Bertrand Zavidovique

Learn More
We present a new technique for content based image retrieval using motif cooccurrence matrix (MCM). The MCM is derived from the motif transformed image. The whole image is divided into 2 £ 2 pixel grids. Each grid is replaced by a scan motif that minimizes the local gradient while traversing the 2 £ 2 grid forming a motif transformed image. The MCM is then(More)
In this paper, we propose " stable marriages " algorithms based on a novel representation called marriage table. After explaining how properties as global satisfaction, sex equality and stability show in the representation, we define 3 algorithms corresponding to 3 different scans of the marriage table to meet progressively all constraints. The performance(More)
We present a novel image feature descriptor for rotation-ally invariant 2D texture classification. This extends our previous work on noise-resistant and intensity-shift invariant median binary patterns (MBPs), which use binary pattern vectors based on adaptive median thresholding. In this paper the MBPs are hashed to a binary chain or equivalence class(More)
This paper describes a Reconngurable Compute Engine (the Data-Flow Functional Computer, or DFFC) developed at ETCA and dedicated to rapid prototyping of real-time vision automata. The Computer consists of a regular 3D array of very coarse grain application-speciic FPGA called the Field-Programmable Operator Array (FPOA); each FPOA includes 2 Conng-urable(More)
A Temperature and Voltage Measurement Cell (TVM Cell) for VLSI circuits has been developed. It requires less than 1 mm 2 of core area (for a 2 m CMOS technology) and only 4 I/O pins. It can be integrated into any CMOS VLSI circuit. It permits the measurement of the Circuit Die Temperature (T) and its Core Power Supply Voltage (V) while the chip is operated(More)
This paper introduces a direction-sensitive and locally reorientable compact binary tree, called the Z ; tree, for representing digital images. A rotation operation is deened on a subset of its node, called square nodes, to spatially reorganize the four grand children of any g i v en square-node. The goal is to adapt the Z ; tree in order to produce a(More)