Computer Graphics, Imaging and Visualisation (CGIV 2007)最新文献_第6页

Microscopic Image Segmentation for the Clinical Support System 临床支持系统显微图像分割

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.58

ByoungChul Ko, MiSuk Seo, J. Nam

引用次数: 7

Shortest Traversal Path of n Circles in Layered Manufacturing Applications n个圆的最短遍历路径在分层制造中的应用

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.75

Chang-Chien Chou, Yu-Kumg Chen, S. Chou

{"title":"Shortest Traversal Path of n Circles in Layered Manufacturing Applications","authors":"Chang-Chien Chou, Yu-Kumg Chen, S. Chou","doi":"10.1109/CGIV.2007.75","DOIUrl":"https://doi.org/10.1109/CGIV.2007.75","url":null,"abstract":"Layered manufacturing in rapid prototyping is to fabricate prototype by using a laser beam to trace the cross-sectional contours of a product layer by layer. Such cross-sections of geometrical objects differ by layers and generally have more than one continuous contour in each layer. In an attempt to facilitate an efficient approach for path planning, the problem is simplified by approximating each of the continuous contours with its minimum circumscribed circle. The tool path planning for traversing all the contours in the same cross-section can then be simplified as the path planning of circles. With combing the algorithm of traveling salesman problem (TSP) and the shortest traversal path function of three circles, an odd-even circle adjusting algorithm is proposed in this paper for deriving the shortest traversal path of n circles. When the traversing order of the n circles is obtained by the preprocessing TSP algorithm, the shortest traversal path of n circles can be derived in linear time. It is superior to that of the random selection method. Experiments are carried out for arbitrary n circles to demonstrate the computational advantage of the proposed method.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"340 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114058268","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

Using Image Processing Technique for the Studies on Temporal Development of Air Quality 利用图像处理技术研究空气质量的时间变化

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.86

C. J. Wong, M. Jafri, K. Abdullah, H. Lim, K. L. Low

{"title":"Using Image Processing Technique for the Studies on Temporal Development of Air Quality","authors":"C. J. Wong, M. Jafri, K. Abdullah, H. Lim, K. L. Low","doi":"10.1109/CGIV.2007.86","DOIUrl":"https://doi.org/10.1109/CGIV.2007.86","url":null,"abstract":"Nowadays visual information becomes more and more important in almost all areas of our life. This information is represented and processed digitally. Digital image processing is ubiquitous, with applications ranging from television to tomography, from photography to printing, from robotics to remote sensing. In this study, we developed an algorithm to convert multispectral image pixel values acquired by an Internet Video Surveillance camera into quantitative values of concentrations of particulate matter with diameter less than 10 micrometers (PM10). This algorithm was based on the regression analysis of relationship between the measured reflectance components from a surface material and the atmosphere. The newly developed algorithm can be applied to compute the PM10 values. These computed PM10 values were compared to other standard values measured by a DustTrakTM meter. The correlation results showed that this newly develop algorithm produced a high degree of accuracy as indicated by high correlation coefficient (R2) of 7566 and low root-mean-square-error (RMS) values of plusmn3.8306 mug/m3. A program was written by using Microsoft Visual Basic 6.0 to download still images automatically from the camera via the internet and utilized the newly developed algorithm to determine PM10 concentration automatically and continuously. This study indicates that the technique of using Internet Video Surveillance camera images can be a useful tool for monitoring temporal development of air quality.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121781272","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: 8

Hierarchical segmentation for unstructured and unfiltered range images 非结构化和未滤波范围图像的分层分割

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.46

C. Aguiar, S. Druon, A. Crosnier

引用次数: 3

Dual-Pivot Pose Determination of Human Head Based on Head Movement 基于头部运动的人体头部双枢轴姿态确定

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.36

Fakhrul Hazman Bin Yusoff, R. Rahmat, M. N. Sulaiman, M. Shaharom, H. Majid

引用次数: 1

Point Based Rendering of Implicit 4-Dimensional Surfaces 隐式四维曲面的点绘制

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.65

R. Balsys, K. Suffern

引用次数: 3

Capturing Outlines of Planar Images by Cubic Spline using Stochastic Evolution 基于随机进化的三次样条捕获平面图像的轮廓

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.23

M. Sarfraz, M. T. Parvez, Aliea Rizvi

引用次数: 1

Urdu Spoken Digits Recognition Using Classified MFCC and Backpropgation Neural Network 基于分类MFCC和反向传播神经网络的乌尔都语语音数字识别

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.85

A. Muhammad, Z. Mansoor, M. S. Mughal, S. Mohsin

{"title":"Urdu Spoken Digits Recognition Using Classified MFCC and Backpropgation Neural Network","authors":"A. Muhammad, Z. Mansoor, M. S. Mughal, S. Mohsin","doi":"10.1109/CGIV.2007.85","DOIUrl":"https://doi.org/10.1109/CGIV.2007.85","url":null,"abstract":"Neural networks have found profound success in the area of pattern recognition. In the recent years there has been use of neural network for speech recognition. In this paper backpropagation neural network has been used for isolated spoken Urdu digits recognition. Mel frequency cepstral coefficients (MFCC) has been used to represent speech signal. Dimensions of speech features were reduced to a vector of 39 values. Only 39 values from MFCC features speech are fed to the neural network having more than one hidden layers with varying number of neurons, for training and recognition An analysis has been made between different number of hidden layers and different number of neurons on hidden layers. It has been found that results for these 39 values are similar to that obtained using complete MFCC features that range from 804 to 67x39. With the use of 39 values on input layer, computational complexity and time for training and recognition of neural network is reduced. In order to evaluate the significance of the proposed method on data other than Urdu digits, 30 English words have been trained and recognized that gave 98% results. All the implementation has been done inMATLAB.","PeriodicalId":433577,"journal":{"name":"Computer Graphics, Imaging and Visualisation (CGIV 2007)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130235352","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: 20

Neuro-Wavelet Based Approach for Image Compression 基于神经小波的图像压缩方法

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.61

Vipula Singh, K. Shrikanta, P. Murthy, Bangalore

引用次数: 14

A Cloth Design System by Intuitive Operations Supporting Mouse Device besides Phantom Device and Its User Evaluation 一种除幻影装置外支持鼠标装置的直观操作布料设计系统及其用户评价

Computer Graphics, Imaging and Visualisation (CGIV 2007) Pub Date : 2007-08-14 DOI: 10.1109/CGIV.2007.5

K. Miyahara, Y. Okada

引用次数: 5