Adjustable lighting in a stereo-optical counting device based on ambient lighting
Techniques for adjusting a brightness of a field of view of a stereo-optical sensor device (e.g., of a system used to count individuals) are disclosed. According to an embodiment, the stereo-optical sensor device obtains, from a light sensor of the stereo-optical sensor device, a luminosity value of the field of view of the stereo-optical camera. The stereo-optical sensor device determines, as a function of the luminosity value, whether to adjust a brightness of one or more light sources. The stereo-optical sensor device adjusts, in response to the determination, the brightness of the one or more light sources.
1. A computer-implemented method for adjusting a brightness of a field of view of a stereo-optical sensor device having one or more light sources, the method comprising:
obtaining, from one or more light sensors of the stereo-optical sensor device, a plurality of values indicative of a luminosity of the field of view of the stereo-optical sensor device;
determining, as a function of the plurality of values, whether to adjust a brightness of one or more light sources;
adjusting, in response to the determination, the brightness of the one or more light sources;
counting one or more individuals within the field of view of the stereo-optical sensor device;
maintaining historical lighting data including the plurality of values indicative of the luminosity, a timestamp at which the brightness is adjusted in response to the determination, and an amount by which the brightness is adjusted;
predicting, based on the historical lighting data, a point in time at which to subsequently adjust the one or more light sources; and
automatically adjusting the one or more light sources at the point in time.
2. The computer-implemented method of claim 1 , wherein determining whether to adjust the brightness of the one or more light sources comprises evaluating the plurality of values with a specified threshold range.
3. The computer-implemented method of claim 2 , wherein in response to a determination that the plurality of values exceeds the specified threshold range, increasing the brightness of the one or more light sources.
4. The computer-implemented method of claim 2 , wherein in response to a determination that the plurality of values falls below the specified threshold range, decreasing the one or more light sources.
5. The computer-implemented method of claim 1 , further comprising storing data relating to the adjustment in a storage.
6. The computer-implemented method of claim 1 , wherein obtaining the plurality of values comprises:
converting analog input from the one or more light sensors to digital input; and
extracting the plurality of values from the digital input.
7. A computer-readable storage medium comprising instructions, which, when executed on a processor, performs an operation for adjusting a brightness of a field of view of a stereo-optical sensor device having one or more light sources, the operation comprising:
obtaining, from one or more light sensors of the stereo-optical sensor device, a plurality of values indicative of a luminosity of the field of view of the stereo-optical sensor device;
determining, as a function of the plurality of values, whether to adjust a brightness of one or more light sources;
adjusting, in response to the determination, the brightness of the one or more light sources;
counting one or more individuals within the field of view of the stereo-optical sensor device;
maintaining historical lighting data including the plurality of values indicative of the luminosity, a timestamp at which the brightness is adjusted in response to the determination, and an amount by which the brightness is adjusted;
predicting, based on the historical lighting data, a point in time at which to subsequently adjust the one or more light sources; and
automatically adjusting the one or more light sources at the point in time.
8. The computer-readable storage medium of claim 7 , wherein determining whether to adjust the brightness of the one or more light sources comprises evaluating the plurality of values with a specified threshold range.
9. The computer-readable storage medium of claim 8 , wherein in response to a determination that the plurality of values exceeds the specified threshold range, increasing the brightness of the one or more light sources.
10. The computer-readable storage medium of claim 8 , wherein in response to a determination that the plurality of values falls below the specified threshold range, decreasing the one or more light sources.
11. The computer-readable storage medium of claim 7 , further comprising storing data relating to the adjustment in a storage.
12. The computer-readable storage medium of claim 7 , wherein obtaining the plurality of values comprises:
converting analog input from the one or more light sensors to digital input; and
extracting the plurality of values from the digital input.
13. An apparatus, comprising:
a stereo-optical camera;
one or more light sources;
one or more light sensors; and
a controller to:
obtain, from the one or more light sensors, a plurality of values indicative of a luminosity of a field of view of the stereo-optical camera,
determine, as a function of the plurality of values, whether to adjust a brightness of the one or more light sources,
adjust, in response to the determination, the brightness of the one or more light sources;
count one or more individuals within the field of view of the stereo-optical camera;
maintain historical lighting data including the plurality of values indicative of the luminosity, a timestamp at which the brightness is adjusted in response to the determination, and an amount by which the brightness is adjusted;
predict, based on the historical lighting data, a point in time at which to subsequently adjust the one or more light sources; and
automatically adjust the one or more light sources at the point in time.
14. The apparatus of claim 13 , wherein to determine whether to adjust the brightness of the one or more light sources comprises to evaluate the plurality of values with a specified threshold range.
15. The apparatus of claim 14 , wherein in response to a determination that the plurality of values exceeds the specified threshold range, the brightness of the one or more light sources is increased.
16. The apparatus of claim 14 , wherein in response to a determination that the plurality of values falls below the specified threshold range, the brightness of the one or more light sources is decreased.
17. The apparatus of claim 13 , wherein to obtain the plurality of values comprises to:
convert analog input from the one or more light sensors to digital input; and
extract the plurality of values from the digital input.