公开(公告)号：US20220159196A1

公开(公告)日：2022-05-19

申请号：US17588128

申请日：2022-01-28

Applicant: MediaTek Inc.

Inventor： Yuan-Chung Lee

IPC: H04N5/265 ,  H04N5/247 ,  G06T7/55 ,  H04N7/01

Abstract: Various examples pertaining to camera view synthesis on head-mounted display (HMD) for virtual reality (VR) and augmented reality (AR) are described. A method involves receiving, from a plurality of tracking cameras disposed around a HMD, image data of a scene which is on a first side of the HMD. The method also involves performing, using the image data and depth information pertaining to the scene, view synthesis to generate a see-through effect of viewing the scene from a viewing position on a second side of the HMD opposite the first side thereof.

公开(公告)号：US09635270B2

公开(公告)日：2017-04-25

申请号：US15218069

申请日：2016-07-24

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee

IPC: H04N5/222 ,  H04N5/232 ,  H04N5/225 ,  H04N5/355

CPC classification number: H04N5/23293 ,  H04N5/2257 ,  H04N5/23212 ,  H04N5/23229 ,  H04N5/355

Abstract: A method for performing image control in an electronic device and an associated apparatus are provided, where the method may include the steps of: obtaining a specific image from a camera module of the electronic device, and obtaining a specific focus-related parameter corresponding to the specific image, wherein the specific focus-related parameter is related to focus control of the camera module; determining a specific resize parameter corresponding to the specific image according to a relationship between the specific resize parameter and the specific focus-related parameter; and performing a resize operation on the specific image according to the specific resize parameter, to control the specific image to be displayed in a quasi-scale-invariant manner.

公开(公告)号：US20140340491A1

公开(公告)日：2014-11-20

申请号：US14272491

申请日：2014-05-07

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee

IPC: H04N13/04

CPC classification number: H04N13/302 ,  H04N5/144 ,  H04N13/128 ,  H04N2013/0081 ,  H04N2013/0085

Abstract: A stereo preview apparatus has an auto-stereoscopic display, an input interface, a motion detection circuit, and a visual transition circuit. The input interface receives at least an input stereo image pair including a left-view image and a right-view image generated from an image capture device. The motion detection circuit evaluates a motion status of the image capture device. The visual transition circuit generates an output stereo image pair based on the input stereo image pair, and outputs the output stereo image pair to the auto-stereoscopic display for stereo preview, wherein the visual transition circuit refers to the evaluated motion status to configure adjustment made to the input stereo image pair when generating the output stereo image pair.

Abstract translation: 立体预览装置具有自动立体显示器，输入接口，运动检测电路和视觉转换电路。 输入接口至少接收包括从图像捕获装置生成的左视图图像和右视图图像的输入立体图像对。 运动检测电路评估图像捕获装置的运动状态。 视觉转换电路基于输入立体图像对生成输出立体图像对，并将输出立体图像对输出到用于立体预览的自动立体显示器，其中视觉转换电路参考评估的运动状态以配置调整 到输出立体图像对时生成输出立体图像对。

公开(公告)号：US20140285635A1

公开(公告)日：2014-09-25

申请号：US14221260

申请日：2014-03-20

Applicant: MEDIATEK INC.

Inventor： Chi-Cheng Ju ,  Ding-Yun Chen ,  Cheng-Tsai Ho ,  Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee ,  Chung-Hung Tsai

IPC: H04N13/00 ,  H04N13/02

CPC classification number: H04N13/111 ,  H04N13/106 ,  H04N13/243 ,  H04N13/282

Abstract: A video frame processing method, which comprises: (a) capturing at least one first video frame via a first camera; (b) capturing at least one second video frame via a second camera; and (c) adjusting one candidate second video frame of the second video frames based on one of the first video frame to generate a target single view video frame.

