作者单位
摘要
1 华中科技大学 人工智能与自动化学院 多谱信息处理技术国家级重点实验室,湖北 武汉 430074
2 上海交通大学 机器人研究所,上海 200240
提出了一种新的解决夜光遥感复杂背景问题的单阶段深度卷积检测网络,首先通过提取高维特征再特征选择的思想设计分类网络提取语义特征,并研究不同的通道数网络对降噪的影响;提出灰度能量的先验框匹配,将低噪声高质量的匹配框输入SSD检测网络,并使用积分图思想简化计算;使用可变形卷积以适应目标的形变,并获取更强的几何特征表达能力;通过加入顺序连接与密集连接改进全局语义模块,引入了网络的跨层信息交互,其注意力图综合考虑了高低感受野以有效区分小型目标和背景噪声。在夜光遥感数据集上通过实验验证了所设计的网络相比于其他单阶段网络具有优势,对于复杂背景下的建筑区具有较好的检测效果。
模式识别与智能系统 夜光遥感 深度卷积网络 建筑区检测 复杂背景 pattern recognition and intelligent system night light remote sensing depth convolution network building area detection complex background 
红外与毫米波学报
2021, 40(3): 369
作者单位
摘要
武汉大学 电气与自动化学院,武汉 430072
首先介绍了我国严峻的火灾形势,阐明现有气动和火箭发射灭火弹装置的研究现状,针对射程不足、火工品使用限制等问题,提出采用电磁线圈发射器发射灭火弹进行灭火,基于电流丝模型法设计了一种10级线圈发射器模型,以脉冲电容器作为初始能源,采用续流电路对线圈进行时序放电,可将7.2 kg抛体加速至最高速度171 m/s,出口速度154 m/s,发射效率达15%,分析表明现有电磁线圈发射器能够满足灭火弹的发射需要。提出一种智能化无人电磁弹射灭火弹消防系统,智能指挥控制系统利用无人机采集火场信息,制定灭火策略,指挥无人电磁发射灭火车发射灭火弹实现精准高效灭火,根据灭火效能评估结果调整灭火方案,直至完成灭火任务。
消防 灭火弹 电磁发射器 智能系统 fire protection fire-extinguishing bomb electromagnetic launcher intelligent system 
强激光与粒子束
2020, 32(2): 025023
Author Affiliations
Abstract
1 Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
2 Department of Informatics Engineering, Faculty of Engineering, Universitas Abdurrab, 28291 Pekanbaru, Riau, Indonesia
3 Department of Electrical Engineering, Faculty of Engineering, Andalas University, Limau Manis Campus, 25163 Padang, Sumatera Barat, Indonesia
4 Department of Pathology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
This study develops a novel cervical precancerous detection system by using texture analysis of field emission scanning electron microscopy (FE-SEM) images. The processing scheme adopted in the proposed system focused on two steps. The first step was to enhance cervical cell FE-SEM images in order to show the precancerous characterization indicator. A problem arises from the question of how to extract features which characterize cervical precancerous cells. For the first step, a preprocessing technique called intensity transformation and morphological operation (ITMO) algorithm used to enhance the quality of images was proposed. The algo-rithm consisted of contrast stretching and morphological opening operations. The second step was to characterize the cervical cells to three classes, namely normal, low grade intra-epithelial squamous lesion (LSIL), and high grade intra-epithelial squamous lesion (HSIL). To differen-tiate between normal and precancerous cells of the cervical cell FE-SEM images, human papillomavirus (HPV) contained in the surface of cells were used as indicators. In this paper, we investigated the use of texture as a tool in determining precancerous cell images based on the observation that cell images have a distinct visual texture. Gray level co-occurrences matrix (GLCM) technique was used to extract the texture features. To confirm the system's perfor-mance, the system was tested using 150 cervical cell FE-SEM images. The results showed that the accuracy, sensitivity and specificity of the proposed system are 95.7%, 95.7% and 95.8%, respectively.
Cervical cancer detection electron image image processing features extraction intelligent system 
Journal of Innovative Optical Health Sciences
2017, 10(2): 1650045
作者单位
摘要
1 空军工程大学航空航天工程学院,西安710038
2 西北工业大学电子信息学院,西安710072
3 光电控制技术重点实验室,河南 洛阳471009
航空作战 火控系统 功能作用 智能化 air combat fire control system function intelligent system 
电光与控制
2013, 20(12): 1

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