Audio sensors for controlling surveillance video data capture
AssigneeWestern Digital Technologies, Inc.
InventorsRamanathan Muthiah, Akhilesh Yadav
Life of this patent
Estimating the term…
Abstract
Systems, video cameras, and methods for using audio sensors to control surveillance video capture are described. A video camera and audio sensor are deployed so that the audio sensor has an audio field that is at least partially outside the field of view of the video camera. The audio sensor collects audio data from the audio field and a controller for the video camera uses audio events from the audio data for modifying the video capture operations of the video camera. Video data is then captured based on the modified video capture operations, such as initiating video capture, changing the video capture rate, or changing the camera position.
Claims20
A system, comprising:
- a video camera configured for a plurality of video capture rates;
- an audio sensor, wherein:
- the audio sensor is configured to collect audio data from an audio field;
- and
- the audio field is at least partially outside a field of view of the video camera;
- and
- a controller configured to:
- receive audio data from the audio sensor;
- determine, from the audio data, an audio event;
- select, responsive to the audio event, a first video capture rate from the plurality of video capture rates;
- modify, responsive to the audio event, a video capture operation of the video camera using the first video capture rate during a first operating period;
- and
- capture, using the video camera, video data based on the modified video capture operation.
A computer-implemented method, comprising:
- collecting, by an audio sensor, audio data from an audio field, wherein the audio field is at least partially outside a field of view of a video camera;
- receiving the audio data from the audio sensor;
- determining, based on the audio data, an audio recognition value;
- determining, from the audio data, an audio event based on the audio recognition value meeting an audio recognition threshold;
- modifying, responsive to the audio event, a video capture operation of the video camera;
- and
- capturing, using the video camera, video data based on the modified video capture operation.
A storage system, comprising:
- a video camera;
- an audio sensor, wherein:
- the audio sensor is configured to collect audio data from an audio field;
- the audio field is at least partially outside a field of view of the video camera;
- and
- the audio sensor comprises at least one directional microphone configured with a direction and an audio range to detect sound sources outside the field of view of the video camera;
- a processor;
- a memory;
- means for collecting, by the audio sensor, audio data from the audio field;
- means for determining, from the audio data, an audio event based on determining a direction of movement of a sound source that intercepts the field of view of the video camera;
- means for modifying, responsive to the audio event, a video capture operation of the video camera;
- and
- means for capturing, using the video camera, video data based on the modified video capture operation.
Dependencies are inferred from the claim text.