Method for automatically generating waterflow strictire chart of real waterflow video

Abstract

The invention relates to an automatic generation method of the water flow structural chart of real water flow videos, which pertains to the field of video processing technology and computer visual method. The generation method comprises the following steps: a. an image containing water flow video is inputted; b. optic flows are preliminarily estimated; c. water flow areas and background areas are divided; d. the video is varied by removing the angle of view; e. whether the varying of angle of view and the water flow area is converged are judged, if not, step b is repeated; if so, step f is carried out; f. panoromic videos with fixed angle of view are generated; g. the optic flow is optimized by iteration-interpolation algorithm; h. the water flow structural lines are picked up and the water flow structural chart is finally acquired. The method of the invention overcomes the shortcomings of roughness and imprecision, and the generated water flow structural lines thereof can truly reflect the directions and sizes of the water flows at every position in the video, with the stylization of the water flow video.

Description

technical field [0001] The invention belongs to the field of video processing technology and computer vision method, and in particular relates to a method for automatically generating a water flow structure diagram of a real water flow video. Background technique [0002] Natural scenery such as mountains and rivers is often the object of art works. For the performance of water, the change of water flow direction and water potential due to the obstruction of river banks and rocks is the key. In artistic animation, such as ink animation, there are a large number of depictions of waterfalls or rivers. Using real video as a reference to automatically generate water flow animation can greatly improve the efficiency of artistic animation creation and reduce the cost of creation. To achieve this goal, the automatic detection of the water flow structure that reflects the painting structure in the real video is the key. [0003] Because the scenes of waterfalls and rivers are gen...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is that the simplest method for extracting water flow from video in the past is to use the joint constraint method to extract according to the characteristics in the color domain, but only a rough result can be obtained, while for the dynamic texture segmentation method, segmentation The region is not accurate, in order to overcome many shortcomings in these existing methods, it is necessary to explore a new method, the purpose of this invention is to provide a real water flow video water flow structure diagram automatic generation method, the method can refer to and Using real fluid videos such as waterfalls and rivers, automatically generate line drawings of the water flow structure of the original video scene

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