A Content-Based Late Fusion Approach Applied to Pedestrian Detection
This work addresses pedestrian detection for applications like autonomous driving, but it is incremental as it builds on existing fusion methods.
The paper tackles pedestrian detection by proposing a content-based late fusion method that reduces false alarms and enhances detection, achieving state-of-the-art results on ETH and Caltech datasets with fewer detectors.
The variety of pedestrians detectors proposed in recent years has encouraged some works to fuse pedestrian detectors to achieve a more accurate detection. The intuition behind is to combine the detectors based on its spatial consensus. We propose a novel method called Content-Based Spatial Consensus (CSBC), which, in addition to relying on spatial consensus, considers the content of the detection windows to learn a weighted-fusion of pedestrian detectors. The result is a reduction in false alarms and an enhancement in the detection. In this work, we also demonstrate that there is small influence of the feature used to learn the contents of the windows of each detector, which enables our method to be efficient even employing simple features. The CSBC overcomes state-of-the-art fusion methods in the ETH dataset and in the Caltech dataset. Particularly, our method is more efficient since fewer detectors are necessary to achieve expressive results.