公开(公告)号：US11182636B2

公开(公告)日：2021-11-23

申请号：US16533813

申请日：2019-08-07

Applicant: Wistron Corporation

Inventor： Po-Chun Chen ,  Yu-Yen Chen ,  Kuo-Ting Huang

IPC: G06K9/46 ,  G06T7/73 ,  G06K9/32

Abstract: A method and a computing device for adjusting a region of interest (ROI) are provided. The method includes: receiving a image sequence including a current image and a previous image; generating a predefined searching area based on a previous ROI in the previous image; performing feature matching on multiple image features within the predefined searching area in the previous image and multiple image features within the predefined searching area in the current image; and adjusting a position of the previous ROI in the previous image based on the image features within the predefined searching area in the current image in response to that the image features within the predefined searching area in the current image satisfy a matching condition to obtain the current ROI in the current image.

公开(公告)号：US11126306B2

公开(公告)日：2021-09-21

申请号：US16901013

申请日：2020-06-15

Applicant: Wistron Corporation

Inventor： Kuo-Hsien Lu ,  Yu-Yen Chen

IPC: G06F3/042 ,  G06K9/00 ,  G06F3/01

Abstract: An optical touch apparatus and a width detecting method thereof are provided. The optical touch apparatus includes at least two sensing components, a light emitting component, and a width detecting module. The sensing components are configured to sense a touch object located on a touch plane. The light emitting component is configured to be a light source of the touch plane and is disposed adjacent to one of the sensing components. The width detecting module is coupled to the light emitting component and the other of the sensing components. The light emitting component is controlled by the width detecting module to emit a light. The other of the sensing components is controlled by the width detecting module to sense intensity of the light. The width detecting module detects a distance between the sensing components according to the sensed intensity of the light.

公开(公告)号：US10965916B2

公开(公告)日：2021-03-30

申请号：US16360015

申请日：2019-03-21

Applicant: Wistron Corporation

Inventor： Zhen-Te Liu ,  Yu-Yen Chen

IPC: G06K9/00 ,  H04N7/18

Abstract: A video file processing method for making and outputting an event film according to video files is provided. The method includes: acquiring at least one video file and detecting a plurality of events and an occurring time of each event in the video file; extracting a plurality of event clips including the events from the video file according to the occurring time; obtaining an event film by assembling a plurality of concerned clips in the event clips according to a merging rule; and outputting the event film. In addition, a video file processing device and a monitoring system using the method are also provided.

公开(公告)号：US10460460B2

公开(公告)日：2019-10-29

申请号：US15242604

申请日：2016-08-22

Applicant: Wistron Corporation

Inventor： Bo-Yi Wu ,  Yu-Yen Chen

IPC: G06T7/00 ,  G06T7/55 ,  H04N7/18 ,  G06T7/11 ,  G06T7/70 ,  G06T5/50 ,  G06T7/593 ,  H04N13/00

Abstract: A method and a system including at least three image capturing devices for generating depth information are proposed. Multiple depth maps associated with a specific scene are obtained, where each of the depth maps corresponds to a different group of the image capturing devices and a different estimated region of the specific scene. For each pixel corresponding to the specific scene, whether the pixel is within a joint overlapping region of its estimated region is determined. If no, the depth information of the pixel is set according to its depth value in the depth map corresponding to a non-joint overlapping region of its estimated region. If yes, the depth information of the pixel is set according to its depth values in the depth maps corresponding to the joint overlapping region within its estimated region. An integrated depth map is generated by using the depth information of all the pixels.

公开(公告)号：US20190155454A1

公开(公告)日：2019-05-23

申请号：US16261599

申请日：2019-01-30

Applicant: Wistron Corporation

Inventor： You-Jyun Syu ,  Ching-An Cho ,  Kuo-Ting Huang ,  Yu-Yen Chen

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0428 ,  G06F3/0416 ,  G06F3/0418 ,  G06F2203/04104

Abstract: A method for detecting multiple touch positions on a touch surface, which is applicable to a touch apparatus having multiple optical sensing modules, where each optical sensing module includes at least two optical sensing devices. The method includes: acquiring multiple pieces of sense information; determining multiple touch ranges for each piece of sense information; determining multiple points of intersection; selecting one of the pieces of sense information of which the touch ranges are used to calculate a greatest numbers of the points of intersection; for each touch range of the selected sense information, repeatedly selecting two of the points of intersection calculated using the corresponding touch range according to distances until the selected two points of intersection are verified as being located within the touch ranges of at least another one piece of sense information other than the selected sense information; and calculating the touch positions as actual touch positions according to the selected points of intersection when the selected points of intersection are verified as being located within the touch ranges of the at least another one piece of sense information other than the selected sense information.

公开(公告)号：US10073561B2

公开(公告)日：2018-09-11

申请号：US14805477

申请日：2015-07-22

Applicant: Wistron Corporation

Inventor： Wei-Kuo Kan ,  Kuo-Ting Huang ,  Yu-Yen Chen ,  Chia-Ta Hsieh

IPC: G06F3/041 ,  G06F3/042

CPC classification number: G06F3/0418 ,  G06F3/042

Abstract: A touch apparatus and a correction method thereof are provided. Whether to divide a correction block is determined by calculating distortion error quantity of the correction block, so as to make the distortion error quantity of each divided correction block is less than or equal to a preset threshold. A correction parameter set of each correction block is obtained. Accordingly, in an operation procedure, correction for a touch behavior of a user is executed based on the correction parameter set.

