEK INC.

Inventor： Yu-Lin Chang ,  Yu-Pao Tsai

IPC: H04N19/597 ,  H04N19/513

CPC classification number: H04N19/597 ,  H04N19/521 ,  H04N19/56

Abstract: A method and apparatus for three-dimensional video coding using the virtual depth information are disclosed. For a current texture block in the dependent view, the method incorporating the present invention first derives an estimated disparity vector to locate a corresponding texture block in a coded view. A collocated depth block in the coded view collocated with the corresponding texture block in the coded view is identified and used to derive the virtual depth information. One aspect of the present invention addresses derivation process for the estimated disparity vector. Another aspect of the present invention addresses the usage of the derived virtual depth information.

Abstract translation: 公开了一种使用虚拟深度信息进行三维视频编码的方法和装置。 对于从属视图中的当前纹理块，结合本发明的方法首先导出估计的视差矢量以在编码视图中定位相应的纹理块。 识别编码视图中与编码视图中的对应纹理块并置的并置深度块，并用于导出虚拟深度信息。 本发明的一个方面涉及估计的视差矢量的推导过程。 本发明的另一方面涉及导出的虚拟深度信息的使用。

公开(公告)号：US20150033157A1

公开(公告)日：2015-01-29

申请号：US14177198

申请日：2014-02-10

Applicant: MEDIATEK INC.

Inventor： Te-Hao Chang ,  Chao-Chung Cheng ,  Yu-Lin Chang ,  Yu-Pao Tsai ,  Ying-Jui Chen

IPC: G06F3/0481 ,  G06T19/20

CPC classification number: G06F3/04815 ,  G06T19/20 ,  H04N5/23229 ,  H04N13/122 ,  H04N2013/0081

Abstract: A 3D displaying method, comprising: acquiring distance information map from at least one image; receiving control information from a user input device; modifying the distance information map according to the control information to generate modified distance information map; generating an interactive 3D image according to the modified distance information map; and displaying the interactive 3D image.

Abstract translation: 一种3D显示方法，包括：从至少一个图像获取距离信息图; 从用户输入设备接收控制信息; 根据控制信息修改距离信息图，生成修改后的距离信息图; 根据修改的距离信息图生成交互式3D图像; 并显示交互式3D图像。