Selective Convolutional Network: An Efficient Object Detector with Ignoring Background

• URL: http://arxiv.org/abs/2002.01205v1
• Date: Tue, 4 Feb 2020 10:07:01 GMT
• Title: Selective Convolutional Network: An Efficient Object Detector with Ignoring Background
• Authors: Hefei Ling, Yangyang Qin, Li Zhang, Yuxuan Shi, Ping Li
• Abstract summary: We introduce an efficient object detector called Selective Convolutional Network (SCN), which selectively calculates only on the locations that contain meaningful and conducive information. To solve it, we design an elaborate structure with negligible overheads to guide the network where to look next.
• Score: 28.591619763438054
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: It is well known that attention mechanisms can effectively improve the performance of many CNNs including object detectors. Instead of refining feature maps prevalently, we reduce the prohibitive computational complexity by a novel attempt at attention. Therefore, we introduce an efficient object detector called Selective Convolutional Network (SCN), which selectively calculates only on the locations that contain meaningful and conducive information. The basic idea is to exclude the insignificant background areas, which effectively reduces the computational cost especially during the feature extraction. To solve it, we design an elaborate structure with negligible overheads to guide the network where to look next. It's end-to-end trainable and easy-embedding. Without additional segmentation datasets, we explores two different train strategies including direct supervision and indirect supervision. Extensive experiments assess the performance on PASCAL VOC2007 and MS COCO detection datasets. Results show that SSD and Pelee integrated with our method averagely reduce the calculations in a range of 1/5 and 1/3 with slight loss of accuracy, demonstrating the feasibility of SCN.

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