Patents by Inventor Huai-Che Lee

Huai-Che Lee 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: 20230169935
    Abstract: This application discloses a method for adjusting image luminance performed at an electronic device. The method includes: determining that an original luminance of a target pixel in an image is lower than a luminance threshold of the image, the luminance threshold being determined according to luminance of pixels in the image; in accordance with the determination: obtaining a luminance distribution intensity of pixels adjacent to the target pixel in the image; determining a luminance difference between the luminance threshold and the luminance distribution intensity of the adjacent pixels; and adjusting the original luminance of the target pixel to a corresponding target luminance according to the luminance difference. By preserving the changing characteristic of relative luminance between the target pixel and the adjacent pixel, the luminance adjustment is more consistent with the luminance distribution of the image, thereby achieving a technical effect of improving the luminance adjustment on an image.
    Type: Application
    Filed: January 24, 2023
    Publication date: June 1, 2023
    Inventors: Juihsiang CHAO, Huai-Che Lee
  • Patent number: 11587530
    Abstract: This application discloses a method for adjusting image luminance performed at an electronic device. The method includes: determining a target pixel with original luminance lower than a luminance threshold in an original image, the luminance threshold being determined according to luminance of pixels in the original image; obtaining a luminance distribution intensity of pixels adjacent to the target pixel; determining a difference between the luminance threshold and the luminance distribution intensity of the adjacent pixels; and adjusting the target pixel to corresponding target luminance according to the difference and the original luminance of the target pixel. According to this application, a changing characteristic of relative luminance between the target pixel and the adjacent pixel is reserved. The luminance adjustment is more consistent with the luminance propagation of the original image, thereby achieving a technical effect of improving an adjustment effect of luminance adjustment on an image.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: February 21, 2023
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Juihsiang Chao, Huai-Che Lee
  • Patent number: 11295528
    Abstract: Embodiments of the disclosure provide an image rendering method, an image rendering apparatus, an image processing device, and a computer-readable storage medium. In one embodiment, the method, apparatus, device, and medium involve obtaining an initial image of a current scene, and determining a first area and a second area on the initial image; rendering image data of the first area based on a first rendering rule, to obtain a first sub-image; rendering image data of the second area based on a second rendering rule, to obtain a second sub-image; and generating a target display image based on the first sub-image and the second sub-image, the first rendering rule being different from the second rendering rule.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: April 5, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jui Hsiang Chao, Huai-Che Lee
  • Patent number: 11244427
    Abstract: An image resolution processing method includes: obtaining motion information of a display apparatus; determining a motion direction and rate information of the display apparatus according to the motion information; determining, according to the motion direction, a target object that is at least one of a horizontal resolution and a vertical resolution; determining a target value according to the rate information and a standard resolution of the display apparatus; and generating a to-be-displayed image, a value of the target object in an image resolution of the to-be-displayed image being equal to the target value.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: February 8, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LTD
    Inventors: Huai Che Lee, Kai Wei Chen, Jhih Rong Chen
  • Publication number: 20210295801
    Abstract: This application discloses a method for adjusting image luminance performed at an electronic device. The method includes: determining a target pixel with original luminance lower than a luminance threshold in an original image, the luminance threshold being determined according to luminance of pixels in the original image; obtaining a luminance distribution intensity of pixels adjacent to the target pixel; determining a difference between the luminance threshold and the luminance distribution intensity of the adjacent pixels; and adjusting the target pixel to corresponding target luminance according to the difference and the original luminance of the target pixel. According to this application, a changing characteristic of relative luminance between the target pixel and the adjacent pixel is reserved. The luminance adjustment is more consistent with the luminance propagation of the original image, thereby achieving a technical effect of improving an adjustment effect of luminance adjustment on an image.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Inventors: Juihsiang CHAO, Huai-Che Lee
  • Publication number: 20210027541
    Abstract: Embodiments of the disclosure provide an image rendering method, an image rendering apparatus, an image processing device, and a computer-readable storage medium. In one embodiment, the method, apparatus, device, and medium involve obtaining an initial image of a current scene, and determining a first area and a second area on the initial image; rendering image data of the first area based on a first rendering rule, to obtain a first sub-image; rendering image data of the second area based on a second rendering rule, to obtain a second sub-image; and generating a target display image based on the first sub-image and the second sub-image, the first rendering rule being different from the second rendering rule.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jui Hsiang CHAO, Huai-Che LEE
