We present an interpretable deep model for fine-grained visual recognition. At the core of our method lies the integration of region-based part discovery and attribution within a deep neural network. Our model is trained using image-level object labels, and provides an interpretation of its results via the segmentation of object parts and the identification of their contributions towards classification. To facilitate the learning of object parts without direct supervision, we explore a simple prior of the occurrence of object parts. We demonstrate that this prior, when combined with our region-based part discovery and attribution, leads to an interpretable model that remains highly accurate. Our model is evaluated on major fine-grained recognition datasets, including CUB-200, CelebA and iNaturalist. Our results compare favorably to state-of-the-art methods on classification tasks, and our method outperforms previous approaches on the localization of object parts.

本研究提供了一种可解释的深度模型，通过在深层神经网络中将基于区域的部件发现和归因结合起来实现细粒度视觉识别，并通过图像级对象标签进行训练，可以有效地识别图像中的对象部件，提高细粒度识别和对象部件定位的准确性。

可解释准确的细粒度识别：区域分组方法