Efficient color histogram indexing for quadratic form distance functions

Assessing flood risk and detecting changes of salt water inflow in a coastal micro-tidal brackish marsh using GISIn order to assess changes in salt water inflow and potential flood risks due to sea level rise in a micro-tidal Beka brackish marsh on the Polish Baltic Coast GIS was used. Such wetlands are important elements of coastal zone natural environments. Creating a geodatabase within a GIS system makes it possible to carry out broad analyses of complex systems, such as coastal wetlands. The results indicate that a 40 cm sea-level rise would considerably increase the frequency of flooding in the investigated area, in part because of the small range of the annual sea level oscillations there. A map of the index of changes in saltwater inflow, created with the help of cost-weighted distance (functions), shows that changes which have occurred along the shore, consisting of filling in the drainage channel outlets, have likely had a significant impact on the vegetation of the area.

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Plant Leaf Analysis Based on Color Histogram and Cooccurrence Matrices

International Journal of Computer Sciences and Engineering ◽

10.26438/ijcse/v7i2.153157 ◽

2019 ◽

Vol 7 (2) ◽

pp. 153-157

Author(s):

Renuka R. Londhe

Keyword(s):

Color Histogram ◽

Plant Leaf ◽

Leaf Analysis

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Video Shot Boundary Detection � Comparision of Color Histogram and Gist Method

i-manager s Journal on Communication Engineering and Systems ◽

10.26634/jcs.1.1.1728 ◽

2012 ◽

Vol 1 (1) ◽

pp. 11-19

Author(s):

P. Swati Sowjanya ◽

Ravi Mishra

Keyword(s):

Boundary Detection ◽

Color Histogram ◽

Shot Boundary Detection ◽

Video Shot ◽

Shot Boundary

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Using clusterization principles for the selection of repair sections of main oil pipelines based on diagnostic data

Proceedings of the Mavlyutov Institute of Mechanics ◽

10.21662/uim2011.1.019 ◽

2011 ◽

Vol 8 (1) ◽

pp. 201-210

Author(s):

R.M. Bogdanov

Keyword(s):

Cluster Analysis ◽

Defect Density ◽

Density Variation ◽

Distance Functions ◽

Oil Pipeline ◽

Oil Pipelines ◽

Classification Of Images ◽

Main Oil Pipeline ◽

Selection Of

The problem of determining the repair sections of the main oil pipeline is solved, basing on the classification of images using distance functions and the clustering principle, The criteria characterizing the cluster are determined by certain given values, based on a comparison with which the defect is assigned to a given cluster, procedures for the redistribution of defects in cluster zones are provided, and the cluster zones parameters are being changed. Calculations are demonstrating the range of defect density variation depending on pipeline sections and the universal capabilities of linear objects configuration with arbitrary density, provided by cluster analysis.

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Spheric radial basis functions in Mahalanobis measuring for displaying local field features

Geodesy and Cartography ◽

10.22389/0016-7126-2019-952-10-2-9 ◽

2019 ◽

Vol 952 (10) ◽

pp. 2-9

Author(s):

Yu.M. Neiman ◽

L.S. Sugaipova ◽

V.V. Popadyev

Keyword(s):

Gravitational Field ◽

Quadratic Form ◽

Local Field ◽

Euclidean Distance ◽

Basis Functions ◽

Spherical Functions ◽

Local Models ◽

Stationary Field ◽

Modeling Process ◽

The Earth

As we know the spherical functions are traditionally used in geodesy for modeling the gravitational field of the Earth. But the gravitational field is not stationary either in space or in time (but the latter is beyond the scope of this article) and can change quite strongly in various directions. By its nature, the spherical functions do not fully display the local features of the field. With this in mind it is advisable to use spatially localized basis functions. So it is convenient to divide the region under consideration into segments with a nearly stationary field. The complexity of the field in each segment can be characterized by means of an anisotropic matrix resulting from the covariance analysis of the field. If we approach the modeling in this way there can arise a problem of poor coherence of local models on segments’ borders. To solve the above mentioned problem it is proposed in this article to use new basis functions with Mahalanobis metric instead of the usual Euclidean distance. The Mahalanobis metric and the quadratic form generalizing this metric enables us to take into account the structure of the field when determining the distance between the points and to make the modeling process continuous.

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