基于渲染图像角度结构特征的三维模型检索方法

为了充分利用三维模型的颜色、形状、纹理等特征,提出以三维模型渲染图像为数据集,利用渲染图像角度结构特征实现三维模型检索。首先,该方法以三维模型渲染图像为测试集,利用已有类别标记的自然图像作为训练集,通过骨架形状上下文特征对渲染图像进行分类,提取角度结构特征,建立特征库；然后,对输入的自然图像提取角度结构特征,与特征库中的角度结构特征进行相似度匹配计算,实现三维模型检索。实验结果表明, 充分利用 渲染图像的颜色、形状和空间信息是实现三维模型检索的有效方法。

3D Model Retrieval Method Based on Angle Structure Feature of Render Image

In order to make full use of the color,shape,texture and other features in the 3D model,a 3D model retrieval method was proposed based on angle structure features of render images.Firstly,the 3D model render images are taken as a test dataset and the marked natural images are taken as a training set.The render images are classified based on their skeleton-associated shape context and the angle structure features are extracted to establish the feature library.Then,the angle structure features of the input natural images are extracted.The distance measurement method is used to calculate the similarity between the angle structure feature of input natural image and those features in the feature library.The experimental results show that the full utilization of the color,shape and color space information of the render image is an effective way to achieve 3D model retrieval.