Image Processing Architectures
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. A flexible multichannel FPGA and PC-Based ultrasound system for medical imaging research: initial phantom experiments
IntroductionIn this paper, we present the initial results of a fully programmable 128-channel FPGA and PC-based system that has been developed for medical ultrasound (US) imaging research in our University laboratory (Federal University of Technology - Paraná, Brazil).MethodsIn order to demonstrate the feasibility of the US research system, two applications
Res. Biomed. Eng.. Publicado em: 29/09/2015
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2. DSCam:: uma plataforma hardware-software para operações de visão computacional
The advent of integrated circuits with low power consumption and powerful processor capability, ally to many others news tecnologies, has became possible a new generation of systems with embedded inteligence, as smart-cameras. The smart-cameras are embedded vision systems that capture high-level descriptions of the scene and analyze it to extract important d
Publicado em: 2009
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3. IMAGE PROCESSING AND COMPUTER VISION ALGORITHMS FOR GRAPHICS CARDS PARALLEL ARCHITECTURES / ALGORITMOS PARA PROCESSAMENTO DE IMAGENS E VISÃO COMPUTACIONAL PARA ARQUITETURAS PARALELAS EM PLACAS GRÁFICAS
Diversas tarefas de Visão Computacional (VC) são formadas por operações aritméticas, replicadas sobre grandes volumes de dados. Esta caracterização descreve também as qualidades desejadas ao considerar uma aplicação qualquer como boa candidata a usufruir do crescente poder de processamento do hardware gráfico. Esta tese formula um conjunto de algo
Publicado em: 2009
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4. Exploração do paralelismo em arquiteturas para processamento de imagens e vídeo / Parallelism exploration in architectures for video and image processing
O processamento de vídeo e imagens é uma área de pesquisa de grande importância atualmente devido ao incremento de utilização de imagens nas mais variadas áreas de atividades: entretenimento, vigilância, supervisão e controle, medicina, e outras. Os algoritmos utilizados para reconhecimento, compressão, descompressão, filtragem, restauração e me
Publicado em: 2007
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5. GPGPU based image segmentation livewire algorithm implementation.
This thesis presents a Graphic Processing Unit (GPU) implementation of the Livewire algorithm, instead of using traditional architectures, like the CPU. The GPU is a Single Instruction Multiple Data (SIMD) architecture. The algorithm is divided in three phases: Sobel or Laplacian filter convolution, image modeling as a grid graph and solving the non-negative
Publicado em: 2007
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6. Paralelização de um classificador contextual de imagens / Parallelimplementationofcontextualclassiferforremotesensingimages
This work presents basic concepts about digital image processing, with emphasis on classification of images from multi-spectral sensors. We have chosen two classification algorithms (MAXVER and ICM), to exemplify the application of the proposed methodologies. Before showing these methodologies, we evaluated the situation of present algorithms, in the SPRING
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/06/2000
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7. Paralelização de um classificador contextual de imagens / Parallelimplementationofcontextualclassiferforremotesensingimages
This work presents basic concepts about digital image processing, with emphasis on classification of images from multi-spectral sensors. We have chosen two classification algorithms (MAXVER and ICM), to exemplify the application of the proposed methodologies. Before showing these methodologies, we evaluated the situation of present algorithms, in the SPRING
Publicado em: 2000
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8. Reevaluation of envelope profiles and cytoplasmic ultrastructure of mycobacteria processed by conventional embedding and freeze-substitution protocols.
The cell envelope architectures and cytoplasmic structures of Mycobacterium aurum CIPT 1210005, M. fortuitum, M. phlei 425, and M. thermoresistible ATCC 19527 were compared by conventional embedding and freeze-substitution methods. To ascertain the integrity of cells during each stage of the processing regimens, [1-14C]acetate was incorporated into the mycol