Unlock instant, AI-driven research and patent intelligence for your innovation.

An optimization method for video enhancement scene

An optimization method and video enhancement technology, applied in the fields of instruments, stereo photography, optics, etc., can solve the problems of simple and rough, difficult to meet, and complex, and achieve the effect of reducing the number of cameras and improving the display efficiency.

Active Publication Date: 2019-11-26
南京数维测绘有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The clipping method based solely on the bounding box of the viewing area is too simple and rough, which may cause the invisible camera to be misjudged as a visible camera, while the method based on the intersection of the viewing frustum and the viewing area geometry is very accurate, but it is too complicated and difficult to meet the needs of users. Visibility pixel scale to intuitively set the actual needs of visibility rules

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An optimization method for video enhancement scene
  • An optimization method for video enhancement scene
  • An optimization method for video enhancement scene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to describe the technical solution disclosed in the present invention in detail, further elaboration will be made below in conjunction with the accompanying drawings and specific implementation methods.

[0029] A method for optimizing a video enhancement scene, the process is as follows figure 1 As shown, the specific steps are as follows:

[0030] (1) Build a camera spatial index

[0031] (1.1) Camera field of view construction: construct the camera field of view according to camera parameters. The camera field of view is defined by four parameters, the parameters are the vertical angle fovy, the aspect ratio aspect of the field of view, the distance n from the near clipping plane to the main viewpoint, and the distance f from the far clipping plane to the main viewpoint. Such as figure 2 Among them, fovy is the angle between the surface EKL and the surface EJM, the aspect ratio is BC / AB, the near clipping plane is the plane ABCD, and the far clipping pla...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for optimizing a video enhancement scene. The method comprises the following steps: (1) constructing a camera space index; (2) quickly screening a visible camera candidate set; (3) judging the visibility of the camera. The present invention combines the fast screening and fine clipping methods, first quickly screens the camera set to obtain a visible candidate set, and then uses a three-dimensional rasterization method to accurately count the visible pixel ratio of the cameras in the visible candidate set to determine whether to clip the camera. On the premise of ensuring the fusion effect, the display efficiency of the video enhancement scene is improved by reducing the number of cameras participating in the fusion calculation.

Description

technical field [0001] The invention relates to a display optimization technology of a video enhancement scene, in particular to a method for optimizing a video enhancement scene. Background technique [0002] The display optimization of the 3D scene, the current existing method is to cut the scene based on the main viewpoint, intersect the frustum with the 3D model, cut the 3D model that is not within the current view range, and only load and display the 3D model within the view range model, reducing the amount of data that needs to be processed to improve display efficiency. Since the 3D model is often composed of thousands of small patches, the intersection operation is quite inefficient. Generally, the scene graph is established based on the bounding box of the 3D model to optimize the scene clipping operation, but the clipping efficiency is often the bottleneck that affects the display performance of the 3D scene. question. [0003] In video-enhanced 3D scenes, the fu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/204H04N13/243H04N13/293G03B35/08
CPCG03B35/08
Inventor 胡斌李磊杨亚宁施杨峰
Owner 南京数维测绘有限公司