公开(公告)号：US12125173B2

公开(公告)日：2024-10-22

申请号：US17624237

申请日：2020-07-14

Applicant: ZTE CORPORATION

Inventor： Jisong Ai ,  Ke Xu ,  Dehui Kong ,  Ning Wang ,  Xin Liu ,  Jing You ,  Fang Zhu

IPC: G06T5/70 ,  G06T7/246

CPC classification number: G06T5/70 ,  G06T7/248 ,  G06T2207/10016 ,  G06T2207/20021 ,  G06T2207/20076

Abstract: The present disclosure discloses a video denoising method and device, and a computer-readable storage medium. The video denoising method includes: dividing each video frame in an input video frame sequence into sub-image blocks, and calculating a block variance of each of the sub-image blocks; calculating an average variance of the sub-image blocks in a current video frame according to the calculated block variances, determining a noise level of the current video frame according to the average variance, selecting a denoise strength and a noise characteristic curve that match the noise level; and denoising the current video frame according to the denoise strength and the noise characteristic curve.

公开(公告)号：US10104400B2

公开(公告)日：2018-10-16

申请号：US14423624

申请日：2013-07-29

Applicant: ZTE CORPORATION

Inventor： Daxiong Xie ,  Ning Wang ,  Wen Zuo ,  Xiaomu Lu

IPC: H04N19/50 ,  H04N19/85 ,  H04N19/12 ,  H04N19/186 ,  H04N19/44 ,  H04N19/66 ,  H04N19/172

Abstract: A video encoding and decoding method, device and system is disclosed, wherein the method includes: after using a standard encoding algorithm to complete encoding a luminance component in a current image, judging, based on refreshing images preset by an encoding device, whether there is a need to encode a chrominance component in the current image in accordance with the standard encoding algorithm or not, and encoding the corresponding chrominance component in accordance with the standard encoding algorithm if the current image is any one of the refreshing images preset by the encoding device, otherwise, not encoding the corresponding chrominance component in accordance with the standard encoding algorithm, wherein an encoding reconstruction of the chrominance component is obtained by copying a corresponding chrominance component in a reference image of luminance component, so that a finally output code stream does not comprise information of the corresponding chrominance component.

公开(公告)号：US20150215651A1

公开(公告)日：2015-07-30

申请号：US14423624

申请日：2013-07-29

Applicant: ZTE CORPORATION

Inventor： Daxiong Xie ,  Ning Wang ,  Wen Zuo ,  Xiaomu Lu

IPC: H04N19/85 ,  H04N19/44 ,  H04N19/50 ,  H04N19/186 ,  H04N19/66

CPC classification number: H04N19/85 ,  H04N19/12 ,  H04N19/172 ,  H04N19/186 ,  H04N19/44 ,  H04N19/50 ,  H04N19/66

Abstract: A video encoding and decoding method, device and system is disclosed, wherein the method includes: after using a standard encoding algorithm to complete encoding a luminance component in a current image, judging, based on refreshing images preset by an encoding device, whether there is a need to encode a chrominance component in the current image in accordance with the standard encoding algorithm or not, and encoding the corresponding chrominance component in accordance with the standard encoding algorithm if the current image is any one of the refreshing images preset by the encoding device, otherwise, not encoding the corresponding chrominance component in accordance with the standard encoding algorithm, wherein an encoding reconstruction of the chrominance component is obtained by copying a corresponding chrominance component in a reference image of luminance component, so that a finally output code stream does not comprise information of the corresponding chrominance component.

Abstract translation: 公开了一种视频编码和解码方法，装置和系统，其中该方法包括：在使用标准编码算法完成对当前图像中的亮度分量进行编码之后，基于由编码装置预设的刷新图像，判断是否存在 需要根据标准编码算法对当前图像中的色度分量进行编码，并且如果当前图像是由编码装置预设的任何一个刷新图像，则根据标准编码算法对相应的色度分量进行编码 否则，根据标准编码算法不对相应的色度分量进行编码，其中通过在亮度分量的参考图像中复制相应的色度分量来获得色度分量的编码重建，使得最终的输出码流不 包括对应的色度分量的信息。