公开(公告)号：US09122345B2

公开(公告)日：2015-09-01

申请号：US14034526

申请日：2013-09-23

Applicant: Wistron Corporation

Inventor： Shih-Wen Chen ,  Yu-Yen Chen ,  Chun-Chao Chang

IPC: G06F3/041 ,  G06F3/042 ,  G06F3/0488

CPC classification number: G06F3/0416 ,  G06F3/0421 ,  G06F3/0488 ,  G06F2203/04104

Abstract: A method of determining a touch gesture is utilized for a touch control system. The method includes detecting at least one first touch point on a touch surface corresponding to the touch gesture at a first time point to generate a first detecting result; detecting at least one second touch point on the touch surface corresponding to the touch gesture at a second time point to generate a second detecting result; obtaining a moving vector and a distributing variation corresponding to the touch gesture according to a relationship of the first detecting result and the second detecting result; and determining the touch gesture on the touch surface according to the moving vector and the distributing variation.

Abstract translation: 用于确定触摸手势的方法用于触摸控制系统。 该方法包括在第一时间点检测与触摸手势相对应的触摸表面上的至少一个第一触摸点以产生第一检测结果; 在第二时间点检测与触摸手势相对应的触摸表面上的至少一个第二触摸点以产生第二检测结果; 根据第一检测结果和第二检测结果的关系，获得与触摸手势相对应的移动矢量和分布变化; 以及根据移动矢量和分布变化确定触摸表面上的触摸手势。

公开(公告)号：US20150145828A1

公开(公告)日：2015-05-28

申请号：US14182299

申请日：2014-02-18

Applicant: Wistron Corporation

Inventor： Kuo-Hsien Lu ,  Yu-Yen Chen

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/0428

Abstract: A sensing method of optical touch, adapted for providing and sensing a sensing beam through at least one optical sensing module, is provided. The sensing method of optical touch includes the following steps. A plurality of sensing pixel zones of the optical sensing module is selected, and a main incident angle is chosen in an incident angle range according to light intensity sensed by each of the selected sensing pixel zones, wherein the sensing beam entering the optical sensing module at the main incident angle has a maximum light intensity. Main incident angles corresponding to the unselected sensing pixel zones are computed according to the main incident angles corresponding to the selected sensing pixel zones.

Abstract translation: 提供了一种用于通过至少一个光学感测模块提供和感测感测光束的光学触摸感测方法。 光学触摸的感测方法包括以下步骤。 选择光学感测模块的多个感测像素区域，并且根据由每个选择的感测像素区域感测的光强度在入射角度范围内选择主入射角，其中，感测光束进入光学感测模块 主入射角度具有最大光强度。 根据与所选择的感测像素区域对应的主入射角度来计算与未选择的感测像素区域对应的主入射角度。

公开(公告)号：US20140368448A1

公开(公告)日：2014-12-18

申请号：US13938240

申请日：2013-07-10

Applicant: Wistron Corporation

Inventor： Yu-Yen Chen ,  Po-Liang Huang ,  Chia-Jui Liu ,  Kuo Hsing Wang

IPC: G06F3/041

CPC classification number: G06F3/0421 ,  G06F3/0416 ,  G06F2203/04106

Abstract: A multi-touch system is provided. In the multi-touch system, there is a plurality of touch sensing sub-systems. The touch sensing sub-systems are arranged in a touch sensing row in sequence and the touch sensing row has a pair of longitudinal sides opposite to each other and a pair of end sides opposite to each other. A light reflective frame is configured on one of the longitudinal sides and both of the end sides. Each of the touch sensing sub-systems comprises at least two sensors arranged at two corners of the corresponding touch sensing sub-system at one longitudinal side opposite to the other longitudinal side having the light reflective frame arranged thereon. A sensing range of both of the sensor covers the corresponding touch sensing sub-system.

Abstract translation: 提供多点触控系统。 在多点触摸系统中，存在多个触摸感测子系统。 触摸感测子系统依次布置在触摸感测行中，并且触摸感测行具有彼此相对的一对纵向侧和彼此相对的一对端侧。 光反射框架构造在纵向侧和两端之一上。 每个触摸感测子系统包括布置在相应的触摸感测子系统的两个角落处的至少两个传感器，该传感子系统在与设置有光反射框架的另一纵向侧相对的一个纵向侧。 两个传感器的感测范围覆盖相应的触摸感应子系统。

公开(公告)号：US20130314378A1

公开(公告)日：2013-11-28

申请号：US13726631

申请日：2012-12-26

Applicant: WISTRON CORPORATION

Inventor： Hsun-Hao Chang ,  Yu-Yen Chen ,  Chun-Chao Chang ,  Shou-Te Wei ,  Sheng-Hsien Hsieh

IPC: G06F3/0488

CPC classification number: G06F3/0428 ,  G06F3/0416 ,  G06F3/0488 ,  G06F3/04883 ,  G06F2203/04104

Abstract: An optical touch module, a method for determining gestures thereof and a computer-readable medium are provided. The method includes the following steps. A plurality of first sensing results outputted by a first optical sensor which continuously senses a touch area from a first corner of the touch area are obtained. A plurality of second sensing results outputted by a second optical sensor which continuously senses the touch area from a second corner of the touch area are obtained. A gesture is determined according a first center of a plurality of first touch reference points of each of the first sensing results and a second center of a plurality of second touch reference points of each of the second sensing results.

