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  • Statistics In Transition

 

Article | 30-November-2018

A Survey of Calibration Methods for Traditional Cameras Based on Line Structure Light

measurement technology of line structure light has the advantages of fast measurement speed, high precision and low measurement environment requirements, and is widely welcomed [3]. Camera calibration is the main factor that restricts the accuracy of 3D measurement, which has attracted wide attention from scholars and improved step by step. II. CAMERA CALIBRATION CONTENT Wherever Times is specified, Times Roman or Times New Rom The camera calibration method is different according to the way of solving

Ruixia Wu, Baolong Liu, Huimin Yao

International Journal of Advanced Network, Monitoring and Controls, Volume 4 , ISSUE 1, 66–71

Article | 30-November-2018

Rotation center calibration based on line laser rotating platform

calibration can improve the accuracy of point cloud reconstruction and improve the 3D contour reconstruction of the measured object. The reconstruction of the rotating platform can be divided into three types according to the different movement modes: the first is that the camera rotates around the rotating axis [3], and the measured object does not move; the second is that the camera does not move, and the object rotates with the rotating platform [4] The third is that the camera and the object are

Doudou Lei, Baolong Liu, Huimin Yao

International Journal of Advanced Network, Monitoring and Controls, Volume 4 , ISSUE 1, 48–52

Research paper | 30-October-2017

JOINT CALIBRATION ESTIMATOR FOR DUAL FRAME SURVEYS

Many dual frame estimators have been proposed in the statistics literature. Some of these estimators are theoretically optimal but hard to apply in practice, whereas others are applicable but have larger variances than the first group. In this paper, a Joint Calibration Estimator (JCE) is proposed that is simple to apply in practice and meets many desirable properties for dual frame estimators. The JCE is asymptotically design unbiased conditional on the strong relationship between the

Mahmoud A. Elkasabi, Steven G. Heeringa, James M. Lepkowski

Statistics in Transition New Series, Volume 16 , ISSUE 1, 7–36

Article | 06-July-2017

A COMPARISON OF SMALL AREA AND CALIBRATION ESTIMATORS VIA SIMULATION

Domain estimates are typically obtained using calibration estimators that are direct or modified direct. They are direct if they strictly use data within the domain of interest. They are modified direct if they use both data within and outside the domain of interest. An alternative way of producing these estimates is through small area procedures. In this article, we compare the performance of these two approaches via a simulation. The population is generated using a hierarchical model that

Michael A. Hidiroglou, Victor M. Estevao

Statistics in Transition New Series, Volume 17 , ISSUE 1, 133–154

Research Article | 17-September-2018

Calibration Method for the Wavelength and Uniformity of Pixel Response in Photodetector Arrays

to obtain optical measurements with this cameras. However, digital cameras can also be used as optical measuring instruments knowing their features in depth. Therefore, in this paper is proposed a calibration method for monochrome digital camera using a monochromator and an automatic rotation system. In this way, the uniformity of the pixels response is verified, bad pixels are detected, and the sensitivity curve is obtained. The results show the advantages of the method to find regions of pixels

J.-S. Botero-Valencia, J. Valencia-Aguirre, D.A. Marquez-Viloria, J.-F. Vargas-Bonilla, A. Gallardo-del Angel

International Journal on Smart Sensing and Intelligent Systems, Volume 11 , ISSUE 1, 1–8

Research Article | 13-June-2021

Developing calibration estimators for population mean using robust measures of dispersion under stratified random sampling

In this paper, two modified, design-based calibration ratio-type estimators are presented. The suggested estimators were developed under stratified random sampling using information on an auxiliary variable in the form of robust statistical measures, including Gini’s mean difference, Downton’s method and probability weighted moments. The properties (biases and MSEs) of the proposed estimators are studied up to the terms of first order approximation by means of Taylor’s Series

Ahmed Audu, Rajesh Singh, Supriya Khare

Statistics in Transition New Series, Volume 22 , ISSUE 2, 125–142

Sampling Methods | 27-May-2018

JOINT RESPONSE PROPENSITY AND CALIBRATION METHOD

This paper examines the chain of weights, beginning with the basic sampling weights for the respondents. These were then converted to reweights to reduce the bias due to missing quantities. If micro auxiliary variables are available for a gross sample, we suggest taking advantage first of the response propensity weights, and then of the calibrated weights with macro (aggregate) auxiliary variables. We also examined the calibration methodology that starts from the basic weights. Simulated data

