scholarly journals Three-dimensional quantitative evaluation method of nonrigid registration algorithms for adaptive radiotherapy

2010 ◽  
Vol 37 (3) ◽  
pp. 1137-1145 ◽  
Author(s):  
B. Rodriguez-Vila ◽  
F. Gaya ◽  
F. Garcia-Vicente ◽  
E. J. Gomez
Keyword(s):  
Quantitative Evaluation ◽  
Evaluation Method ◽  
Three Dimensional ◽  
Adaptive Radiotherapy ◽  
Nonrigid Registration

scholarly journals Quantitative Evaluation of Shoulder Joint Function to Reproduce Results of Clinical Tests by Therapist

2013 ◽  
Vol 25 (6) ◽  
pp. 983-991 ◽  
Author(s):  
Noritaka Sato ◽  
◽  
Keita Kamada ◽  
Yuki Hiramatsu ◽  
Kazunori Yamazaki ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Shoulder Joint ◽  
Evaluation System ◽  
Evaluation Method ◽  
Glenohumeral Joint ◽  
External Rotation ◽  
Three Dimensional ◽  
Evaluation Methods ◽  
Initial Position ◽  
Joint Function

The final aim of this research is to develop a quantitative evaluation system of shoulder joint function using a three-dimensional force display robot. In this paper, we proposed quantitative evaluation methods by which the results equivalent to the results of tests by a therapist can be obtained. The quantitative evaluation methods can be installed in the robot. We focus on two shoulder joint functions. One is stability and the other is cooperativeness. Two experiments were carried out to develop quantitative evaluation methods of shoulder joint function. In the experiments, subject’s forces were measured during the tests by the therapist. On the basis of the experimental results, we proposed a stability evaluation method using a regression equation of glenohumeral joint instability from the ratios between the right and the left subject’s force in the initial position during abduction, external rotation and horizontal abduction motion. Moreover, we proposed a cooperativeness evaluation method by detecting two thresholds related to sustainability of subject’s force.

Quantitative evaluation method of power supply reliability considering voltage sag

2021 ◽  
Vol 675 (1) ◽  
pp. 012121
Author(s):  
Pei Du ◽  
Yan Lin ◽  
Weijun Zhang ◽  
Zhixuan Liu ◽  
Fang Lin ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Power Supply ◽  
Evaluation Method ◽  
Voltage Sag ◽  
Supply Reliability

scholarly journals In-Process Measurement of Three-Dimensional Deformations Based on Speckle Photography

2021 ◽  
Vol 11 (11) ◽  
pp. 4981
Author(s):  
Andreas Tausendfreund ◽  
Dirk Stöbener ◽  
Andreas Fischer
Keyword(s):  
Evaluation Method ◽  
Process Analysis ◽  
Plane Deformation ◽  
Three Dimensional ◽  
Machining Process ◽  
Image Correlation ◽  
Speckle Photography ◽  
Process Measurement ◽  
Out Of Plane ◽  
Plane Deformations

In the concept of the process signature, the relationship between a material load and the modification remaining in the workpiece is used to better understand and optimize manufacturing processes. The basic prerequisite for this is to be able to measure the loads occurring during the machining process in the form of mechanical deformations. Speckle photography is suitable for this in-process measurement task and is already used in a variety of ways for in-plane deformation measurements. The shortcoming of this fast and robust measurement technique based on image correlation techniques is that out-of-plane deformations in the direction of the measurement system cannot be detected and increases the measurement error of in-plane deformations. In this paper, we investigate a method that infers local out-of-plane motions of the workpiece surface from the decorrelation of speckle patterns and is thus able to reconstruct three-dimensional deformation fields. The implementation of the evaluation method enables a fast reconstruction of 3D deformation fields, so that the in-process capability remains given. First measurements in a deep rolling process show that dynamic deformations underneath the die can be captured and demonstrate the suitability of the speckle method for manufacturing process analysis.

Sign in / Sign up

Export Citation Format

Share Document