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Previous issue date: 2013-04-05 / The visualization of three-dimensional(3D)images is increasigly being sed in the area of medicine, helping physicians diagnose desease. the advances achived in scaners esed for acquisition of these 3d exames, such as computerized tumography(CT) and Magnetic Resonance imaging (MRI), enable the generation of images with higher resolutions, thus, generating files with much larger sizes. Currently, the images of computationally expensive one, and demanding the use of a righ and computer for such task. The direct remote acess of these images thruogh the internet is not efficient also, since all images have to be trasferred to the user?s equipment before the 3D visualization process ca start. with these problems in mind, this work proposes and analyses a solution for the remote redering of 3D medical images, called Remote Rendering (RR3D). In RR3D, the whole hedering process is pefomed a server or a cluster of servers, with high computational power, and only the resulting image is tranferred to the client, still allowing the client to peform operations such as rotations, zoom, etc. the solution was developed using web services written in java and an architecture that uses the scientific visualization packcage paraview, the framework paraviewWeb and the PACS server DCM4CHEE.The solution was tested with two scenarios where the rendering process was performed by a sever with graphics hadwere (GPU) and by a server without GPUs. In the scenarios without GPUs, the soluction was executed in parallel with several number of cores (processing units)dedicated to it. In order to compare our solution to order medical visualization application, a third scenario was esed in the rendering process, was done locally. In all tree scenarios, the solution was tested for different network speeds. The solution solved satisfactorily the problem with the delay in the transfer of the DICOM files, while alowing the use of low and computers as client for visualizing the exams even, tablets and smart phones / A visualiza??o de imagens tridimensionais (3D) est? cada vez mais presente na ?rea da medicina, auxiliando os m?dicos no diagn?stico de doen?as e na emiss?o de laudos. Com o avan?o dos equipamentos que geram imagens tomogr?ficas dos pacientes, como os de Tomografia Computadorizada (TC), est?o sendo geradas imagens cada vez mais n?tidas e, portanto, com resolu??es e tamanhos maiores. Atualmente, as imagens contidas em um exame de TC geralmente ocupam o tamanho de dezenas e centenas de megabytes, tornando o processo de visualiza??o 3D cada vez mais pesado - exigindo do usu?rio um equipamento com bom poder computacional. O acesso remoto ? estas imagens, via internet por exemplo, tamb?m n?o ? muito eficiente, pois todas as imagens precisam ser transferidas para o equipamento do usu?rio antes que o processo de visualiza??o 3D seja iniciado. Diante destes problemas (tamanho das imagens e acesso remoto), este trabalho envolve a cria??o e an?lise de um servi?o web para renderiza??o remota de imagens m?dicas 3D, denominado RR3D. Nele, todo o processo de renderiza??o volum?trica ser? realizado por um servidor, ou cluster de servidores, com alto poder computacional e somente a imagem 3D resultante ser? enviada ao cliente, permitindo que este ainda possa fazer opera??es como rota??o, zoom etc. O servi?o web ser? desenvolvido utilizando a linguagem Java e na arquitetura do projeto ser?o utilizados o programa de visualiza??o cient?fica Paraview, o framework ParaviewWeb e o servidor DCM4CHEE
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/18068 |
| Date | 05 April 2013 |
| Creators | Papaiz, Fabiano |
| Contributors | CPF:79228860472, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4791070J6, Aquino J?nior, Gibeon Soares de, CPF:02685578455, Valentim, Ricardo Alexsandro de Medeiros, CPF:87455021453, Mendes Neto, Francisco Milton, CPF:67304133449, http://lattes.cnpq.br/5725021666916341, Carvalho, Bruno Motta de |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Sistemas e Computa??o, UFRN, BR, Ci?ncia da Computa??o |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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