  • Publication number: 20200334790
    Abstract: An image resolution processing method includes: obtaining motion information of a display apparatus; determining a motion direction and rate information of the display apparatus according to the motion information; determining, according to the motion direction, a target object that is at least one of a horizontal resolution and a vertical resolution; determining a target value according to the rate information and a standard resolution of the display apparatus; and generating a to-be-displayed image, a value of the target object in an image resolution of the to-be-displayed image being equal to the target value.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Huai Che LEE, Kai Wei CHEN, Jhih Rong CHEN
  • Patent number: 9979952
    Abstract: A method for creating a parallax video from a still image includes following steps. Image segmentation is performed for separating at least a foreground object within the still image from an image background of the still image. A blank region of the image background is filled, and the blank region corresponds to where the separated foreground object locates within the still image. A virtual three-dimensional (3D) scene consisting of the foreground object and the image background is created. The virtual 3D scene is analyzed for determining a camera path; and, creating the parallax video by observing the virtual 3D scene with a virtual camera moving along the camera path.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: May 22, 2018
    Assignee: HTC Corporation
    Inventors: Huai-Che Lee, Li-Cheng Chen, Yung-Chao Tseng, Hsin-Ti Chueh
  • Patent number: 9760793
    Abstract: An apparatus and computer-implemented method for generating a three-dimensional scene and non-transitory tangible computer readable medium thereof are provided. The apparatus comprises a storage unit and a processing unit. The storage unit is stored with an image and a plurality of depth data of the image. The processing unit is configured to generate a depth histogram according to the depth data, generate a region of interest of the image according to the depth histogram, decide a moving path of a virtual camera according to the region of interest, and generate the three-dimensional scene according to the image and the moving path.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: September 12, 2017
    Assignee: HTC CORPORATION
    Inventors: Li-Cheng Chen, Huai-Che Lee, Jhih-Rong Chen, Yung-Chao Tseng, Hsin-Ti Chueh
  • Patent number: 9508193
    Abstract: Apparatuses, methods, and non-transitory tangible computer readable media thereof for creating a 3D scene are provided. The apparatus generates a height map according to a plurality of depth data of an image. The apparatus finds a first region of the height map, wherein the depth data within the first region change more greatly than the depth data outside the first region. The apparatus creates a plurality of grids on a plane according to the first region and generate a 3D mesh by morphing the height map with the grids of the plane. The plane and the height map are of the same size, a second region within the plane corresponds to the first region of the height map, and the grids inside the second region has a finer resolution than the grids outside the second region. The apparatus generates the 3D scene by mapping the image onto the 3D mesh.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: November 29, 2016
    Assignee: HTC CORPORATION
    Inventors: Li-Cheng Chen, Huai-Che Lee, Jhih-Rong Chen, Yung-Chao Tseng, Hsin-Ti Chueh
  • Patent number: 9424808
    Abstract: The invention discloses an image cropping manipulation method for use in a portable electronic device. The portable electronic device comprises a touch screen and an image processing unit. The method comprises: displaying a sub-image on the touch screen, the sub-image is cropped from a digital image; receiving a user input from the touch screen; in response to the user input, map the user input to an operation on the digital image; and performing the operation to update the sub-image.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: August 23, 2016
    Assignee: HTC Corporation
    Inventors: Huai-Che Lee, Li-Cheng Chen, Jenn-Wein Wu, Hsin-Ti Chueh
  • Publication number: 20150193974
    Abstract: Apparatuses, methods, and non-transitory tangible computer readable media thereof for creating a 3D scene are provided. The apparatus generates a height map according to a plurality of depth data of an image. The apparatus finds a first region of the height map, wherein the depth data within the first region change more greatly than the depth data outside the first region. The apparatus creates a plurality of grids on a plane according to the first region and generate a 3D mesh by morphing the height map with the grids of the plane. The plane and the height map are of the same size, a second region within the plane corresponds to the first region of the height map, and the grids inside the second region has a finer resolution than the grids outside the second region. The apparatus generates the 3D scene by mapping the image onto the 3D mesh.
    Type: Application
    Filed: January 5, 2015
    Publication date: July 9, 2015
    Inventors: Li-Cheng Chen, Huai-Che Lee, Jhih-Rong Chen, Yung-Chao Tseng, Hsin-Ti Chueh
  • Publication number: 20150172627
    Abstract: An automatic calibration method suitable for an electronic apparatus comprising a proximity sensor is disclosed. The automatic calibration method includes steps of: resetting data comprising a minimal index and a maximal index when a specific function is activated; updating the minimal index and the maximal index according to readings from the proximity sensor; resetting the minimal index when the proximity sensor detects a far event according to a threshold value of the proximity sensor; resetting the maximal index when the proximity sensor detects a near event according to the threshold value; and, re-calculating the threshold value according to the minimal index or the maximal index every time the minimal index or the maximal index is updated.
