Patents by Inventor Shih-Che Chien

Shih-Che Chien 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: 11924039
    Abstract: Provided are a system and a method for optimization of network function management and computer readable medium thereof that develop an OAM system architecture compatible with a standard MANO framework set by ETSI, so as to effectively integrate and manage the resources and situation configurations of the network elements (including VNF and CNF) of different manufacturers. Therefore, containment management for various network elements may be flexibly integrated, advantages of the standard MANO framework may be preserved, cost for customized development of various OAM systems and the information transmission therefrom may be reduced, and overall efficiency is increased.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: March 5, 2024
    Assignee: CHUNGHWA TELECOM CO., LTD.
    Inventors: Yuan-Mao Hung, Mao-Yao Lee, Chien-Hua Lee, Shih-Che Chien
  • Publication number: 20230136061
    Abstract: Provided are a system and a method for optimization of network function management and computer readable medium thereof that develop an OAM system architecture compatible with a standard MANO framework set by ETSI, so as to effectively integrate and manage the resources and situation configurations of the network elements (including VNF and CNF) of different manufacturers. Therefore, containment management for various network elements may be flexibly integrated, advantages of the standard MANO framework may be preserved, cost for customized development of various OAM systems and the information transmission therefrom may be reduced, and overall efficiency is increased.
    Type: Application
    Filed: September 23, 2022
    Publication date: May 4, 2023
    Inventors: Yuan-Mao Hung, Mao-Yao Lee, Chien-Hua Lee, Shih-Che Chien
  • Patent number: 11485331
    Abstract: A surface adaptation method suitable for a vehicle includes evaluating a plurality of longitudinal forces with respect to a plurality of sampling points, evaluating a plurality of wheel slips with respect to the plurality of sampling points, determining a maximum longitudinal force from the plurality of longitudinal forces, and determining a wheel slip threshold from the plurality of wheel slips. The wheel slip threshold corresponds to the maximum longitudinal force.
    Type: Grant
    Filed: October 13, 2019
    Date of Patent: November 1, 2022
    Assignee: National Chung-Shan Institute of Science and Technology
    Inventors: Ming-Kai Gan, Bo-Chiuan Chen, Shih-Che Chien, Chien-Hao Hsiao, Yu-Sung Hsiao, Feng-Chia Chang
  • Patent number: 11295160
    Abstract: An image adaptive feature extraction method includes dividing an image into a plurality of blocks, performing a feature extraction processing on the plurality of blocks, and obtaining a block feature from each of the plurality of blocks after the feature extraction processing; calculating each block feature by means of a support vector machine (SVM) classifier, wherein each block feature is calculated to obtain a hyperplane normal vector; setting a threshold value, determining the block feature according to the hyperplane normal vector, recording the block as an adaptive feature block when a value of the hyperplane normal vector is higher than the threshold value, and integrating each adaptive feature block to form an adaptive feature image. Because an image adaptive feature extraction process is performed before a pedestrian image detection is calculated, and effective feature data is then selected, computational efficiency is boosted and detection pedestrian error probability is reduced.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: April 5, 2022
    Assignee: National Chung-Shan Institute of Science and Technology
    Inventors: Shih-Shinh Huang, Shih-Che Chien, Feng-Chia Chang, Yu-Sung Hsiao, Chien-Hao Hsiao
  • Publication number: 20210107440
    Abstract: A surface adaptation method suitable for a vehicle includes evaluating a plurality of longitudinal forces with respect to a plurality of sampling points, evaluating a plurality of wheel slips with respect to the plurality of sampling points, determining a maximum longitudinal force from the plurality of longitudinal forces, and determining a wheel slip threshold from the plurality of wheel slips. The wheel slip threshold corresponds to the maximum longitudinal force.
