A Unified Multi-scale Deep Convolutional Neural Network for Fast Object Detection

25 Jul 2016  ·  Zhaowei Cai, Quanfu Fan, Rogerio S. Feris, Nuno Vasconcelos ·

A unified deep neural network, denoted the multi-scale CNN (MS-CNN), is proposed for fast multi-scale object detection. The MS-CNN consists of a proposal sub-network and a detection sub-network. In the proposal sub-network, detection is performed at multiple output layers, so that receptive fields match objects of different scales. These complementary scale-specific detectors are combined to produce a strong multi-scale object detector. The unified network is learned end-to-end, by optimizing a multi-task loss. Feature upsampling by deconvolution is also explored, as an alternative to input upsampling, to reduce the memory and computation costs. State-of-the-art object detection performance, at up to 15 fps, is reported on datasets, such as KITTI and Caltech, containing a substantial number of small objects.

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Results from the Paper

Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Pedestrian Detection Caltech MS-CNN Reasonable Miss Rate 9.95 # 24
Face Detection WIDER Face (Hard) MSCNN AP 0.809 # 29


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