Zelang et al. presented road extraction method based on tensor voting, kernel density estimation, and subspace constrained mean shift [21].
Zelang et al. [21] proposed a method for road centerline extraction from classified image which consists of the three stages: feature points are extracted using tensor voting, kernel density estimation is used to find probability of each pixel being located on the road centerline, and feature points are projected onto ridge lines using the subspace constrained mean shift method.
That could help to explain how shortwave colour vision has evolved, determining whether major shifts in the spectral sensitivity of the SWS1 pigment are facilitated and/or constrained by shifts in co-adapted physiological traits.
For those whose freedom to express themselves is constrained, the shifting boundaries of acceptability are a source of hope, but for others they demonstrate that the freedoms we have now can also be taken away.
In addition, to extend the optimal algorithm in the practical point of view, the first-come-first-served order and constrained position shifting constraint are considered.
The main objective of this research is to design an algorithm with very low computational times able to minimize delays in the scheduled times of arrival and departure flights in an airport with a mixed-operation runway, under wake vortex separation and Constrained Position Shifting restrictions.
However, the utility of fertilization for restoration may be constrained by shifts in species composition and the lack of response by belowground biomass, which reduces replacement of soil carbon and nitrogen.
We tested the hypothesis that the phylogenetic distance between native and potential novel species has constrained host-shifts during male-killer evolution.
Overall, the findings of this study provide the necessary insight and motivation to the remote sensing community, particularly in resource constrained regions, to shift towards embracing various texture metrics obtained from the readily-available and cheap multispectral Landsat-8 OLI sensor.
The two said that as defense spending becomes constrained, and Mr. Gates shifts money to troops in Iraq and Afghanistan, budgeting "has increasingly become a zero-sum game".
