搜索结果: 1-14 共查到“医学 calibration”相关记录14条 . 查询时间(0.098 秒)
Calibration and validation of an air-displacement plethysmography method for estimating percentage body fat in an elderly population: a comparison among compartmental models
Body composition elderly men
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2016/6/14
The use of hydrostatic weighing (HW) to measure
body composition in the elderly can be difficult and is based on
the assumption of constancy of body compartments.
INKJET DEPOSITION SYSTEM WITH COMPUTER VISION-BASED CALIBRATION FOR TARGETING ACCURACY
custom inkjet system Robotics Institute TARGETING ACCURACY
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2009/12/23
This report describes a custom inkjet system, which was developed at the Robotics Institute, for accurately depositing various material inks onto or relative to specified target locations on substrate...
Inkjet Deposition System With Computer Vision-Based Calibration for Targeting Accuracy
Vision-Based Calibration Targeting Accuracy
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2009/12/22
This report describes a custom inkjet system, which was developed at the Robotics Institute, for accurately depositing various material inks onto or relative to specified target locations on substrate...
Calibration Method for Determining the Physical Location of the Ultrasound Image Plane
Calibration Method Determining the Ultrasound Image Plane
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2009/12/22
This paper describes a calibration method for determining the physical location of the ultrasound (US) image plane relative to a rigidly attached 3D position sensor. A calibrated US probe can measure ...
An easy calibration for oblique-viewing endoscopes
calibration oblique-viewing endoscopes
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2009/12/22
Oblique-viewing endoscopes (oblique scopes) are widely used in minimally invasive surgery. The viewing direction of an oblique endoscope can be changed by rotating the scope cylinder, which enables a ...
Joint Brain Parametric T1-Map Segmentation and RF Inhomogeneity Calibration
Brain Parametric T1-Map Segmentation RF Inhomogeneity Calibration
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2009/9/4
We propose a constrained version of Mumford and Shah's (1989) segmentation model with an information-theoretic point of view in order to devise a systematic procedure to segment brain magnetic resonan...
Calibration and characterization of heat flow transducers for use in hyperbaric helium
flow transducers hyperbaric helium calibration constants
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2009/7/16
A calibration technique for heat flow transducers (HFT) verified to within 5percent by the National Bureau of Standards was used to show significant errors in calibration constants supplied by the man...
Calibration of a bubble evolution model to observed bubble incidence in divers
helium heliox nitrogen model air chamber
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2009/6/12
The method of maximum likelihood was used to calibrate a probabilistic bubble evolution model against data of bubbles detected in divers. These data were obtained from a diverse set of 2,064 chamber m...
Basic Study of Magnetic Interference Problems in the Direct Calibration of an Endoscopic Camera
image overlay camera calibration endoscopic surgery permanent magnet magnetic interference problem
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2009/6/9
The purpose of our study was to realize a real-time endoscopic image overlay system for intra-operative localization of a tumor in deformative organs. Thus, we have proposed a method for endoscopic im...
Robust Visual Tracking Method Based on the Optical Property of an Endoscopic Camera∼Performance evaluation and application to direct calibration of endoscopic cameras∼
Robust visual tracking Camera calibration Endoscopic surgery Infrared reflectance marker Image processing
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2009/6/5
Endoscopic surgery is minimally invasive and presents many advantages for the patient such as reduced pain, less scarring, and quicker recovery. However, endoscopic cameras offer a narrow field of vi...
Multivariate Calibration Models for Non-invasive Prediction of Blood Glucose Level Using an Instantaneous Differential Near-infrared Spectrophotometry
pulse glucometry non-invasive blood glucose measurement multivariate analysis support vector machines nonlinear problem
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2009/6/1
An optical method recently proposed for non-invasive in vivo blood glucose concentration (BGL) measurement, named “Pulse Glucometry”, was combined and compared with four multivariate analyses for cons...
Effective x-ray attenuation coefficient measurements from two full field digital mammography systems for data calibration applications
x-ray attenuation coefficient measurements two full field digital mammography systems data calibration applications
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2010/2/25
Logarithmic response curves are well approximated as linear. Measured effective x-ray attenuation coefficients are characteristic quantities independent of the imaging system and are in agreement with...
Calibration of an orientation sensor for freehand 3D ultrasound and its use in a hybrid acquisition system
an orientation sensor freehand 3D ultrasound a hybrid acquisition system
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2010/2/25
Gold standard freehand 3D ultrasound acquisition requires the synthesis of image-based techniques, for good fine scale detail, and position sensors, for good large scale geometrical accuracy. A hybrid...
In vitro calibration of a system for measurement of in vivo convective heat transfer coefficient in animals
in vivo convective heat transfer coefficient animals
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2010/2/26
We built a minimally invasive instrument to measure the in vivo convective heat transfer coefficient, h in animals, using a Wheatstone-bridge circuit, similar to a hot-wire anemometer circuit. One arm...