Seppo Laaksonen, Auli Hämäläinen

Statistics in Transition New Series, Volume 19 , ISSUE 1, 45–60

Research Article | 13-December-2017

Embedded system design and implementation of standard auto-calibrated measurement chain

This paper presents the design and the implementation of a standard auto-calibration system, to correct measurement chain and ensure its accuracy. The adopted solution consists in designing a reconfigurable instrumentation based on the use of a programmable analog circuit (FPAA), allowing the automation of various test and adjustment operations. The measurement chain transfer curve is periodically corrected using the progressive polynomial calibration method, ensuring systematic correction of

M. NADI, C. MARGO, M. KOUIDER, J. PRADO, D. KOURTICHE

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 1, 21–33

Article | 01-June-2016

A COST-EFFECTIVE AND ACCURATE ELECTRICAL IMPEDANCE MEASUREMENT CIRCUIT DESIGN FOR SENSORS

A circuit design with bespoke control software is described which has delivered precision in electrical impedance measurements of ~ 10ppm, after calibration. It is low-cost and applicable to jobs such as direct measurement using a sensor whose resistance changes with some physical quantity of interest; calibration at end of line in the production of such sensors; or calibration of equipment which may be out of warranty. It was developed using resistance temperature detectors (RTDs).

Ciaran Doyle, Dr Daniel Riordan, Dr Joseph Walsh

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 2, 509–525

Research Article | 13-December-2017

A BROADBAND SPECTROSCOPIC SENSOR PROBE

. Although the probe is capable of a very wide frequency range, separate instruments are generally required, and here we focus on measurements above 1MHz. We demonstrate measurements in the frequency domain using a vector network analyser, and in the time domain using a broadband oscilloscope. For switching, we employed a coaxial switch and demonstrate how that is included within the instrument calibration. Calibration of the probe used three references: an open circuit, short circuit (indium foil) and a

I M Woodhead, I Platt, J H Christie, S Krenek

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 459–469

Article | 01-December-2012

INDUSTRIAL ROBOT CALIBRATION USING A VIRTUAL LINEAR CONSTRAINT

Biqiang Du, Ning Xi, Erick Nieves

International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 4, 987–1001

Research paper | 20-February-2012

THE FAST METHOD FOR CORRECTION OF DISTORTION ON INFRARED MARKER-BASED TRACKING SYSTEM

conditions of calibration. To improve the accuracy and satisfy the real-time requirement of the tracking system, a real-time method to correct the radial distortion is proposed in this paper. The experiments show that the speed of the correction method is satisfactory, and the accuracy of tracking system is effectively improved by the method.

Haibin Wang, Qing He, Guan Guan, Bin Leng, Dewen Zeng

International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 1, 259–277

Research Article | 15-February-2020

Automated Traffic Analysis in Aerial Images

In this work an automated traffic analysis in aerial image sequences recorded by an unmanned aerial vehicle (UAV) has been developed, which provides the trajectories of the vehicles especially during overtaking. Methods of photogrammetry and image processing are used to detect the vehicles and to determine and track their positions. Camera calibration is necessary in order to transform image coordinates into world coordinates.

Tom Hößler, Tom Landgraf

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–5

Article | 01-December-2016

OPTIMIZATION OF MODIFIED ROTAMETER USING HALL PROBE SENSOR WITH RESPECT TO LIQUID DENSITY AND ITS CALIBRATION USING ARTIFICIAL NEURAL NETWORK

. The simulation results show that the calibration technique is efficient.

