论文标题

重组与混乱地图的本地图像特征:纹理识别的应用

Reorganizing local image features with chaotic maps: an application to texture recognition

论文作者

Florindo, Joao

论文摘要

尽管卷积神经网络最近在纹理识别中取得了成功,但基于模型的描述符仍然具有竞争力,尤其是当我们无法访问大量注释数据进行培训时,模型的解释是一个重要问题。在基于模型的方法中,分形几何形状一直是最受欢迎的方法之一,尤其是在生物学应用中。然而,分形是在混乱理论中研究的非线性操作员的更广泛模型家族的一部分。在这种情况下,我们在这里提出了一个基于混乱的本地描述符,以识别纹理识别。更具体地说,我们将图像映射到三维欧几里得空间中,在此三维结构上迭代混乱的地图,然后将其转换回原始图像。从每个迭代中的混乱转换图像中,我们收集本地描述符(在这里我们使用本地二进制模式),这些描述符构成了纹理的特征表示。关于基准数据库的分类以及基于叶子表面质地的基于基准数据库的分类以及巴西植物物种的鉴定,我们的方法的性能得到了验证。即使与文献中的一些基于学习的现代方法相比,达到的结果证实了我们对竞争表现的期望。

Despite the recent success of convolutional neural networks in texture recognition, model-based descriptors are still competitive, especially when we do not have access to large amounts of annotated data for training and the interpretation of the model is an important issue. Among the model-based approaches, fractal geometry has been one of the most popular, especially in biological applications. Nevertheless, fractals are part of a much broader family of models, which are the non-linear operators, studied in chaos theory. In this context, we propose here a chaos-based local descriptor for texture recognition. More specifically, we map the image into the three-dimensional Euclidean space, iterate a chaotic map over this three-dimensional structure and convert it back to the original image. From such chaos-transformed image at each iteration we collect local descriptors (here we use local binary patters) and those descriptors compose the feature representation of the texture. The performance of our method was verified on the classification of benchmark databases and in the identification of Brazilian plant species based on the texture of the leaf surface. The achieved results confirmed our expectation of a competitive performance, even when compared with some learning-based modern approaches in the literature.

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