    Type: Application
    Filed: October 13, 2019
    Publication date: April 15, 2021
    Inventors: Ming-Kai Gan, Bo-Chiuan Chen, Shih-Che Chien, Chien-Hao Hsiao, Yu-Sung Hsiao, Feng-Chia Chang
  • Patent number: 10884108
    Abstract: A light detection and ranging system comprises an optical transmitter for beam scanning on a scan region, and receiving reflected light from the scan region; and an optical receiver for directing the reflected light for signal conversion. The optical transmitter includes a beam refractive unit including optical refractive devices, rotatably disposed about a rotation axis, for directing a collimated laser beam from a first optical path towards a direction depending on rotation angles of the optical refractive devices; and a motion unit for actuating relative motion of the optical refractive devices so as to perform beam scanning towards directions on the scan region. The optical receiver includes an off-axis reflective unit, disposed in the first optical path, for directing the reflected light towards a second optical path; and a light detection unit, disposed in the second optical path, for performing signal conversion on the reflected light.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 5, 2021
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chao-Wen Liang, Shih-Che Chien, Yu-Sung Hsiao
  • Patent number: 10769421
    Abstract: A method for performing pedestrian detection with aid of light detection and ranging (LIDAR) is provided. The method includes: obtaining 3-dimensional (3D) point cloud data through the LIDAR; performing ground separation processing on the 3D point cloud data to remove ground information; performing object extraction processing on the 3D point cloud data to obtain 3D point cloud chart that includes pedestrian candidate point cloud group; performing 2-dimensional (2D) mapping processing on the 3D point cloud chart to obtain 2D chart; and extracting 3D feature and 2D feature from the 3D point cloud chart and the 2D chart, respectively, and utilizing the 3D feature and the 2D feature to determine location of the pedestrian. According to the method, image data obtained by the LIDAR may be enhanced, the method may distinguish between pedestrian far away and environment blocks, and pedestrian recognition in nighttime or in bad weather may be improved.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: September 8, 2020
    Assignee: National Chung-Shan Institute of Science and Technology
    Inventors: Kai-Lung Hua, Shih-Che Chien, Feng-Chia Chang, Hsueh-Ling Tang, Chien-Hao Hsiao, Yu-Sung Hsiao
  • Publication number: 20200191971
    Abstract: A vehicle detection method includes acquiring a three-dimensional (3D) image with a plurality of point clouds; mapping the 3D image onto a two-dimensional (2D) image; interpolating the 2D image according to a distance between a camera and a first point cloud of the plurality of point clouds; transforming the 3D image into a plurality of voxels, and extracting a plurality of 3D deep features and a plurality of 2D deep features according to the plurality of voxels; and determining a detection result according to a classification of the plurality of 3D deep features and the plurality of 2D deep features.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 18, 2020
    Inventors: Kai-Lung Hua, Shih-Che Chien, Feng-Chia Chang, Ding-Wei Zhuang, Yu-Sung Hsiao, Chien-Hao Hsiao
  • Publication number: 20200160088
    Abstract: An image adaptive feature extraction method includes dividing an image into a plurality of blocks, performing a feature extraction processing on the plurality of blocks, and obtaining a block feature from each of the plurality of blocks after the feature extraction processing; calculating each block feature by means of a support vector machine (SVM) classifier, wherein each block feature is calculated to obtain a hyperplane normal vector; setting a threshold value, determining the block feature according to the hyperplane normal vector, recording the block as an adaptive feature block when a value of the hyperplane normal vector is higher than the threshold value, and integrating each adaptive feature block to form an adaptive feature image. Because an image adaptive feature extraction process is performed before a pedestrian image detection is calculated, and effective feature data is then selected, computational efficiency is boosted and detection pedestrian error probability is reduced.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 21, 2020
    Inventors: Shih-Shinh Huang, Shih-Che Chien, Feng-Chia Chang, Yu-Sung Hsiao, Chien-Hao Hsiao
  • Patent number: 10621466
    Abstract: A method for extracting features of a thermal image is provided. The method includes: reading a thermal image, and dividing the thermal image into a plurality of block images; and extracting a histogram of oriented gradient (HOG) feature histogram from each of the plurality of block images, and transforming the HOG feature histogram of each of the plurality of block images into a symmetric weighting HOG (SW-HOG) feature histogram. The SW-HOG feature histogram is obtained by multiplying a histogram of gradient intensity distribution by a block weighting. The method increases weightings of blocks which cover human contours and reduces weightings of blocks of an internal region of a human appearance through analyzing thermal lightness difference of regions within blocks, to reduce the influence of clothes in the internal region and the influence of the background region.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: April 14, 2020