Abstract translation: 一种视频帧处理方法，包括：（a）经由第一相机捕获至少一个第一视频帧; （b）经由第二相机拍摄至少一个第二视频帧; 和（c）基于第一视频帧中的一个来调整第二视频帧的一个候选第二视频帧以产生目标单视图视频帧。

公开(公告)号：US09554113B2

公开(公告)日：2017-01-24

申请号：US14221229

申请日：2014-03-20

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee ,  Chung-Hung Tsai ,  Chi-Cheng Ju ,  Ding-Yun Chen ,  Cheng-Tsai Ho

IPC: H04N15/00 ,  H04N13/00 ,  H04N13/02

CPC classification number: H04N13/111 ,  H04N13/106 ,  H04N13/243 ,  H04N13/282

Abstract: A video frame processing method, which comprises: (a) capturing at least two video frames via a multi-view camera system comprising a plurality of cameras; (b) recording timestamps for each the video frame; (c) determining a major camera and a first sub camera out of the multi-view camera system, based on the timestamps, wherein the major camera captures a major video sequence comprising at least one major video frame, the first sub camera captures a video sequence of first view comprising at least one video frame of first view; (d) generating a first reference video frame of first view according to one first reference major video frame of the major video frames, which is at a reference timestamp corresponding to the first reference video frame of first view, and according to at least one the video frame of first view surrounding the reference timestamp; and (e) generating a multi-view video sequence comprising a first multi-view video frame, wherein the first multi-view video frame is generated based on the first reference video frame of first view and the first reference major video frame.

Abstract translation: 一种视频帧处理方法，包括：（a）经由包括多个相机的多视点相机系统捕获至少两个视频帧; （b）记录每个视频帧的时间戳; （c）基于所述时间戳来确定所述多视点相机系统中的主要相机和第一子相机，其中所述主要相机捕获包括至少一个主要视频帧的主要视频序列，所述第一子摄像机捕获视频 第一视图的序列包括至少一个第一视图的视频帧; （d）根据主要视频帧的一个第一参考主视频帧生成第一参考视频帧，该第一参考视频帧处于与第一视图的第一参考视频帧对应的参考时间戳，并且根据至少一个 围绕参考时间戳的第一视图的视频帧; 以及（e）生成包括第一多视点视频帧的多视点视频序列，其中基于第一视图的第一参考视频帧和第一参考主视频帧生成第一多视点视频帧。

公开(公告)号：US20160212357A1

公开(公告)日：2016-07-21

申请号：US14599550

申请日：2015-01-19

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee

IPC: H04N5/262 ,  H04N5/232 ,  H04N5/225

CPC classification number: H04N5/23293 ,  H04N5/2257 ,  H04N5/23212 ,  H04N5/23229 ,  H04N5/355

Abstract: A method for performing preview control in an electronic device and an associated apparatus are provided, where the method may include the steps of: obtaining a specific preview image from a camera module of the electronic device, and obtaining a specific focus-related parameter corresponding to the specific preview image, wherein the specific focus-related parameter is related to focus control of the camera module; determining a specific resize parameter corresponding to the specific preview image according to a predetermined relationship between the specific resize parameter and the specific focus-related parameter; and performing a resize operation on the specific preview image according to the specific resize parameter, to control the specific preview image to be displayed in a quasi-scale-invariant manner with respect to a plurality of preview images.

Abstract translation: 提供了一种用于在电子设备和相关设备中执行预览控制的方法，其中该方法可以包括以下步骤：从电子设备的相机模块获取特定的预览图像，并且获得与该电子设备相对应的特定焦点相关参数 特定预览图像，其中特定焦点相关参数与相机模块的焦点控制相关; 根据特定调整大小参数和特定焦点相关参数之间的预定关系确定与特定预览图像相对应的特定调整大小参数; 以及根据特定调整大小参数对特定预览图像执行调整大小操作，以相对于多个预览图像以准尺度不变方式控制要显示的特定预览图像。

公开(公告)号：US09955142B2

公开(公告)日：2018-04-24

申请号：US14322930

申请日：2014-07-03

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee ,  Chung-Hung Tsai

IPC: H04N13/02

CPC classification number: H04N13/296 ,  H04N13/239 ,  H04N13/25

Abstract: An on-line stereo camera calibration method employed by an electronic device with a stereo camera device includes: retrieving a feature point set, and utilizing a stereo camera calibration circuit on the electronic device to calculate a stereo camera parameter set based on the retrieved feature point set. In addition, an on-line stereo camera calibration device on an electronic device with a stereo camera device includes a stereo camera calibration circuit. The stereo camera calibration circuit includes an input interface and a stereo camera calibration unit. The input interface is used to retrieve a feature point set. The stereo camera calibration unit is used to calculate a stereo camera parameter set based on at least the retrieved feature point set.

