Frédérique Robert-Inacio

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6.1 introduction In Chapter 5, we saw how color sensors convert a light radiation into an electrical signal to build a digital image. It describes the two currently most widespread sensor technologies (CCD and CMOS) as well as the emerging technologies offered by some manufacturers. These color sensors are nowadays ubiquitous in the objects of everyday(More)
In computer vision several methods are directly inspired by the human visual system. Visual attention is one of the main abilities a human eye uses to discover a new scene. This ability is based on the focus of attention principle, which enables to look at a particular point. The works presented in this paper describe how to simulate such an ability in(More)
In this paper, we present a spatially adaptive filter for color median filtering. Several alternative implementations of such a filter are given, using different ways of gradient computation. Then, several methods of color median filtering are compared in terms of performance on a particular image. Vector median filters are considered as well as median(More)
In pattern recognition, shape classification plays a very important role as it enables to gather shapes in different families, each family characterized by a set of common features such as elongation, symmetry, circularity and so on. In this context, we present a similarity parameter directly linked to the Asplund distance between shapes. This parameter(More)
When a secure component executes sensitive operations, the information carried by the power consumption can be used to recover secret information. Many different techniques have been developped to recover this secret, but only few of them focus on the recovering of the executed code itself. Indeed, the code knowledge acquired through this step of Simple(More)