Pyramid Person Matching Network for Person Re-identification
This work addresses person re-identification for surveillance and security applications, representing an incremental improvement over existing methods.
The paper tackles person re-identification by proposing a deep convolutional pyramid person matching network (PPMN) with a Pyramid Matching Module to handle spatial scale variations and misalignment, achieving improved rank-1 recognition rates on benchmark datasets.
In this work, we present a deep convolutional pyramid person matching network (PPMN) with specially designed Pyramid Matching Module to address the problem of person re-identification. The architecture takes a pair of RGB images as input, and outputs a similiarity value indicating whether the two input images represent the same person or not. Based on deep convolutional neural networks, our approach first learns the discriminative semantic representation with the semantic-component-aware features for persons and then employs the Pyramid Matching Module to match the common semantic-components of persons, which is robust to the variation of spatial scales and misalignment of locations posed by viewpoint changes. The above two processes are jointly optimized via a unified end-to-end deep learning scheme. Extensive experiments on several benchmark datasets demonstrate the effectiveness of our approach against the state-of-the-art approaches, especially on the rank-1 recognition rate.