壁画图元提取与情节动画交互研究  

Research on the Interaction between Mural Primitive Extraction and Plot Animation

作　　者：解思佳 刘志强[1] 唐传谦 刘晓静[1] XIE Si-jia;LIU Zhi-qiang;TANG Chuan-qian;LIU Xiao-jing(Department of Computer Technology and Applications,Qinghai University,Xi′ning 810016,China)

机构地区：[1]青海大学计算机技术与应用系,青海西宁810016

出　　处：《软件导刊》2022年第8期164-170,共7页Software Guide

基　　金：青海省科技计划项目(2021-ZJ-717)。

摘　　要：由于传承断代化,壁画文化的深层含义晦涩难懂,基于虚拟动画技术实现壁画内容的动态数字化,为传统壁画文化的保护与传承提供新思路。首先通过原始图像获取灰度级分布,根据黑白场阈值和中间调调节灰度分布情况,以提高图像的对比度和亮度,增强前景与背景的边缘细节信息并提取图元;然后通过图元角色三角面网格特征建立二维骨骼关系完成绑定与权重设置,基于蒙皮矩阵和权重因子完成骨骼与网格顶点的坐标映射并生成骨骼矩阵;最后根据时间轴线解析骨骼矩阵中的顶点相对坐标,通过坐标映射关系计算顶点的世界坐标完成图元角色的动作刻画。依托壁画文化虚拟动画技术实现了从图像到图元、从单图元到多图元的交互,完成了壁画图元的静态数字化和情节动画交互的动态数字化研究。The deep meaning of mural culture is obscure due to its inheritance and dating,the dynamic digitization of mural content based on virtual animation technology provides new ideas for the protection and inheritance of traditional mural culture.Specifically,the gray level distribution is obtained through the original image,and the gray level distribution is adjusted according to the black-and-white field threshold and intermediate tone,so as to improve the contrast and brightness of the image,enhance the edge details of the foreground and background,and extract the primitive.Through the triangular mesh features of primitive characters,the two-dimensional bone relationship is established to complete the binding and weight setting.Based on the skin matrix and weight factor,the coordinate mapping between bone and mesh vertices is completed and the bone matrix is generated.The relative coordinates of the vertices in the bone matrix are analyzed according to the time axis,and the world coordinates of the vertices are calculated through the coordinate mapping relationship to complete the action description of the primitive character.Relying on the in-depth analysis of mural culture and virtual animation technology,this paper studies the interaction from image to graphic element,from single graphic element to multi graphic element,and completes the research on the static digitization of mural graphic element and the dynamic digitization of plot animation interaction.

关 键 词：壁画图元 图元提取 骨骼驱动 情节动画 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]