A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
On the Localization Performance Measure and Optimal Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
Self-organizing maps
Generalized relevance learning vector quantization
Neural Networks - New developments in self-organizing maps
Pattern Classification (2nd Edition)
Pattern Classification (2nd Edition)
Statistical approach to boar semen head classification based on intracellular intensity distribution
CAIP'05 Proceedings of the 11th international conference on Computer Analysis of Images and Patterns
Classification of boar spermatozoid head images using a model intracellular density distribution
CIARP'05 Proceedings of the 10th Iberoamerican Congress conference on Progress in Pattern Recognition, Image Analysis and Applications
IWCIA'11 Proceedings of the 14th international conference on Combinatorial image analysis
IbPRIA'11 Proceedings of the 5th Iberian conference on Pattern recognition and image analysis
Texture and moments-based classification of the acrosome integrity of boar spermatozoa images
Computer Methods and Programs in Biomedicine
Assessment of acrosome state in boar spermatozoa heads using n-contours descriptor and RLVQ
Computer Methods and Programs in Biomedicine
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We consider images of boar spermatozoa obtained with an optical phase-contrast microscope. Our goal is to automatically classify single sperm cells as acrosome-intact (class 1) or acrosome-damaged (class 2). Such classification is important for the estimation of the fertilization potential of a sperm sample for artificial insemination. We segment the sperm heads and compute a feature vector for each head. As a feature vector we use the gradient magnitude along the contour of the sperm head. We apply learning vector quantization (LVQ) to the feature vectors obtained for 320 heads that were labelled as intact or damaged using stains. A LVQ system with four prototypes (two for each class) allows us to classify cells with an overall test error of 6.8%. This is considered to be sufficient for semen quality control in an artificial insemination center.