Multi-Level Feature Descriptor for Robust Texture Classification via Locality-Constrained Collaborative Strategy

Details Multi-Level Feature Descriptor for Robust Texture Classification via Locality-Constrained Collaborative Strategy Multi-Level Feature Descriptor for Robust Texture Classification via Locality-Constrained Collaborative Strategy

2012-03-02

arxiv.org/abs/1203.0488v1

Computer Science

Computer Vision and Pattern Recognition

Scientific paper

This paper introduces a simple but highly efficient ensemble for robust texture classification, which can effectively deal with translation, scale and changes of significant viewpoint problems. The proposed method first inherits the spirit of spatial pyramid matching model (SPM), which is popular for encoding spatial distribution of local features, but in a flexible way, partitioning the original image into different levels and incorporating different overlapping patterns of each level. This flexible setup helps capture the informative features and produces sufficient local feature codes by some well-chosen aggregation statistics or pooling operations within each partitioned region, even when only a few sample images are available for training. Then each texture image is represented by several orderless feature codes and thereby all the training data form a reliable feature pond. Finally, to take full advantage of this feature pond, we develop a collaborative representation-based strategy with locality constraint (LC-CRC) for the final classification, and experimental results on three well-known public texture datasets demonstrate the proposed approach is very competitive and even outperforms several state-of-the-art methods. Particularly, when only a few samples of each category are available for training, our approach still achieves very high classification performance.

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