Steerable sensor array system with video input
Disclosed is a video controlled beam steering mechanism for an adaptive filter in a sensor array system that receives input from a target and applies an averaging filter and appropriately steers the beam. An adaptive filter is then used if the SNR of the output of the averaging filter reaches a threshold.
1. A sensor array device, comprising:
a sensor array having at least two sensors, the sensor array having one or more channels having as its output audio signals;
a video camera having as its output a video signal and an object tracking reference signal;
a processor receiving the audio signals from the sensor array and the object tracking reference signal from the video camera; and
an adjustable beamformed audio capture region defined by said processor according to the audio signals and the object tracking reference signal, wherein a beam of said adjustable beamformed audio capture region is adjusted based on the audio signals and the object tracking reference signal and applying an adaptive filter to a filtered signal wherein coefficients of the adaptive filter are updated based on the adjusted beam.
2. The sensor array device of claim 1 , wherein said video camera is a motorized camera steerable according to audio signals and the object tracking reference signal.
3. The sensor array device of claim 1 , wherein the sensor array is an audio receiving system and the video camera is an integrated video camera array, the device further comprising a camera motor noise reference signal to further cancel motor noise from the integrated video camera array and the audio receiving system.
4. The sensor array device of claim 2 , wherein the motorized video camera is generally synchronized with the adjustable beamformed audio capture region.
5. The sensor array device of claim 1 , wherein the at least two sensors include at least two microphones.
6. The sensor array device of claim 5 , wherein the video camera is located between the at least two sensors.