Abstract translation: 提供了一种光学触摸模块，用于确定其手势的方法和计算机可读介质。 该方法包括以下步骤。 获得由触摸区域的第一角度连续地感测触摸区域的第一光学传感器输出的多个第一感测结果。 获得由触摸区域的第二角度不断地感测触摸区域的第二光学传感器输出的多个第二检测结果。 根据第一感测结果中的每一个的多个第一触摸参考点的第一中心和每个第二感测结果的多个第二触摸参考点的第二中心来确定手势。

公开(公告)号：US20210280204A1

公开(公告)日：2021-09-09

申请号：US16881735

申请日：2020-05-22

Applicant: Wistron Corporation

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

IPC: G10L21/0232 ,  G10L13/02 ,  G06F17/18

Abstract: A method of determining noise reduction in a signal includes transforming the signal to generate a spectrogram; determining sharp change in a frequency spectrum for each frame in the spectrogram; and comparing a counted number of frames having sharp change with a predetermined value. The signal is determined to be subject to noise reduction if the counted number is greater than the predetermined value.

公开(公告)号：US10964050B2

公开(公告)日：2021-03-30

申请号：US16296170

申请日：2019-03-07

Applicant: Wistron Corporation

Inventor： Chia-Ta Hsieh ,  Yu-Yen Chen

IPC: G06T7/73 ,  G06T7/90 ,  G06T7/10

Abstract: A method for identifying a foreground object in an image and an electronic device are provided. The method includes: dividing a first image and a second image to obtain first image blocks in the first image and second image blocks in the second image; comparing the first image blocks with the second image blocks to obtain a plurality of disparity values respectively corresponding to the first image blocks, and generating a disparity image including the disparity values; comparing each disparity value in the disparity image with a first threshold to form a disparity depth image, and selecting a selected block from the disparity depth image to form a first region; and mapping the first region into the first image to identify a mapped object and identify the object as a foreground object.

公开(公告)号：US20200349382A1

公开(公告)日：2020-11-05

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 ,  G06K9/32 ,  G06T7/73

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：US10783765B2

公开(公告)日：2020-09-22

申请号：US16205238

申请日：2018-11-30

Applicant: Wistron Corporation

Inventor： Yu-Yen Chen ,  Yi-Sheng Chao

IPC: G06K9/00 ,  G08B21/04 ,  G06K9/62 ,  G06T7/246 ,  G06T7/50 ,  G06T7/73

Abstract: A falling detection method and an electronic system using the same are provided. The falling detection method includes: obtaining a video stream, and performing recognition on a person in an image of the video stream to obtain at least one human body feature; calculating based on the human body feature to obtain at least one falling related feature; calculating at least one movement trend in a plurality of directions of the person in the video stream by using an optical flow algorithm; inputting the falling related feature and the movement trend to a falling classifier, such that the falling classifier generates an output result indicating whether a falling event happens to the person; and sending an alarm according to the output result.

公开(公告)号：US20200184673A1

公开(公告)日：2020-06-11

申请号：US16296170

申请日：2019-03-07

Applicant: Wistron Corporation

Inventor： Chia-Ta Hsieh ,  Yu-Yen Chen

IPC: G06T7/73 ,  G06T7/10 ,  G06T7/90

Abstract: A method for identifying a foreground object in an image and an electronic device are provided. The method includes: dividing a first image and a second image to obtain first image blocks in the first image and second image blocks in the second image; comparing the first image blocks with the second image blocks to obtain a plurality of disparity values respectively corresponding to the first image blocks, and generating a disparity image including the disparity values; comparing each disparity value in the disparity image with a first threshold to form a disparity depth image, and selecting a selected block from the disparity depth image to form a first region; and mapping the first region into the first image to identify a mapped object and identify the object as a foreground object.

公开(公告)号：US20180302683A1

公开(公告)日：2018-10-18

申请号：US15677011

申请日：2017-08-15

Applicant: Wistron Corporation

Inventor： Kuo-Hsien Lu ,  Yu-Yen Chen ,  Yen-Kai Chiu

IPC: H04N21/478 ,  H04N21/44 ,  H04N21/435 ,  G06Q30/06

CPC classification number: H04N21/47815 ,  G06Q30/0633 ,  H04L67/26 ,  H04N21/23418 ,  H04N21/2353 ,  H04N21/435 ,  H04N21/44 ,  H04N21/47205 ,  H04N21/4725 ,  H04N21/812 ,  H04N21/84 ,  H04N21/8545

Abstract: Methods for supplying, ordering, and transacting items based on motion images are proposed. The methods are applicable to a server and include the following steps. A first video stream is received from a first electronic device, and at least one item is identified from the first video stream to generate a frame and a tag associated with each item. An editing operation on a first tag is received from the first electronic device to generate first tag data. The first tag and the first frame are combined into the first video stream to generate a composite video stream. The composite video stream is transmitted to a second electronic device. In response to an ordering operation detected on the first item from the second electronic device, first ordering data is generated according to the first tag data to add the first item into an order list of the second electronic device.