Patents by Inventor Yu-Yen Chen

Yu-Yen Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11182636
    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.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: November 23, 2021
    Assignee: Wistron Corporation
    Inventors: Po-Chun Chen, Yu-Yen Chen, Kuo-Ting Huang
  • Patent number: 11126306
    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.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: September 21, 2021
    Assignee: Wistron Corporation
    Inventors: Kuo-Hsien Lu, Yu-Yen Chen
  • Publication number: 20210280204
    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.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 9, 2021
    Inventors: Ching-An Cho, Yu-Yen Chen, Kuo-Ting Huang
  • Patent number: 10965916
    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.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: March 30, 2021
    Assignee: Wistron Corporation
    Inventors: Zhen-Te Liu, Yu-Yen Chen
  • Patent number: 10964050
    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.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 30, 2021
    Assignee: Wistron Corporation
    Inventors: Chia-Ta Hsieh, Yu-Yen Chen
  • Publication number: 20210049771
    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.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 18, 2021
    Applicant: Wistron Corporation
    Inventors: Kuo-Ting Huang, Zhen-Te Liu, Yu-Yen Chen, Ching-An Cho
  • Patent number: 10922818
    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.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: February 16, 2021
    Assignee: Wistron Corporation
    Inventors: Kuo-Ting Huang, Zhen-Te Liu, Yu-Yen Chen, Ching-An Cho
  • Publication number: 20200349382
    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.
    Type: Application
    Filed: August 7, 2019
    Publication date: November 5, 2020
    Applicant: Wistron Corporation
    Inventors: Po-Chun Chen, Yu-Yen Chen, Kuo-Ting Huang
  • Publication number: 20200310593
    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.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Applicant: Wistron Corporation
    Inventors: Kuo-Hsien Lu, Yu-Yen Chen
  • Patent number: 10783765
    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.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: September 22, 2020
    Assignee: Wistron Corporation
    Inventors: Yu-Yen Chen, Yi-Sheng Chao
  • Patent number: 10719174
    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.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: July 21, 2020
    Assignee: Wistron Corporation
    Inventors: Kuo-Hsien Lu, Yu-Yen Chen
  • Patent number: 10699107
    Abstract: An image detection method for determining the postures of a user includes: obtaining a plurality of images of a user; determining whether the user moves; and when the user is determined to be moving, calculating whether the amount of images is greater than a first predetermined value or not, calculating whether or not the amount of images of the user in the region of interest (ROI) is greater than a second predetermined value, and calculating whether or not the amount of images of the user not in the ROI is greater than a third predetermined value, in order to determine the postures of the user.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 30, 2020
    Assignee: Wistron Corp.
    Inventors: Po Chun Chen, Yu-Ren Lai, Ching-An Cho, Kuo Ting Huang, Yu-Yen Chen
  • Patent number: 10698536
    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.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: June 30, 2020
    Assignee: Wistron Corporation
    Inventors: You-Jyun Syu, Ching-An Cho, Kuo-Ting Huang, Yu-Yen Chen
  • Publication number: 20200195894
    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.
    Type: Application
    Filed: March 21, 2019
    Publication date: June 18, 2020
    Applicant: Wistron Corporation
    Inventors: Zhen-Te Liu, Yu-Yen Chen
  • Patent number: 10685220
    Abstract: An image detection method for determining the posture of a user includes: obtaining a reference image of the user in a region of interest (ROI); obtaining a test image of user at the ROI; executing a feature matching analysis of the test image which compares the feature parameter of the test image and the feature parameter of the reference image to determine the similarity information of the test image and the reference image; and executing a pixel distribution analysis of the test image to obtain user pixel distribution information; and determining the posture of the user based on the user similarity information and the user pixel distribution information.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: June 16, 2020
    Assignee: Wistron Corp.
    Inventors: Yu-Ren Lai, Po Chun Chen, Ching-An Cho, Kuo Ting Huang, Yu-Yen Chen
  • Publication number: 20200184673
    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.
    Type: Application
    Filed: March 7, 2019
    Publication date: June 11, 2020
    Applicant: Wistron Corporation
    Inventors: Chia-Ta Hsieh, Yu-Yen Chen
  • Patent number: 10627917
    Abstract: An object-sensing apparatus and an object-sensing method are provided. The object-sensing apparatus includes a processing unit, a first body having a first depth recognition module and a second body having a second depth recognition module. A sensing range of the first depth recognition module covers at least a part of the second body. A sensing range of the second depth recognition module covers at least a part of the first body. The sensing ranges of the first and the second depth recognition modules form a virtual sensing space, and the first and the second depth recognition modules generate a plurality of pieces of location information by sensing an object in the virtual sensing space. The processing unit generates spatial location information of the object in the virtual sensing space according to the plurality of pieces of location information.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: April 21, 2020
    Assignee: Wistron Corporation
    Inventors: Chia-Chang Hou, Yu-Yen Chen, Po-Liang Huang
  • Publication number: 20200090484
    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.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 19, 2020
    Applicant: Wistron Corporation
    Inventors: Yu-Yen Chen, Yi-Sheng Chao
  • Patent number: 10510248
    Abstract: An auxiliary identification device for indicator objects and an auxiliary identification and display method therefor are provided. The auxiliary identification device includes a camera module, a controller, and a display. The camera module is configured to obtain a video in a first direction. The controller is coupled to the camera module and is configured to capture and identify multiple indicator objects in the video. Each of the indicator objects includes indication information. The controller sorts the indicator objects to determine a priority display order of the indicator objects, and further generates a display image signal according to the priority display order. The display is coupled to the controller and is configured to sequentially display the indicator objects according to the display image signal.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: December 17, 2019
    Assignee: Wistron Corporation
    Inventors: Chia-Chang Hou, Yu-Yen Chen
  • Patent number: 10488989
    Abstract: A touch input system includes a touch surface, a reflective structure, and a touch-position generating device. The reflective structure is disposed to surround the touch surface and protrude out the touch surface. The touch-position generating device includes a pen-like body, a lighting and receiving module disposed in the pen-like body, and a processing module. The lighting and receiving module and the processing module are connected in communication. When the touch input system is in operation, the lighting and receiving module emits light toward the reflective structure and receives the light that is reflected by the reflective structure relative to the touch surface. Then, the processing module determines a touch position of the pen-like body on the touch surface according to the received light. Thereby, the touch-position generating device can perform the determination of the touch position independently from the operation of a touch panel or device providing the touch surface.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: November 26, 2019
    Assignee: Wistron Corporation
    Inventors: Chia-Ta Hsieh, Yu-Yen Chen