Sunita Sinha, Nirupama Mandal

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 4, 2204–2218

Research Article | 12-December-2017

A LOW COST THREE-DIRECTIONAL FORCE SENSOR

In this work a low cost sensor has been developed to measure three-directional forces. The theory, design and sensor construction details are presented. It was constructed by using commercial strain gauges. Finite element method was adopted to optimize the structure dimensions, and improve the sensitivity of force sensor by distributing the sensing stress on the maximum strain positions. A hardware conditioning circuits was developed for the 3D force sensor. The calibration experiments were

S. Boukhenous

International Journal on Smart Sensing and Intelligent Systems, Volume 4 , ISSUE 1, 21–34

research-article | 30-November-2019

Non-destructive, non-invasive, in-line real-time phase-based reflectance for quality monitoring of fruit

required compared to computer vision based which are calibration intensive. The phase-based measurements are weakly dependent on the illumination condition of the object as it is ratio based. The NIR spectroscopy and the computer vision-based systems are highly influenced by the ambient illumination of the object. The phase-based measurement are independent of the skin color of the apples. NIR spectroscopy and computer vision-based systems are highly dependent on the skin color, shape, and size of

M. Assaad

International Journal on Smart Sensing and Intelligent Systems, Volume 13 , ISSUE 1, 1–10

research-article | 30-November-2018

Developing a real-time PCR diagnostic method for a potential threat to chrysanthemum, Paratylenchus dianthus

a quick and easy approach to diagnose the pathogen and to predict potential damage of chrysanthemum is in great demand. Furthermore, this study developed (lysate) calibration curves using DNA samples extracted from single nematodes, since developing lysate calibration curves may be a quicker approach than developing soil calibration curves. Though it may be ideal that each real-time PCR protocol contains specific calibration curves developed using DNA samples extracted from soil, developing soil

Masanori Kawanobe, Koki Toyota, Hidehito Uchihara, Mikoto Takae

Journal of Nematology, Volume 51 , 1–11

Article | 31-December-2020

CARGO SECURING – COMPARISON OF THE SELECTED TRUCKS

The paper deals with a comparison of shocks (values of acceleration coefficients and inertial forces) of two types of vehicles (T-810 and T-815 MK IV) during transport experiments on a motorway. The measurement was performed using an OM-CP-ULTRASHOCK-5 three-axial accelerometer with a datalogger and calibration certificate. The goal of the paper is to accept or reject a hypothesis of the existence of a statistically significant difference between the values of the acceleration coefficients

Martin VLKOVSKÝ, Petr VESELÍK

Transport Problems, Volume 15 , ISSUE 4, Part 2, 265–274

Research Article | 15-February-2020

Automated Monitoring of Foraging Behaviour in Free Ranging Sheep Grazing a Bio-diverse Pasture using Audio and Video Information

Non-invasive methods for monitoring foraging choice in free ranging grazing animals are largely limited to accelerometers and video calibration. Acoustic data from a wireless microphone attached to the skull has been used to distinguish between resting and feeding bouts in free ranging cattle, sheep and goats. Similar data has been reported in restrained sheep presented with forage of differing dry matter content.  We take these approaches further by using a small video camera attached to

J. Sneddon, A. Mason

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–4

Article | 27-December-2017

APPLICATION OF BOUNDARY LAYER THEORY IN OPEN CHANNEL FLUME DESIGN

calculated theoretically. With four different kinds of parameters in the U-shaped channel flume algorithm are verified, the results show that the theoretical calculation corresponds to the actual observation. Therefore, the boundary layer theory to calculate the flow of the flume is not only studied the amount of water problems in theory, simplifies the complicated test calibration, but also has important practical value.

Wu Wei

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 1, 67–88

Article | 01-March-2012

FEEDFORWARD CONTROL OF TEMPERATURE-INDUCED HEAD SKEW FOR HARD DISK DRIVES

Yong Xiao, Chi Zhang, Xiaoyu Ge, Peiqi Pan

International Journal on Smart Sensing and Intelligent Systems, Volume 5 , ISSUE 1, 95–106

Article | 15-September-2020

An evaluation of design-based properties of different composite estimators

Daniel Bonnéry, Yang Cheng, Partha Lahiri

Statistics in Transition New Series, Volume 21 , ISSUE 4, 166–190

research-article | 30-November-2020

Improving sand flow rate measurement using the wavelet transform and ultrasonic sensors

devices. Therefore, finding a method with simpler calibration procedure is needed by the industry. This is another aspect which is addressed by this paper. Finally, one difficulty with commonly used sand detectors is the requirement for having fluid velocity as a pre-requisite for sand flow rate estimation. For instance, in several applications such as subsea wellheads, there is no flow meter by which the fluid velocity can be measured. Therefore, having a method for sand flow rate measurement in

H. Seraj*, B. Evans, M. Sarmadivaleh

International Journal on Smart Sensing and Intelligent Systems, Volume 14 , ISSUE 1, 1–13

