Patents by Inventor Cheng-Feng Wang

Cheng-Feng Wang 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).

  • Publication number: 20250074444
    Abstract: A method for early warning a blind area of a vehicle. In the method, the electronic device obtains at least one target image acquired by at least one camera of the vehicle. The electronic device further determines parameters of at least one target object in each of the at least one target image and a three-dimensional detection frame for each of the at least one target object based on the parameters. The electronic device further obtains a target detection frame of each of the at least one target object in a top view image of a plane where the vehicle is located by projecting the three-dimensional detection frame into the top view image and outputs alert information in response that an overlapped area exists between the target detection frame and a preset blind area of the top view image.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 6, 2025
    Inventors: CHENG-FENG WANG, PO-CHUNG WANG, LI-CHE LIN, YEN-YI LIN
  • Patent number: 12236697
    Abstract: A method of identifying characters in images extracts features of a detection image including characters. Enhancement processing is performed on the detection image according to the features to obtain an enhanced image. Closed edges of the characters are detected in the enhanced image. First rectangular outlines of the characters are determined according to the closed edges. The first rectangular outlines are corrected to obtain second rectangular outlines. The characters are cropped from the detection image according to the second rectangular outlines. The method identifies characters in images accurately and rapidly.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: February 25, 2025
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Cheng-Feng Wang, Li-Che Lin, Hui-Xian Yang
  • Patent number: 12205383
    Abstract: A method of recognizing target objects in images obtains a detection image of a target object. A template image is generated according to the target object. The detection image is compared with the template image to obtain a comparison result. Candidate regions of the target object are determined in the detection image according to the comparison result. At least one target region of the target object is obtained from the candidate regions. The method detects target objects in images very rapidly.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: January 21, 2025
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Cheng-Feng Wang, Hui-Xian Yang, Li-Che Lin
  • Patent number: 12118808
    Abstract: An image generation method obtains an original image. A character area, a background area, and a position of each flawless character in the original image are determined. The character area is segmented to obtain a first image of each flawless character. A background is removed from the first image to obtain a second image. First image processing is performed on the second image to obtain a third image. Second image processing is performed on the second image to obtain fourth images. Third image processing is performed on the fourth images respectively to obtain fifth images. A similarity between each fifth image and the third image is calculated. When the similarity is greater than a defect threshold, a background image is segmented. Brightness of the background image is adjusted. The target fourth image and adjusted background image are synthesized. The method can generate images with defective characters quickly.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: October 15, 2024
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Cheng-Feng Wang, Po-Chung Wang, Li-Che Lin
  • Publication number: 20240142935
    Abstract: A method for detecting workpiece based on homogeneous multi-core architecture is illustrate. The method comprises: obtaining detecting images of detecting workpieces; identifying detecting areas of the detecting workpieces in the detecting images; dividing the preset rotation angle to obtain the rotation accuracy and initial rotation angles; based on each of the initial rotation angles, rotating the detecting areas to obtain a rotation area of each of the initial rotation angles; calculating similarity values between each of the rotation areas and a preset qualified area, and determining a largest similarity value as the target similarity value; and when the rotation accuracy is greater than or equal to a preset accuracy, identifying whether the detecting workpiece is a qualified workpiece according to the target similarity value and a preset similarity threshold.
    Type: Application
    Filed: February 24, 2023
    Publication date: May 2, 2024
    Inventors: CHENG-FENG WANG, LI-CHE LIN, YEN-YI LIN
  • Patent number: 11971959
    Abstract: A data test method, an electronic device, and a storage medium are provided. In the data test method, based on a Density-Based Spatial Clustering of Applications with Noise (DBSCAN), at least one cluster is obtained by removing discrete points in the target data and performing clustering, an calculation result is obtained by performing a regression analysis on the target data with the objective function, and parameters to be tested are verified according to the calculation result. Utilizing the data test method, objective function can be used to perform verification and residual analysis on the target data, related descriptions are be repeated here.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: April 30, 2024
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Cheng-Feng Wang
  • Publication number: 20240029423
    Abstract: A method for detecting defect in image is provided. The method obtains a number of original images, determines a first reference image from the original images, and performs a histogram matching on the original images excluding the first reference image according to the first reference image, to obtain a plurality of matched images. The method further generates a synthesized image according to pixel intensities of the matched images and pixel intensities of the first reference image; and uses the synthesized image as a second reference image to perform an image comparison with a test image, to generate a result of defect detection. A related device and a related non-transitory storage medium are also provided.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Inventors: LI-CHE LIN, YEN-YI LIN, CHENG-FENG WANG
  • Publication number: 20230368420
    Abstract: A method, a device, and a non-transitory computer readable medium for detecting label on curved container, includes obtaining a first image, the first image comprising a label on the curved container; obtaining a plurality of reference points in the first image; obtaining a first width of the curved container and first position data of the label according to the plurality of reference points; determining whether the curved container is rotated according to the first width and a predetermined standard width; when the curved container rotated being determined, predicting a second width of the curved container according to the firs position data and a predetermined regression equation; and determining whether the label is offset according to the first width and the second width.
