International Journal of Science , Engineering and Management (IJSEM)

Monthly Journal for Science , Engineering and Management

Volume1,December 2016,

Topic : Pixel N-grams: Size, Location and Resolution Invariance for Shape Classification

Authors:Pradnya Kulkarni || Andrew Stranieri,Julien Ugon

Abstract:X-ray screening for breast cancer is an important public health initiative in the management of a leading cause of death for women. However, screening is expensive if mammograms are required to be manually assessed by radiologists. Moreover it is subjected to perception and interpretation errors. Automated mammogram classification is promising however relies on the identification of image features that enhance classification accuracies. Features that represent the shape of a tumour have been found to be useful for breast cancer detection using mammographic images. Existing shape feature computation methods are computationally expensive and strongly dependent upon algorithms that can segment an image to localize a region of interest likely to contain the tumour. In this paper, we apply a novel feature extraction technique called Pixel N-grams inspired from character N-gram model in text categorization for classification of shape images. Experiments on a dataset constructed for the purpose, demonstrate that the Pixel N-gram features achieve promising shape classification results irrespective of the size and location of the shape in an image without segmentation. These features also achieve excellent classification accuracy for images of varying resolution. Further, Pixel N-gram features are computationally less complex to generate paving the way for mammogram classification on low resource computers..

Keywords: Mammograms, Pixel, N-grams, Shape.

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DOI: 01.1617/vol1iss2pid0010060


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Editor-in-Chief

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Dr.Muhammad Ishtiaq,
Mirpur University of
Science & Technology,
Mirpur, Azad Kasmir.

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IMPACT FACTOR: 2.7

ISSN(Online): 2456-1304

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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ACCEPTANCE RATIO: 25%
ARTICLES PUBLISHED:00007
PAPER RECEIVED:000028
Journal Code : IJSEM
Electronic ISSN : 2456-1304
Impact Factor : 2.7
Frequency : Monthly
Contact : editor@ijsem.org

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