// 
//  Software is distributed under the following BSD-style license:
//
//  Title  : Variable k-Buffer using Importance Maps
//  Authors: Andreas A. Vasilakis - Kostas Vardis - Georgios Papaioannou - Konstantinos Moustakas
//  Emails : [email protected] - [email protected] - [email protected] - [email protected]
//
//  Copyright © 2017. Athens University of Economics & Business, All Rights Reserved.
//
//  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
//
//  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
//
//  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the 
//	documentation and/or other materials provided with the distribution.
//
//  3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
//  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
//  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
//  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
//  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
//  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// This research has received funding from the European Union’s
// Horizon 2020 research and innovation programme “FrailSafe”
// under grant agreement No 690140 and the Athens University of
// Economics and Business Research Centre.
//--------------------------------------------------------------------------------------