the kalut-e-ashrafa area is located in the north-east of ardakan area in central iran, yazd province. this area promises copper mineralization. the most of the minerals in this study area are silica-rich veins and veinlets. therefore, in order to identify geological formations with silica zones and to determine potential mineralization areas, aster images and remote sensing methods were used. a...

Abstract: The existing popular methods of thermo vision camera calibration are for temperature range adjustment using reference temperature sources and test thermal images. Correct temperature calibration of a thermal or infrared camera allows the inspector to be certain of the temperature measurements presented in the thermal images given from a calibrated thermal or infrared camera. Also in e...

An approach to biometric human authentication using thermal images of dorsa vein patterns is presented in this paper. In our work, an infrared (IR) camera is adopted as the input device to acquire the thermal images of the human dorsa. In this proposed approach, two thermal images are obtained; one in low resolution and the other in high resolution. Specific region of interest (ROI) on the ther...

background: in this paper we compare a highly accurate supervised to an unsupervised technique that uses breast thermal images with the aim of assisting physicians in early detection of breast cancer. methods: first, we segmented the images and determined the region of interest. then, 23 features that included statistical, morphological, frequency domain, histogram and gray-level co-occurrence ...

In this paper, we address the problem of producing visible spectrum facial images as we normally see by using thermal infrared images. We apply Canonical Correlation Analysis (CCA) to extract the features, converting a many-to-many mapping between infrared and visible images into a one-to-one mapping approximately. Then we learn the relationship between two feature spaces in which the visible f...

In this paper we do a survey on different fusion techniques of visual and thermal images for human face recognition. Image fusion constructs a single image by combining information from a set of source images together using different techniques. It is quite simpler to extract and locate facial features in visual images. Another advantage of using visual image is that it works well under control...

Thermography is an emerging technology used by construction professionals focused upon the thermal and condition performance of buildings. However, the interpretation of thermal images is difficult and often misinterpreted. This paper reports on initial work that compares thermographic images from relatively simple experimental setups with transient models of the same experiment. Thermographic ...

introduction: one of the minimally invasive methods of treatmenting liver malignancies is radiofrequency ablation (rfa) which can be applied to primary or secondary tumors. nevertheless, the disease recurrence is probable after rfa application partially due to the inadequate capability of temperature monitoring of the target tissue and visualizing the thermal damage. the goal of this work was t...

Face of an individual is a biometric trait that can be used in computer-based automatic security system for identification or authentication of that individual. While recognizing a face through a machine, the main challenge is to accurately match the input human face with the face image of the same person already stored in the face-database of the system. Not only the computer scientists, but t...