公开(公告)号：US10037107B2

公开(公告)日：2018-07-31

申请号：US14821810

申请日：2015-08-10

Applicant: Wistron Corporation

Inventor： Bo-Yi Wu ,  Yu-Yen Chen ,  Kuo-Hsien Lu ,  Wei-Kuo Kan ,  Kuo-Ting Huang ,  Ching-An Cho ,  Chih-Hao Chiu ,  Chan-Hsuan Yu ,  You-Jyun Syu

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0428 ,  G06F3/0416

Abstract: An optical touch device and a sensing method thereof are provided. The optical touch device includes a plurality of optical sensors and a processing unit. The optical sensors are arranged around a touch plane and are spaced from each other. The two adjacent optical sensors located at one side of the touch plane are defined as one set of an optical sensing module, such that the optical sensors are paired to form multiple sets of the optical sensing modules. The processing unit generates a plurality of touch coordinates data corresponding to the plurality sets of the optical sensing modules according to the optical touch data, and determines whether the touch coordinates data corresponding to each set of the optical sensing modules is in at least one touch-excluded area corresponding to each set of the optical sensing modules, and respectively excludes the touch coordinates data in the touch-excluded area.

公开(公告)号：US20160209985A1

公开(公告)日：2016-07-21

申请号：US14706973

申请日：2015-05-08

Applicant: Wistron Corporation

Inventor： Yen-Ting Lin ,  Yu-Yen Chen ,  Po-Liang Huang

IPC: G06F3/042 ,  G09G5/00

CPC classification number: G06F3/0421 ,  G09G5/003 ,  G09G2300/04

Abstract: An optical touch device and a touch detecting method using the same are provided. The optical touch device is suitable for use with a touch surface and includes a control unit and first to fourth optical capturing units. The first to fourth optical capturing units are disposed on a side of the optical touch device close to the touch surface. The first to fourth optical capturing units are respectively disposed at predetermined distances from the touch surface and are disposed based on predetermined angles. A touch covering area of each of the first to fourth optical capturing units is obtained respectively based on the predetermined distance and the predetermined angle. The touch covering area is positively correlated to the predetermined distance. At least one touch point on the touch surface is calculated by the control unit based on optical sensing information captured by the first to fourth optical capturing units.

Abstract translation: 提供了一种光学触摸装置和使用其的触摸检测方法。 该光学触摸装置适用于触摸表面，并且包括控制单元和第一至第四光学捕获单元。 第一至第四光学捕获单元设置在靠近触摸表面的光学触摸装置的一侧。 第一至第四光学捕获单元分别设置在距离触摸表面的预定距离处，并且基于预定角度设置。 基于预定距离和预定角度分别获得第一至第四光学捕获单元中的每一个的触摸覆盖区域。 触摸覆盖区域与预定距离正相关。 基于由第一至第四光学捕获单元捕获的光学感测信息，由控制单元计算触摸表面上的至少一个触摸点。

公开(公告)号：US20160132143A1

公开(公告)日：2016-05-12

申请号：US14606025

申请日：2015-01-27

Applicant: Wistron Corporation

Inventor： Yu-Yen Chen

IPC: G06F3/042

CPC classification number: G06F3/0423

Abstract: An optical touch module and a touch detecting method thereof are provided. The optical touch module includes a plurality of sensing components, at least one carrier component and a control unit. The sensing components are configured to sense a touch object located on a touch plane. The carrier component carries and rotates at least one of the sensing components to change sensing directions of the sensing components relative to the touch plane. The control unit is coupled to the sensing components and the carrier component and divides the touch plane into a plurality of regions based on the sensing components. The control unit controls the rotation of the carrier component to change the sensing direction of the at least one sensing component, such that the sensing components sense the regions. The control unit calculates a coordinate of the touch object according to sensing results of the sensing components.

Abstract translation: 提供了一种光学触摸模块及其触摸检测方法。 光学触摸模块包括多个感测组件，至少一个载体组件和控制单元。 感测部件被配置为感测位于触摸平面上的触摸对象。 载体部件携带和旋转至少一个感测部件以改变感测部件相对于触摸平面的感测方向。 控制单元耦合到感测部件和载体部件，并且基于感测部件将触摸平面划分成多个区域。 控制单元控制载体组件的旋转以改变至少一个感测组件的感测方向，使得感测组件感测区域。 控制单元根据感测部件的检测结果来计算触摸对象的坐标。

公开(公告)号：US09262013B2

公开(公告)日：2016-02-16

申请号：US14231760

申请日：2014-04-01

Applicant: Wistron Corporation

Inventor： Chun-Chao Chang ,  Yu-Yen Chen

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/042 ,  G06F3/0418

Abstract: A calibrating method applied to an out-cell optical touch device relative to a display panel is disclosed. The calibrating method is suitable for the out-cell optical touch device that includes at least one signal sensor and at least two position sensors. The position sensors are respectively disposed on two adjacent sides of a frame of the out-cell optical touch device. The calibrating method includes acquiring a first value according to dimensions of the display panel, detecting a distance between the frame and sides of the display panel to acquire a second value, utilizing the first value and the second value to obtain an offset, and transforming touch coordinates detected by the signal sensor into screen coordinates applied for the display panel according to the offset.

Abstract translation: 公开了相对于显示面板应用于外部单元光学触摸装置的校准方法。 校准方法适合于包括至少一个信号传感器和至少两个位置传感器的外部单元光学触摸装置。 位置传感器分别设置在外单元光学触摸装置的框架的两个相邻侧上。 校准方法包括根据显示面板的尺寸获取第一值，利用第一值和第二值来检测框架和显示面板的侧面之间的距离以获得第二值，以获得偏移，并且转换触摸 由信号传感器检测到的坐标根据偏移量应用于显示面板的屏幕坐标。