Patents by Inventor Chung-Te Li

Chung-Te Li 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: 8610758
    Abstract: In accordance with at least some embodiments of the present disclosure, a process for generating a depth map for converting a two-dimensional (2D) image to a three-dimensional (3D) image is described. The process may include generating a depth gradient map from the 2D image, wherein the depth gradient map is configured to associate one or more edge counts with one or more depth values, extracting an image component from the 2D image, wherein the image component is associated with a color component in a color space, determining a set of gains to adjust the depth gradient map based on the image component, and generating the depth map by performing depth fusion based on the depth gradient map and the set of gains.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: December 17, 2013
    Assignees: Himax Technologies Limited, National Taiwan University
    Inventors: Chao-Chung Cheng, Chung-Te Li, Liang-Gee Chen, Ling-Hsiu Huang
  • Publication number: 20130071008
    Abstract: In accordance with at least some embodiments of the present disclosure, a process for converting a two-dimensional (2D) image based on edge information is described. The process may include partitioning the 2D image to generate a plurality of blocks, segmenting the plurality of blocks into a group of regions based on edges determined in the plurality of blocks, assigning depth values to the plurality of blocks based on a depth gradient hypothesis associated with the group of regions, wherein pixels in each of the plurality of blocks are associated with a same depth value, and generating the depth map based on the depth values of the plurality of blocks.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 21, 2013
    Applicants: NATIONAL TAIWAN UNIVERSITY, HIMAX TECHNOLOGIES LIMITED
    Inventors: Liang-Gee Chen, Chung-Te Li, Chao-Chung Cheng, Ling-Hsiu Huang
  • Publication number: 20130058562
    Abstract: A system and method of correcting a depth map for 3D image is disclosed. A spatial spectral transform unit extracts pixels of object boundaries according to an input image, wherein the spatial spectral transform unit adopts Hilbert-Huang transform (HHT). A correction unit corrects an input depth map corresponding to the input image according to the pixels of object boundaries, thereby resulting in an output depth map.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 7, 2013
    Applicants: HIMAX TECHNOLOGIES LIMITED, NATIONAL TAIWAN UNIVERSITY
    Inventors: Liang-Gee CHEN, Chung-Te LI, Chao-Chung CHENG, Yen-Chieh LAI, Chien WU, Ling-Hsiu HUANG
  • Publication number: 20120293615
    Abstract: In accordance with at least some embodiments of the present disclosure, a process for enhancing a two-dimensional (2D) image is described. The process may include generating a depth map for the 2D image based on edges detected from the 2D image, wherein the depth map can be used to convert the 2D image to a 3D image. The process may further include enhancing the 2D image using the depth map.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 22, 2012
    Applicants: NATIONAL TAIWAN UNIVERSITY, HIMAX TECHNOLOGIES LIMITED
    Inventors: Liang-Gee Chen, Chung-Te Li, Chao-Chung Cheng, Yen-Chieh Lai, Ling-Hsiu Huang
  • Publication number: 20120293624
    Abstract: A method of revising depth of a three-dimensional (3D) image is disclosed. The method comprises the following steps: firstly, at least one initial depth map associated with one image of the 3D image pair based on stereo matching technique is received, wherein the one image comprises a plurality of pixels, and the initial depth map carries an initial depth value of each pixel. Then, the inconsistence among the pixels of the one image of the 3D image pair is detected to estimate a reliable map. Finally, the initial depth value is interpolated according to the reliable map and the proximate pixels, so as to generate a revised depth map by revising the initial depth value.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 22, 2012
    Applicants: HIMAX TECHNOLOGIES LIMITED, NATIONAL TAIWAN UNIVERSITY
    Inventors: LIANG-GEE CHEN, CHIEN WU, CHUNG-TE LI, YEN-CHIEH LAI, CHAO-CHUNG CHENG, LING-HSIU HUANG
  • Publication number: 20120293489
    Abstract: A nonlinear depth remapping method includes the following steps: firstly, an initial depth map associated with at least one image is received, with the image comprising a plurality of pixels and the initial depth map carrying an initial depth value of each pixel. Then, an exponential function is utilized to adjust the initial depth values, so as to generate an adjusted depth map.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicants: HIMAX TECHNOLOGIES LIMITED, NATIONAL TAIWAN UNIVERSITY
    Inventors: LIANG-GEE CHEN, CHIEN WU, CHUNG-TE LI, YEN-CHIEH LAI, CHAO-CHUNG CHENG, LING-HSIU HUANG
  • Publication number: 20110285701
    Abstract: In accordance with at least some embodiments of the present disclosure, a processor for performing stereo matching of a first image and a second image is described. The processor may include a first pipeline stage configured to generate data costs associated with a first tile selected from the first image, wherein the data costs is generated based on pixels in the first tile and corresponding pixels in the second image. The processor may include a second pipeline stage configured to generate disparity values associated with the first tile and an outbound message from the first tile to one of neighboring tiles in the first image, wherein the disparity values and the outbound message are generated based on the data costs and inbound messages from the neighboring tiles to the first tile.
