Patent ID: 7043465

Claim:
A method for localization of a shape in a space represented by pixel data forming a multidimensional space i, j, evolving with time, and represented at a succession of instants T, wherein the data is associated with a plurality of parameters {A, B, . . . } in the form of digital signals {DATA(A), DATA(B), . . . } composed of a sequence {A ijt , B ijt , . . . } of binary numbers of n bits associated with synchronization signals defining the instants T of the space and the position i, j in the space, at which the signals {A ijt , B ijt , . . . } are received, the method comprising, in a processing device: a) receiving the pixel data; b) identifying a main region of interest of the space based on a statistic criterion applied to one of said parameters, the identified region having a center of gravity; c) repeating step b) using the pixel data associated with the main region of interest so as to identify one or more other regions inside the main region; d) for each identified region of interest, incrementing a counter for each consecutive valid frame; and e) recording the center of gravity of each identified region of interest for each valid frame, wherein a counter is associated with each identified region of interest, and a counter value is incremented by one unit at each of successive frames from which the region of interest is identified, and the value of each counter is reset to the first frame for which the corresponding region is not identified.