Results 271 to 280 of about 7,599 (306)

Calibration as parameter estimation in sensor networks

Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications, 2002
We describe an ad-hoc localization system for sensor networks and explain why traditional calibration methods are inadequate for this system. Building upon previous work, we frame calibration as a parameter estimation problem; we parameterize each device and choose the values of those parameters that optimize the overall system performance. This method
Kamin Whitehouse, David E. Culler
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CCD camera calibration and noise estimation

Proceedings 1992 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003
The variation in digitized pixel values that is due to sensor noise and scene variation is quantified, using physical models for CCD (charge-coupled device) video cameras and material reflectance. This analysis forms the basis of algorithms for camera characterization and calibration and for surface description.
Glenn Healey, Raghava Kondepudy
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Calibrating estimation tools for software development

Software Engineering Journal, 1990
Desired improvement in the software process and product has given rise to greater use of quantitative managment techniques in software development. The use of algorithmic-based software cost estimation tools has been a part of this movement. This paper uses data collected from six commercial organisations on 112 software projects to investigate the ...
D. Ross Jeffery, Graham C. Low
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Gaze Estimation with Easy Calibration Method

Proceedings of the 2020 5th International Conference on Intelligent Information Technology, 2020
In the corneal reflection method for gaze estimation, the user is asked to look at multiple calibration points with known lines of sight, and the central pupil point is captured for each vision angle. Therefore, the center of the eye in the images can be acquired for each known eye rotation angle.
Kiyoshi Hoshino, Yuki Noguchi, Yuya Nakai   +2 more
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WindSat calibration and geophysical parameter estimation

IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004
Three aspects of WindSat performance are presented. (1). End-to-end system calibration is tested by comparisons between WindSat measurements and a robust model of the Earth TB using the vicarious cold reference method. (2). In an effort to determine probable causes for any calibration biases or scale errors that are identified, a refined Antenna ...
Christopher S. Ruf, Shannon T. Brown, Ying Hu, Hirofumi Kawakubo   +3 more
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Estimating the intervention effect in calibration substudies

Statistics in Medicine, 2019
Exposure assessment is often subject to measurement errors. We consider here the analysis of studies aimed at reducing exposure to potential health hazards, in which exposure is the outcome variable. In these studies, the intervention effect may be estimated using either biomarkers or self‐report data, but it is not common to combine these measures of ...
Michal Talitman, Malka Gorfine, David M. Steinberg   +2 more
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CALIBRATION ESTIMATOR

2010
Regresyon tahmin yöntemine benzeyen bir diğer tahmin yöntemi de ayarlama tahmin edicisi yöntemidir. Ayarlama tahmin edicisi yardımcı değişken(ler) bilgisini tahminlerin etkinliğini arttırmak için kullanır. Ayarlama tahmin edicisi, bir veya birden çok yardımcı değişken (x değişkenleri) için yığın toplamlarını bilmeyi gerektirir.
ALKAYA, Aylin, ESİN, Alptekin
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Realtime gaze estimation with online calibration

2014 IEEE International Conference on Multimedia and Expo (ICME), 2014
For an eye gaze estimation system, calibration is an unavoidable procedure to determine certain person-specific parameters, either explicitly or implicitly. Although several offline implicit calibration methods have been proposed to ease the calibration burden, the calibration procedure is still cumbersome and the gaze estimation accuracy needs further
Li Sun, Mingli Song, Zicheng Liu 0001, Ming-Ting Sun   +3 more
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Bayesian calibration for forensic age estimation

Statistics in Medicine, 2015
Forensic medicine is increasingly called upon to assess the age of individuals. Forensic age estimation is mostly required in relation to illegal immigration and identification of bodies or skeletal remains. A variety of age estimation methods are based on dental samples and use of regression models, where the age of an individual is predicted by ...
Luigi Ferrante, Edlira Skrami, Rosaria Gesuita, Roberto Cameriere   +3 more
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Calibrated estimators using non-linear calibration constraints

Journal of Statistical Computation and Simulation, 2019
In this paper, the problem of estimation of mean through calibration technique has been discussed.
Shameem Alam, Sarjinder Singh, Javid Shabbir   +2 more
openaire   +1 more source