    Type: Application
    Filed: May 30, 2011
    Publication date: November 24, 2011
    Applicants: NATIONAL TAIWAN UNIVERSITY, HIMAX TECHNOLOGIES LIMITED
    Inventors: Liang-Gee Chen, Chung-Te Li, Chao-Chung Cheng, Chia-Kai Liang, Yen-Chieh Lai, Ling-Hsiu Huang
  • Patent number: 8059911
    Abstract: A depth-based image enhancement system is disclosed. A depth estimation unit generates three-dimensional (3D) depth information from a two-dimensional (2D) image. Subsequently, an image enhancement unit enhances the 2D image according to the 3D depth information.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 15, 2011
    Assignees: Himax Technologies Limited, National Taiwan University
    Inventors: Liang-Gee Chen, Chao-Chung Cheng, Chung-Te Li, Ling-Hsiu Huang
  • Patent number: 8050507
    Abstract: A system of generating three-dimensional (3D) depth information is disclosed. A color and object independent local blurriness estimation unit analyzes blurriness of each pixel of a two-dimensional (2D) image. Subsequently, a depth assignment unit assigns depth information to the 2D image according to the analyzed blurriness.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 1, 2011
    Assignees: Himax Technologies Limited, National Taiwan University
    Inventors: Liang-Gee Chen, Chao-Chung Cheng, Chung-Te Li, Ling-Hsiu Huang
  • Publication number: 20110141237
    Abstract: In accordance with at least some embodiments of the present disclosure, a process for generating a depth map for converting a two-dimensional (2D) image to a three-dimensional (3D) image is described. The process may include generating a depth gradient map from the 2D image, wherein the depth gradient map is configured to associate one or more edge counts with one or more depth values, extracting an image component from the 2D image, wherein the image component is associated with a color component in a color space, determining a set of gains to adjust the depth gradient map based on the image component, and generating the depth map by performing depth fusion based on the depth gradient map and the set of gains.
    Type: Application
    Filed: September 3, 2010
    Publication date: June 16, 2011
    Applicants: HIMAX TECHNOLOGIES LIMITED, NATIONAL TAIWAN UNIVERSITY
    Inventors: CHAO-CHUNG CHENG, CHUNG-TE LI, LIANG-GEE CHEN, LING-HSIU HUANG
  • Publication number: 20100079448
    Abstract: A system and method of generating three-dimensional (3D) depth information is disclosed. A classification and segmentation unit segments a two-dimensional (2D) image into a number of segments, such that pixels having similar characteristics are classified into the same segment. A spatial-domain texel density analysis unit performs texel density analysis on the 2D image to obtain textual density. A depth assignment unit assigns depth information to the 2D image according to the analyzed textual density.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Liang-Gee Chen, Chao-Chung Cheng, Chung-Te Li, Ling-Hsiu Huang
  • Publication number: 20100080481
    Abstract: A system of generating three-dimensional (3D) depth information is disclosed. A color and object independent local blurriness estimation unit analyzes blurriness of each pixel of a two-dimensional (2D) image. Subsequently, a depth assignment unit assigns depth information to the 2D image according to the analyzed blurriness.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Liang-Gee Chen, Chao-Chung Cheng, Chung-Te Li, Ling-Hsiu Huang