OBJECT AND MOVEMENT DETECTION

摘要

Motions, positions or configurations off, for example a human hand can be recognised by transmitting a plurality of transmit signals in respective time frames; receiving a plurality of receive signals; determining a plurality of channel impulse responses using the transmit and receive signals; defining a matrix of impulse responses, with impulse responses for adjacent time frames adjacent each other; and analysing the matrix for patterns (22) corresponding to the motion position or configuration.

主权项

1. A method of tracking an object in the presence of one or more other objects in an imaging field comprising transmitting energy into said imaging field, receiving reflected energy from the imaging field, calculating a series of impulse responses at successive time intervals and selecting a subset of said impulse responses corresponding to a continuous motion.