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Computer Vision and Image Understanding
Object Matching Using Deformable Templates
IEEE Transactions on Pattern Analysis and Machine Intelligence
Object Tracking Using Deformable Templates
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Genetic Snakes for Color Images Segmentation
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Articulated Body Motion Capture by Stochastic Search
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Soft Computing - A Fusion of Foundations, Methodologies and Applications
A review of particle swarm optimization. Part I: background and development
Natural Computing: an international journal
Real-time 3-D human body tracking using learnt models of behaviour
Computer Vision and Image Understanding
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Journal of Artificial Evolution and Applications - Regular issue
A Factored Approach to Subdivision Surfaces
IEEE Computer Graphics and Applications
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Evolutionary Computation
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Expert Systems with Applications: An International Journal
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Recent advances in differential evolution: a survey and experimental analysis
Artificial Intelligence Review
Scale factor inheritance mechanism in distributed differential evolution
Soft Computing - A Fusion of Foundations, Methodologies and Applications
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Image and Vision Computing
GPU-accelerated tracking of the motion of 3D articulated figure
ICCVG'10 Proceedings of the 2010 international conference on Computer vision and graphics: Part I
Markerless articulated human body tracking from multi-view video with GPU-PSO
ICES'10 Proceedings of the 9th international conference on Evolvable systems: from biology to hardware
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ICANNGA'11 Proceedings of the 10th international conference on Adaptive and natural computing algorithms - Volume Part I
GPU-based asynchronous particle swarm optimization
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Automatic hippocampus localization in histological images using PSO-based deformable models
Proceedings of the 13th annual conference companion on Genetic and evolutionary computation
Evaluation of parallel particle swarm optimization algorithms within the CUDATM architecture
Information Sciences: an International Journal
No free lunch theorems for optimization
IEEE Transactions on Evolutionary Computation
Differential Evolution: A Survey of the State-of-the-Art
IEEE Transactions on Evolutionary Computation
Proceedings of the 14th annual conference companion on Genetic and evolutionary computation
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Automatically detecting objects in images or video sequences is one of the most relevant and frequently tackled tasks in computer vision and pattern recognition. The starting point for this work is a very general model-based approach to object detection. The problem is turned into a global continuous optimization one: given a parametric model of the object to be detected within an image, a function is maximized, which represents the similarity between the model and a region of the image under investigation. In particular, in this work, the optimization problem is tackled using Particle Swarm Optimization (PSO) and Differential Evolution (DE). We compare the performances of these optimization techniques on two real-world paradigmatic problems, onto which many other real-world object detection problems can be mapped: hippocampus localization in histological images and human body pose estimation in video sequences. In the former, a 2D deformable model of a section of the hippocampus is fit to the corresponding region of a histological image, to accurately localize such a structure and analyze gene expression in specific sub-regions. In the latter, an articulated 3D model of a human body is matched against a set of images of a human performing some action, taken from different perspectives, to estimate the subject's posture in space. Given the significant computational burden imposed by this approach, we implemented PSO and DE as parallel algorithms within the nVIDIA(TM) CUDA computing architecture.