公开(公告)号：US20240169596A1

公开(公告)日：2024-05-23

申请号：US17988783

申请日：2022-11-17

Applicant: Industrial Technology Research Institute

Inventor： Sheng-Po Wang ,  Jie-Ru Lin ,  Ching-Chieh Lin ,  Chun-Lung Lin

IPC: G06T9/00 ,  G06T9/40 ,  H04N19/137 ,  H04N19/172

CPC classification number: G06T9/001 ,  G06T9/40 ,  H04N19/137 ,  H04N19/172

Abstract: An encoding method, a decoding method, and a device for point cloud compression are provided. The encoding method includes the following. Point cloud data corresponding to a first frame is obtained, and is distinguished into a global point cloud set and at least one object point cloud set according to a reference frame. The object point cloud set corresponds to at least one reference object point cloud set. A global dynamic model corresponding to the global point cloud set is calculated and an object dynamic model corresponding to the object point cloud set is calculated. A bitstream is generated. The bitstream includes the global point cloud set, the global dynamic model corresponding to the global point cloud set, a serial number of each object point in the reference object point cloud set, and the object dynamic model corresponding to the object point cloud set.

公开(公告)号：US20230021460A1

公开(公告)日：2023-01-26

申请号：US17860051

申请日：2022-07-07

Applicant: Industrial Technology Research Institute

Inventor： Sheng-Po Wang ,  Ching-Chieh Lin ,  Chun-Lung Lin

IPC: H04N19/61 ,  H04N19/119 ,  H04N19/625 ,  H04N19/12 ,  H04N19/136 ,  H04N19/176 ,  H04N19/105 ,  H04N19/129 ,  H04N19/46 ,  H04N19/147 ,  H04N19/18

Abstract: A feature data encoding method, an encoder, a feature data decoding method, and a decoder are provided. The feature data encoding method includes following steps. A transform unit is divided into a plurality of sub-blocks and N sub-transform units. A reference origin and a LSC are determined in an i-th sub-transform unit of the sub-transform units, and an original coordinate of the last significant coefficient of the i-th sub-transform unit is modified to a specific coordinate. The i-th sub-transform unit is scanned from a specific sub-block of the i-th sub-transform unit, and significant feature coefficients in the i-th sub-transform unit are individually encoded as coded data.

公开(公告)号：US20180084251A1

公开(公告)日：2018-03-22

申请号：US15822215

申请日：2017-11-27

Applicant: Industrial Technology Research Institute

Inventor： Yao-Jen Chang ,  Chun-Lung Lin ,  Ching-Chieh Lin ,  Jih-Sheng Tu ,  Chao-Hsiung Hung

IPC: H04N19/119 ,  H04N19/186 ,  H04N19/13 ,  H04N19/91 ,  H04N19/70 ,  H04N19/593 ,  H04N19/463 ,  H04N19/103 ,  H04N19/182 ,  H04N19/176 ,  H04N19/124 ,  H04N19/94

CPC classification number: H04N19/119 ,  H04N19/103 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91 ,  H04N19/94

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.

公开(公告)号：US20160100161A1

公开(公告)日：2016-04-07

申请号：US14872155

申请日：2015-10-01

Applicant: Industrial Technology Research Institute

Inventor： Yao-Jen Chang ,  Chun-Lung Lin ,  Ching-Chieh Lin ,  Jih-Sheng Tu

IPC: H04N19/103 ,  H04N19/176 ,  H04N19/44 ,  H04N19/186

CPC classification number: H04N19/103 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593

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.

Abstract translation: 提供一种解码方法，编码方法，编解码系统，解码器和编码器。 该方法包括接收与编码单元块相对应的第一标志，以及当第一标志的状态值符合编码单元块的状态值时，接收和读取与编码单元块相对应的第二标志和编码单元块的每个像素的索引值 预定状态值。 该方法还包括根据第二标志从编码单元块的相邻区域中选择与N个索引像素相对应的N个颜色，其中第二标志指示对应于N个索引像素的N个颜色的量和每个 N种颜色不同。 该方法还包括根据对应于N个索引像素的N个颜色重建编码单元块的像素。

