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Sensors (Basel) ; 11(10): 9160-81, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22163688

RESUMO

This paper presents a novel phase unwrapping architecture for accelerating the computational speed of digital holographic microscopy (DHM). A fast Fourier transform (FFT) based phase unwrapping algorithm providing a minimum squared error solution is adopted for hardware implementation because of its simplicity and robustness to noise. The proposed architecture is realized in a pipeline fashion to maximize throughput of the computation. Moreover, the number of hardware multipliers and dividers are minimized to reduce the hardware costs. The proposed architecture is used as a custom user logic in a system on programmable chip (SOPC) for physical performance measurement. Experimental results reveal that the proposed architecture is effective for expediting the computational speed while consuming low hardware resources for designing an embedded DHM system.


Assuntos
Algoritmos , Holografia/métodos , Processamento de Imagem Assistida por Computador/métodos , Microscopia/métodos , Computadores , Análise de Fourier , Processamento de Sinais Assistido por Computador , Software , Fatores de Tempo
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