# Press Release on Calibration Techniques Research: September-2018

3-D printed kidney phantoms aid nuclear medicine dosing calibration

In medical specialty, the goal is to stay radiation exposure at a minimum, whereas getting quality pictures. optimum dosing for individual patients is troublesome to work out. that is wherever 3-D written organ models of varied size and form can be of nice use. Researchers demonstrate the worth of 3D-printed urinary organ phantoms for quantitative SPECT/CT imaging. [1]

Design and Calibration Experiment of a Novel Rigid-Flexible Hybrid Parallel Three-dimensional Force Sensor with Deformability

To meet the need for a multi-dimensional force sensing element with flexibility within the field of human-robot interaction, a unique parallel three-dimensional force sensing element with the rigid-flexible hybrid element is projected. The sensing element can’t solely possess a high deformability, however conjointly maintain constant transformation between the input and output forces within the whole deformable vary. Firstly, the static mathematical model of the sensing element is established supported vector technique. [2]

Elastic Properties Calibration Approach for Discrete Element Method Model Based on Voronoi Tessellation Method

The purpose of this study is to ascertain an activity approach for connecting the macro elastic properties and small contact properties of the DEM model supported the Voronoi tessellation technique. Analytical solutions were developed to predict macro elastic properties for the DEM model with regular contact sets. supported the mixture of the analytical solutions and numerical calculations, a straightforward activity approach has been established to predict the coefficient of elasticity and Poisson’s magnitude relation of the DEM model with Voronoi tessellation. [3]

A Robust Extrinsic Calibration Method for Non-contact Gaze Tracking in the 3-D Space

In general, three-dimensional (3-D) gaze following strategies use each a frontal-viewing camera associated with an eye-capturing camera facing the alternative direction to exactly estimate the point-of-regard (POR) within the 3-D area. The extraneous standardization of those 2 cameras for correct 3-D gaze following may be a difficult task. This paper presents a sturdy extraneous standardization methodology for non-contact gaze following within the 3-D area. Even in an exceedingly clattery setting, the extraneous standardization parameters area unit exactly calculable by minimizing the projected value operate consisting of each the angular and also the geometer errors [4]

Calibration of Inductive Electromagnetic Meter for Determining Electrical Conductivity of UAS, Raichur Soil

EM-38 magnetic attraction induction device may be a most helpful instrument to work out the soil salinity. the vital correlation found between inductive magnetic attraction meter (IEM) readings and saturated paste extract electrical conduction (EC) discovered that this system may well be used for determination of soil salinity. However, standardization of the instrument is important for the interpretation of instrument readings in terms of purposeful parameters of soil salinity. The standardization equations developed elsewhere might not predict electrical conduction of UAS, Raichur soil accurately. So, during this study, standardization of EM-38 was dispensed to seek out the soil salinity of experimental website soil. [5]

Reference

[1] 3-D printed kidney phantoms aid nuclear medicine dosing calibration

Date: December 6, 2016, Source: Society of Nuclear Medicine (web link)

[2] Design and Calibration Experiment of a Novel Rigid-Flexible Hybrid Parallel Three-dimensional Force Sensor with Deformability

Zhao Y, Yang W, Shan Y, Bian H, Liu M. Design and Calibration Experiment of a Novel Rigid-Flexible Hybrid Parallel Three-dimensional Force Sensor with Deformability. IEEE Sensors Journal. 2018 Aug 21. (web link)

[3] Elastic Properties Calibration Approach for Discrete Element Method Model Based on Voronoi Tessellation Method

Tan X, Zhao M, Zhu Z, Jin Y. Elastic Properties Calibration Approach for Discrete Element Method Model Based on Voronoi Tessellation Method. Geotechnical and Geological Engineering.:1-0. (web link)

[4] A Robust Extrinsic Calibration Method for Non-contact Gaze Tracking in the 3-D Space

Kang MC, Yoo CH, Uhm KH, Lee DH, Ko SJ. A Robust Extrinsic Calibration Method for Non-contact Gaze Tracking in the 3-D Space. IEEE Access. 2018 Aug 27. (web link)

[5] Calibration of Inductive Electromagnetic Meter for Determining Electrical Conductivity of UAS, Raichur Soil

Naseeb Singh1*, Premanand B. Dashavant2, K. Sudarshan2 and Laxmi Kant Dhruw1

1Department of AgFE, Indian Institute of Technology (IIT) Kharagpur, West Bengal, 721 302, India.

2Department of SWC, CAE, University of Agricultural Sciences (UAS), Raichur, Karnataka, 585 401, India. (web link)