公开(公告)号：US09465483B2

公开(公告)日：2016-10-11

申请号：US14810490

申请日：2015-07-28

Applicant: MEDIATEK INC.

Inventor： Chi-Ling Wu ,  Yu-Pao Tsai ,  Chia-Ping Chen ,  Yu-Ting Chen

IPC: G06F3/041 ,  G06T7/00 ,  G06F3/042

CPC classification number: G06F3/0418 ,  G06F3/042 ,  G06T7/85 ,  G06T2200/04 ,  G06T2207/10012 ,  G06T2207/10028

Abstract: The invention provides an input-output calibration method performed by a processing unit connected to an output device and an input device. The output and the input device correspond to an output and an input device coordinate systems, respectively. The processing unit uses the input device to derive a plurality of lines in the input device coordinate system for M calibration points by sensing a viewer specifying the M calibration points' positions, the plurality of lines are between the M calibration points and the viewer's the predetermined object's different positions, M is a positive integer equal to or larger than three. The processing unit derives the M calibration points' coordinates in the input device coordinate system according to the plurality of lines and uses the M calibration points' coordinates in the output and the input device coordinate systems to derive the relationship between the output and the input device coordinate systems.

Abstract translation: 本发明提供了一种由连接到输出设备和输入设备的处理单元执行的输入 - 输出校准方法。 输出和输入设备分别对应于输出和输入设备坐标系。 处理单元使用输入装置通过感测指定M个校准点的位置的观察者来导出用于M个校准点的输入装置坐标系中的多条线，多条线在M个校准点和观察者的预定位置之间 对象的不同位置，M是等于或大于3的正整数。 处理单元根据多行导出输入设备坐标系中的M个校准点的坐标，并使用输出中的M个校准点的坐标和输入设备坐标系来得出输出和输入设备之间的关系 坐标系。

公开(公告)号：US20160205410A1

公开(公告)日：2016-07-14

申请号：US15072807

申请日：2016-03-17

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yu-Pao Tsai ,  Yi-Wen Chen ,  Jicheng An ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/513 ,  H04N19/56 ,  H04N19/583 ,  H04N19/57

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/56 ,  H04N19/57 ,  H04N19/583

Abstract: A method and apparatus for deriving a motion vector predictor (MVP) for a motion vector (MV) of a current block of a current picture in Inter, or Merge, or Skip mode. The method selects a co-located block corresponding to a co-located picture and receives one or more reference motion vectors (MVs) of one or more co-located reference blocks associated with the co-located block. The method also determines a search set and determines a search order for the search set, if the search MV corresponding to the given reference list is not available, the search order then searches the search MV corresponding to a reference list different from the given reference list. Finally, the method determines the MVP for the current block based on the search set and the search order and provides the MVP for the current block.

Abstract translation: 一种用于在Inter或Merge或Skip模式中导出当前图像的当前块的运动矢量（MV）的运动矢量预测器（MVP）的方法和装置。 该方法选择与同位置图片相对应的共定位块，并且接收与同位置块相关联的一个或多个同位置参考块的一个或多个参考运动矢量（MV）。 该方法还确定搜索集并确定搜索集的搜索顺序，如果与给定参考列表相对应的搜索MV不可用，则搜索顺序然后搜索与给定参考列表不同的参考列表对应的搜索MV 。 最后，该方法基于搜索集和搜索顺序确定当前块的MVP，并为当前块提供MVP。

公开(公告)号：US20150331516A1

公开(公告)日：2015-11-19

申请号：US14810490

申请日：2015-07-28

Applicant: Mediatek Inc.

Inventor： Chi-Ling Wu ,  Yu-Pao Tsai ,  Chia-Ping Chen ,  Yu-Ting Chen

IPC: G06F3/042 ,  G06T7/00 ,  G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/042 ,  G06T7/85 ,  G06T2200/04 ,  G06T2207/10012 ,  G06T2207/10028

Abstract: One of the embodiments of the invention provides an input-output calibration method performed by a processing unit connected to an output device and an input device. The output device and the input device correspond to an output device coordinate system and an input device coordinate system, respectively. The processing unit first uses the input device to derive a plurality of lines in the input device coordinate system for M calibration points by sensing a viewer specifying the M calibration points' positions, wherein the plurality of lines are between the M calibration points and the viewer's the predetermined object's different positions, and M is a positive integer equal to or larger than three. Then, the processing unit derives the M calibration points' coordinates in the input device coordinate system according to the plurality of lines and uses the M calibration points' coordinates in the output device coordinate system and coordinates in the input device coordinate system to derive the relationship between the output device coordinate system and the input device coordinate system.

Abstract translation: 本发明的一个实施例提供了一种由连接到输出设备和输入设备的处理单元执行的输入 - 输出校准方法。 输出装置和输入装置分别对应于输出装置坐标系和输入装置坐标系。 处理单元首先使用输入装置通过感测指定M个校准点位置的观察者来导出用于M个校准点的输入装置坐标系中的多条线，其中多条线在M个校准点和观察者的 预定对象的不同位置，M是等于或大于3的正整数。 然后，处理单元根据多行导出输入装置坐标系中的M个校准点的坐标，并使用输出装置坐标系中的M个校准点的坐标和输入装置坐标系中的坐标来导出关系 在输出设备坐标系和输入设备坐标系之间。

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：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：US09525879B2

公开(公告)日：2016-12-20

申请号：US15047943

申请日：2016-02-19

Applicant: MediaTek Inc.

