Patents by Inventor Jih-Sheng Tu

Jih-Sheng Tu 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: 20210203842
    Abstract: A panoramic video processing method, a panoramic video processing device and a panoramic video system are provided. The panoramic video processing method includes the following steps. A plurality of shooting ranges of a plurality of cameras and a field of view (FOV) are received. An amount of stitches of a plurality of original images is calculated according to the shooting ranges and the field of view. An amount of a plurality of adjacent parts of the original images is corresponding to the amount of stitches. The adjacent parts of the original images are stitched to obtain a plurality of partial panoramic images.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 1, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jih-Sheng TU, Kai-Shun LIN, Po-Kai LIU, Chung-Yu LIAO
  • Publication number: 20210160496
    Abstract: An encoding, a decoding method, a system for encoding and decoding, an encoder, and a decoder are provided. The encoding method includes the following. In a palette mode, if colors of pixels of a coding unit block are all represented by one or more major colors of the coding unit block, a flag is set as a first state value, and if the color of at least one pixel of the coding unit block is not represented by the one or more major colors of the coding unit block, the flag is set as a second state value. The encoding method further includes establishing a palette table corresponding to the coding unit block according to a state value of the flag and the one or more major colors.
    Type: Application
    Filed: February 4, 2021
    Publication date: May 27, 2021
    Applicant: Industrial Technology Research Institute
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Ching-Chieh Lin, Jih-Sheng Tu, Chao-Hsiung Hung
  • Patent number: 10944969
    Abstract: An encoding, a decoding method, a system for encoding and decoding, an encoder, and a decoder are provided. The encoding method includes the following. In a palette mode, if colors of pixels of a coding unit block are all represented by one or more major colors of the coding unit block, a flag is set as a first state value, and if the color of at least one pixel of the coding unit block is not represented by the one or more major colors of the coding unit block, the flag is set as a second state value. The encoding method further includes establishing a palette table corresponding to the coding unit block according to a state value of the flag and the one or more major colors.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 9, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Ching-Chieh Lin, Jih-Sheng Tu, Chao-Hsiung Hung
  • Patent number: 10390020
    Abstract: A video encoding method includes receiving a source video frame, dividing the source video frame into a coding tree unit, determining a coding unit from the coding tree unit, enabling or disabling a coding mode of the coding unit, determining, if the coding mode is enabled, whether to evaluate a size of a transform unit for the enabled coding mode, and determining a transform unit of the coding unit for the enabled coding mode, wherein the size of the coding unit is defined by a number (N) of samples.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 20, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Jih-Sheng Tu, Ching-Chieh Lin
  • Patent number: 10225556
    Abstract: A method of encoding or decoding coding units of a video content in a palette coding mode using an adaptive palette predictor is provided. The method includes adaptively determining a maximum size of the adaptive palette predictor based on at least one of a complexity of the video content and coding quality of the video content; and encoding or decoding the coding units of the video content in the palette coding mode using the adaptive palette predictor while limiting the adaptive palette predictor that is derived from all palette(s) of previously encoded or decoded coding unit(s) of the video content within the maximum size determined in the adaptively determining step. An apparatus of encoding or decoding coding units of a video content in a palette coding mode using an adaptive palette predictor is also provided.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: March 5, 2019
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Chieh Lin, Yao-Jen Chang, Chun-Lung Lin, Jih-Sheng Tu
  • Patent number: 10187639
    Abstract: An encoding, a decoding method, a system for encoding and decoding, an encoder, and a decoder are provided. The encoding method includes the following. In a palette mode, if colors of pixels of a coding unit block are all represented by one or more major colors of the coding unit block, a flag is set as a first state value, and if the color of at least one pixel of the coding unit block is not represented by the one or more major colors of the coding unit block, the flag is set as a second state value. The encoding method further includes establishing a palette table corresponding to the coding unit block according to a state value of the flag and the one or more major colors.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: January 22, 2019
    Assignee: Industrial Technology Research Institute
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Ching-Chieh Lin, Jih-Sheng Tu, Chao-Hsiung Hung
  • Publication number: 20180131949
    Abstract: An encoding method and an encoder are provided. The encoding method includes receiving a first coding unit of a frame, and selecting a first index pixel and a second index pixel from pixels of the frame and setting index values corresponding to the two index pixels, where a color of the first index pixel is different to a color of the second index pixel. The encoding method includes indexing each pixel in the first coding unit to generate an index map. The encoding method includes generating a coding value corresponding to the first coding unit according to the index map, and transmitting the coding value to a decoder, wherein only an index value corresponding to a 1st scanned pixel in the pixels of the first coding unit in the index map is recorded in the coding value.
