A NURBS Based Technique for an Optimized Transmit Opportunity Map Processing in WLAN Networks

2017 ◽  
pp. 143-154 ◽  
Author(s):  
Mehdi Guessous ◽  
Lahbib Zenkouar
Keyword(s):  
Map Processing ◽  
Opportunity Map

scholarly journals Phase-unwrapping algorithm for noisy phase-map processing

1994 ◽  
Vol 33 (29) ◽  
pp. 6725 ◽  
Author(s):  
J. A. Quiroga ◽  
E. Bernabeu
Keyword(s):  
Phase Unwrapping ◽  
Map Processing ◽  
Phase Map

scholarly journals RESEARCH ON THE KEY TECHNOLOGY OF LARGE SCALE MAPPING FROM LOW ALTITUDE PHOTOGRAMMETRY

2016 ◽  
Vol XLI-B1 ◽  
pp. 789-796
Author(s):  
Wu Bo-Yi ◽  
Zhang Ning ◽  
Su Guo-Zhong
Keyword(s):  
Large Scale ◽  
Shanxi Province ◽  
Successful Implementation ◽  
Control Points ◽  
Theoretic Analysis ◽  
Ground Control Points ◽  
Traditional Procedure ◽  
Map Processing ◽  
Low Altitude ◽  
Wide Angle Camera

Based on the theoretic analysis of the accuracy in large scale photogrammetric mapping, some defects in traditional procedure were discussed. A set of key technologies dedicate to accuracy improvement in low altitude photogrammetry were analyzed in detail, namely the utilization of wide angle camera and low altitude flight, enhancement in image matching, predesigned layout of Ground Control Points (GCPs) in field survey, optimization of adjustment model and improvement in map processing. Besides, a low altitude aerial unmanned airship system was established. Finally, successful implementation in 1:500 topographic mapping project in built-up areas of 30 counties in Shanxi Province proves the practicability and effectiveness of the proposed approaches.

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