公开(公告)号：US20220160308A1

公开(公告)日：2022-05-26

申请号：US17145375

申请日：2021-01-10

Applicant: Wistron Corporation

Inventor： Hsuan-Tsung Chang ,  Kuo-Ting Huang ,  Ching-An Cho ,  Hao-Gong Chou

IPC: A61B5/00

Abstract: The present invention provides a signal quality detection method for an ear-chip physiological measurement device. The signal quality detection method includes receiving a sensing signal from the ear-clip physiological measurement device; filtering the sensing signal to generate a pre-processed signal; calculating a physiological index according to the pre-processed signal; and calculating a similarity of a red light alternating current (AC) component and an infrared light AC component of the pre-processed signal and a plurality of correlation coefficients of the red light AC component, and generating a reliability index of the physiological index accordingly. The reliability index indicates one of a plurality of signal qualities.

公开(公告)号：US10922822B2

公开(公告)日：2021-02-16

申请号：US16154726

申请日：2018-10-09

Applicant: Wistron Corporation

Inventor： Ching-An Cho ,  Kuo-Ting Huang

IPC: G06K9/00 ,  G06T7/246

Abstract: An image analysis method applicable to an electronic system is provided. The electronic system includes an image capture device. The image analysis method includes: obtaining a plurality of images captured by the image capture device; performing a motion detection on the plurality of images to determine whether the images include a motion; and determining whether a target enters the preset scenery or leaves the preset scenery in response to a determination that the plurality of images include the motion according to the motion detection.

公开(公告)号：US10922818B1

公开(公告)日：2021-02-16

申请号：US16656584

申请日：2019-10-18

Applicant: Wistron Corporation

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

IPC: G06T7/00 ,  G06T7/20

Abstract: A method and a computer system for object tracking are provided. The method includes the following steps. An image sequence including multiple images with a target object is obtained. A labelling operation corresponding to the target object in first two images and last two images in the image sequence is received to respectively generate four ground truth labels of the target object. A forward tracking of the target object is performed on the image sequence in time series according to the ground truth labels of the first two images to obtain a forward tracking result. A backward tracking of the target object is performed on the image sequence in time series according to the ground truth labels of the last two images to obtain a backward tracking result. The forward and the backward tracking results are compared to accordingly generate a final tracking result of the target object.

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：US20190385314A1

公开(公告)日：2019-12-19

申请号：US16154726

申请日：2018-10-09

Applicant: Wistron Corporation

Inventor： Ching-An Cho ,  Kuo-Ting Huang

IPC: G06T7/246

Abstract: An image analysis method applicable to an electronic system is provided. The electronic system includes an image capture device. The image analysis method includes: obtaining a plurality of images captured by the image capture device; performing a motion detection on the plurality of images to determine whether the images include a motion; and determining whether a target enters the preset scenery or leaves the preset scenery in response to a determination that the plurality of images include the motion according to the motion detection.

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.