Object motion estimation device and process in animated successive pictures subdivided in bidimensional image element blocs

Abstract

Abstract Object motion estimation process applied to bidimensional blocks scanned successively, within an image, comprising the determination of a set of error data and a motion vector for each current block, and comprising the creation of so-called "regions" formed from a block or from several adjacent blocks, each region having a single motion vector. This process is implemented via a device which includes a coherence structure with: memory modules (M1, M4, M5) for storing respectively the error data sets of the current block, the regions already formed, and their respective index numbers; work modules (R2 and R3) formed by two fixed delays to be applied to the error data sets for the left and upper regions, candidates for attachment to the current block; computational modules (11, 12) for comparing the error data sets of the current block and those of the said candidate regions, and possibly deciding in favour of attachment as a function of predetermined criteria; multiplexers (MUX1, MUX2, MUX3) for routing the data between the various modules; and a module (10) for monitoring the routing and the computations. Application : High-definition television, coding device. <IMAGE>

Inventors

• 👤 Paul Bazzaz

Bibliographic Details