arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1801.01769cs.CV
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3D-DETNet:一种单级视频车辆检测器

3D-DETNet: a Single Stage Video-Based Vehicle Detector

University of Science and Technology of China(中国科学技术大学)

Suichan Li

摘要:

基于视频的车辆检测在过去十年中受到了相当大的关注,并且有许多基于深度学习的检测方法可以应用于其中。然而,这些方法是针对静止图像设计的,并且直接将它们应用于视频车辆检测总是获得较差的性能。在这项工作中,我们提出了一种新的单级基于视频的车辆检测器集成了3DCovNet和焦点损失,称为3D-DETNet。该方法利用三维卷积网络和焦点丢失技术,较之其他针对静态图像设计的单阶段方法,更适合于视频中车辆的检测。多个视频帧最初被馈送到3D-DETNet以生成多个空间特征图,然后子模型3DConvNet将空间特征图作为输入以捕获时间信息,该时间信息被馈送到最终的全卷积模型以预测视频帧中的车辆位置。我们在UA-DETNet C车辆检测数据集上评估了我们的方法,与其他竞争方法相比,我们的3D-DETNet具有最佳性能,并保持了26 fps的更高检测速度。

英文摘要:

Video-based vehicle detection has received considerable attention over the last ten years and there are many deep learning based detection methods which can be applied to it. However, these methods are devised for still images and applying them for video vehicle detection directly always obtains poor performance. In this work, we propose a new single-stage video-based vehicle detector integrated with 3DCovNet and focal loss, called 3D-DETNet. Draw support from 3D Convolution network and focal loss, our method has ability to capture motion information and is more suitable to detect vehicle in video than other single-stage methods devised for static images. The multiple video frames are initially fed to 3D-DETNet to generate multiple spatial feature maps, then sub-model 3DConvNet takes spatial feature maps as input to capture temporal information which is fed to final fully convolution model for predicting locations of vehicles in video frames. We evaluate our method on UA-DETAC vehicle detection dataset and our 3D-DETNet yields best performance and keeps a higher detection speed of 26 fps compared with other competing methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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