    Type: Application
    Filed: May 8, 2023
    Publication date: November 16, 2023
    Inventor: CHENG-FENG WANG
  • Publication number: 20230316497
    Abstract: A method for detecting apparent defects in images of products acquires an original image of the product. Defects apparent in the original image are automatically detected by an automatic optical detection apparatus. When the original image comprises at least one apparent defect, the original image is cut into at least one partial image centered on the at least one apparent defect. Each partial image contains one defect. By determining whether the at least one partial image indicates a real defect or a false or ghost defect, a result of desired image (for further analysis), or undesired image (for discarding) is output. The original image is deemed a desired image or an undesired image based on the result. A defect detection system applying the method is also disclosed.
    Type: Application
    Filed: May 18, 2022
    Publication date: October 5, 2023
    Inventors: CHENG-FENG WANG, YING-TIEN HUANG, YEN-YI LIN
  • Publication number: 20230093969
    Abstract: This application provides a method of detecting printing defects. The method includes obtaining a first image of each character in a reference image. A third image of each character is obtained based on the first image of each character, a fourth image of each character is obtained based on a second image of each character obtained from an image to be detected. Once a fifth image of each character is obtained based on the third image of each character, a sixth image of each character is obtained according to the fourth image and the fifth image of each character, a detection result of each character in the image to be detected is determined according to the fifth image and the sixth image of the each character.
    Type: Application
    Filed: June 30, 2022
    Publication date: March 30, 2023
    Inventors: YEN-YI LIN, CHENG-FENG WANG, LI-CHE LIN
  • Publication number: 20230092072
    Abstract: A method of detecting misprints obtains a reference image of perfectly-formed characters and a test image showing the same characters. First image processing is performed on the reference image to obtain a first image, and first image processing is performed on the test image to obtain a second image. A second image processing is performed on the first image to obtain a first outline image of each of first characters in the reference image, and the second image processing is performed on the second image to obtain a second outline image of each of second characters in the test image. A corresponding first outline image is determined for the second outline image. A similarity between the corresponding first outline image and the second outline image is calculated. Accordingly, a detection result of the second outline image is determined. The method can detect character flaw accurately.
    Type: Application
    Filed: May 19, 2022
    Publication date: March 23, 2023
    Inventors: CHENG-FENG WANG, LI-CHE LIN
  • Publication number: 20230043408
    Abstract: An image generation method obtains an original image. A character area, a background area, and a position of each flawless character in the original image are determined. The character area is segmented to obtain a first image of each flawless character. A background is removed from the first image to obtain a second image. First image processing is performed on the second image to obtain a third image. Second image processing is performed on the second image to obtain fourth images. Third image processing is performed on the fourth images respectively to obtain fifth images. A similarity between each fifth image and the third image is calculated. When the similarity is greater than a defect threshold, a background image is segmented. Brightness of the background image is adjusted. The target fourth image and adjusted background image are synthesized. The method can generate images with defective characters quickly.
    Type: Application
    Filed: June 2, 2022
    Publication date: February 9, 2023
    Inventors: CHENG-FENG WANG, PO-CHUNG WANG, LI-CHE LIN
  • Publication number: 20230023611
    Abstract: A method of identifying characters in images extracts features of a detection image including characters. Enhancement processing is performed on the detection image according to the features to obtain an enhanced image. Closed edges of the characters are detected in the enhanced image. First rectangular outlines of the characters are determined according to the closed edges. The first rectangular outlines are corrected to obtain second rectangular outlines. The characters are cropped from the detection image according to the second rectangular outlines. The method identifies characters in images accurately and rapidly.
