Patent ID: 11971694
Assignee: NEC CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An abnormal-sound detection device comprising:
at least one memory storing instructions; and
at least one processor configured to access the at least one memory and execute the instructions to:
extract a feature point of a diagnosis object from a video of the diagnosis object captured by a camera;
identify an operation range of the diagnosis object, based on a movement range of the extracted feature point;
sense a sound in which an abnormality has occurred from among sound collected by a microphone;
identify, based on the collected sound, a generation position of the sound in which the abnormality is sensed; and
determine, based on the operation range and the identified generation position, whether the sound in which the abnormality is sensed is derived from the diagnosis object or derived from another element.