Improving Fiber Bend Sensor via Wavefront Shaping

21. Ulusal Optik, Elektro-Optik ve Fotonik Çalıştayı


Improving edge detection using ıntersection consistency
Çiftçi, Serdar; Yarman Vural, Fatoş Tunay; Kalkan, Sinan; Department of Computer Engineering (2011)
Edge detection is an important step in computer vision since edges are utilized by the successor visual processing stages including many tasks such as motion estimation, stereopsis, shape representation and matching, etc. In this study, we test whether a local consistency measure based on image orientation (which we call Intersection Consistency - IC), which was previously shown to improve detection of junctions, can be used for improving the quality of edge detection of seven different detectors; namely, C...
Enhanced diode performance in cadmium telluride-silicon nanowire heterostructures
AKSOY, FUNDA; Akgul, Guvenc; Gullu, Hasan Huseyin; Ünalan, Hüsnü Emrah; Turan, Raşit (2015-09-25)
We report on the structural and optoelectronic characteristics and photodetection properties of cadmium telluride (CdTe) thin film/silicon (Si) nanowire heterojunction diodes. A simple and cost-effective metal-assisted etching (MAE) method is applied to fabricate vertically oriented Si nanowires on n-type single crystalline Si wafer. Following the nanowire synthesis, CdTe thin films are directly deposited onto the Si nanowire arrays through RF magnetron sputtering. A comparative study of X-ray diffraction (...
Improving seismic performance of deficient reinforced concrete columns using carbon fiber-reinforced polymers
ÖZCAN, OKAN; Binici, Barış; Ozcebe, Guney (Elsevier BV, 2008-06-01)
Reinforced concrete columns lacking transverse reinforcing steel do not possess necessary ductility to dissipate seismic energy during a major earthquake. The study reported herein investigates the use of carbon fiber-reinforced polymer (CFRP) wrapping as a method of retrofitting nonductile square reinforced concrete columns with low strength concrete and plain bars. Five specimens representative of transverse steel deficient flexure dominated columns in existing buildings were tested under lateral cyclic d...
Improving junction detection by semantic interpretation
Kalkan, Sinan; Shi, Yan; Pilz, Florian; Kruger, Norbert (2007-03-08)
Every junction detector has a set of thresholds to make decisions about the junctionness of image points. Low-contrast junctions may pass such thresholds and may not be detected. Lowering the thresholds to find such junctions will lead to spurious junction detections at other image points. In this paper, we implement a junction-regularity measure to improve localization of junctions, and we develop a method to create semantic interpretations of arbitrary junction configurations at improved junction posi...
Enhancing petroleum recovery from heavy oil fields by microwave heating
Acar, Çağdaş; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2007)
There are many heavy oil reservoirs with thin pay zones (less than 10 m) in the world and in Turkey. Conventional steam injection techniques are not costeffective for such reservoirs, due to excessive heat loss through the overburden. Heat losses can be minimized through controlled heating of the pay zone. One such way is to introduce heat to the reservoir in a controlled manner is microwave heating. Laboratory studies on microwave heating of a scaled model of a heavy oil reservoir with a thin pay zone are ...
Citation Formats
G. Afshari, Ş. Kürekci, and E. Yüce, “Improving Fiber Bend Sensor via Wavefront Shaping,” presented at the 21. Ulusal Optik, Elektro-Optik ve Fotonik Çalıştayı, İstanbul, Türkiye, 2019, Accessed: 00, 2021. [Online]. Available: