JPWO2022056327A5

JPWO2022056327A5 -

Info

Publication number: JPWO2022056327A5
Application number: JP2023516148A
Authority: JP
Publication date: 2023-10-18

Claims

An acoustic analysis system,
an acoustic sensor array configured to receive one or more acoustic signals from a target scene and output acoustic data based on the one or more acoustic signals;
a processor in communication with the acoustic sensor array, the processor comprising:
receiving a plurality of acoustic data sets representing the target scene at different points in time from the acoustic sensor array;
one or more locations within the target scene represented by the plurality of acoustic data sets, the one or more locations being locations of acoustic signals emitted from the target scene; determine the location of
for each acoustic signal, classifying the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal;
configured to generate a cumulative time display image for presentation on a display based on the plurality of acoustic data sets ;
An acoustic analysis system wherein acoustic signals classified as intermittent acoustic signals are distinguished from acoustic signals classified as continuous acoustic signals in the cumulative time display image.

For each of the acoustic signals classified as an intermittent acoustic signal, the processor determines one of the acoustic parameters of the intermittent acoustic signal in each of the plurality of acoustic data sets in which the intermittent acoustic signal is present. The acoustic analysis system of claim 1, further configured to calculate the normalized intermittent acoustic signal by averaging one or more.

For each of the acoustic signals, the processor:
Claim: further configured to determine periodicity of the acoustic signal, and to classify the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal based on the periodicity of the acoustic signal. 2. The acoustic analysis system according to 1 or 2 .

For each of the acoustic signals, the processor:
analyzing the acoustic signal to determine a ratio of the time the acoustic signal is present to the time the acoustic signal is absent in the plurality of acoustic data sets, and adding the acoustic signal to the plurality of acoustic data sets. Claims 1 to 3 further configured to classify the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal based on the ratio of the time during which the acoustic signal is present and the time during which the acoustic signal is absent. The acoustic analysis system according to any one of .

The processor,
receiving a log of events including events that occurred in the target scene during the time that the acoustic dataset was captured; and associating one or more events in the log of events with acoustic signals in the acoustic dataset. The acoustic analysis system according to any one of claims 1 to 4 , further comprising:

The processor,
generating real-time acoustic image data based on acoustic data received from the acoustic sensor array;
6. The apparatus of claim 1, further configured to generate a real-time display image including the real-time acoustic image data, and to switch presentation on the display between the cumulative time display image and the real-time display image. The acoustic analysis system according to any one of the items.

A method of generating an acoustic image, the method comprising:
receiving a plurality of acoustic datasets each representing a target scene at a different point in time;
determining one or more locations within the target scene from which the acoustic signal was emitted;
classifying the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal;
generating a cumulative time display image based on the plurality of acoustic data sets ;
A method wherein acoustic signals classified as intermittent acoustic signals are presented in the cumulative time display image in a manner that distinguishes them from acoustic signals classified as continuous acoustic signals.

Generating the cumulative time display image based on the plurality of acoustic data sets ,
For each of said acoustic signals classified as an intermittent acoustic signal, normalized intermittent 8. The method of claim 7 , comprising calculating an acoustic signal.

The step of generating the cumulative time display image further comprises determining one or more locations of interest within the target scene, wherein generating the cumulative time display image includes determining one or more locations of interest within the target scene. 9. The method of claim 7 or 8 , comprising visually distinguishing from.

receiving electromagnetic image data representative of electromagnetic radiation from the target scene;
10. The method of claim 9 , further comprising determining the one or more locations of interest within the target scene based on the electromagnetic image data.

for each of the acoustic signals, further comprising determining periodicity of the acoustic signal, wherein classifying the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal is based on the periodicity of the acoustic signal. , the method according to any one of claims 7 to 10 .

further comprising determining a ratio of the time each acoustic signal is present in the plurality of acoustic data sets to the time the acoustic signal is absent, and classifying the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal. 12. A method according to any one of claims 7 to 11 , wherein determining is based on the ratio of the time when the acoustic signal is present and the time when the acoustic signal is absent in the plurality of acoustic data sets.

Generating a real-time display image based on the latest acoustic image dataset of the plurality of acoustic image datasets;
A method according to any one of claims 7 to 12 , further comprising switching presentation in a display between the real-time display image and the cumulative time display image.