    Assignee: National Chung-Shan Institute of Science and Technology
    Inventors: Shih-Shinh Huang, Shih-Che Chien, Feng-Chia Chang, Chien-Hao Hsiao, Yu-Sung Hsiao
  • Patent number: 10437390
    Abstract: A frame assembly is disclosed, which is mounted on an object surface. The frame assembly includes a frame and at least a frame fastening assembly. The frame fastening assembly includes a first fastening member, a second fastening member and an anti-skid member. The first fastening member has a first magnetic element and an adhered surface, and the adhered surface adheres on the object surface. The second fastening member has a second magnetic element, a supporting portion and a fastening portion, the second magnetic element magnetic attracts the first magnetic element, the supporting portion bears the frame and the fastening portion covers parts lateral surface of the frame. The anti-skid member is disposed on a surface of the second fastening member, wherein the surface is opposite to the fastening portion.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 8, 2019
    Assignee: WISTRON CORPORATION
    Inventors: Po-Liang Huang, Shih-Che Chien
  • Patent number: 10408923
    Abstract: A laser radar device comprises a laser projecting system and a laser radar detecting system. The laser projecting system comprises a laser diode; and a light source orientation adjustment unit comprising a collimating lens and a Powell lens to modulate the angle at which the first incident laser beam is projected onto an object. The laser radar detecting system comprises at least two laser radar detection units disposed in the horizontal direction and vertical direction of the object, respectively. The laser radar detection units each comprise a wedge-shaped lens, an aspherical lens system and an optical detector. By designing optical parameters of the wedge-shaped lens and stacking the laser radar detection units in the horizontal direction and vertical direction, it is feasible to facilitate overall device manufacturing and processing, meet R&D needs, and adjust an optical system in its entirety easily.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: September 10, 2019
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chao-Wen Liang, Li-Tsun Wang, Shih-Che Chien, Yu-Sung Hsiao
  • Publication number: 20190162828
    Abstract: A light detection and ranging system comprises an optical transmitter for beam scanning on a scan region, and receiving reflected light from the scan region; and an optical receiver for directing the reflected light for signal conversion. The optical transmitter includes a beam refractive unit including optical refractive devices, rotatably disposed about a rotation axis, for directing a collimated laser beam from a first optical path towards a direction depending on rotation angles of the optical refractive devices; and a motion unit for actuating relative motion of the optical refractive devices so as to perform beam scanning towards directions on the scan region. The optical receiver includes an off-axis reflective unit, disposed in the first optical path, for directing the reflected light towards a second optical path; and a light detection unit, disposed in the second optical path, for performing signal conversion on the reflected light.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 30, 2019
    Inventors: CHAO-WEN LIANG, SHIH-CHE CHIEN, YU-SUNG HSIAO
  • Publication number: 20190164005
    Abstract: A method for extracting features of a thermal image is provided. The method includes: reading a thermal image, and dividing the thermal image into a plurality of block images; and extracting a histogram of oriented gradient (HOG) feature histogram from each of the plurality of block images, and transforming the HOG feature histogram of each of the plurality of block images into a symmetric weighting HOG (SW-HOG) feature histogram. The SW-HOG feature histogram is obtained by multiplying a histogram of gradient intensity distribution by a block weighting. The method increases weightings of blocks which cover human contours and reduces weightings of blocks of an internal region of a human appearance through analyzing thermal lightness difference of regions within blocks, to reduce the influence of clothes in the internal region and the influence of the background region.
    Type: Application
    Filed: August 9, 2018
    Publication date: May 30, 2019
    Inventors: Shih-Shinh Huang, Shih-Che Chien, Feng-Chia Chang, Chien-Hao Hsiao, Yu-Sung Hsiao
  • Publication number: 20190163968
    Abstract: A method for performing pedestrian detection with aid of light detection and ranging (LIDAR) is provided. The method includes: obtaining 3-dimensional (3D) point cloud data through the LIDAR; performing ground separation processing on the 3D point cloud data to remove ground information; performing object extraction processing on the 3D point cloud data to obtain 3D point cloud chart that includes pedestrian candidate point cloud group; performing 2-dimensional (2D) mapping processing on the 3D point cloud chart to obtain 2D chart; and extracting 3D feature and 2D feature from the 3D point cloud chart and the 2D chart, respectively, and utilizing the 3D feature and the 2D feature to determine location of the pedestrian. According to the method, image data obtained by the LIDAR may be enhanced, the method may distinguish between pedestrian far away and environment blocks, and pedestrian recognition in nighttime or in bad weather may be improved.
