ROI-based video hierarchical coding method and device, and medium
A hierarchical encoding and video technology, which is applied in the field of image processing, can solve the problems of overall video quality degradation and affect the user experience of cloud games, and achieve the effect of improving the experience
Pending Publication Date: 2022-02-01
杭州雾联科技有限公司
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Problems solved by technology
At present, when the host side uses the network to transmit video, it takes into account that the network bandwidth limits the amount of video data transmission. When the network bandwidth is small, the bit rate of the video is reduced to reduce the amount of video data transmission, but it will cause the overall quality of the video to decline. , affecting the experience of cloud game users
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[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of this application.
[0046] The core of the present application is to provide a method, device and medium for ROI-based video hierarchical coding.
[0047] In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the drawings and specific implementation methods.
[0048] This application can be based on a multi-channel streaming system, that is, multi...
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The invention discloses an ROI-based video hierarchical coding method and device and a medium. The method comprises the steps: grading a video after the video is captured to obtain a graded video; determining the ROI region of the video; determining the level of the ROI according to the graded video; and increasing the code rate of the ROI region according to the level so as to carry out compression coding on the video. Compared with the situation that the overall image quality of the video is reduced due to the fact that the overall code rate of the video is reduced when the network bandwidth is small, in order to meet the small network bandwidth, the image quality of the ROI can be guaranteed when the small network bandwidth is met by determining the ROI of the video, increasing the code rate of the ROI and then reducing the code rate of the non-ROI, namely, the image quality of the region of interest of a user is guaranteed, and the user experience is improved; and the code rate of the ROI is increased through the level of the ROI, so that different image quality requirements of a user on the ROI can be met.
Description
technical field [0001] The present application relates to the technical field of image processing, and in particular to a ROI-based video hierarchical coding method, device and medium. Background technique [0002] With the development of 5G network, codec technology, software and hardware technology, innovative businesses such as cloud games and cloud computer systems have gradually entered the public's field of vision and achieved certain development. The host side of the cloud game captures the video on the screen, encodes the video, and then transmits it to the client through the network. The client performs decoding, on-screen control and rendering for local video presentation. [0003] Due to the Internet environment, the network is often unstable and the bandwidth is limited. At present, when the host side uses the network to transmit video, it takes into account that the network bandwidth limits the amount of video data transmission. When the network bandwidth is sm...
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Login to View More IPC IPC(8): H04N21/4402H04N21/462H04N21/4725H04N21/478
CPCH04N21/440218H04N21/440245H04N21/4621H04N21/4725H04N21/4781
Inventor 王叶群蔡强彭寿林郭月丰
Owner 杭州雾联科技有限公司