Temperature estimation studies on infrared images using radiometric approaches

Download
2011
Atay, Yağmur
In this thesis work, temperature estimation algorithms based on physical and radiometric approaches are developed. Developed algorithms, firstly, tested on artificial images for different test cases. Following this, algorithms are tried out on real infrared images in order to verify that they are working properly. Finally, temperature estimations are done by including emissivity. Obtained results are compared to the temperature estimation results of a reference infrared camera. All the results and errors obtained during this study are presented and discussed.

Suggestions

Optimally merging precipitation to minimize land surface modeling errors
Yılmaz, Mustafa Tuğrul; Shrestha, Roshan; Anantharaj, Valentine G. (American Meteorological Society, 2010-03-01)
This paper introduces a new method to improve land surface model skill by merging different available precipitation datasets, given that an accurate land surface parameter ground truth is available. Precipitation datasets are merged with the objective of improving terrestrial water and energy cycle simulation skill, unlike most common methods in which the merging skills are evaluated by comparing the results with gauge data or selected reference data. The optimal merging method developed in this study minim...
Temporal variations and sources of elements in the South Pole atmosphere: 1. Nonenriched and moderately enriched elements
Tuncel, Süleyman Gürdal; ZOLLER, WH (American Geophysical Union (AGU), 1989-09-20)
Abstract High‐volume particle samples were collected from 1979 to 1983 from the south pole atmosphere and analyzed by nuclear methods. The new results are combined with similar studies at the south pole. There is no trend of concentrations during 12 years of sampling, but concentrations of elements fluctuate through seasonal cycles. Concentrations of elements associated with crustal dust and sea salt showed opposite seasonal variations. Concentrations of most crustal elements are low during winters, but dou...
Statistical downscaling of monthly reservoir inflows for Kemer watershed in Turkey: use of machine learning methods, multiple GCMs and emission scenarios
OKKAN, UMUT; İnan, Gül (Wiley, 2015-09-01)
In this study, statistical downscaling of general circulation model (GCM) simulations to monthly inflows of Kemer Dam in Turkey under A1B, A2, and B1 emission scenarios has been performed using machine learning methods, multi-model ensemble and bias correction approaches. Principal component analysis (PCA) has been used to reduce the dimension of potential predictors of National Centers for Environmental Prediction and National Center for Atmospheric Research (NCEP/NCAR) reanalysis data. Then, the reasonabl...
Improved state estimation for jump Markov linear systems
Orguner, Umut; Demirekler, Mübeccel; Department of Electrical and Electronics Engineering (2005)
This thesis presents a comprehensive example framework on how current multiple model state estimation algorithms for jump Markov linear systems can be improved. The possible improvements are categorized as: -Design of multiple model state estimation algorithms using new criteria. -Improvements obtained using existing multiple model state estimation algorithms. In the first category, risk-sensitive estimation is proposed for jump Markov linear systems. Two types of cost functions namely, the instantaneous an...
Modeling Temperature and Pricing Weather Derivatives Based on Temperature
Tastan, Birhan; Hayfavi, Azize (2017-01-01)
This study first proposes a temperature model to calculate the temperature indices upon which temperature-based derivatives are written. The model is designed as a mean-reverting process driven by a Levy process to represent jumps and other features of temperature. Temperature indices are mainly measured as deviations from a base temperature, and, hence, the proposed model includes jumps because they may constitute an important part of this deviation for some locations. The estimated value of a temperature ...
Citation Formats
Y. Atay, “Temperature estimation studies on infrared images using radiometric approaches,” M.S. - Master of Science, Middle East Technical University, 2011.