نتایج جستجو برای: root detection

تعداد نتایج: 700951  

2016
R. Raol

The image-based detection and tracking of moving objects are extremely important for many aerospace and aviation applications, including satellite-based imagery. In this paper, we briefly review various approaches related to image-centroid and/or target tracking. We emphasize square root algorithms that are supposed to be more efficient than the basic implementation of KF. Then, we present some...

Journal: :Acta odontologica Scandinavica 2012
Merete Markvart Lars Bjørndal Tron A Darvann Per Larsen Michel Dalstra Sven Kreiborg

AIM The purpose of this study was to investigate the scanning and segmentation precision of surface models of molars for the detection of small volumes, such as the reduced pulp cavity; formation of mineral deposits; detection of narrow root canals and to improve the clinical and morphological understanding of the number of root canals and their configuration. METHODS Eighteen human molars we...

Journal: :Remote Sensing 2014
Shiping Zhu Chunlin Huang Yi Su Motoyuki Sato

The objectives of this study were to detect coarse tree root and to estimate root biomass in the field by using an advanced 3D Ground Penetrating Radar (3D GPR) system. This study obtained full-resolution 3D imaging results of tree root system using 500 MHz and 800 MHz bow-tie antennas, respectively. The measurement site included two larch trees, and one of them was excavated after GPR measurem...

2011
L. E. Sjöberg

The high-degree Earth Gravitational Model EGM08 allows for geoid determination with a resolution of the order of 5'. Using this model for estimating the quasigeoid height, we estimate the global root mean square (rms) commission error to 5 and 11 cm, based on the assumptions that terrestrial gravity contributes to the model with an rms standard error of 5 mGal and correlation length 0.01◦ and 0...

2008
Andreas Park Daniel Sgroi

While herding has long been suspected to play a role in financial market booms and busts, theoretical analyses have struggled to identify conclusive causes for the effect. Recent theoretical work shows that informational herding is possible in a market with efficient asset prices if information is bi-polar, and contrarianism is possible with single-polar information. We present an experimental ...

Journal: :avicenna journal of dental research 0
farhad faramarzi endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) mitra vossoghi endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iran; endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iran. tel: +98-8118381086, fax: +98-8118381085سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) abbas shokri radiology department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) bahare shams periodontics department, faculty of dentistry, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) maryam vossoghi prosthodontics department, kerman university of medical sciences, kerman, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences) elham khoshbin endodontics department, faculty of dentistry, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences)

conclusions most extracted maxillary first molars were three rooted and four canals. cbct has relatively high reproducibility and accuracy of distinguishing mb2 canal. results we found 100% of cases with three separated roots, from which 69.23% had four canals including mb2 and 30.77% with three canals. 71.3% of mesiobuccal roots were two canals of type two vertucci and 28.7% type 4 with the me...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1385

چکیده ندارد.

Journal: :Annals of botany 2011
Marc Antoine Cannesan Christophe Gangneux Arnaud Lanoue David Giron Karine Laval Martha Hawes Azeddine Driouich Maïté Vicré-Gibouin

BACKGROUND AND AIMS The oomycete Aphanomyces euteiches causes up to 80 % crop loss in pea (Pisum sativum). Aphanomyces euteiches invades the root system leading to a complete arrest of root growth and ultimately to plant death. To date, disease control measures are limited to crop rotation and no resistant pea lines are available. The present study aims to get a deeper understanding of the earl...

Journal: :Plant physiology 2007
Paramita Basu Anupam Pal Jonathan P Lynch Kathleen M Brown

Kinematic analysis has provided important insights into the biology of growth by revealing the distribution of expansion within growing organs. Modern methods of kinematic analysis have made use of new image-tracking algorithms and computer-assisted evaluation, but these methods have yet to be adapted for examination of growth in a variety of plant species or for analysis of graviresponse. Ther...

Journal: :international journal of automotive engineering 0
a. khodayari m. yousefi

in recent years due to improvements of technology within automobile industry, design process of advanced driver assistance systems for collision avoidance and traffic management has been investigated in both academics and industrial levels. detection of traffic signs is an effective method to reach the mentioned aims. in this paper a new intelligent driver assistance system based on traffic sig...

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