    Type: Application
    Filed: July 2, 2014
    Publication date: June 18, 2015
    Inventors: Huai-Che LEE, Li-Cheng CHEN, Yung-Chao TSENG, Hsin-Ti CHUEH
  • Patent number: 9049355
    Abstract: An embodiment of the invention discloses a face-slimming method applied to a series of images captured by an electronic device. The process begins to receive a current image from the series of captured images and detects at least one face landmark corresponding to a face region of the current image. The face landmark of the current image is compared with a reference landmark and a distortion mask is adjusted accordingly. And then, a size of the face region within the current image is then adjusted according to the distortion mask, where the distortion mask corresponds to positions of the face landmark.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: June 2, 2015
    Assignee: HTC CORPORATION
    Inventors: Ching-Fu Lin, Pol-Lin Tai, Huai-Che Lee, Jing-Lung Wu, Hsin-Ti Chueh
  • Publication number: 20150116317
    Abstract: An apparatus and computer-implemented method for generating a three-dimensional scene and non-transitory tangible computer readable medium thereof are provided. The apparatus comprises a storage unit and a processing unit. The storage unit is stored with an image and a plurality of depth data of the image. The processing unit is configured to generate a depth histogram according to the depth data, generate a region of interest of the image according to the depth histogram, decide a moving path of a virtual camera according to the region of interest, and generate the three-dimensional scene according to the image and the moving path.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventors: Li-Cheng CHEN, Huai-Che LEE, Jhih-Rong CHEN, Yung-Chao TSENG, Hsin-Ti CHUEH
  • Publication number: 20150054854
    Abstract: The invention discloses an image cropping manipulation method for use in a portable electronic device. The portable electronic device comprises a touch screen and an image processing unit. The method comprises: displaying a sub-image on the touch screen, the sub-image is cropped from a digital image; receiving a user input from the touch screen; in response to the user input, map the user input to an operation on the digital image; and performing the operation to update the sub-image.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: HTC Corporation
    Inventors: Huai-Che Lee, Li-Cheng Chen, Jenn-Wein Wu, Hsin-Ti Chueh
  • Publication number: 20140085514
    Abstract: An embodiment of the invention discloses a face-slimming method applied to a series of images captured by an electronic device. The process begins to receive a current image from the series of captured images and detects at least one face landmark corresponding to a face region of the current image. The face landmark of the current image is compared with a reference landmark and a distortion mask is adjusted accordingly. And then, a size of the face region within the current image is then adjusted according to the distortion mask, where the distortion mask corresponds to positions of the face landmark.
    Type: Application
    Filed: August 23, 2013
    Publication date: March 27, 2014
    Applicant: HTC Corporation
    Inventors: Ching-Fu LIN, Pol-Lin TAI, Huai-Che LEE, Jing-Lung WU, Hsin-Ti CHUEH
  • Patent number: 8466920
    Abstract: A two dimensional (2D) vector graphics triangulation system and a method thereof are provided. The system includes a memory module and a triangle mesh processing module. The memory module temporarily stores a triangle mesh triangulated from a 2D vector graphics into a binary tree data structure. The triangle mesh processing module adjusts the triangle mesh, or re-performs a triangulation processing to a local region of the loop when a state of a loop of the 2D vector graphics is changed. The triangle mesh processing module includes a level of detail unit, which proportionally adjusts an error threshold according to a zoom condition of the loop, updates an error value of each boundary line when the loop is deformed, and splits a boundary line or merges two neighboring boundary lines according to the error values of the boundary lines and the error threshold.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: June 18, 2013
    Assignee: Institute for Information Industry
    Inventors: Huai-Che Lee, Jung-Hong Chuang, Tan-Chi Ho, Tsung-Sheng Fu, Yun Chien, Chia-Ming Liu
  • Publication number: 20110122139
    Abstract: A two dimensional (2D) vector graphics triangulation system and a method thereof are provided. The system includes a memory module and a triangle mesh processing module. The memory module temporarily stores a triangle mesh triangulated from a 2D vector graphics into a binary tree data structure. The triangle mesh processing module adjusts the triangle mesh, or re-performs a triangulation processing to a local region of the loop when a state of a loop of the 2D vector graphics is changed. The triangle mesh processing module includes a level of detail unit, which proportionally adjusts an error threshold according to a zoom condition of the loop, updates an error value of each boundary line when the loop is deformed, and splits a boundary line or merges two neighbouring boundary lines according to the error values of the boundary lines and the error threshold.
    Type: Application
    Filed: December 4, 2009
    Publication date: May 26, 2011
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Huai-Che Lee, Jung-Hong Chuang, Tan-Chi Ho, Tsung-Sheng Fu, Yun Chien, Chia-Ming Liu
  • Publication number: 20100149181
    Abstract: The invention provides a vector graphics system. In one embodiment, the vector graphics system comprises a path rendering manager module and a rendering module. The path rendering manager module receives path data, calculates a changing rate of the path data, and selects a filling method from a tessellation filling method and a Stencil filling method according to the changing rate. The rendering module fills the path data according to the tessellation filling method when the filling method is the tessellation filling method, and fills the path data according to the Stencil filling method when the filling method is the Stencil filling method.
    Type: Application
    Filed: December 29, 2008
    Publication date: June 17, 2010
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Huai-Che Lee, Chia-Wei Liao, Zong-Hong Lyu