PROCEDE D'IMAGERIE TRIDIMENSIONNELLE, INSTALLATION METTANT EN OEUVRE UN TEL PROCEDE, PROCEDE DE CONFIGURATION D'UNE TELLE INSTALLATION, PROGRAMME D'ORDINATEUR METTANT EN OEUVRE UN TEL PROCEDE

摘要

The invention concerns a method for three-dimensional imaging of a volume to be imaged executed by several computers connected in parallel: an emitting machine (13c) transmits to a network enabling transfer rates at least equal to 100 megabits per second (Mb/s), data delivered by an acquisition system corresponding to a set of projections of the volume, acquired in accordance with various incidences. The data are duplicated inside the network towards a plurality of processing machines (14a, 14b), which receive each the received data. In each processing machine the correspondence between the received data and the transmitted data is ascertained. Each processing machine processes the data to reconstruct a fraction of the three-dimensional image of the volume to be imaged. At the end of the acquisition, and hence of the inline real-time reconstruction, a dedicated machine collects the set of fraction of images to reconstitute the three-dimensional image. The resulting improved systolic processing compared to the known multicast MPI (message passing interface) enables the speed, reliability and flexibility of the real-time tomographic restitution of moving small laboratory animals to be increased at a lower cost.