公开(公告)号：US20210049771A1

公开(公告)日：2021-02-18

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: G06T7/20

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：US10698536B2

公开(公告)日：2020-06-30

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

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：US20220007947A1

公开(公告)日：2022-01-13

申请号：US16996923

申请日：2020-08-19

Applicant: Wistron Corporation

Inventor： Zheng-De Liu ,  Kuo-Ting Huang

IPC: A61B5/024 ,  A61B5/00

Abstract: A signal processing method, an apparatus and a non-transitory computer readable storage medium are provided. A plurality of segment signals are taken out based on a time series from a physiological signal, and each segment signal is determined as a desirable signal or an undesirable signal. In response to the ith segment signal is determined as the undesirable signal, under the condition of determining that both of the (i−2)th segment signal and the (i+2)th segment signal are the desirable signals, the ith segment signal is reserved. A plurality of instant heart rates are calculated based on the desirable signals and the reserved undesirable signals.

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：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：US11380346B2

公开(公告)日：2022-07-05

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 ,  G06F17/18 ,  G10L13/02

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：US20170010702A1

公开(公告)日：2017-01-12

申请号：US14944234

申请日：2015-11-18

Applicant: Wistron Corporation

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

IPC: G06F3/041

Abstract: A method of detecting a touch position and a touch apparatus thereof are provided. At least three intervally distributed light sensing devices are provided to obtain a plurality of touch information. Based on peak values of the touch information, a total number of touched points is determined. When the total number is larger than 1, touched points on a touch surface are calculated. Touched points being examined corresponding to one of the peak values of a first touch information are obtained. According to distance values related to the touched points being examined, a first and a second to-be-examined touched point are selected. Whether the first and the second to-be-examined touched points are simultaneously corresponding to any one of the peak values of each touch information is determined. If the determination is positive, then a touch position is determined from the first and the second to-be-examined touched points.

Abstract translation: 提供一种检测触摸位置的方法及其触摸装置。 提供至少三个间隔分布的光感测装置以获得多个触摸信息。 基于触摸信息的峰值，确定触摸点的总数。 当总数大于1时，计算触摸面上的触摸点数。 获得对应于第一触摸信息的峰值之一的被检测点。 根据与被检查的触摸点相关的距离值，选择第一和第二待检查的触摸点。 确定第一和第二待检查的触摸点是否同时对应于每个触摸信息的峰值中的任何一个。 如果确定为肯定，则从第一和第二待检查的触摸点确定触摸位置。

公开(公告)号：US20160334937A1

公开(公告)日：2016-11-17

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

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.

Abstract translation: 提供了一种光学触摸装置及其感测方法。 光学触摸装置包括多个光学传感器和处理单元。 光学传感器围绕触摸平面布置并且彼此间隔开。 位于触摸平面一侧的两个相邻的光学传感器被定义为一组光学感测模块，使得光学传感器配对以形成多组光学感测模块。 所述处理单元根据所述光学触摸数据生成与所述多个光学传感模块对应的多个触摸坐标数据，并且确定与各组光学传感模块相对应的触摸坐标数据是否处于至少一个触控坐标数据中， 排除区域对应于每组光学传感模块，并且分别排除触摸排除区域中的触摸坐标数据。

公开(公告)号：US20160110019A1

公开(公告)日：2016-04-21

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

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.

Abstract translation: 提供了一种触摸装置及其校正方法。 通过计算校正块的失真误差量来确定是否分割校正块，以使每个分割校正块的失真误差量小于或等于预设阈值。 获得每个校正块的校正参数集。 因此，在操作过程中，基于校正参数集来执行用户的触摸行为的校正。

公开(公告)号：US12089961B2

公开(公告)日：2024-09-17

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

CPC classification number: A61B5/7221 ,  A61B5/6815 ,  A61B5/7225 ,  A61B5/7246

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.