Software Listing of Author : "Luigi Rosa"
- Dimensionality Reduction For Pattern Recognition
- License: Freeware
- Price: 0.00


Advances in data collection and storage capabilities during the past decades have led to an information overload in most sciences. Researchers working in domains as diverse as engineering, astronomy, biology, remote sensing, economics, and consumer transactions, face larger and larger observations and simulations on a daily basis. Such datasets, in contrast with smaller, more traditional datasets that have been studied extensively in the past, present new challenges in data analysis. Traditional statistical methods break down partly because of the increase in the number of observations, but mostly because of the increase in the number of variables associated with each observation. The dimension of the data is the number of variables that are measured on each observation. High-dimensional datasets present many mathematical challenges as...
- Publisher: Luigi Rosa
- Date Released:
- Download Size: 296 KB
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- Platform: WinOther
- Fast and Accurate Iris Segmentation
- License: Freeware
- Price: 0.00


The use of biometric signatures, instead of tokens such as identification cards or computer passwords, continues to gain increasing attention as an efficient means of identification and verification of individuals for controlling access to secured areas, materials, or systems and a wide variety of biometrics has been considered over the years in support of these challenges. Iris recognition is especially attractive due to the stability of the iris texture patterns with age and health conditions. Iris image segmentation and localisation is a key step in iris recognition and plays an essential role the accuracy of matching. We have developed a fast and accurate scheme for iris segmentation. On CASIA Iris Database the average time required for iris detection is 0.1901 seconds.
By adopting an hybrid scheme for features...
- Publisher: Luigi Rosa
- Date Released:
- Download Size: 481 KB
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- Platform: WinOther
- Fast Gaussian Filtering
- License: Freeware
- Price: 0.00


A recursive implementation of the Gaussian filter. This implementation yields an infinite impulse response filter that has 6 MADDs per dimension independent of the value of sigma in the Gaussian kernel. Recursive Gabor filtering for 1D and 2D signals. For more information please visit: http://utenti.lycos.it/matlab/gabor.htm References: For a complete publication list of Lucas J. van Vliet please visit the following URL: http://www.ph.tn.tudelft.nl/~lucas/publica...papersLJvV.html
- Publisher: Luigi Rosa
- Date Released: 04-05-2013
- Download Size: 10 KB
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- Platform: Matlab, Scripts
- FFT2 optimization
- License: Freeware
- Price: 0.00


Many image processing applications require an extensive usage of FFT2 routine (or, in the most general case, a N-dimensional FFT) of matrices having the same dimensions. In these cases MATLAB FFT2 can result extremely inefficient. In general the execution time can be significantly reduced by splitting the N-dimensional FFT into several unidimensional FFT. A good trick is to apply the fft operator varying the minimum number of times the length of the unidimensional vectors which have to be FFT-transformed. You might be able to increase the speed of fft using the utility function fftw, which controls how MATLAB optimizes the algorithm used to compute an FFT of a particular size and dimension. In the following examples the planner is always 'hybrid'. The best vectorization strongly depends on the dimensions of input matrices. Chose the...
- Publisher: Luigi Rosa
- Date Released: 20-01-2013
- Download Size: 10 KB
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- Platform: Matlab, Scripts
- Gait Recognition System
- License: Shareware
- Price:


Gait Recognition System is a Matlab component that allows you to recognize people from a distance by the way they walk. It includes an algorithm that analyses the image of a person and identifies the spatio-temporal statistical distribution of pixels.
You can use the algorithm to analyze multiple images in order to automatically recognize individuals from security camera images.
Note: In order to implement this feature in your project you need to purchase the source code from this page.
- Publisher: Luigi Rosa
- Date Released:
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- Platform: WinOther
- High Capacity Image Steganographic Model
- License: Shareware
- Price:


High Capacity Image Steganographic Model is a Matlab tool that allows you to conceal messages in images by using the steganography principles. The information is hidden from the other users by using the least-significant bit (LSB) insertion method.
In order to use this procedure the maximum capacity of storage available in the image according to the contrast and luminance characteristics.
Note: In order to embed this component in your projects you need to purchase the source code on this page.
- Publisher: Luigi Rosa
- Date Released:
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- Platform: WinOther
- Wavelet Video Watermarking
- License: Shareware
- Price:


Wavelet Video Watermarking is a image watermarking tool that enables you to process frames quickly and efficiently. The method takes into consideration three important factors (capacity, robustness and visibility) in order to create an efficient algorithm.
This Wavelet-based watermarking scheme is solid and allows you to insert the watermarking information in less time.
Note: In order to embed this component in your projects you need to purchase the source code on this page.
- Publisher: Luigi Rosa
- Date Released:
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- Platform: WinOther