Research Article | 27-December-2017

ERROR MODELING AND COMPENSATION OF 3D SCANNING ROBOT SYSTEM BASED ON PSO-RBFNN

In order to improve the measurement accuracy of three-dimensional (3D) scanning robot, a method of 3D scanning robot system error modeling and compensation based on particle swarm optimization radial basis function neural network (PSO-RBFNN) is proposed to achieve intelligent compensation of measurement error. The structure, calibration and error modeling process of 3D scanning robot system are mainly described. Cleverly using the iterative closest point (ICP) algorithm to construct

Jianhong Qi, Jinda Cai

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 2, 837–855

Article | 08-April-2018

3D Modeling of the Relievo Based on the Computer Active Vision

Wu Gui, Tao Jun

International Journal of Advanced Network, Monitoring and Controls, Volume 1 , ISSUE 2, 68–75

Research Article | 18-March-2020

Horvitz-Thompson estimator based on the auxiliary variable

J. Al-Jararha, Mazen Sulaiman

Statistics in Transition New Series, Volume 21 , ISSUE 1, 37–53

Research Article | 13-December-2017

ENHANCED RSSI-BASED HIGH ACCURACY REAL-TIME USER LOCATION TRACKING SYSTEM FOR INDOOR AND OUTDOOR ENVIRONMENTS

to cater this solution. The proposed RSSI-based tracking technique is divided into two main phases, namely the calibration of RSSI coefficients (deterministic phase) and the distance along with position estimation of user location by iterative trilateration (probabilistic phase). A low complexity RSSI smoothing algorithm is implemented to minimize the dynamic fluctuation of radio signal received from each reference node when the target node is moving. Experiment measurements are carried out to

Erin-Ee-Lin Lau, Boon-Giin Lee, Seung-Chul Lee, Wan-Young Chung

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 2, 534–548

research-article | 30-November-2019

Successful BCI communication via high-frequency SSVEP or visual, audio or tactile P300 in 30 tested volunteers

calibration in P300 and SSVEP (steady-state visual evoked potential) paradigms or often longer training in MI-BCI (motor imagery-brain computer interface). While the lengths of these sessions are usually fixed or limited, it is possible that in some cases longer training or repeating the whole session on another day may turn a fail into successful communication. The quality of EEG recordings, rendering of the stimuli and the efficiency of the signal processing algorithms used in different BCI systems vary

Anna Chabuda, Marian Dovgialo, Anna Duszyk, Anna Stróż, Maciej Pawlisz, Piotr Durka

Acta Neurobiologiae Experimentalis, Volume 79 , ISSUE 4, 421–431

Article | 02-November-2017

Scalability and Performance Issues in Deeply Embedded Sensor Systems

Prasanna Sridhar, Asad M. Madni

International Journal on Smart Sensing and Intelligent Systems, Volume 2 , ISSUE 1, 1–14

Article | 01-September-2016

A GAIN SCHEDULING OF PI CONTROLLERS OF A MULTI-SPAN WEB TRANSPORT SYSTEM

calibration. The algorithm is simple and efficient providing fast real-time implementation, since it does not require any data processing. The proposed technique features robustness and simplicity. The implications of this method reside in its applicability in an industrial platform.

Nicola Ivan Giannoccaro, Tetsuzo Sakamoto, Issei Uchitomi

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 3, 1516–1533

research-article | 23-August-2019

Linearization of the sensors characteristics: a review

calibration of a sensor, a linear relationship between input and output is highly desirable. A general block diagram of the linearization unit showing important functional subunits is shown in Figure 3. Figure 3: A general block diagram of the linearization unit. By linearization, the nonlinear response curve can be converted into a straight line fit, which simplifies the calibration process. So, the calibration may be performed in the shortest time and at low cost. Hence, it is most convenient

Tarikul Islam, S. C. Mukhopadhyay

International Journal on Smart Sensing and Intelligent Systems , Volume 12 , ISSUE 1, 1–21

Article | 14-October-2020

Quantitation of red cell–bound IgG, IgA, and IgM in patients with autoimmune hemolytic anemia and blood donors by enzymelinked immunosorbent assay

