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JSIR Vol.71 [2012] >
JSIR Vol.71(07) [July 2012] >
| Title: | Efficient skeletal bone age estimation method using carpal and radius bone features |
| Authors: | Thangam, P
Thanushkodi, K
Mahendiran, T V |
| Keywords: | Bone age assessment (BAA)
Carpal region of interest (CROI)
Morphological feature extraction
Radiograph
Radius region of interest (RROI) |
| Issue Date: | Jul-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This study presents design and implementation of an
efficient skeletal bone age assessment (BAA) procedure based on features
extracted from two dominant wrist bone structures (radius & carpal bones).
System works according to renowned Tanner & Whitehouse (TW2) method, based
on carpal and epiphyseal region of interest (ROI). It ensures accurate and
robust BAA for both girls and boys (age range, 0-10 y). BAA procedure composes
of two components, one dealing with carpal bones [Carpal ROI (CROI) sector] and
the other with radius bone segments [Radius ROI (RROI) sector]. Input image is
initially cropped to extract desired ROI. Anisotropic diffusion filter is
employed to reduce noise before extracting features. This is followed by
morphological
feature extraction, during which two feature ratios (1
from CROI features and 1 from RROI features) are computed. Feature ratios are
used to initially train the system and finally to estimate skeletal bone age.
The system was trained with a data set of 120 radiographs (60 males & 60
females) and was tested on a set of 100 radiographs (50 males & 50
females). |
| Page(s): | 474-479 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.71(07) [July 2012]
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