公开(公告)号：US11431971B2

公开(公告)日：2022-08-30

申请号：US16910068

申请日：2020-06-24

Applicant: Industrial Technology Research Institute

Inventor： Chang-Hao Yau ,  Bing-Jung Fuh ,  Ching-Chieh Lin

IPC: H04N19/117 ,  H04N19/134 ,  H04N19/176 ,  H04N19/59

Abstract: A method and an image processing apparatus for video coding are provided. The method is adapted to the image processing apparatus and includes following steps. A current coding unit is received, and filter selection is performed according to a size of the current coding unit. At least one selected filter is used to perform a filtering operation on a plurality of reference boundaries of the current coding unit to generate a plurality of filtering reference values. An interpolation operation is performed on the current coding unit according to the filtering reference values to generate a plurality of interpolated prediction values.

公开(公告)号：US20210160496A1

公开(公告)日：2021-05-27

申请号：US17168142

申请日：2021-02-04

Applicant: Industrial Technology Research Institute

Inventor： Yao-Jen Chang ,  Chun-Lung Lin ,  Ching-Chieh Lin ,  Jih-Sheng Tu ,  Chao-Hsiung Hung

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/70 ,  H04N19/13 ,  H04N19/593 ,  H04N19/103 ,  H04N19/463 ,  H04N19/91 ,  H04N19/186 ,  H04N19/182

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.

公开(公告)号：US20190182503A1

公开(公告)日：2019-06-13

申请号：US16218484

申请日：2018-12-13

Applicant: Industrial Technology Research Institute

Inventor： Yi-Ting Tsai ,  Ching-Chieh Lin ,  Chun-Lung Lin

IPC: H04N19/513

Abstract: A method and an image processing apparatus for video coding are proposed. The method is applicable to an image processing apparatus and includes the following steps. A current coding unit is received, and the number of control points of a current coding unit is set, where the number of control points is greater than or equal to 3. At least one affine model is generated based on the number of control points, and an affine motion vector corresponding to each of the at least one affine model is computed. A motion vector predictor of the current coding unit is computed based on the at least one motion vector so as to accordingly perform inter-prediction coding on the current coding unit.

公开(公告)号：US09807402B2

公开(公告)日：2017-10-31

申请号：US14875697

申请日：2015-10-06

Applicant: Industrial Technology Research Institute

Inventor： Ching-Chieh Lin ,  Chun-Lung Lin ,  Yao-Jen Chang ,  Jih-Sheng Tu

IPC: H04N19/186 ,  H04N1/64 ,  H04N19/70 ,  H04N19/90

CPC classification number: H04N19/186 ,  H04N1/644 ,  H04N19/70 ,  H04N19/90

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.

公开(公告)号：US09787966B2

公开(公告)日：2017-10-10

申请号：US13725198

申请日：2012-12-21

Applicant: Industrial Technology Research Institute

Inventor： Fang-Chu Chen ,  Ching-Chieh Lin ,  Wen-Hao Chung

IPC: H04N1/00 ,  H04N13/00 ,  H04N19/597

CPC classification number: H04N13/161 ,  H04N13/111 ,  H04N19/597

Abstract: A method and device for coding interlaced video data. The method includes coding interlaced video data captured from a plurality of different positions, the interlaced video data including data for a top field and a bottom field for at least one interlaced video scan, the top field including every other line starting with a top line of a frame and the bottom field including interposed lines in the frame.

公开(公告)号：US20230412804A1

公开(公告)日：2023-12-21

申请号：US18460622

申请日：2023-09-04

Applicant: Industrial Technology Research Institute

Inventor： Yao-Jen Chang ,  Chun-Lung Lin ,  Ching-Chieh Lin ,  Jih-Sheng Tu ,  Chao-Hsiung Hung

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/70 ,  H04N19/13 ,  H04N19/593 ,  H04N19/103 ,  H04N19/463 ,  H04N19/91 ,  H04N19/186 ,  H04N19/182

CPC classification number: H04N19/119 ,  H04N19/176 ,  H04N19/70 ,  H04N19/13 ,  H04N19/593 ,  H04N19/124 ,  H04N19/463 ,  H04N19/91 ,  H04N19/186 ,  H04N19/182 ,  H04N19/103

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.