EDGE DETECTION USING COMBINED ISOTROPIC AND DIRECTIONAL WAVELET TRANSFORM

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MOUSAVINIA J.; AGHA GOLZADEH A.; TINATI M.A.

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Paper Information

Journal: JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ) Year:2005 | Volume:30 | Issue:1 (37) ELECTRICAL ENG. Page(s): 49-61

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Title

EDGE DETECTION USING COMBINED ISOTROPIC AND DIRECTIONAL WAVELET TRANSFORM

Author(s)

MOUSAVINIA J. | AGHA GOLZADEH A. | TINATI M.A. | Issue Writer Certificate

Keywords

EDGE DETECTIONQ2

WAVELET TRANSFORMQ2

ISOTROPIC WAVELETQ2

DIRECTIONAL WAVELETQ2

Abstract

In this paper we propose a new approach for solving the EDGE DETECTION problem using combined isotropic and directional WAVELET TRANSFORM. A primary knowledge about the direction of the gradient of the image, the direction of the probable edges, is extracted by the ordinary separable ISOTROPIC WAVELET-based edge detector; then based on the computed direction of the probable edges, the adaptive nonseparable DIRECTIONAL WAVELET-based edge detector is applied on these pixels and the new magnitude of the WAVELET TRANSFORM coefficients is computed and compared to a certain threshold value; then the pixel is classified as edge points or not edge points. This method detects the edges of the image with superior quality and performance comparing to the ordinary wavelet-based EDGE DETECTION in the presence of noise; and has less computational cost compared to the DIRECTIONAL WAVELET-based EDGE DETECTION methods presented before.

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APA: Copy

MOUSAVINIA, J., AGHA GOLZADEH, A., & TINATI, M.A.. (2005). EDGE DETECTION USING COMBINED ISOTROPIC AND DIRECTIONAL WAVELET TRANSFORM. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ), 30(1 (37) ELECTRICAL ENG.), 49-61. SID. https://sid.ir/paper/43852/en

Vancouver: Copy

MOUSAVINIA J., AGHA GOLZADEH A., TINATI M.A.. EDGE DETECTION USING COMBINED ISOTROPIC AND DIRECTIONAL WAVELET TRANSFORM. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ)[Internet]. 2005;30(1 (37) ELECTRICAL ENG.):49-61. Available from: https://sid.ir/paper/43852/en

IEEE: Copy

J. MOUSAVINIA, A. AGHA GOLZADEH, and M.A. TINATI, “EDGE DETECTION USING COMBINED ISOTROPIC AND DIRECTIONAL WAVELET TRANSFORM,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TABRIZ), vol. 30, no. 1 (37) ELECTRICAL ENG., pp. 49–61, 2005, [Online]. Available: https://sid.ir/paper/43852/en

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