公开(公告)号：US20190306488A1

公开(公告)日：2019-10-03

申请号：US16359721

申请日：2019-03-20

Applicant: MediaTek Inc.

Inventor： Han-Yang Wang ,  Yu-Chun Chen ,  Po-Hao Huang ,  Chao-Chung Cheng ,  Ying-Jui Chen ,  Te-Hao Chang

IPC: H04N13/25 ,  H04N5/33 ,  H04N13/254 ,  H04N13/257

Abstract: Various examples with respect to method and apparatus for active stereo vision are described. An apparatus may include an electromagnetic (EM) wave emitter, a first sensor and a second sensor. During operation, the EM wave emitter emits EM waves toward a scene, the first sensor captures a first image of the scene in an infrared (IR) spectrum, and the second sensor captures a second image of the scene in a light spectrum. The first image and second image, when processed, may enable active stereo vision.

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。

公开(公告)号：US20140285637A1

公开(公告)日：2014-09-25

申请号：US14173826

申请日：2014-02-06

Applicant: MEDIATEK INC.

Inventor： Chia-Ming Cheng ,  Cheng-Che Chan ,  Po-Hao Huang

IPC: H04N13/02 ,  H04N13/04

CPC classification number: H04N13/296 ,  H04N13/221 ,  H04N13/30

Abstract: A three-dimensional (3D) image capture method, employed in an electronic device with a monocular camera and a 3D display, includes at least the following steps: while the electronic device is moving, deriving a 3D preview image from a first preview image and a second preview image generated by the monocular camera, and providing 3D preview on the 3D display according to the 3D preview image, wherein at least one of the first preview image and the second preview image is generated while the electronic device is moving; and when a capture event is triggered, outputting the 3D preview image as a 3D captured image.

Abstract translation: 在具有单目相机和3D显示器的电子设备中采用的三维（3D）图像捕获方法至少包括以下步骤：当电子设备正在移动时，从第一预览图像导出3D预览图像，以及 由单眼相机生成的第二预览图像，以及根据3D预览图像在3D显示器上提供3D预览，其中在电子设备移动时产生第一预览图像和第二预览图像中的至少一个; 并且当触发捕获事件时，将3D预览图像作为3D捕获图像输出。

公开(公告)号：US20140285621A1

公开(公告)日：2014-09-25

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: H04N13/00

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。