Sentence examples for extract road from inspiring English sources

Finally, Markov random field is defined upon this graph to extract road network in satellite images.

A hybrid method of using artificial neural network, contour tracing algorithm, and morphological trivial opening is used to extract road from remotely sensed image and is presented by Sowmya et al. [30].

This method consists of four stages: segmentation of remotely sensed image; then extraction of road region based on shape and spectral feature; after that, application of multivariate adaptive regression splines to extract road centerline; finally, the use of connection algorithm to get complete road network.

In the data preparation phase, topographic maps at the scale of 1 25,000 were used to extract road and drainage layers.

Step 4: Extract road network geospatial data Select the "ArcToolbox" icon, navigate to "Analysis Tools", then to "Overlay" then to "Intersect".

Narrow linear disturbance features have been detected in forests used both very high resolution (VHR) QuickBird and medium resolution SPOT imagery [49] and object-based image analysis has been used to extract roads from a variety of backgrounds [50].

The correctness represents the percentage of correctly extracted road data, i.e., the ratio between matched parts of extracted road network with total length of extracted road network.

TP - true positive, an element present in ground truth and extracted road network.

The final extracted road map in all noisy level is almost equal to noiseless result.

FN - false negative, an element present in ground truth but not in extracted road network.

FP - false positive, an element present in extracted road network but not in ground truth.