一种基于装备三维模型的数码迷彩图案设计方法

数码迷彩设计是实现伪装效果的主要关键环节，面向自动涂装作业的迷彩设计是发展趋势与研究热点。通过目标建模方法构建装备四边形三维网格模型，基于分形布朗模型的迷彩生成方法得到装备目标最小外接矩形体五面展开数码迷彩图案；运用最小法矢角纹理映射方法实现二维、三维迷彩图案转换；基于开放图形库和微软基础类库实现的人工交互功能模块，完成图案优化修改。仿真验证与喷涂试验结果表明：输出的数码迷彩图案符合背景特征，草原、荒漠、林地、丛林背景的平均灰度对比和纹理相似度分别为0.18、0.45，且满足自动涂装作业输入要求。

A Digital Pattern Design Method Based on Equipment Three-dimensional Model

Digital pattern design is a key to achieve camouflage effect. Pattern design for automatic painting operation is the development trend and research hotspots. A three-dimensional quadrilateral mesh model of military equipment is constructed by using the object modeling method.The five-sided unfold digital camouflage pattern of the minimum enclosing rectangular body from target is obtained by using the camouflage generation method based on fractal Brownian model, the transformation between two-dimensional and three-dimensional camouflage patterns is realized by using the texture mapping method based on the minimum normal angle, and the pattern optimization and modification are completed by using the artificial interactive function module based on OpenGL and MFC. The simulated and painting experimental results show that the three-dimensional digital camouflage pattern conforms to the background characteristics and meets the input requirements of automatic painting operation. Key