    Type: Application
    Filed: January 10, 2018
    Publication date: May 10, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Chao-Hsiung Hung, Ching-Chieh Lin, Jih-Sheng Tu
  • Publication number: 20180084251
    Abstract: An encoding, a decoding method, a system for encoding and decoding, an encoder, and a decoder are provided. The encoding method includes the following. In a palette mode, if colors of pixels of a coding unit block are all represented by one or more major colors of the coding unit block, a flag is set as a first state value, and if the color of at least one pixel of the coding unit block is not represented by the one or more major colors of the coding unit block, the flag is set as a second state value. The encoding method further includes establishing a palette table corresponding to the coding unit block according to a state value of the flag and the one or more major colors.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 22, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Ching-Chieh Lin, Jih-Sheng Tu, Chao-Hsiung Hung
  • Publication number: 20180054623
    Abstract: The disclosure is directed to a method of color palette coding and an electronic device using the same method. The proposed method would include not limited to encoding, by using a processor, a bit stream to represent a color of a coding unit and storing the bit stream in a storage medium or transmitting the bit stream. The bit stream would include not limited to a binary bit representing a run flag, a N binary bit sequence representing up to 2N major colors in a coding unit with each of the possible values of the N binary bit sequence representing an unique major color index of N major color indices, and a M binary bit sequence representing up to 2M extended colors with each of the possible values of the M binary bit sequence representing an unique extended color index of M extended color indices.
    Type: Application
    Filed: September 20, 2017
    Publication date: February 22, 2018
    Applicant: Industrial Technology Research Institute
    Inventors: Ching-Chieh Lin, Chun-Lung Lin, Yao-Jen Chang, Jih-Sheng Tu
  • Patent number: 9892338
    Abstract: In an embodiment, an encoding method includes generating a histogram corresponding to all pixels in a coding unit. The encoding method further includes seeking a first color value according to the histogram, wherein a first number of pixels of the first color value in the histogram is greater than or equals to a first threshold. The encoding method further includes seeking a second color value in a first range of the first color value according to the histogram. The encoding method further includes removing one or more pixels of the first color value from the histogram when a second number of pixels of the second color value is greater than or equals to a second threshold. The encoding method further includes adding the first color value into an initial color table when the second number of pixels is less than the second threshold. An encoder is also provided in the disclosure.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: February 13, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Chao-Hsiung Hung, Chun-Lung Lin, Yao-Jen Chang, Ching-Chieh Lin, Jih-Sheng Tu
  • Patent number: 9807402
    Abstract: The disclosure is directed to a method of color palette coding and an electronic device using the same method. The proposed method would include not limited to encoding, by using a processor, a bit stream to represent a color of a coding unit and storing the bit stream in a storage medium or transmitting the bit stream. The bit stream would include not limited to a binary bit representing a run flag, a N binary bit sequence representing up to 2N major colors in a coding unit with each of the possible values of the N binary bit sequence representing an unique major color index of N major color indices, and a M binary bit sequence representing up to 2M extended colors with each of the possible values of the M binary bit sequence representing an unique extended color index of M extended color indices.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: October 31, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Chieh Lin, Chun-Lung Lin, Yao-Jen Chang, Jih-Sheng Tu
  • Publication number: 20160360207
    Abstract: A method of encoding or decoding coding units of a video content in a palette coding mode using an adaptive palette predictor is provided. The method includes adaptively determining a maximum size of the adaptive palette predictor based on at least one of a complexity of the video content and coding quality of the video content; and encoding or decoding the coding units of the video content in the palette coding mode using the adaptive palette predictor while limiting the adaptive palette predictor that is derived from all palette(s) of previously encoded or decoded coding unit(s) of the video content within the maximum size determined in the adaptively determining step. An apparatus of encoding or decoding coding units of a video content in a palette coding mode using an adaptive palette predictor is also provided.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 8, 2016
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ching-Chieh LIN, Yao-Jen CHANG, Chun-Lung LIN, Jih-Sheng TU
  • Publication number: 20160360198
    Abstract: A video encoding method includes receiving a source video frame, dividing the source video frame into a coding tree unit, determining a coding unit from the coding tree unit, enabling or disabling a coding mode of the coding unit, determining, if the coding mode is enabled, whether to evaluate a size of a transform unit for the enabled coding mode, and determining a transform unit of the coding unit for the enabled coding mode, wherein the size of the coding unit is defined by a number (N) of samples.
    Type: Application
    Filed: June 29, 2016
    Publication date: December 8, 2016
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yao-Jen CHANG, Chun-Lung LIN, Jih-Sheng TU, Ching-Chieh LIN
  • Publication number: 20160360205
    Abstract: A video encoding method includes receiving a source video frame, dividing the source video frame into a coding tree unit, determining a coding unit from the coding tree unit, determining a correlation between components of the coding unit, enabling or disabling a coding mode of the coding unit, determining whether to evaluate a size of a transform unit for an enabled coding mode, and determining a transform unit of the coding unit for the enabled coding mode, wherein the size of the coding unit is defined by a number (N) of samples.
