公开(公告)号：US20140200060A1

公开(公告)日：2014-07-17

申请号：US14200232

申请日：2014-03-07

Applicant: MediaTek Inc.

Inventor： Chi-Ling WU ,  Yu-Pao TSAI ,  Yu-Lin CHANG

IPC: G06F3/01 ,  A63F13/00 ,  G06F3/03

CPC classification number: G06F3/011 ,  A63F13/005 ,  A63F2300/1087 ,  A63F2300/8076 ,  A63F2300/8082 ,  G06F3/005 ,  G06F3/017 ,  G06F3/0304

Abstract: An interaction display system applied in a mobile device is provided. The system has a camera unit configured to capture images of a scene; a motion detection unit configured to detect motions of the mobile device during capturing the images; and a processing unit coupled to the camera unit and the motion detection unit, configured to estimate a geometry of the scene according to the captured images and the detected motions.

Abstract translation: 提供了一种应用在移动设备中的交互式显示系统。 该系统具有被配置为捕获场景的图像的相机单元; 运动检测单元，被配置为在捕获图像期间检测移动设备的运动; 以及耦合到相机单元和运动检测单元的处理单元，其被配置为根据所捕获的图像和检测到的运动来估计场景的几何形状。

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：US20190213756A1

公开(公告)日：2019-07-11

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 ,  H04N5/232 ,  B60R1/00 ,  E05B81/64

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：US20160205403A1

公开(公告)日：2016-07-14

申请号：US15075004

申请日：2016-03-18

Applicant: MediaTek Inc.

Inventor： Yu-Wen HUANG ,  Ching-Yeh CHEN ,  Chih-Ming FU ,  Chih-Wei HSU ,  Yu-Lin CHANG ,  Tzu-Der CHUANG ,  Shaw-Min LEI

IPC: H04N19/174 ,  H04N19/18 ,  H04N19/70 ,  H04N19/13 ,  H04N19/96 ,  H04N19/103 ,  H04N19/159 ,  H04N19/176 ,  H04N19/126 ,  H04N19/119

CPC classification number: H04N19/174 ,  H04N19/103 ,  H04N19/119 ,  H04N19/126 ,  H04N19/13 ,  H04N19/146 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/463 ,  H04N19/70 ,  H04N19/96

Abstract: In one implementation, a method codes video pictures, in which each of the video pictures is partitioned into LCUs (largest coding units). The method operates by receiving a current LCU, partitioning the current LCU adaptively to result in multiple leaf CUs, determining whether a current leaf CU has at least one nonzero quantized transform coefficient according to both Prediction Mode (PredMode) and Coded Block Flag (CBF), and incorporating quantization parameter information for the current leaf CU in a video bitstream, if the current leaf CU has at least one nonzero quantized transform coefficient. If the current leaf CU has no nonzero quantized transform coefficient, the method excludes the quantization parameter information for the current leaf CU in the video bitstream.

Abstract translation: 在一个实现中，一种方法对视频图像进行编码，其中每个视频图像被分割成LCU（最大编码单元）。 该方法通过接收当前LCU进行操作，自适应地划分当前LCU以产生多个叶片，根据预测模式（PredMode）和编码块标志（CBF）确定当前叶CU是否具有至少一个非零量化变换系数， 并且如果当前叶CU具有至少一个非零量化变换系数，则将当前叶CU的量化参数信息合并到视频比特流中。 如果当前叶CU没有非零量化变换系数，则该方法排除了视频比特流中当前叶CU的量化参数信息。

公开(公告)号：US20160182884A1

公开(公告)日：2016-06-23

申请号：US14908273

申请日：2014-08-13

Applicant: MEDIATEK INC.

Inventor： Jian-Liang LIN ,  Na ZHANG ,  Yi-Wen CHEN ,  Jicheng AN ,  Yu-Lin CHANG

IPC: H04N13/00 ,  H04N19/136 ,  H04N19/593 ,  H04N19/124 ,  H04N19/44 ,  H04N19/176

CPC classification number: H04N13/161 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597 ,  H04N2013/0081

Abstract: A method and apparatus for a three-dimensional or multi-view video encoding or decoding system utilizing unified disparity vector derivation is disclosed. When a three-dimensional coding tool using a derived disparity vector (DV) is selected, embodiments according to the present invention will first obtain the derived DV from one or more neighboring blocks. If the derived DV is available, the selected three-dimensional coding tool is applied to the current block using the derived DV. If the derived DV is not available, the selected three-dimensional coding tool is applied to the current block using a default DV, where the default DV is set to point to an inter-view reference picture in a reference picture list of the current block.

Abstract translation: 公开了一种利用统一视差向量导出的三维或多视点视频编码或解码系统的方法和装置。 当选择使用导出的视差矢量（DV）的三维编码工具时，根据本发明的实施例将首先从一个或多个相邻块获得导出的DV。 如果导出的DV可用，则使用导出的DV将所选择的三维编码工具应用于当前块。 如果导出的DV不可用，则使用默认DV将所选择的三维编码工具应用于当前块，其中默认DV设置为指向当前块的参考图片列表中的视频间参考图片 。