2007 IEEE International Workshop on Imaging Systems and Techniques最新文献_第5页

Cognitive Understanding Based Image Analysis Systems (UBIAS) of the Diagnostic Type 诊断型基于认知理解的图像分析系统(UBIAS)

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379569

L. Ogiela

引用次数: 12

Development of a high resolution, portable x-ray imager for security applications 开发一种高分辨率，便携式x射线成像仪的安全应用

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379590

G. Zentai, L. Partain

引用次数: 4

Particle filters for multi-face detection and tracking with automatic clustering 带有自动聚类的多人脸检测和跟踪粒子过滤器

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379594

L. Stasiak, A. Pacut

引用次数: 8

Transform domain steganography in DVD video and audio content 变换域隐写术在DVD视频和音频内容

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379609

S. Badura, S. Rymaszewski

引用次数: 14

Image Analysis for Measuring Motion Parameters with a CCD Camera CCD相机运动参数测量的图像分析

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379606

K. Tsiakmakis, T. Laopoulos

引用次数: 7

Digital Near Field Beamforming for Efficient 3-D Underwater Acoustic Image Generation 高效三维水声图像生成的数字近场波束形成

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379570

M. Palmese, A. Trucco

{"title":"Digital Near Field Beamforming for Efficient 3-D Underwater Acoustic Image Generation","authors":"M. Palmese, A. Trucco","doi":"10.1109/IST.2007.379570","DOIUrl":"https://doi.org/10.1109/IST.2007.379570","url":null,"abstract":"To generate volumetric underwater acoustic images a planar array of sensors is required to collect the signals coming from a 3-D scene. The method most frequently used to perform the spatial elaboration of the acquired signals is the beamforming algorithm. In general, owing to the huge number of sensors and the massive number of beam signals, computational load becomes prohibitive for real-time image generation. An efficient frequency beamforming implementation based on the use of the Chirp Zeta Transform (CZT) has been proposed in the literature for the case of a scene placed in the far-field and involving linear arrays. In this paper, we propose an algorithm to perform CZT beamforming on the wideband signals collected by a planar array and generated by a scene placed in the near-field. This extension becomes simpler and feasible thanks to (i) a non-conventional method of defining the azimuth and elevation angles; (ii) the Fresnel approximation in the delay computation; (iii) an adequate organization of the different operations. In terms of computational complexity, the analysis compares the solution developed with traditional beamforming techniques, showing several advantages of the proposed method.","PeriodicalId":329519,"journal":{"name":"2007 IEEE International Workshop on Imaging Systems and Techniques","volume":"756 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117007499","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: 7

A Pixel-Embedded Charge-Pumping CMOS Photonic Mixer Device, Implementation and Perspectives 一种像素内嵌电荷泵浦CMOS光子混频器装置，实现与展望

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379592

M. Gottardi, N. Massari

引用次数: 0

Measurement of Strokes in Hand Writing Japanese Character 手写日文笔画的测量

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 2007-05-05 DOI: 10.1109/IST.2007.379558

T. Sano, H. Ukida, H. Yamamoto

{"title":"Measurement of Strokes in Hand Writing Japanese Character","authors":"T. Sano, H. Ukida, H. Yamamoto","doi":"10.1109/IST.2007.379558","DOIUrl":"https://doi.org/10.1109/IST.2007.379558","url":null,"abstract":"Handwriting is one of the most natural ways of writing characters. A pen tablet and a mouse are generally used as computer input devices. However, the feeling of writing is extremely different between the writing with the pen tablets or the mouse and the writing on the papers with the brush pen. We propose a new computer input device. A brush pen is a traditional writing material. The path of the brush pen is inputted to computers by using a CCD camera. At first, the inputted strokes are coded into histograms of the moving direction. The inputted characters are identified by the correlation values between the histograms of the inputted characters and the histograms of the reference pattern. Additionally, the line width of the strokes written by the brush pen is approximated by the straight lines. And marginal distributions of the approximated character for the horizontal distribution and for the vertical distribution are obtained. The result of comparison about the marginal distribution is used as subsidiary parameters for the character recognition. By using the proposed system, the natural hand writing characters can be inputted into the computer. And By using the two kinds of pattern recognition method, the improvement of the pattern recognition is achieved.","PeriodicalId":329519,"journal":{"name":"2007 IEEE International Workshop on Imaging Systems and Techniques","volume":"236 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126624373","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

IST 2007 Technical Program Tracks and Sessions IST 2007技术计划跟踪和会议

2007 IEEE International Workshop on Imaging Systems and Techniques Pub Date : 1900-01-01 DOI: 10.1109/ist.2007.379565

M. Donelli, M. Benedetti, P. Rocca, A. Massa, M. Pastorino

引用次数: 0