    Type: Application
    Filed: December 24, 2015
    Publication date: December 8, 2016
    Applicant: Industrial Technology Research Institute
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Jih-Sheng Tu, Ching-Chieh Lin
  • Patent number: 9462251
    Abstract: A depth map aligning method and a system are provided. The depth map aligning method includes the following steps. A view warping is performed to a left-view image and a right-view image of a real-view image according to a corresponding depth map to obtain a right-virtual view image, a left hole information, and a right hole information thereof. A residual difference of pixel, which is not a hole, is obtained by pixel to pixel. If the residual difference of the pixel is larger than a first threshold value, a reverse warping is performed to obtain a coordinate of the pixel. The depth value of the pixel is aligned according to the depth value of one or more pixels in a vicinity of the obtained coordinate.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: October 4, 2016
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jih-Sheng Tu, Jung-Yang Kao
  • Publication number: 20160217341
    Abstract: In an embodiment, an encoding method includes generating a histogram corresponding to all pixels in a coding unit. The encoding method further includes seeking a first color value according to the histogram, wherein a first number of pixels of the first color value in the histogram is greater than or equals to a first threshold. The encoding method further includes seeking a second color value in a first range of the first color value according to the histogram. The encoding method further includes removing one or more pixels of the first color value from the histogram when a second number of pixels of the second color value is greater than or equals to a second threshold. The encoding method further includes adding the first color value into an initial color table when the second number of pixels is less than the second threshold. An encoder is also provided in the disclosure.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 28, 2016
    Inventors: Chao-Hsiung Hung, Chun-Lung Lin, Yao-Jen Chang, Ching-Chieh Lin, Jih-Sheng Tu
  • Publication number: 20160100161
    Abstract: A method for decoding, a method for encoding, a codec system, a decoder and an encoder are provided. The method includes receiving a first flag corresponding to a coding unit block, and receiving and reading a second flag corresponding to the coding unit block and index values of each pixel of the coding unit block when a state value of the first flag is conformed with a predetermined state value. The method also includes selecting N colors corresponding to N index pixels from a neighboring area of the coding unit block according to the second flag, wherein the second flag indicates an amount of the N colors corresponding to the N index pixels and colors of each of the N colors are different. The method further includes reconstructing pixels of the coding unit block according to the N colors corresponding to the N index pixels.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 7, 2016
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Ching-Chieh Lin, Jih-Sheng Tu
  • Publication number: 20160100178
    Abstract: The disclosure is directed to a method of color palette coding and an electronic device using the same method. The proposed method would include not limited to encoding, by using a processor, a bit stream to represent a color of a coding unit and storing the bit stream in a storage medium or transmitting the bit stream. The bit stream would include not limited to a binary bit representing a run flag, a N binary bit sequence representing up to 2N major colors in a coding unit with each of the possible values of the N binary bit sequence representing an unique major color index of N major color indices, and a M binary bit sequence representing up to 2M extended colors with each of the possible values of the M binary bit sequence representing an unique extended color index of M extended color indices.
    Type: Application
    Filed: October 6, 2015
    Publication date: April 7, 2016
    Inventors: Ching-Chieh Lin, Chun-Lung Lin, Yao-Jen Chang, Jih-Sheng Tu
  • Publication number: 20150365670
    Abstract: An encoding, a decoding method, a system for encoding and decoding, an encoder, and a decoder are provided. The encoding method includes the following. In a palette mode, if colors of pixels of a coding unit block are all represented by one or more major colors of the coding unit block, a flag is set as a first state value, and if the color of at least one pixel of the coding unit block is not represented by the one or more major colors of the coding unit block, the flag is set as a second state value. The encoding method further includes establishing a palette table corresponding to the coding unit block according to a state value of the flag and the one or more major colors.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 17, 2015
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Ching-Chieh Lin, Jih-Sheng Tu, Chao-Hsiung Hung
  • Publication number: 20150365685
    Abstract: An encoding method and a decoding method, and a codec system, an encoder and a decoder using the methods are provided. The encoding method includes receiving a first coding unit of a frame, and selecting a first index pixel and a second index pixel from pixels of the frame and setting index values corresponding to the two index pixels, where a color of the first index pixel is different to a color of the second index pixel. The encoding method includes indexing each pixel in the first coding unit to generate an index map. The encoding method includes generating a coding value corresponding to the first coding unit according to the index map, and transmitting the coding value to a decoder, wherein only an index value corresponding to a 1st scanned pixel in the pixels of the first coding unit in the index map is recorded in the coding value.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 17, 2015
    Inventors: Yao-Jen Chang, Chun-Lung Lin, Chao-Hsiung Hung, Ching-Chieh Lin, Jih-Sheng Tu