By Chrysi Papalazarou, Peter M. J. Rongen, Peter H. N. de With (auth.), Jacques Blanc-Talon, Wilfried Philips, Dan Popescu, Paul Scheunders (eds.)

This publication constitutes the refereed complaints of the eleventh overseas convention on complex ideas for clever imaginative and prescient platforms, ACIVS 2009, held in Bordeaux, France in September/October 2009.

The forty three revised complete papers and 25 posters awarded have been rigorously reviewed and chosen from a hundred and fifteen submissions. The papers are geared up in topical sections on technovision, primary mathematical suggestions, photograph processing, coding and filtering, photograph and video research, desktop imaginative and prescient, monitoring, colour, multispectral and special-purpose imaging, clinical imaging, and biometrics.

Show description

Read or Download Advanced Concepts for Intelligent Vision Systems: 11th International Conference, ACIVS 2009, Bordeaux, France, September 28–October 2, 2009. Proceedings PDF

Best international_1 books

Algebraic and Algorithmic Aspects of Differential and Integral Operators: 5th International Meeting, AADIOS 2012, Held at the Applications of Computer Algebra Conference, ACA 2012, Sofia, Bulgaria, June 25-28, 2012, Selected and Invited Papers

This ebook constitutes the court cases of the fifth foreign assembly on Algebraic and Algorithmic features of Differential and indispensable Operators, AADIOS 2012, held on the functions of laptop Algebra convention in Sofia, Bulgaria, on June 25-28, 2012. the complete of nine papers awarded during this quantity comprises 2 invited papers and seven commonplace papers which have been conscientiously reviewed and chosen from thirteen submissions.

Electronic Participation: 6th IFIP WG 8.5 International Conference, ePart 2014, Dublin, Ireland, September 2-3, 2014. Proceedings

This booklet constitutes the refereed complaints of the sixth IFIP WG eight. five foreign convention on digital Participation, ePart 2014, held in Dublin, eire, in September 2014. The eleven revised complete papers offered have been rigorously reviewed and chosen from 20 submissions. The papers were equipped within the following topical sections: social media; overview and research; attractive electorate on-line; and software program structures and assessment.

Water Resources and Environment: Proceedings of the 2015 International Conference on Water Resources and Environment

The 2015 foreign convention on Water source and setting (WRE2015) goals to supply a platform the place students from diverse nations can alternate principles, reviews and perspectives. This ebook is split into 4 major themes:1. Hydrology and water resources;2. Water toxins; three. Water therapy equipment, and4.

XVIII International Coal Preparation Congress: 28 June—01 July 2016 Saint-Petersburg, Russia

This publication gathers technical and medical articles via major specialists from 15 nations and initially provided on the world’s such a lot prestigious discussion board on coal instruction: the XVIII overseas Coal coaching Congress. subject matters addressed contain: the mineral assets foundation of the coal undefined; difficulties and clients of improvement within the coal undefined; crushing, grinding, screening and category tactics used at sorting vegetation; coal processing and briquette factories; evaluate of plant designs and operations used all over the world; new advancements in dense-medium separators, water-based separation methods, froth flotation and dewatering; applied sciences and gear for the dry separation of coal; coal deep processing applied sciences and gear; strength iteration as a space of coal deep processing; and simulation and optimization software program for separation tactics.

Extra resources for Advanced Concepts for Intelligent Vision Systems: 11th International Conference, ACIVS 2009, Bordeaux, France, September 28–October 2, 2009. Proceedings

Example text

1 Basic Models Frame differencing (FD) [5]: also known as temporal difference, this method uses the previous frame as background model for the current frame. Setting a threshold, τ , Background Subtraction Techniques: Systematic Evaluation and Comparative Analysis 35 on the squared difference between model and frame decides on foreground and background. This threshold is the analyzed parameter. Median filtering (MF) [3]: uses the median of the previous N frames as background model for the current frame.

For every new frame, a pixel is determined to belong to the background if it falls into a deviation, σ , around the mean. The parameters of each Gaussian are updated with the current frame pixel by using a running average scheme[6], controlled by a learning factor α . The initial deviation value, σ o , and α are the analyzed parameters. Mixture of Gaussians (MoG) [9]: represents each background pixel variation with a set of weighted Gaussian distributions. Distributions are ordered according to its weight; the more relevant (until the accumulated weight gets past a threshold, τ ) are considered to model the background; the remaining model the foreground.

The purpose of LDA is to select the linear subspace Φ, which maximizes the ratio of the quotient [7]: Γ (T ) = |T T Sb T | |T T Sw T | (3) The optimal projection matrix Φ which maximizes Γ (T ) can be obtained by solving a generalized eigenvalue problem Sb Φ = Sw ΦΛ that is equivalent to −1 solve Sw Sb Φ = ΛΦ. The maximization of Γ (T ) is possible if the Sw matrix is non singular. However, in the face recognition experiments, data are always under represented. Usually, the size of the face image vector is much greater than the number of samples in the learning database which leads to a Small Sample Size problem.

Download PDF sample

Rated 4.08 of 5 – based on 13 votes