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.

公开(公告)号：US10944969B2

公开(公告)日：2021-03-09

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: H04N7/12 ,  H04N19/119 ,  H04N19/176 ,  H04N19/70 ,  H04N19/13 ,  H04N19/593 ,  H04N19/103 ,  H04N19/463 ,  H04N19/91 ,  H04N19/186 ,  H04N19/182 ,  H04N19/124 ,  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：US20200294270A1

公开(公告)日：2020-09-17

申请号：US16699114

申请日：2019-11-29

Applicant: Industrial Technology Research Institute

Inventor： Sheng-Po Wang ,  Erh-Chung Ke ,  Yi-Ting Tsai ,  Chun-Lung Lin ,  Ching-Chieh Lin

IPC: G06T9/00 ,  G06T11/00

Abstract: A patch extension method, an encoder and a decoder are provided. The method includes: obtaining a point cloud including a plurality of points; obtaining a first patch according to the point cloud, wherein the first patch is a subset of the point cloud; for at least one sampling point in the first patch, obtaining at least one neighboring point in the point cloud less than a first threshold away from the sampling point; and adding the neighboring point to the first patch.

公开(公告)号：US20200013235A1

公开(公告)日：2020-01-09

申请号：US16502036

申请日：2019-07-03

Applicant: Industrial Technology Research Institute

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

IPC: G06T19/20 ,  G06T7/73 ,  G06K9/62

Abstract: A method and an apparatus for processing patches of a point cloud are provided. The apparatus includes an input/output (I/O) device, a storage device, and a processor. The I/O device is used to receive a bit stream of the point cloud. The storage device is configured to store an index table recording indexes corresponding to a plurality of orientations. The processor is coupled to the I/O device and the storage device and is configured to execute a program to demultiplex the bit stream of the point cloud into a patch image and indexes corresponding to a plurality of patches in the patch image, look up the index table obtain an orientation of each patch, transform the patch image according to the orientation to recover the plurality of patches of the point cloud, and reconstruct the point cloud by using the recovered patches.

公开(公告)号：US20180054623A1

公开(公告)日：2018-02-22

申请号：US15709490

申请日：2017-09-20

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：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：US09813708B2

公开(公告)日：2017-11-07

申请号：US14255261

申请日：2014-04-17

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chun-Lung Lin ,  Pei-Hsuan Tsai

IPC: H04N19/583 ,  H04N19/105 ,  H04N19/56 ,  H04N19/52 ,  H04N19/176 ,  H04N19/117 ,  H04N19/14 ,  H04N19/567

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/52 ,  H04N19/56 ,  H04N19/567

Abstract: According to one to one exemplary embodiment, the disclosure provides a method of coding prediction for screen video. The method classifies a plurality of coding blocks into a plurality of block types by using a classifier; and uses a computing device to filter at least one candidate block from the plurality of coding blocks, according to the plurality of block types of the plurality of coding blocks, and compute a first candidate motion vector set of a type-based motion merge mode and a second candidate motion vector set of a type-based advanced motion vector prediction mode, wherein each of the at least one candidate block has a block-type different from that of a current coding block.

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。