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RISS 인기검색어
- 검색키워드
- 저자 : Partha Bhattacharjee (검색결과 2 건)
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Automated Glaucoma Screening in Retinal Fundus Images
Srinivasan Aruchamy,Partha Bhattacharjee,Goutam Sanyal 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.9
Glaucoma is an eye disease which damages the optic nerve that carries information from the eye to the brain. Glaucoma is the second foremost reason of blindness. An efficient hardware based implementation of glaucoma screening is a significant task in the automated retinal image analysis method. This paper presents an automatic glaucoma screening using a TMS320C6416DSK DSP board. The detection procedure consists of two stages. The first stage comprises of image pre-processing and detection of optic nerve head center using circular Hough Transform .In the second stage, the optic disk diameter is calculated and cup is segmented from disk. The proposition between disk and cup is calculated for abnormal image screening. The implemented technique is tested on a publicly available retinal image data sets and the average accuracy achieved is 97.5%.
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Insertion - Deletion as Informative Characters in DNA Barcoding
Goutam Sanyal,Asim Kumar Mahadani,Pradosh Mahadani,Partha Bhattacharjee 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.10
DNA barcoding involve rapidly sequencing the standardized region from the genome for species identification and this homologous sequence information plays an important role to resolve the phylogenetic issues. However in case of complex groups, incorporation of insertion and deletion (Indel) informative sites in DNA barcode sequences are becoming more important due to low substitution rate. Indels are largely ignored in phylogenetics analysis and removed from sequence alignment assigning them a missing data. We review the current trends on mining the indels analysis, focusing especially on the topics of rapidly evolving indel containing loci and methods of indel treatment for phylogenetic relationship. Among the indel coding methods, Simple indel coding is easy to implement in indels contain sequences. But, this method does not utilized the all the available information and Complex Indel Coding rules are very difficult to translate into a clearly formulate algorithm for determining the values. But this coding method suffers from internal inconsistence when a long indel has a number of shorter subset indel and triangular in equality exists. However, SIDIER software package infer evolutionary relationships based on both the indels and substitutions. SIDIER is promising software for intra and inter specific calculation in DNA barcode studies as well as to infer phylogenetic relationships.
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