    Type: Application
    Filed: August 8, 2018
    Publication date: May 30, 2019
    Inventors: Kai-Lung Hua, Shih-Che Chien, Feng-Chia Chang, Hsueh-Ling Tang, Chien-Hao Hsiao, Yu-Sung Hsiao
  • Patent number: 10262223
    Abstract: A method of speeding up image detection, adapted to increase a speed of detecting a target image and enhance efficiency of image detection, comprises the steps of capturing an image; retrieving a plurality of characteristic points of the image; creating a region of interest (ROI) centered at the characteristic points each; creating a plurality of search point scan windows corresponding to the ROIs, respectively; calculating target hit scores of the characteristic points and the search point scan windows; comparing the target hit scores of the characteristic points and the search point scan windows to obtain an ROI most likely to have a target image; calculating centroid coordinates of the ROI by a centroid shift weight equation; and narrowing a scope of ROI search according to a location of the centroid coordinates and reducing a displacement between the search points.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: April 16, 2019
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chun-Wei Hsieh, Shih-Che Chien, Feng-Chia Chang, Chien-Hao Hsiao
  • Patent number: 10261181
    Abstract: A laser radar system capable of active polarization comprises a signal processing unit for sending a control signal; a laser emitting unit for emitting a first laser to a target after receiving the control signal, wherein the laser emitting unit comprises a liquid crystal polarization driver and a liquid crystal polarization component group, and the liquid crystal polarization driver controls a phase delay of the liquid crystal polarization component group to therefore change a polarized state of the first laser; and a laser receiving unit for receiving a second laser reflected off the target and analyzing polarization information of the second laser through the signal processing unit to evaluate surface characteristics of the target.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: April 16, 2019
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Te-Yuan Chung, Ruoh-Rou Chang, Shih-Che Chien, Yu-Sung Hsiao
  • Patent number: 10198657
    Abstract: An all-weather thermal-image pedestrian detection method includes (a) capturing diurnal thermal images and nocturnal thermal images of a same pedestrian and non-pedestrian object in a same defined block to create a sample database of thermal images, wherein the sample database comprises pedestrian samples and non-pedestrian samples; (b) performing LBP encoding on the pedestrian samples and the non-pedestrian samples, wherein complementary LBP codes in the same defined block are treated as identical LBP codes; (c) expressing the LBP codes in the same defined block as features by a gradient direction histogram (HOG) to obtain feature training samples of the pedestrian samples and the non-pedestrian samples; (d) entering the feature training samples into a SVM to undergo training by Adaboost so as to form a strong classifier; and (e) effectuating pedestrian detection by searching the strong classifiers in thermal images with sliding window technique to detect for presence of pedestrians.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: February 5, 2019
    Assignee: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Shih-Shinh Huang, Shih-Che Chien, Feng-Chia Chang, Chien-Hao Hsiao, Yu-Sung Hsiao
  • Publication number: 20180364354
    Abstract: A laser radar system capable of active polarization comprises a signal processing unit for sending a control signal; a laser emitting unit for emitting a first laser to a target after receiving the control signal, wherein the laser emitting unit comprises a liquid crystal polarization driver and a liquid crystal polarization component group, and the liquid crystal polarization driver controls a phase delay of the liquid crystal polarization component group to therefore change a polarized state of the first laser; and a laser receiving unit for receiving a second laser reflected off the target and analyzing polarization information of the second laser through the signal processing unit to evaluate surface characteristics of the target.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 20, 2018
    Inventors: TE-YUAN CHUNG, RUOH-ROU CHANG, SHIH-CHE CHIEN, YU-SUNG HSIAO
  • Publication number: 20180365511
    Abstract: A method of speeding up image detection, adapted to increase a speed of detecting a target image and enhance efficiency of image detection, comprises the steps of capturing an image; retrieving a plurality of characteristic points of the image; creating a region of interest (ROI) centered at the characteristic points each; creating a plurality of search point scan windows corresponding to the ROIs, respectively; calculating target hit scores of the characteristic points and the search point scan windows; comparing the target hit scores of the characteristic points and the search point scan windows to obtain an ROI most likely to have a target image; calculating centroid coordinates of the ROI by a centroid shift weight equation; and narrowing a scope of ROI search according to a location of the centroid coordinates and reducing a displacement between the search points.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 20, 2018
    Inventors: CHUN-WEI HSIEH, SHIH-CHE CHIEN, FENG-CHIA CHANG, CHIEN-HAO HSIAO