中国科学院机构知识库网格系统: 检索

海天线检测方法研究综述 期刊论文 OAI收割
激光与光电子学进展, 2020, 卷号: 57, 期号: 16, 页码: 1-15
作者: 冯天伟; 刘金清; 肖金超; 熊俊峰

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收藏 | 浏览/下载：8/0 | 提交时间：2020/01/18

图像处理海天线检测无人艇视觉传感器线性拟合霍夫变换小波变换

基于边缘相位编码的复杂背景下海天线检测 期刊论文 OAI收割
光学学报, 2017, 卷号: 037
作者: 孙熊伟; 徐青山; 蔡熠; 石敏; 李松

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收藏 | 浏览/下载：8/0 | 提交时间：2020/10/26

图像处理海天线检测相位滤波器竞争编码双边滤波

海天背景红外图像舰船目标检测方法研究 学位论文 OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院大学, 2015
吴芳

收藏 | 浏览/下载：177/0 | 提交时间：2015/09/02

舰船目标检测海天线检测显著性分析红外图像 ship target detection sea-sky line detection saliency analysis infrared images

Research on infrared dim-point target detection and tracking under Sea-Sky-Line complex background 会议论文 OAI收割
作者: Dong YX(董宇星); Li Y(李焱); Zhang HB(张海波)

收藏 | 浏览/下载：3/0 | 提交时间：2012/05/12

Research on infrared dim-point target detection and tracking under sea-sky-line complex background (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者: Dong Y.-X.; Zhang H.-B.; Li Y.; Li Y.; Li Y.

收藏 | 浏览/下载：96/0 | 提交时间：2013/03/25

Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms such as adaptive background prediction detecting method. When background has dispersion-decreasing structure the traditional target detection algorithms would be more useful. But when the background has large gray gradient such as sea-sky-line sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature in our opinion from the perspective of mathematics the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore the purpose of the image preprocessing is to reduce the effects from noise also to raise the SNR of image and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics the median filter is used to eliminate noise improve signal-to-noise ratio then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Research on tracking approach to low-flying weak small target near the sea (EI CONFERENCE) 会议论文 OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者: Xue X.-C.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

Automatic target detection is very difficult in complicate background of sea and sky because of the clutter caused by waves and clouds nearby the sea-level line. In this paper in view of the low-flying target near the sea is always above the sea-level line we can first locate the sea-level line and neglect the image data beneath the sea-level line. Thus the noise under the sea-level line can be suppressed and the executive time of target segmentation is also much reduced. A new method is proposed which first uses neighborhood averaging method to suppress background and enhance targets so as to increase SNR and then uses the multi-point multi-layer vertical Sobel operator combined with linear least squares fitting to locate the sea-level line lastly uses the centroid tracking algorithm to detect and track the target. In the experiment high frame rate and high-resolution digital CCD camera and high performance DSP are applied. Experimental results show that this method can efficiently locate the sea-level line on various conditions of lower contrast and eliminate the negative impact of the clutter caused by waves and clouds and capture and track target real-timely and accurately.

A small target detection algorithm based on multi-scale energy cross 会议论文 OAI收割
IEEE International Conference on Robotics, Intelligent Systems and Signal Processing, Changsha, China, October 8-13, 2003
作者: Li ZJ(李长军); Wei Y(魏颖); Shi ZL(史泽林)

收藏 | 浏览/下载：25/0 | 提交时间：2012/06/06

multi-scale analysis mutual eneigy cross target detection sea-level line detection

A method for automatic infrared point target detection in a sea background based on morphology and wavelet transform 会议论文 OAI收割
3rd International Symposium on Multispectral Image Processing and Pattern Recognition, BEIJING, China, October 20-22, 2003
作者: Wen PZ(温佩芝); Shi ZL(史泽林); Yu HB(于海斌); Wu XJ(吴晓军)

收藏 | 浏览/下载：12/0 | 提交时间：2012/06/06

infrared point-target wavelet transform morphology target detection and segmentation sea background

An automatic target detection algorithm based on wavelet analysis for infrared image small target in background of sea and sky 会议论文 OAI收割
Conference on Acquisition, Tracking, and Pointing XVII, ORLANDO, FL, April 22-22, 2003
作者: Wei Y(魏颖); Shi ZL(史泽林); Yu HB(于海斌)

收藏 | 浏览/下载：15/0 | 提交时间：2012/06/06

image recognition automatic target detection wavelet multiresolution analysis edge detection sea-level line

Wavelet analysis based detection algorithm for infrared image small target in background of sea and sky 会议论文 OAI收割
3rd International Symposium on Image and Signal Processing and Analysis (ISPA), Rome, ITALY, September 18-20, 2003
作者: Wei Y(魏颖); Shi ZL(史泽林); Yu HB(于海斌)

收藏 | 浏览/下载：24/0 | 提交时间：2012/06/06

image recognition automatic target detection wavelet multiresolution analysis edge detection sea-level line