System calibration using remote sensor data

A system comprising:

• one or more processors;
• one or more computers and one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising:
• obtaining, by the one or more processors, a plurality of first image frames from a camera that is monitoring a specific geographical area from an elevated viewpoint;
• for each first image frame of the plurality of first image frames from the camera that is monitoring the specific geographical area from the elevated viewpoint:
• generating, by the one or more processors, a second image frame from the first image frame from the camera that is monitoring the specific geographical area from the elevated viewpoint by generating vertical projection of the first image frame to a birds-eye view;
• generating, by the one or more processors, a third image frame from the second image frame that is a vertical projection of the first image frame by converting pixel values of the second image frame to produce rasterized pixel data in the third image frame;
• and
• identifying, by the one or more processors, photonic content from the rasterized pixel data in the third image frame;
• determining, by the one or more processors, one or more invariant components classified as stationary in a plurality of third image frames based on the photonic content identified in subsequent third image frames;
• determining, by the one or more processors, one or more position changes of the camera by measuring differences between locations indicated by the rasterized pixel data corresponding to the one or more invariant components between successive third image frames in the plurality of third image frames;
• comparing, by the one or more processors, the one or more position changes of the camera to a threshold value;
• and
• in response to determining the one or more position changes of the camera satisfies the threshold value, adjusting, by the one or more processors, a position of the camera.

A non-transitory computer-readable medium storing software comprising instructions executable by one or more computers which, upon such execution, cause the one or more computers to perform operations comprising:

• obtaining, by one or more processors, a plurality of first image frames from a camera that is monitoring a specific geographical area from an elevated viewpoint;
• for each first image frame of the plurality of first image frames from the camera that is monitoring the specific geographical area from the elevated viewpoint:
• generating, by the one or more processors, a second image frame from the first image frame from the camera that is monitoring the specific geographical area from the elevated viewpoint by generating vertical projection of the first image frame to a birds-eye view;
• generating, by the one or more processors, a third image frame from the second image frame that is a vertical projection of the first image frame by converting pixel values of the second image frame to produce rasterized pixel data in the third image frame;
• and
• identifying, by the one or more processors, photonic content from the rasterized pixel data in the third image frame;
• determining, by the one or more processors, one or more invariant components classified as stationary in a plurality of third image frames based on the photonic content identified in subsequent third image frames;
• determining, by the one or more processors, one or more position changes of the camera by measuring differences between locations indicated by the rasterized pixel data corresponding to the one or more invariant components between successive third image frames in the plurality of third image frames;
• comparing, by the one or more processors, the one or more position changes of the camera to a threshold value;
• and
• in response to determining the one or more position changes of the camera satisfies the threshold value, adjusting, by the one or more processors, a position of the camera.