Steganography is the art of “secret communication”. Its goal is to transmit a message (information) hidden inside another visible message. The typical visible message used in many steganographic systems is a digital image and the embedded message is usually hidden by working in the Fourier domain. In this paper we present Ramses, a novel approach to the steganography based on the Puzzle Image M...

Due to the enormous increase in the data, exploring and analyzing them is increasingly important but difficult to achieve. Information visualization and visual data mining can help to deal with this. Visual data exploration has a high potential and many applications such as fraud detection and data mining will use information visualization technology for an improved data analysis. The advantage...

In this paper, we propose a visual feedback system for a neuroanatomy. The stereoscopic microscope image of the dentate gyrus of adult rat brain in the neuroanatomy is converted into a black and white image. By the region segmentation, the region of the dentate gyrus is extracted. A binary image is obtained from a microscopic photo of cresyl violet-stained coronal section of the rat brain as a ...

Davida Teller worked on this book until 2009. At that time her health prevented her from finishing and she passed away in 2011. The book was well along but incomplete. I have edited the book with the goal of making it accessible to others. As much as possible, my approach was to preserve Davida's voice by removing material that was incomplete rather than adding material. This printing includes ...

| Using object recognition in simple scenes as the task, this research focuses on two fundamental problems in neural network systems: (1) processing large amounts of input with limited resources , and (2) the representation and use of struc-tured knowledge. The rst problem arises because no practical neural network can process all the visual input simultaneously and eeciently. The solution is t...

The neural control system of a high speed monocular camera head for the tracking of real-world targets is presented in this paper. The tracking system consists of four subsystems: monocular camera head, adaptive image processing system for estimation of the momentary position of object, neural network predictor and PID-controller, controlling motors of the camera head. The designed neural netwo...

ADVISOR is an automated visual surveillance system for metro stations which was developed as part of the project ADVISOR, involving 3 academic and 3 industrial project partners. The ADVISOR system aims at making public transport safer by automatically detecting at an early stage dangerous situations which may lead to accidents, violence or vandalism. In order to achieve this people are tracked ...

In this paper we propose an overview of a project aiming at building an audio-visual laughter synthesis system. The same approach is followed for acoustic and visual synthesis. First a database has been built to have synchronous audio and 3D visual landmarks tracking data. Then this data has been used to build HMM models of acoustic laughter and visual laughter separately. Visual laughter model...

For the colour industry, metamerism is an unpopular word since it implies different mixes of the colours of the spectrum which can be seen to be the same only under certain conditions of light. However, can this assessment be extended to the visual system? Or could metamerism be the system’s mechanism to balance the stimuli it receives? The results obtained bring to mind an assertion made by Ma...

In this report we present the architecture of the overall data mining system and detail the main functionalities of its visual interface. The semantics of the visual operators is formally given in terms of the language of the corresponding mining techniques, namely metarules, association rules, clustering, approximate similarity queries.