![](images/graphics/blank.gif)
3D Measurement System
-
In this paper, the authors present a method to solve these problems. Wherein, the motion of targets is represented in the mixed coordinate system 3D base on combining PHD (Probability Hypothesis Density) and JPDA (Joint Probability Data Association). This method can track multiple targets in the most general case, that is to change the target number, system model and measurement model which is non-linear as the noise is non-Gaussian.
9p
viambani
18-06-2024
3
1
Download
-
Inadequate reduction of syndesmotic injuries can result in disabling clinical outcomes. The aim of the study was to compare syndesmosis congruity after fixation by syndesmotic screws (SYS) or a suture button system (SBS) using three-dimensional (3D) computed imaging techniques.
8p
vimackenziebezos
30-11-2021
10
1
Download
-
The measurement methods using structured light have the advantage of being fast, accurate, and noncontact with the surface of the object. However, these methods have reached its limitation when measuring mechanical details with high surface gloss, due to the unpredictable reflection of incident rays after reaching to object’s surface that, consequently, leads to the simultaneous appearance of several regions with different brightness.
9p
vivelvet2711
06-09-2021
22
1
Download
-
Total shoulder arthroplasty (TSA) can improve function in osteoarthritic shoulders, but the ability to perform activities of daily living (ADLs) can still remain impaired. Routinely, shoulder surgeons measure range of motion (ROM) using a goniometer.
8p
viannito2711
20-04-2021
8
1
Download
-
The evaluation of postoperative total knee arthroplasty (TKA) alignment mainly relies on measurement data obtained from plain radiographs. The aim of this retrospective observational study was to document the intra- and inter-observer reliability in assessment of TKA component positioning after surgery using a three-dimensional (3D) computed tomography (CT) image matching system.
10p
vianttinic2711
20-04-2021
9
1
Download
-
Clinical examinations are subjective and often show a low validity and reliability. Objective and highly reliable quantitative assessments are available in laboratory settings using 3D motion analysis, but these systems are too expensive to use for simple clinical examinations.
13p
vitennessee2711
02-02-2021
7
2
Download
-
Extramedullary systems are commonly used in knee arthroplasty, with the rod location being determined from the tibial torsion line during surgery. The traditional method for tibial torsion measurement is not in accordance with clinical practice.
8p
vivermont2711
28-01-2021
9
2
Download
-
Cancer immunotherapy has demonstrated significant clinical activity in different cancers. T cells represent a crucial component of the adaptive immune system and are thought to mediate anti-tumoral immunity. Antigenspecific recognition by T cells is via the T cell receptor (TCR) which is unique for each T cell.
14p
vioklahoma2711
19-11-2020
12
0
Download
-
The measuring system is still limited when measuring surfaces with high reflectivity by the optical signal cannot be obtained correctly. This paper proposes a new approach to solve the problem of measuring mechanical surface with high implementation.
6p
viminotaur2711
29-10-2019
24
1
Download
-
In this paper, the effect of checker size and checkerboard angle on the accurate calibration for a structured light system is presented. Relations between calibration error and checker size, fitting plane error and checkerboard angle are also studied.
6p
visasuke2711
25-04-2019
10
0
Download
-
The paper proposes the selection of optimum parameters for the measurement system. Experimental results determine the optimum conditions for the system at the measuring range (w x h = 400 mm x 300 mm) to obtain the best z-resolution of 0.67 mm.
6p
trangcham1896
10-12-2018
31
0
Download
-
Magnetic motion capture systems require the real actor to wear a set of sensors, which are capable of measuring their spatial relationship to a centrally located magnetic transmitter. The position and orientation of each sensor is then used to drive an animated character. One problem is the need for synchronizing receivers. The data stream from the receivers to a host computer consists of 3D positions and orientations for each receiver.
49p
hoangphiyeah1tv
24-04-2013
41
4
Download
-
In real life, we can tell where objects are by measuring distance between them. As for placing them, moving them, and keeping track of where they are nature has developed a pretty good system. On the computer though, we have to somehow keep track of objects in a 3D scene. Mathematicians have developed the coordinate system. You have probably learned in geometry about the X and the Y axis. Well, these two axis define a coordinate plane, that is, a two dimentional world. However, to work in three dimentions, we need one more axis, the Z axis....
0p
hoangphiyeah1tv
24-04-2013
46
2
Download
-
This emphasis on the spectacular and exotic, consistent with an oppositional or marginal view of the consumer, is often also emphasised in academic writing on counterfeiting. Consumers of counterfeits are often represented through anecdotal narratives which serve as a proxy for deeper understanding of consumer motivations. For example, Lasica (2005) illustrates his work with case studies which potentially confuse everyday users with vanguard consumers.
10p
nhacchovina
22-03-2013
66
4
Download
-
Throughout recorded history, humanity has honoured gods of war, such as Ares from Greek mythology. He was the son of Zeus and Hera, the king and queen of the Greek gods. Ares was the father of many children, most of who were war-like or were associated with war. In Roman mythology, Mars was the god of war. Before entering into battle, Roman troops offered sacrifices to him, and, when victorious in battle, Romans honoured Mars with a share of their swag. The word martial, meaning war-like or military, originates from the Roman god’s name....
101p
tay_thi_le
19-02-2013
46
5
Download
-
Maryland. Repace (2005) measured outdoor fine particle and carcinogen concentrations from OTS on the campus of the University of Maryland at Baltimore. Using controlled experiments, Repace (2005) found that cigarette smoke RSP concentrations decline approximately inversely with distance downwind from the point source, whereas cigarette smoke carcinogen concentrations decline approximately inversely as the square of the distance from source to receptor.
7p
doipassword
01-02-2013
50
3
Download
-
Optoelectronic devices impact many areas of society, from simple household appliances and multimedia systems to communications, computing, spatial scanning, optical monitoring, 3D measurements and medical instruments. This is the most complete book about optoelectromechanic systems and semiconductor optoelectronic devices; it provides an accessible, well-organized overview of optoelectronic devices and properties that emphasizes basic principles.
0p
cucdai_1
20-10-2012
78
9
Download
-
The observational and measurement system in the micro environments to manipulate objects in the micro world is becoming necessary in many fields, such as manufacturing; “Micro Factory (Fig.1)”;one of the past Japanese national project, and medical usages; the micro surgery. Most of the past researches in the micro environments might be only focused on the micro manipulation but not on the micro observation and measurement, which might be very important to operate. Actually, the micro operation includes the scale factors; i.e.
440p
beobobeo
01-08-2012
65
8
Download
-
Stereopsis is a vision process whose geometrical foundation has been known for a long time, ever since the experiments by Wheatstone, in the 19th century. Nevertheless, its inner workings in biological organisms, as well as its emulation by computer systems, have proven elusive, and stereo vision remains a very active and challenging area of research nowadays. In this volume we have attempted to present a limited but relevant sample of the work being carried out in stereo vision by researchers from around the world.
128p
lulanphuong
17-03-2012
99
16
Download
-
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Real-Time Propagation Measurement System and Scattering Object Identification by 3D Visualization by Using VRML for ETC System
11p
sting08
20-02-2012
46
5
Download