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Drawing rendering method based on video sub-layer

A video and painting technology, applied in the field of sketch-based video layering and stylized painting rendering, which can solve problems such as strong visual changes, lack of brush changes, and video flickering.

Inactive Publication Date: 2010-12-29
XI AN JIAOTONG UNIV
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

In this way, different brush parameters may be used when drawing the same object in the video scene in different frames, resulting in strong visual changes and causing video flickering
In addition, traditional video drawing uses uniform brush model parameters on the same frame, lacking content-specific brush changes

Method used

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  • Drawing rendering method based on video sub-layer
  • Drawing rendering method based on video sub-layer
  • Drawing rendering method based on video sub-layer

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Embodiment Construction

[0061] The present invention will be described in detail below with reference to the accompanying drawings.

[0062] figure 1 is a flowchart of the present invention. Such as Figure 1 As shown, the present invention is mainly divided into 12 steps:

[0063] Step 1: Given the input video, select a frame in the video sequence as a key frame. The frame needs to contain as many colors and objects as possible in the video scene. If the video sequence is too long, the video sequence needs to be decomposed into several segments, and each segment selects its own key frame.

[0064] Step 2: Designate the layered seed area by sketching on the key frame. According to the color, motion and other information of the object contained in the key frame, the corresponding area is drawn, and the layered index is specified by different gray values ​​drawn, so as to obtain the layered seed area on the key frame

[0065] For the outline with a gray value of c, its coverage area is used as ...

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Abstract

The invention provides a drawing rendering method based on a video sub-layer, comprising the following steps: by a video sub-layer method of the computer visual field, decomposing the input video sequence as the corresponding sub-layer expression according to parameters such as color and movement, etc, then performing a stylization drawing rendering on each sub-layer; different from the traditional way of directly arranging a drawing brush on each frame of the video, the invention provides a new method for arranging the corresponding drawing brushes on the sub-layers; the brushes are optimized, propagated and arranged on the whole video sequence according to the parameters such as color and movement, etc. corresponding to each sub-layer so that the video flash is greatly reduced, and the stylization drawing video with better continuity between the frames is generated; by a way of arranging the brushes with a pre-set style on different sub-layers, the method is convenient for generating the videos with a plurality of drawing styles, thus, a stylization rendering result with more artistic effects is created.

Description

technical field [0001] The invention relates to a video layering-based painting rendering method, in particular to a sketch-based video layering and stylized painting rendering method. Background technique [0002] With the development of computer technology, multimedia and digital entertainment are more and more favored by the public, and computer stylized rendering technology has gradually become a research hotspot. As a common form of multimedia, video has the advantages of large amount of information and strong expressiveness, so the stylized rendering of video has been widely valued. There are already mature methods for stylized painting rendering of a single image, but if a single image rendering method is simply used to draw each frame of the video, it will cause serious visual flicker. Therefore, how to reduce video flicker and improve frame-to-frame continuity is the key to video stylized rendering. The stylized drawing method based on video layering effectively s...

Claims

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Application Information

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IPC IPC(8): G06T11/00
Inventor 黄华张磊付田楠
Owner XI AN JIAOTONG UNIV
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