Systems and methods for detecting light sources

A system comprising:

• an image sensor configured to capture an image including a sub-infrared light emitter;
• a memory configured to store the captured image;
• a processor configured to:
• receive the captured image and apply a filter to a pixel of the captured image to isolate a signal strength of a range of frequencies;
• compare the signal strength of the filtered pixel to an expected signal strength of a background spectra for the range of frequencies;
• and
• as a result of a difference between the signal strength of the filtered pixel and the expected signal strength exceeding a predetermined threshold, identify the pixel as corresponding to a light emitter;
• or
• as a result of the difference between the signal strength of the filtered pixel and the expected signal strength not a predetermined threshold, identify the pixel as not corresponding to a light emitter.

A non-transitory computer readable medium comprising instructions that, when executed by a processor, cause the processor to:

• receive a captured image including a sub-infrared light emitter;
• apply a filter to a pixel of the captured image to isolate a signal strength of a range of frequencies;
• compare the signal strength of the filtered pixel to an expected signal strength of a background spectra for the range of frequencies;
• and
• as a result of a difference between the signal strength of the filtered pixel and the expected signal strength exceeding a predetermined threshold, identify the pixel as corresponding to a light emitter;
• or
• as a result of the difference between the signal strength of the filtered pixel and the expected signal strength not a predetermined threshold, identify the pixel as not corresponding to a light emitter.