2009 4th IEEE Conference on Industrial Electronics and Applications 2009
DOI: 10.1109/iciea.2009.5138252
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Implementation of Otsu's thresholding process based on FPGA

Abstract: Otsu's global automatic image thresholding method has been widely employed in various real-time applications. In this paper, an implementation on FPGA (Field Programmable Gate Array) using Altera's Cyclone II series chip for the BCVC (Between Class Variance Computation) of Otsu's method is presented to meet these high speed requirements. The hardware implementation takes advantage of parallel computation capabilities offered by FPGA technology. The proposed architecture employs Altera's megacore to eliminate t… Show more

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Cited by 16 publications
(11 citation statements)
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“…Some of the stages in the method seem to be possible to parallelize (e.g. Otsu's method [11] and morphological opening and closing [12]). It should decrease the execution time significantly.…”
Section: Discussionmentioning
confidence: 99%
“…Some of the stages in the method seem to be possible to parallelize (e.g. Otsu's method [11] and morphological opening and closing [12]). It should decrease the execution time significantly.…”
Section: Discussionmentioning
confidence: 99%
“…The Otsu's method and their approaches implemented on FPGA (Field Programmable Gate Array) produce satisfactory results in terms of speed and resource consumption when analyzed individually (Ashari and Hornsey, 2004;Jianlai et al, 2009;Tian, Lam, and Srikanthan, 2003). However, the implementation of statistical calculations based on the histogram for some types of images, can provide similar results to other methods, therefore using more resources of the FPGA.…”
Section: Introductionmentioning
confidence: 95%
“…The Optimal Threshold Computation module (Figure 1) is responsible for carrying out the comparison process to choose the maximum variance between classes and inform the optimal threshold through the corresponding index (Jianlai et al, 2009). The Otsu's method and their approaches implemented on FPGA (Field Programmable Gate Array) produce satisfactory results in terms of speed and resource consumption when analyzed individually (Ashari and Hornsey, 2004;Jianlai et al, 2009;Tian, Lam, and Srikanthan, 2003).…”
Section: Introductionmentioning
confidence: 99%
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“…Dada estas características do método apresentado por Otsu (1979), verificou-se que as poucas implementações em hardware de métodos para binarização são baseadas neste algoritmo. Contudo, as implementações encontradas na literatura apresentam limitações, como o uso de LUTs para o cálculo do limiar para evitar o uso de operações matemáticas complexas (Tian, Lam, Srikanthan (2003)), quanto no tamanho da imagem a ser processada (Jianlai et al(2009)). Por isso, o desenvolvimento baseado no método proposto por Otsu, (1979), para que haja o cálculo do limiar de forma rápida entre uma aquisição de imagem e outra, a implementação de uma arquitetura especifica, ou seja, dedicada para isso é de grande importância.…”
Section: Conclusãounclassified