| abstract |
The invention discloses a method and device for acquiring sports information. Perform frequency domain conversion on the detection signal of the vibration propagating in the medium to obtain the frequency domain signal, and then remove the signal outside the set vibration speed range in the frequency domain signal, that is, only retain the vibration signal, and then propagate along the set vibration Direction to get the position time chart. There is no need to perform motion estimation on the propagation of vibration through complex calculations, but only by processing in the frequency domain to determine the presence or absence of vibration, a position and time map can be obtained, which is an efficient way to obtain motion information. |