公开(公告)号：US20150365670A1

公开(公告)日：2015-12-17

申请号：US14733976

申请日：2015-06-09

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

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.

Abstract translation: 提供编码，解码方法，编码和解码系统，编码器和解码器。 该编码方法包括以下。 在调色板模式中，如果编码单元块的像素的颜色全部由编码单位块的一个或多个主色表示，则将标志设置为第一状态值，并且如果将至少一个像素的颜色 编码单位块不由编码单位块的一个或多个主要颜色表示，则标志被设置为第二状态值。 编码方法还包括根据标志的状态值和一种或多种主要颜色来建立与编码单元块相对应的调色板表。

公开(公告)号：US12200210B2

公开(公告)日：2025-01-14

申请号：US18460624

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: H04N19/51 ,  H04N19/103 ,  H04N19/119 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91 ,  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：US20240251076A1

公开(公告)日：2024-07-25

申请号：US18496910

申请日：2023-10-29

Applicant: Industrial Technology Research Institute

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

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176

CPC classification number: H04N19/11 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176

Abstract: An electronic device and a method of intra prediction. The method includes: a first reference area adjacent to a first target image block is obtained from a reference image block, and the first reference area includes multiple first reference samples corresponding to a first direction; an intra mode of the first target image block is determined according to the first reference samples; and the intra mode is outputted.

公开(公告)号：US20230412805A1

公开(公告)日：2023-12-21

申请号：US18460624

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 ,  H04N19/103 ,  H04N19/463 ,  H04N19/91 ,  H04N19/186 ,  H04N19/182 ,  H04N19/124

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：US11785215B2

公开(公告)日：2023-10-10

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: H04N1/64 ,  H04N19/51 ,  H04N19/119 ,  H04N19/176 ,  H04N19/70 ,  H04N19/13 ,  H04N19/593 ,  H04N19/103 ,  H04N19/463 ,  H04N19/91 ,  H04N19/186 ,  H04N19/182 ,  H04N19/124 ,  H04N19/94

CPC classification number: H04N19/119 ,  H04N19/103 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/91 ,  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：US20230113529A1

公开(公告)日：2023-04-13

申请号：US17956841

申请日：2022-09-30

Applicant: Industrial Technology Research Institute

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

IPC: G06T9/00 ,  H04N19/147 ,  H04N19/82 ,  H04N19/46

Abstract: An encoding method and an electronic device for point cloud compression are provided. A two-dimensional image and an occupancy map of a point cloud are obtained. An occupancy status of point cloud data of each pixel sample in the two-dimensional image is determined according to the occupancy map. A weight parameter of each pixel sample in an encoding block of the two-dimensional image is determined according to the occupancy statuses of point cloud data of multiple pixel samples. Multiple rate-distortion costs respectively corresponding to multiple encoding operation options are calculated according to the weight parameter of each pixel sample in the encoding block. One of the encoding operation options is determined to be used to perform an encoding operation on the encoding block according to a minimum rate-distortion cost among the rate-distortion costs.

公开(公告)号：US10735727B2

公开(公告)日：2020-08-04

申请号：US16455765

申请日：2019-06-28

Applicant: Industrial Technology Research Institute

Inventor： Ching-Chieh Lin ,  Chun-Lung Lin

IPC: H04N19/117 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/593

Abstract: A method of adaptive filtering for multiple reference line of intra prediction in video coding, a video encoding apparatus and video decoding apparatus therewith are provided in the disclosure. In the method of intra prediction in video coding, a method of adaptive filtering is used to dynamically determine operation of filtering is applied to input samples in the intra prediction or not, which can reduce the complexity of the intra prediction in video coding if multiple reference lines are used for the operation of the intra prediction, and also increase the efficiency of compressing performance of ultra-high resolution video.

公开(公告)号：US10225556B2

公开(公告)日：2019-03-05

申请号：US15177203

申请日：2016-06-08

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

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

IPC: H04N19/15 ,  H04N19/136 ,  H04N19/96 ,  H04N19/61 ,  H04N19/186 ,  H04N19/124 ,  H04N19/154 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/134 ,  H04N19/102 ,  H04N19/593

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.

公开(公告)号：US10187639B2

公开(公告)日：2019-01-22

申请号：US14733976

申请日：2015-06-09

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：US20180131949A1

公开(公告)日：2018-05-10

申请号：US15866493

申请日：2018-01-10

Applicant: Industrial Technology Research Institute

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

IPC: H04N19/186 ,  H04N19/93 ,  H04N19/463 ,  H04N19/593 ,  H04N19/176 ,  H04N19/174 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/186 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/93

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.