Orthophoto feature extraction and clustering

Title:

Orthophoto feature extraction and clustering

Creator:

Kudelka, Miloš, Horák, Zdeněk, Voženílek, Vít, and Snášel, Václav

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:c8387bb4-70b0-4f82-88ce-a07141e5e93d
uuid:c8387bb4-70b0-4f82-88ce-a07141e5e93d
doi:10.14311/NNW.2012.22.007

Subject:

Orthophotos, image analysis, neural network, and clustering

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

In this article we use a combination of neural networks with other techniques for the analysis of orthophotos. Our goal is to obtain results that can serve as a useful groundwork for interactive exploration of the terrain in detail. In our approach we split an aerial photo into a regular grid of segments and for each segment we detect a set of features. These features depict the segment from the viewpoint of a general image analysis (color, tint, etc.) as well as from the viewpoint of the shapes in the segment. We perform clustering based on the Formal Concept Analysis (FCA) and Non-negative Matrix Factorization (NMF) methods and project the results using effective visualization techniques back to the aerial photo. The FCA as a tool allows users to be involved in the exploration of particular clusters by navigation in the space of clusters. In this article we also present two of our own computer systems that support the process of the validation of extracted features using a neural network and also the process of navigation in clusters. Despite the fact that in our approach we use only general properties of images, the results of our experiments demonstrate the usefulness of our approach and the potential for further development.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

Neural network world: international journal on neural and mass-parallel computing and information systems | 2012 Volume:22 | Number:2

Harvested from:

CDK

Metadata only:

false