This paper describes an enzyme immunoassay for the quantitative determination of IgG, IgA, and IgM immunoglobulins on RBCs. Ether eluates made from RBCs were followed by an enzyme-linked immunosorbent assay of immunoglobulin concentration. Calibration curves were derived from immunoglobulin standards and the number of molecules of each isotype per RBC was calculated. The assay was carried out in 200 healthy blood donors and 62 patients with warm autoimmune hemolytic anemia (AIHA), two of them

Antonio A. Bencomo, Martha Díaz, Yalile Alfonso, Odalys Valdés, María E. Alfonso

Immunohematology, Volume 19 , ISSUE 2, 47–53

Article | 05-June-2013

A reliable signal conditioning circuit to acquire human biopotentials

Aditi Bhattacharya, Dibyendu Basu, Bhaswati Goswami, Ratna Ghosh

International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 3, 1116–1132

Research paper | 01-September-2011

EDGE EXTRACTION USING IMAGE AND THREE-AXIS TACTILE DATA

This paper describes a hand-arm system equipped with optical three-axis tactile sensors and a binocular vision sensor. The vision compensates for the limitations of tactile information and tactile sensing, and vice versa. The tactile sensor can obtain geometrical data as real scale, while image data requires calibration to obtain length as a metric unit. Even if stereovision is used, we cannot obtain sufficient precision. In the evaluation test, the robotic hand equipped with tactile sensors

Sukarnur Che Abdullah, Takuya Ikai, Yusuke Dosho, Hanafiah Bin Yussof, Masahiro Ohka

International Journal on Smart Sensing and Intelligent Systems, Volume 4 , ISSUE 3, 508–5026

Article | 01-June-2016

SURFACE FOLLOWING WITH AN RGB-D VISION-GUIDED ROBOTIC SYSTEM FOR AUTOMATED AND RAPID VEHICLE INSPECTION

applications in automated vehicle inspection, cleaning, and security screening. In order to efficiently navigate the robotic manipulator along the vehicle’s surface within regions of interest that are selectively identified, an efficient and accurate integration of information from multiple RGB-D sensors and robotic components is proposed. The main components of the proposed approach include: automated vehicle category recognition from visual information; RGB-D sensors calibration; extraction of specific

Danial Nakhaeinia, Pierre Payeur, Alberto Chávez-Aragón, Ana-Maria Cretu, Robert Laganière, Rizwan Macknojia

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 2, 419–447

Article | 08-December-2019

DEVELOPMENT OF A LOW-COST MEASUREMENT SYSTEM TO DETERMINE 3-DIMENSIONAL PEDAL LOADS DURING IN-SITU CYCLING

calibrated with the Global Regression method acquiring a calibration matrix with a standard error percentage of full scale of maximum 0.5%. The instrumented pedal distinguishes itself from state-of-the-art techniques through (i) compatibility: it fits on every conventional bicycle, (ii) compactness: not influencing the cycling kinematics, (iii) broad applicability: it is applicable for in-situ measurements with extreme manoeuvres and (iv) accuracy: it delivers a relative high accuracy in relation to the

Sien DIELTIENS, Jordi D’HONDT, Marc JUWET, Mark VERSTEYHE

Transport Problems, Volume 14 , ISSUE 4, 151–160

Article | 08-April-2018

Application of Computational Tools to Analyze and Test Mini Gas Turbine

housing. Instrumentation, testing, and calibration are the three main milestones for this project As a result, The Inlet Mass Flow Rate numeric indicator value is calculated, not measured. The calculated value is dependent on the measured values of Compressor Inlet Temperature (T1), Compressor Inlet Static Pressure (Ps), and Compressor Inlet Dynamic Pressure (Pt-Ps). However, the pressure, temperature and thrust were tested as a function of RPM. The mini turbine engine is ready to be used in student

Haifa El-sadi, Anthony Duva

International Journal of Advanced Network, Monitoring and Controls, Volume 2 , ISSUE 1, 90–99

Research Article | 02-November-2017

Training Data Compression Algorithms and Reliability in Large Wireless Sensor Networks

need any synchronization at the local nodes it uses compress once and stamp locally without any threshold such as application specific calibration values (30oC) and the summarization can be application independent making it more a sensor network reliability index and using it independent of the actual measured values.

Vasanth Iyer, Garimella Ram Murthy, M.B. Srinivas

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 4, 912–921

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