Inventor： Jian-Liang Lin ,  Yi-Wen Chen ,  Yu-Wen Huang ,  Chih-Ming Fu ,  Chi-Ling Wu ,  Yu-Pao Tsai ,  Ching-Yeh Chen ,  Shaw-Min Lei

IPC: H04N11/02 ,  H04N19/109 ,  H04N19/52 ,  H04N19/65 ,  H04N19/895 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/174 ,  H04N19/177 ,  H04N19/184 ,  H04N19/567 ,  H04N19/593 ,  H04N19/615 ,  H04N19/70

CPC classification number: H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/174 ,  H04N19/177 ,  H04N19/184 ,  H04N19/52 ,  H04N19/567 ,  H04N19/593 ,  H04N19/615 ,  H04N19/65 ,  H04N19/70 ,  H04N19/895

Abstract: A method and apparatus for deriving a motion vector predictor (MVP) are disclosed. The MVP is selected from spatial MVP and temporalone or more MVP candidates. The method determines a value of a flag in a video bitstream, where the flag is utilized for selectively disabling use of one or more temporal MVP candidates for motion vector prediction. The method selects, based on an index derived from the video bitstream, the MVP from one or more non-temporal MVP candidates responsive to the flag indicating that said one or more temporal MVP candidates are not to be utilized for motion vector prediction. Further, the method provides the MVP for the current block.

Abstract translation: 公开了一种用于导出运动矢量预测器（MVP）的方法和装置。 MVP是从空间MVP和temporalㄧ或更多MVP候选中选出的。 该方法确定视频比特流中的标志的值，其中该标志用于选择性地禁用一个或多个用于运动矢量预测的时间MVP候选的使用。 该方法基于从视频比特流导出的索引，根据指示所述一个或多个时间MVP候选不用于运动矢量预测的标志从一个或多个非时间MVP候选中选择MVP。 此外，该方法为当前块提供MVP。

公开(公告)号：US20150326876A1

公开(公告)日：2015-11-12

申请号：US14804484

申请日：2015-07-21

Applicant: MediaTek Inc.

Inventor： Yu-Pao Tsai ,  Jian-Liang Lin ,  Yu-Wen Huang ,  Shaw-Min Lei

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/577 ,  H04N19/109

CPC classification number: H04N19/577 ,  H04N19/109 ,  H04N19/176 ,  H04N19/52 ,  H04N19/61

Abstract: An apparatus and method for temporal motion vector prediction for a current block in a picture are disclosed. In the present method, one temporal block in a first reference picture in a first list selected from a list group comprising list 0 and list 1 is determined. When the determined temporal block has at least one motion vector, a candidate set is determined based on the motion vector of the temporal block. The temporal motion vector predictor or temporal motion vector predictor candidate or temporal motion vector or temporal motion vector candidate for the current block is determined from the candidate set by checking a presence of a motion vector pointing to a reference picture in a first specific list in said at least one motion vector, wherein the first specific list is selected from the list group based on a priority order.

Abstract translation: 公开了一种用于图片中的当前块的时间运动矢量预测的装置和方法。 在本方法中，确定从包括列表0和列表1的列表组中选择的第一列表中的第一参考图片中的一个时间块。 当确定的时间块具有至少一个运动矢量时，基于时间块的运动矢量来确定候选组。 通过检查指向所述第一特定列表中的参考图片的运动矢量的存在，从所述候选组中确定当前块的时间运动矢量预测器或时间运动矢量预测器候选或时间运动矢量或时间运动矢量候选 至少一个运动矢量，其中基于优先级顺序从所述列表组中选择所述第一特定列表。

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：US09118929B2

公开(公告)日：2015-08-25

申请号：US14601247

申请日：2015-01-21

Applicant: MEDIATEK INC.

Inventor： Jian-Liang Lin ,  Yu-Pao Tsai ,  Shaw-Min Lei

IPC: H04N19/52 ,  H04N19/597 ,  H04N19/513 ,  H04N7/12

CPC classification number: H04N19/597 ,  H04N19/52 ,  H04N19/521 ,  H04N19/54 ,  H04N19/547 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

Abstract: A method and apparatus for performing hybrid multihypothesis prediction during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing disparity vector (DV) derivation when the coding unit is processed by a 3D or multi-view coding tool or performing block vector (BV) derivation when the coding unit is processed by intra picture block copy (IntraBC) mode. The step of performing DV or BV derivation includes deriving a plurality of vectors for multihypothesis motion-compensated prediction of a specific sub-coding unit from at least one other sub-coding/coding unit. The one other sub-coding/coding unit is coded before the corresponding DV or BV is derived for multihypothesis motion-compensated prediction of the specific sub-coding unit. A linear combination of a plurality of pixel values derived from the plurality of vectors is used as a predicted pixel value of the specific sub-coding unit.

Abstract translation: 一种用于在编码单元的视频编码期间执行混合多重假设预测的方法和装置包括：处理编码单元中的多个子编码单元; 并且当编码单元被3D或多视图编码工具处理时执行视差矢量（DV）导出，或者当通过帧内图像块复制（IntraBC）模式处理编码单元时执行块向量（BV）导出。 执行DV或BV导出的步骤包括从至少一个其他子编码/编码单元导出用于特定子编码单元的多假设运动补偿预测的多个向量。 在对应的DV或BV被导出用于特定子编码单元的多假设运动补偿预测之前，另一个子编码/编码单元被编码。 将从多个向量导出的多个像素值的线性组合用作特定子编码单元的预测像素值。