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Method for generating rapid movement line shadow of cartoon animation object

A technology of fast motion and cartoon animation, applied in animation production, image data processing, instruments, etc., can solve problems such as difficult convolution operations, inability to use physical knowledge, and model building, achieve real-time speed, improve production efficiency, and save paper Effect

Inactive Publication Date: 2010-02-03
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since cartoon fast-moving lines are hand-drawn two-dimensional pictures with artistic style, they are difficult to obtain by convolution operation, and it is impossible to use physical knowledge to model them

Method used

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  • Method for generating rapid movement line shadow of cartoon animation object
  • Method for generating rapid movement line shadow of cartoon animation object
  • Method for generating rapid movement line shadow of cartoon animation object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] Further illustrate the present invention below in conjunction with accompanying drawing.

[0059] The object rapid motion line shadow generation process of the cartoon animation of the present invention is as follows: figure 1 As shown, the process has the following steps in sequence:

[0060] 1) The user interactively inputs the moving direction of the cartoon object;

[0061] 2) Input hand-drawn cartoon images of fast-moving objects;

[0062] 3) Carry out edge detection to the object on the input cartoon fast moving object image;

[0063] 4) Using the input direction information and object outline, determine a set of fast-moving shadow baselines spaced apart from each other and their distribution positions in the opposite direction of the moving direction of the object (see Figure 5 );

[0064] 5) Enter the fast motion line shadow type command to generate short line shadow or long line shadow:

[0065] If the execution instruction is a short-line shadow, then: ...

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PUM

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Abstract

The invention discloses a generation method of object rapid moving hachures of cartoon animation, which utilizes an input object shape and moving direction information to definite a baseline shape ofthe object rapid moving hachures and distribution positions of the object rapid moving hachures on the rear portion of the moving of an object, and corresponding types of rapid moving hachures are drew on a hachures baseline according to the types of input hachures. The method can avoid renewedly drawing different animation sequences of the rapid moving hachures of cartoon objects if the objects and the moving direction are changed when the animation are drew by manual, thereby being capable of greatly increasing the making efficiency of the animation. The method of the invention directly generates animation sequence images and stores, thereby getting rid of using paper which are used to draw the animation of the rapid moving hachures of the cartoon object through manual, and being furthercapable of saving a lot of paper.

Description

technical field [0001] The invention relates to a method for generating cartoon line animation, in particular to a method for generating fast moving line shadows of objects in cartoon animation. Background technique [0002] To express the fast movement of objects in cartoon animation, the animator usually draws some short-line shadows or long-line shadows behind the fast-moving objects to achieve the effect of visually emphasizing the fast-moving objects. Since it is often necessary to express the fast movement of objects of different shapes in the animation production process, each object can also move quickly at any angle, so the animator has to draw the fast movement line shadows of different objects at different angles, which is inefficient and wasteful paper. [0003] Cartoon fast motion line shadow drawing is related to the shape, color, motion speed and motion direction of moving objects. In realistic animation, convolution operation is generally used to generate mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T13/00
Inventor 于金辉
Owner ZHEJIANG UNIV
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