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    ENCODING METHOD AND ENCODER
    22.
    发明申请
    ENCODING METHOD AND ENCODER 有权
    编码方法和编码器

    公开(公告)号：US20160217341A1

    公开(公告)日：2016-07-28

    申请号：US14995186

    申请日：2016-01-13

    Applicant: Industrial Technology Research Institute

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

    IPC: G06K9/46 ,  H04N1/64 ,  G06K9/62

    CPC classification number: G06K9/4642 ,  G06K9/4652 ,  G06K9/6223 ,  H04N1/648 ,  H04N19/593 ,  H04N19/93

    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.

    Abstract translation: 在实施例中，编码方法包括生成与编码单元中的所有像素对应的直方图。 编码方法还包括根据直方图寻找第一颜色值，其中直方图中的第一颜色值的​​第一数量的像素大于或等于第一阈值。 编码方法还包括根据直方图在第一颜色值的​​第一范围内寻找第二颜色值。 编码方法还包括当第二颜色值的第二数量的像素大于或等于第二阈值时，从直方图去除第一颜色值中的一个或多个像素。 编码方法还包括当第二数量的像素小于第二阈值时，将第一颜色值添加到初始颜色表中。 在本公开中还提供了编码器。

    ENCODING METHOD, DECODING METHOD, ENCODING/DECODING SYSTEM, ENCODER, AND DECODER
    23.
    发明申请
    ENCODING METHOD, DECODING METHOD, ENCODING/DECODING SYSTEM, ENCODER, AND DECODER 审中-公开
    编码方法，解码方法，编码/解码系统，编码器和解码器

    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。

    ENCODING METHOD FOR POINT CLOUD COMPRESSION AND ELECTRONIC DEVICE
    28.
    发明申请
    ENCODING METHOD FOR POINT CLOUD COMPRESSION AND ELECTRONIC DEVICE 有权

    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.

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