We described a method for automatically identifying and separating pixels representing bone from those representing soft tissue in a dual- energy point-scanned projection radiograph of the abdomen. In order to achieve stable quantitative measurement of projected bone mineral density, a calibration using sample bone in regions containing only soft tissue must be performed. In addition, the projected area of bone must be measured. We show that, using an image with a realistically low noise, the histogram of pixel values exhibits a well-defined peak corresponding to the soft tissue region. A threshold at a fixed multiple of the calibration segment value readily separates bone from soft tissue in a wide variety of patient studies. Our technique...
Four procedures--single photon absorptiometry, dual photon absorptiometry, dual energy radiography, ...
OBJECTIVES: To develop a digital densitometric tool for jaw bone to analyse intraoral radiographs. T...
Interactive image analysis is a novel application of digital image processing to the densitometry of...
We described a method for automatically identifying and separating pixels representing bone from tho...
Background Bone mineral density (BMD) could be derived from CT localizer radiographs and could poten...
Conventional radiographic methods allow physicians to visualize bone structure. However, they do not...
This thesis reports several methods for automated analysis and interpretation of bone X-ray images. ...
OBJECTIVE Dual energy radiography (DER) makes it possible to obtain separate images for soft‐tissue...
An energy dispersive x-ray diffractometer was designed and built to measure bone mineral density in ...
Bone mineral density (BMD) is a key feature in diagnosing bone diseases. Although computational tomo...
The application of dual-energy principles allows accurate measurement of bone density using conventi...
OBJECTIVES: To investigate the accuracy of bone mineral density (BMD) quantification using dual-laye...
We propose a method for estimating the bone mineral density (BMD) from a plain x-ray image. Dual-ene...
We describe a novel method of estimating reduced bone mineral density (BMD) from dental panoramic t...
In computed tomography (CT), the representation of edges between objects of different densities is i...
Four procedures--single photon absorptiometry, dual photon absorptiometry, dual energy radiography, ...
OBJECTIVES: To develop a digital densitometric tool for jaw bone to analyse intraoral radiographs. T...
Interactive image analysis is a novel application of digital image processing to the densitometry of...
We described a method for automatically identifying and separating pixels representing bone from tho...
Background Bone mineral density (BMD) could be derived from CT localizer radiographs and could poten...
Conventional radiographic methods allow physicians to visualize bone structure. However, they do not...
This thesis reports several methods for automated analysis and interpretation of bone X-ray images. ...
OBJECTIVE Dual energy radiography (DER) makes it possible to obtain separate images for soft‐tissue...
An energy dispersive x-ray diffractometer was designed and built to measure bone mineral density in ...
Bone mineral density (BMD) is a key feature in diagnosing bone diseases. Although computational tomo...
The application of dual-energy principles allows accurate measurement of bone density using conventi...
OBJECTIVES: To investigate the accuracy of bone mineral density (BMD) quantification using dual-laye...
We propose a method for estimating the bone mineral density (BMD) from a plain x-ray image. Dual-ene...
We describe a novel method of estimating reduced bone mineral density (BMD) from dental panoramic t...
In computed tomography (CT), the representation of edges between objects of different densities is i...
Four procedures--single photon absorptiometry, dual photon absorptiometry, dual energy radiography, ...
OBJECTIVES: To develop a digital densitometric tool for jaw bone to analyse intraoral radiographs. T...
Interactive image analysis is a novel application of digital image processing to the densitometry of...