光学学报, 2018, 38 (12): 1215008, 网络出版: 2019-05-10   

场景耦合的空对地多任务遥感影像智能检测算法 下载: 1243次

Scene-Coupled Intelligent Multi-Task Detection Algorithm for Air-to-Ground Remote Sensing Image
作者单位
火箭军工程大学导弹工程学院, 陕西 西安 710025
摘要
在空对地遥感检测中,目标所占视场比例小、视角单一、易受背景干扰且视场高度变化大,这给传统深度学习检测算法带来了挑战。针对该问题,提出一种场景耦合的多任务目标检测算法。首先,设计了一种新的场景耦合目标检测网络结构,将场景分类特征图和目标检测特征图在同一尺度上进行镜像融合,丰富了网络特征描述的细粒度;其次,设计了差异化激活模块,实现特征通道的重要性筛选;然后,推导了多任务耦合的网络优化函数,实现了目标检测损失和场景分类损失的同步优化;最后,建立了空对地目标检测多任务数据集,对所提方法的有效性进行验证。实验证明,本文算法有效提升了空对地小目标检测的精度和稳健性,同时能够自适应不同高度的识别检测多任务需求,为空基无人平台对地智能检测提供了新的思路和方法。
Abstract
In air-to-ground remote sensing detection, the object has the characteristics of small field of view and single viewing angle, which is susceptible to background interference. At the same time, the height of the field of view varies greatly, which brings challenges to the traditional deep learning detection algorithm. To solve the problem, a scene-coupled multi-task object detection algorithm is proposed. First, a new scene-coupled object detection network structure is designed, which mirrors and fuses the scene classification feature map and the object detection feature map on the same scale to enrich the fine-grain of the feature description. Second, a differentiated activation module is designed to realize the importance screening of feature channels. Then, the optimization function of multi-task coupling is derived, which can simultaneously optimize the scene classification loss and object detection loss. Finally, an air-to-ground detection multi-task dataset is established to verify the effectiveness of proposed method. The experimental results show that the proposed algorithm effectively improves the accuracy and robustness of air-to-ground small object detection, and can adapt to different heights to identify multi-task requirements, which provides a new idea and method for space-based unmanned platform intelligent detection.

刘星, 陈坚, 杨东方, 贺浩. 场景耦合的空对地多任务遥感影像智能检测算法[J]. 光学学报, 2018, 38(12): 1215008. Xing Liu, Jian Chen, Dongfang Yang, Hao He. Scene-Coupled Intelligent Multi-Task Detection Algorithm for Air-to-Ground Remote Sensing Image[J]. Acta Optica Sinica, 2018, 38(12): 1215008.

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