Learning from Counting: Leveraging Temporal Classification for Weakly Supervised Object Localization and Detection

Chia-Yu Hsu; Wenwen Li

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arXiv · 2103.04009

Learning from Counting: Leveraging Temporal Classification for Weakly Supervised Object Localization and Detection

Chia-Yu Hsu·Wenwen Li

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Abstract

This paper reports a new solution of leveraging temporal classification to support weakly supervised object detection (WSOD). Specifically, we introduce raster scan-order techniques to serialize 2D images into 1D sequence data, and then leverage a combined LSTM (Long, Short-Term Memory) and CTC (Connectionist Temporal Classification) network to achieve object localization based on a total count (of interested objects). We term our proposed network LSTM-CCTC (Count-based CTC). This "learning from counting" strategy differs from existing WSOD methods in that our approach automatically identifies critical points on or near a target object. This strategy significantly reduces the need of generating a large number of candidate proposals for object localization. Experiments show that our method yields state-of-the-art performance based on an evaluation on PASCAL VOC datasets.

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Chia-Yu Hsu, Wenwen Li. 2021-03-06. Learning from Counting: Leveraging Temporal Classification for Weakly Supervised Object Localization and Detection. https://arxiv.org/abs/2103.04009

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