    Type: Application
    Filed: May 18, 2022
    Publication date: January 26, 2023
    Inventors: CHENG-FENG WANG, LI-CHE LIN, HUI-XIAN YANG
  • Publication number: 20230005280
    Abstract: A method of recognizing target objects in images obtains a detection image of a target object. A template image is generated according to the target object. The detection image is compared with the template image to obtain a comparison result. Candidate regions of the target object are determined in the detection image according to the comparison result. At least one target region of the target object is obtained from the candidate regions. The method detects target objects in images very rapidly.
    Type: Application
    Filed: May 18, 2022
    Publication date: January 5, 2023
    Inventors: CHENG-FENG WANG, HUI-XIAN YANG, LI-CHE LIN
  • Publication number: 20210383162
    Abstract: A data test method, an electronic device, and a storage medium are provided. In the data test method, based on a Density-Based Spatial Clustering of Applications with Noise (DBSCAN), at least one cluster is obtained by removing discrete points in the target data and performing clustering, an calculation result is obtained by performing a regression analysis on the target data with the objective function, and parameters to be tested are verified according to the calculation result. Utilizing the data test method, objective function can be used to perform verification and residual analysis on the target data, related descriptions are be repeated here.
    Type: Application
    Filed: May 28, 2021
    Publication date: December 9, 2021
    Inventor: CHENG-FENG WANG
  • Patent number: 8260111
    Abstract: A method of button routing editing for a storage medium menu containing at least one button is provided. The method includes steps of (a) displaying a routing reminder on a button with an incorrect routing status; (b) selecting at least one button; (c) displaying a routing controller on the selected button, wherein the routing controller comprises a first control button, a second control button, a third control button and a fourth control button; and (d) selecting one of the above-mentioned control buttons, and then selecting a target button to set a routing direction target for the selected control button to the target button, wherein after the steps (b)-(d) are performed, if there exists any button with an incorrect routing status, the routing reminder is displayed thereon, and if there exists any button with a correct routing status, no routing reminder is displayed thereon.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: September 4, 2012
    Assignee: Corel Corporation
    Inventors: Cheng-Feng Wang, Jia-sheng Su, Sheng-Wen Bai
  • Patent number: 7577678
    Abstract: A playable volume generation method is provided. A playlist includes a plurality of playlist items, each targeting one of the playable items to be displayed according to the arrangement of the playlist items. A designated inter-item position on the playlist for inserting a new playlist item is received. A former playlist item and a later playlist item adjacent to the new playlist item are automatically retrieved. A second playable item targeted by the new playlist item is automatically generated to simulate a transition effect transitioning from the end of the playable item targeted by the former playlist item to the beginning of the playable item targeted by the later playlist item.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: August 18, 2009
    Assignee: Corel TW Corp.
    Inventors: Cheng-Feng Wang, Chia-Sheng Su, Sheng-Wen Bai
  • Publication number: 20070266317
    Abstract: A method of button routing editing for a storage medium menu containing at least one button is provided. The method includes steps of (a) displaying a routing reminder on a button with an incorrect routing status; (b) selecting at least one button; (c) displaying a routing controller on the selected button, wherein the routing controller comprises a first control button, a second control button, a third control button and a fourth control button; and (d) selecting one of the above-mentioned control buttons, and then selecting a target button to set a routing direction target for the selected control button to the target button, wherein after the steps (b)-(d) are performed, if there exists any button with an incorrect routing status, the routing reminder is displayed thereon, and if there exists any button with a correct routing status, no routing reminder is displayed thereon.
    Type: Application
    Filed: September 12, 2006
    Publication date: November 15, 2007
    Applicant: ULEAD SYSTEMS, INC.
    Inventors: Cheng-Feng Wang, Jia-sheng Su, Sheng-Wen Bai
  • Publication number: 20070192353
    Abstract: A playable volume generation method. A playlist comprises a plurality of playlist items, each targeting one of the playable items to be displayed according to the arrangement of the playlist items. A designated inter-item position on the playlist for inserting a new playlist item is received. A former playlist item and a later playlist item adjacent to the new playlist item are automatically retrieved. A second playable item targeted by the new playlist item is automatically generated to simulate a transition effect transitioning from the end of the playable item targeted by the former playlist item to the beginning of the playable item targeted by the later playlist item.
    Type: Application
    Filed: December 14, 2006
    Publication date: August 16, 2007
    Inventors: Cheng-Feng Wang, Chia-Sheng Su, Sheng-Wen Bai