公开(公告)号：US11503297B2

公开(公告)日：2022-11-15

申请号：US17295266

申请日：2019-11-20

Applicant: ZTE Corporation

Inventor： Hong Wang ,  Ke Xu ,  Bo Huang ,  Chengqiang Liu ,  Sheng Luo ,  Guoning Lu ,  Degen Zhen

IPC: H04N19/42 ,  H04N19/60 ,  H04N19/85 ,  H04N19/124

Abstract: Provided are method and device for inverse quantization and inverse transformation and non-transitory computer-readable storage medium. The method includes: performing inverse quantization processing on input data; determining whether secondary inverse transform processing is necessary; performing, in response to determining that the secondary inverse transform processing is necessary, the secondary inverse transform processing on data obtained through the inverse quantization processing, first one-dimensional inverse transform control processing on data obtained through the secondary inverse transform processing, and second one-dimensional inverse transform control processing on data obtained through the first one-dimensional inverse transform control processing; and performing, in response to determining that the secondary inverse transform processing is unnecessary, first one-dimensional inverse transform control processing on the data obtained through the inverse quantization processing, and second one-dimensional inverse transform control processing on the data obtained through the first one-dimensional inverse transform control processing.

公开(公告)号：US20220122233A1

公开(公告)日：2022-04-21

申请号：US17293749

申请日：2019-11-13

Applicant: ZTE Corporation

Inventor： Dehui KONG ,  Ke Xu ,  Wei Yang ,  Jing YOU ,  Xin Liu ,  Jisong Al

IPC: G06T5/00

Abstract: Provided are a method and apparatus for presenting image for a VR device, a device and a non-transitory computer-readable storage medium. The method for presenting image for a VR device includes steps of: acquiring input image data; establishing a correspondence between the input image data and output image data in a polar coordinate system, the polar coordinate system having a pole which is an intersection of a center of a field of view of the VR device and a display plane; obtaining image data to be presented according to the output image data; and presenting the image data to be presented on the basis of a convex lens.

公开(公告)号：US11595613B2

公开(公告)日：2023-02-28

申请号：US17311407

申请日：2019-12-10

Applicant: ZTE CORPORATION

Inventor： Chengqiang Liu ,  Ke Xu ,  Dehui Kong ,  Limin He ,  Wei Yang

IPC: H04N7/01 ,  H04N5/14

Abstract: A de-interlacing processing method, a de-interlacing processing device and a computer-readable storage medium are provided. The method includes acquiring image content characteristic information of a pixel point to be interpolated; and determining according to the image content characteristic information whether a de-interlacing algorithm based on motion adaptive or a de-interlacing algorithm based on motion compensation is adopted to perform de-interlacing processing.

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：US11474594B2

公开(公告)日：2022-10-18

申请号：US17311393

申请日：2019-12-16

Applicant: ZTE CORPORATION

Inventor： Dehui Kong ,  Ke Xu ,  Xiao Zhang ,  Bin Han ,  Chong Xiang ,  Shuai Jiao ,  Hong Wang ,  Guoning Lu ,  Degen Zhen

IPC: G06F3/01 ,  G09G3/00 ,  G06T3/00

Abstract: A virtual reality display method, device, apparatus and storage medium are provided. The method includes: acquiring multimedia data to be displayed and a visible region of a viewer on a curved display surface, wherein the visible region is obtained by projecting a visible range of the viewer to the curved display surface, and is not larger than a display area of the curved display surface; determining target curvatures of at least two positions in the visible region of the viewer, wherein in the target curvatures, target curvatures of different positions are related to a distance to a center of the visible region of the viewer; adjusting, based on the target curvatures of the at least two positions in the visible region, a curvature of a corresponding position on the curved display surface; and mapping the multimedia data to be displayed to the curved display surface having the adjusted curvature.