Large Scale Open-Set Deep Logo Detection
This addresses the problem of scalable logo detection for applications like brand monitoring, though it appears incremental as it builds on existing two-stage detection and matching approaches.
The paper tackles open-set logo detection, enabling detection and recognition of unseen logo classes without retraining, and reports outperforming state-of-the-art methods by a large margin on a new dataset with 12.1k classes and Flickr-32.
We present an open-set logo detection (OSLD) system, which can detect (localize and recognize) any number of unseen logo classes without re-training; it only requires a small set of canonical logo images for each logo class. We achieve this using a two-stage approach: (1) Generic logo detection to detect candidate logo regions in an image. (2) Logo matching for matching the detected logo regions to a set of canonical logo images to recognize them. We constructed an open-set logo detection dataset with 12.1k logo classes and released it for research purposes.We demonstrate the effectiveness of OSLD on our dataset and on the standard Flickr-32 logo dataset, outperforming the state-of-the-art open-set and closed-set logo detection methods by a large margin. OSLD is scalable to millions of logo classes.