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Exploring the Measurement Of Forests With Full Waveform LIDAR through Monte-Carlo Ray Tracing
Forestry structure lidar vegetation simulation 3D modelling satellite
2015/11/20
The error of the height estimates are precisely quantified by comparison with the 3D model height. This paper discusses the development and testing of the inversion of tree height from simulations of ...
基于Monte Carlo采样的压缩感知弱匹配去噪重构
压缩感知 去噪 自适应重构 Monte Carlo采样
2017/1/5
最小二乘是现有贪婪迭代类压缩感知重构算法中通用的信号估计方法,其未考虑到可能将量测噪声引入信号估计的情况.针对以上不足,提出一种基于Monte Carlo采样的压缩感知弱匹配去噪重构算法.该算法在未知信号稀疏度先验的条件下,通过引入递推Bayesian估计减小量测噪声的干扰;同时,以弱匹配的方式筛选出有效的原子,并剔除冗余原子进而重构原信号.新算法继承了现有贪婪迭代类算法的有效性,同时避免了因噪声...