Feature-Based GDLOH Deformable Registration for CT Lung Image

Abstract:

To improve the efficiency and accuracy of the conventional SIFT-TPS (Scale-invariant feature transform and Thin-Plate Spline) method in deformable registration for CT lung image, we develop a novel approach by using combining SURF(Speeded up Robust Features) and GDLOH(Gradient distance-location-orientation histogram) to detect matching feature points. First, we employ SURF as feature detection to find the stable feature points of the two CT images rapidly. Then GDLOH is taken as feature descriptor to describe each detected points characteristic, in order to supply measurement tool for matching process. In our experiment, five couples of clinical images are simulated using our algorithm above, result in an obvious improvement in run-time and registration quality, compared with the conventional methods. It is demonstrated that the proposed method may create a new window in performing a good robust and adaptively for deformable registration for CT lung tomography.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 969-973
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.969
• Online since: July 2013
• Authors: Yu Han Yang*, Yao Qin Xie
• Keywords: CT Lung Image, Deformable Registration, SURF, TPS

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