Fast vessel identification using polyphase decomposition and intercomponent processing

Zikuan Chen; Sabee Y. Molloi

doi:10.1117/12.467135

9 May 2002 Fast vessel identification using polyphase decomposition and intercomponent processing

Zikuan Chen, Sabee Y. Molloi

Proceedings Volume 4684, Medical Imaging 2002: Image Processing; (2002) https://doi.org/10.1117/12.467135
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

Polyphase decomposition is a down sampling operation that produces a set of low-resolution representations of an image. Such representations themselves are different by a phase in frequency domain, hence called polyphase components. An inter-component processing operation extracts meaningful features by performing simple logical operations over selected components. This strategy is applied to angiographic analysis to develop a fast feature-oriented vessel identification technique, which consists of polyphase decomposition on a binary image, followed by inter-component processing. The inter-component processing among selected components produces a feature map in which a non-zero pixel indicates an occurrence of a vessel geometrical feature or pattern in the original image. Using feature templates, a sequence of vessel-featured maps is generated. Fast vessel identification is performed by fusing the feature maps and displaying them according to the emergence orders of vessel geometric features, such as position, diameter, length and direction. Collective display provides a method to visualize vessel features across multiple resolutions. High-speed performance is attributed to low-resolution representation of polyphase components and simple data manipulation of inter-component processing. The tradeoff of such vessel identification technique is associated with an uncertainty for accurate measurement, arising from the inherent translations in polyphase decomposition. Therefore, accurate vessel measurements will need refinement in the original image.

Citation Download Citation

Zikuan Chen and Sabee Y. Molloi "Fast vessel identification using polyphase decomposition and intercomponent processing", Proc. SPIE 4684, Medical Imaging 2002: Image Processing, (9 May 2002); https://doi.org/10.1117/12.467135

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KEYWORDS

Image processing

Image fusion

Angiography

Binary data

Digital imaging

Image segmentation

Feature extraction

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