Paper
10 March 2006 Automatic 3D image registration using voxel similarity measurements based on a genetic algorithm
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Abstract
An automatic 3D non-rigid body registration system based upon the genetic algorithm (GA) process is presented. The system has been successfully applied to 2D and 3D situations using both rigid-body and affine transformations. Conventional optimization techniques and gradient search strategies generally require a good initial start location. The GA approach avoids the local minima/maxima traps of conventional optimization techniques. Based on the principles of Darwinian natural selection (survival of the fittest), the genetic algorithm has two basic steps: 1. Randomly generate an initial population. 2. Repeated application of the natural selection operation until a termination measure is satisfied. The natural selection process selects individuals based on their fitness to participate in the genetic operations; and it creates new individuals by inheritance from both parents, genetic recombination (crossover) and mutation. Once the termination criteria are satisfied, the optimum is selected from the population. The algorithm was applied on 2D and 3D magnetic resonance images (MRI). It does not require any preprocessing such as threshold, smoothing, segmentation, or definition of base points or edges. To evaluate the performance of the GA registration, the results were compared with results of the Automatic Image Registration technique (AIR) and manual registration which was used as the gold standard. Results showed that our GA implementation was a robust algorithm and gives very close results to the gold standard. A pre-cropping strategy was also discussed as an efficient preprocessing step to enhance the registration accuracy.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wei Huang, John M. Sullivan Jr., Praveen Kulkarni, and Murali Murugavel "Automatic 3D image registration using voxel similarity measurements based on a genetic algorithm", Proc. SPIE 6144, Medical Imaging 2006: Image Processing, 614430 (10 March 2006); https://doi.org/10.1117/12.653979
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Cited by 3 scholarly publications.
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KEYWORDS
Image registration

Genetic algorithms

Image segmentation

3D image processing

Magnetic resonance imaging

Genetics

Medical imaging

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