Method of extracting contour in B-scan ultrasonic images

Guangde Song; Hui Zhang

doi:10.1117/12.481596

30 August 2002 Method of extracting contour in B-scan ultrasonic images

Guangde Song, Hui Zhang

Proceedings Volume 4925, Electronic Imaging and Multimedia Technology III; (2002) https://doi.org/10.1117/12.481596
Event: Photonics Asia, 2002, Shanghai, China

Abstract

Due to the low resolution and few gray-levels in B-scan ultrasonic images, it is difficult to recognize their contours. This paper presents a new method to extract the contour of B-scan ultrasonic images. To get the image's edge, the discrete dyadic wavelet transform has been used on the image's histogram, and by detecting the zero-crossings after wavelet transform in the histogram, the image contours are obtained. An edge mould has been constructed based on the artificial extraction of concerned contours, which can be used to extract the particular contours of sequential images automatically. This algorithm has been successfully employed in contour extraction of human kidney B-scan ultrasonic images thus demonstrating its practical and satisfactory application potential.

Citation Download Citation

Guangde Song and Hui Zhang "Method of extracting contour in B-scan ultrasonic images", Proc. SPIE 4925, Electronic Imaging and Multimedia Technology III, (30 August 2002); https://doi.org/10.1117/12.481596

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