Signal processing apparatus

Details Signal processing apparatus Signal processing apparatus

G - Physics

01

D

G01D 3/032 (2006.01) G01N 27/90 (2006.01) G06T 1/00 (2006.01)

Patent

CA 2279564

A signal processing apparatus according to the present invention includes a 2-dimensional conversion processing section, a 2-dimensional emphasis and attenuation processing section and a 2-dimensional smoothing processing section. The 2-dimensional conversion processing section maps an observation signal in a first coordinate system onto a second coordinate system to output a 2-dimensional converted signal. The observation signal includes a detection object component and a noise component to be attenuated, the noise component being composed of a first noise component and a second noise component. The 2-dimensional emphasis and attenuation processing section attenuates the first noise component to emphasize the detection object component and outputs a 2- dimensional filtered signal in which the detection abject component is emphasized. The 2-dimensional smoothing processing section attenuates the second noise component contained in the 2-dimensional filtered signal, and outputs a 2-dimensional smoothing signal, whereby a detection object can be detected based on the 2-dimensional smoothed signal.

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