2015 8th International Congress on Image and Signal Processing (CISP)最新文献_第8页

The design and implementation of interactive game based on PTAM 基于PTAM的交互式游戏的设计与实现

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7407848

Fengquan Zhang, Jiaojiao Guo, Bing Wang, Jing Jiang

引用次数: 1

An inverse projective mapping-based approach for robust rail track extraction 一种基于逆投影映射的鲁棒轨道提取方法

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7408003

Zhong-li Wang, X. Wu, Y. Yan, Chunxiao Jia, B. Cai, Zhenhui Huang, Guiguo Wang, Tianbai Zhang

引用次数: 11

A correction algorithm of migration through Doppler resolution cell for bistatic inverse synthetic aperture radar 双基地逆合成孔径雷达多普勒分辨单元偏移校正算法

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7408124

Yi Wang, Defeng Chen, Zhengpin Liu

引用次数: 0

A Homocentric Squares Filter for pulmonary nodule enhancement based on the CT images 基于CT图像的肺结节增强同心圆方形滤波器

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7407914

Wen-Jing Zhang, Xiao Hu, Chen-Hui Liu, Shao-Hu Peng, Jin-Ming Zhao, Cai-Rong Zou

{"title":"A Homocentric Squares Filter for pulmonary nodule enhancement based on the CT images","authors":"Wen-Jing Zhang, Xiao Hu, Chen-Hui Liu, Shao-Hu Peng, Jin-Ming Zhao, Cai-Rong Zou","doi":"10.1109/CISP.2015.7407914","DOIUrl":"https://doi.org/10.1109/CISP.2015.7407914","url":null,"abstract":"Automatic pulmonary nodule detection in Computer Tomographic (CT) images is a challenge task for the Computer Aided Diagnosis (CAD) systems. This paper proposes a novel nodule enhancement filter (Homocentric Squares Filter) for automatic nodule detection based on CT characteristic and shape feature. First, the bright regions in the image are enhanced by calculating the CT value variation between an inner square and an outer hollow square. Then, a line-restrained function is constructed to eliminate line-like region response of the filter. Simultaneously, a uniformity function is defined to exclude the marginal region and the corner region response of the filter. Finally, the output of the proposed filter is a combination of the CT value variation function, line-restrained function and uniformity function, which can enhance those nodule-like regions and avoid the response of line-like, marginal and corner regions. Moreover, the integral image technique is applied to speed up the processing of the filter. Experimental results showed that the proposed filter outperformed the selective filter according to the nodule enhancement effect and the processing speed.","PeriodicalId":167631,"journal":{"name":"2015 8th International Congress on Image and Signal Processing (CISP)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131298303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Two dimensional direction of arrival estimation for co-prime L-shaped array using sparse reconstruction 基于稀疏重建的共素数l形阵列二维到达方向估计

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7408121

Qinghua Liu, Xiaodong Yi, Liangnian Jin, Wei Chen

引用次数: 16

Jamming monitoring and anti-jamming by polarization diversity reception in the satellite navigation system 卫星导航系统中极化分集接收的干扰监测与抗干扰

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7408083

Li Sun, Bigang Jing, Yue Cheng, Liang Yuan

引用次数: 3

Indoor and outdoor image classification with bilateral filter 利用双边滤波器对室内和室外图像进行分类

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7407953

Yafeng Li, Ying-wei Lin

引用次数: 2

Temporal and Spatial Analysis of Water Extent in Poyang Lake using HJ-1 data 基于HJ-1数据的鄱阳湖水量时空分析

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7408027

He Haixia, Tang Tong

{"title":"Temporal and Spatial Analysis of Water Extent in Poyang Lake using HJ-1 data","authors":"He Haixia, Tang Tong","doi":"10.1109/CISP.2015.7408027","DOIUrl":"https://doi.org/10.1109/CISP.2015.7408027","url":null,"abstract":"Temporal and Spatial Analysis of Water Extent in Poyang Lake is significant to reveal ecological environment evolution and drought formation mechanism and the influence in the Poyang lake basin. Water extent is the key index to characterize the scale and intensity of drought disaster. The seasonal water change of Poyang Lake is obvious. There is high landscape heterogeneity because the terrain features distribution is highly complex and discontinuous in the dry season. At the same time spectral characteristics of water and its surroundings are complicated in that the microscopic formation mechanism of water is complicated. It is difficult to perform water information extraction. The commonly used water information extraction methods such as classification method, image segmentation method, threshold method, region growing method can't meet the requirements on the efficiency and accuracy. In this paper, Water information extraction and validation of 2011 was performed using HJ-1 CCD data based on decision tree method. Then temporal and spatial analysis of water extent was performed. At last, the relationship between the water extent and disaster loss information was analyzed. The results indicated that the decision tree method significantly improved the efficiency and accuracy compared to the traditional classification method and visual interpretation. It spent 2 hour in extracting water of dry season which need 2 days using visual interpretation method. The accuracy of the method was 94.5 percent of the accuracy using visual interpretation. It can meet the requirement of disaster reduction and solve the problem in dynamic extracting water extent of high landscape heterogeneity. There is high correlation between the temporal and spatial change of the water extent and the drought event.","PeriodicalId":167631,"journal":{"name":"2015 8th International Congress on Image and Signal Processing (CISP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121382524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Number plate recognition in noisy image 噪声图像中的车牌识别

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7407927

Y. Nguwi, W. J. Lim

引用次数: 12

Measurement of high frequency AC signals based on the true root mean square value 基于真均方根值的高频交流信号测量

2015 8th International Congress on Image and Signal Processing (CISP) Pub Date : 2015-10-01 DOI: 10.1109/CISP.2015.7408135

Ming Zhang, Nuo Li

{"title":"Measurement of high frequency AC signals based on the true root mean square value","authors":"Ming Zhang, Nuo Li","doi":"10.1109/CISP.2015.7408135","DOIUrl":"https://doi.org/10.1109/CISP.2015.7408135","url":null,"abstract":"The root mean square (RMS) of high frequency AC signals is the key characteristic for data acquisition, but its value is hard to be measured directly by common data acquisition system. In this paper, we gave a brief introduction about the measurement for RMS value of high frequency AC signal. The sampling computation method is an intuitive way but it needs high hardware requirements. The precision rectification method is easy to realize by operational amplifiers but it can only be used in several special waveforms and isn't a true RMS value method. The thermal conversion method is a true RMS value method and good at wide bandwidth but its accuracy is low. The true RMS value method based on logarithmic computing has high accuracy but its bandwidth is too narrow. In this paper, we adopted the true RMS value method based on logarithmic computing in engine manipulation ground experiment. With this principle, we designed a kind of signal conditioning module which can change the high frequency AC signals into DC values and be acquired by data acquisition cards. In the end, we checked the accuracy with serial experiments such as the RMS accuracy test and frequency response test. We proved that the accuracy of the signal conditioning module is better than 1% when the highest frequency of input signal is less than 500k Hz.","PeriodicalId":167631,"journal":{"name":"2015 8th International Congress on Image and Signal Processing (CISP)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116528952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0