公开(公告)号：US20160337603A1

公开(公告)日：2016-11-17

申请号：US15218069

申请日：2016-07-24

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee

IPC: H04N5/262 ,  H04N5/225 ,  H04N5/232

CPC classification number: H04N5/23293 ,  H04N5/2257 ,  H04N5/23212 ,  H04N5/23229 ,  H04N5/355

Abstract: A method for performing image control in an electronic device and an associated apparatus are provided, where the method may include the steps of: obtaining a specific image from a camera module of the electronic device, and obtaining a specific focus-related parameter corresponding to the specific image, wherein the specific focus-related parameter is related to focus control of the camera module; determining a specific resize parameter corresponding to the specific image according to a relationship between the specific resize parameter and the specific focus-related parameter; and performing a resize operation on the specific image according to the specific resize parameter, to control the specific image to be displayed in a quasi-scale-invariant manner.

Abstract translation: 提供了一种在电子设备和相关设备中进行图像控制的方法，其中该方法可以包括以下步骤：从电子设备的相机模块获得特定图像，并获得与该电子设备相对应的特定焦点相关参数 特定图像，其中特定焦点相关参数与相机模块的焦点控制相关; 根据特定调整大小参数和特定焦点相关参数之间的关系确定与特定图像对应的特定调整大小参数; 并且根据特定的调整大小参数对特定图像执行调整大小操作，以准尺度不变方式控制要显示的特定图像。

公开(公告)号：US09426386B2

公开(公告)日：2016-08-23

申请号：US14599550

申请日：2015-01-19

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee

IPC: H04N5/222 ,  H04N5/232 ,  H04N5/262 ,  H04N5/225

CPC classification number: H04N5/23293 ,  H04N5/2257 ,  H04N5/23212 ,  H04N5/23229 ,  H04N5/355

Abstract: A method for performing preview control in an electronic device and an associated apparatus are provided, where the method may include the steps of: obtaining a specific preview image from a camera module of the electronic device, and obtaining a specific focus-related parameter corresponding to the specific preview image, wherein the specific focus-related parameter is related to focus control of the camera module; determining a specific resize parameter corresponding to the specific preview image according to a predetermined relationship between the specific resize parameter and the specific focus-related parameter; and performing a resize operation on the specific preview image according to the specific resize parameter, to control the specific preview image to be displayed in a quasi-scale-invariant manner with respect to a plurality of preview images.

Abstract translation: 提供了一种用于在电子设备和相关设备中执行预览控制的方法，其中该方法可以包括以下步骤：从电子设备的相机模块获取特定的预览图像，并且获得与该电子设备相对应的特定焦点相关参数 特定预览图像，其中特定焦点相关参数与相机模块的焦点控制相关; 根据特定调整大小参数和特定焦点相关参数之间的预定关系确定与特定预览图像相对应的特定调整大小参数; 以及根据特定调整大小参数对特定预览图像执行调整大小操作，以相对于多个预览图像以准尺度不变方式控制要显示的特定预览图像。

公开(公告)号：US20150009291A1

公开(公告)日：2015-01-08

申请号：US14322930

申请日：2014-07-03

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Po-Hao Huang ,  Yuan-Chung Lee ,  Chung-Hung Tsai

IPC: H04N13/02

CPC classification number: H04N13/296 ,  H04N13/239 ,  H04N13/25

Abstract: An on-line stereo camera calibration method employed by an electronic device with a stereo camera device includes: retrieving a feature point set, and utilizing a stereo camera calibration circuit on the electronic device to calculate a stereo camera parameter set based on the retrieved feature point set. In addition, an on-line stereo camera calibration device on an electronic device with a stereo camera device includes a stereo camera calibration circuit. The stereo camera calibration circuit includes an input interface and a stereo camera calibration unit. The input interface is used to retrieve a feature point set. The stereo camera calibration unit is used to calculate a stereo camera parameter set based on at least the retrieved feature point set.

Abstract translation: 具有立体相机装置的电子装置采用的在线立体相机校准方法包括：检索特征点集合，并且利用电子设备上的立体相机校准电路来基于所检索的特征点来计算立体相机参数集 组。 此外，具有立体相机装置的电子设备上的在线立体相机校准装置包括立体相机校准电路。 立体相机校准电路包括输入接口和立体相机校准单元。 输入接口用于检索特征点集。 立体相机校准单元用于至少基于所检索的特征点集来计算立体相机参数集。