数字凹浮雕生成算法

Sunken Bas-Relief Generation Algorithm

针对数字浅浮雕设计中风格类型较单一的缺点,提出一个凹浮雕生成算法。从法线角度来解决如何构建凹浮雕问题。首先从法线图中抽取轮廓线以及内部重要线条型特征,计算基于特征线的距离图及其对应的法线图;再将轮廓线、线条和基曲面法线合成一整张法线图;最后由合成的法线图重建高度场以构建浅浮雕。实验结果表明,该方法能便捷地制作为数字化凹浮雕模型。

Traditional 3D model-based bas-relief modeling methods are often limited to monotonic relief styles. Presents a method for sunken bas-relief modeling using normal images. Gives an input normal image, the solution includes extracting the silhouette and inside curve features with important visual cues, computing a distance map from the feature lines and its normal map, combining the involved normal images to generate the final normal image, and integrating the composite normal image to generate a height field. Experiments with a range of 3D models show that this method can effectively generate digital sunken bas-reliefs.