Adjusting areas of interest for motion detection in camera scenes

A system comprising one or more computers and one or more computer storage media storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising:

• providing, for use in detecting events depicted in one or more first images, a first area of interest of a camera;
• obtaining a map of false motion events that were detected using the first area of interest;
• in response to obtaining the map of false motion events, identifying an overlap area between the map of false motion events and the first area of interest;
• determining a second area of interest that includes one or more portions of the first area of interest and excludes at least a part of the overlap area between the map of false motion events and the first area of interest;
• obtaining a map of true motion events that were detected using the first area of interest;
• determining, using the map of true motion events, a performance metric for using the first area of interest to detect events;
• determining, using the map of true motion events, a predicted performance metric for using the second area of interest to detect events;
• determining whether the performance metric for using the first area of interest to detect events and the predicted performance metric for using the second area of interest to detect events satisfy performance criteria;
• and
• in response to determining that the performance metric for using the first area of interest to detect events and the predicted performance metric for using the second area of interest to detect events satisfy the performance criteria, providing the second area of interest for use in detecting events depicted in one or more different, second images instead of the first area of interest.

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:

• providing, for use in detecting events depicting in one or more first images, a first area of interest of a camera;
• obtaining a map of false motion events that were detected using the first area of interest;
• in response to obtaining the map of false motion events, identifying an overlap area between the map of false motion events and the first area of interest;
• determining a second area of interest that includes one or more portions of the first area of interest and excludes at least a part of the overlap area between the map of false motion events and the first area of interest;
• obtaining a map of true motion events that were detected using the first area of interest;
• determining, using the map of true motion events, a performance metric for using the first area of interest to detect events;
• determining, using the map of true motion events, a predicted performance metric for using the second area of interest to detect events;
• determining whether the performance metric for using the first area of interest to detect events and the predicted performance metric for using the second area of interest to detect events satisfy performance criteria;
• and
• in response to determining that the performance metric for using the first area of interest to detect events and the predicted performance metric for using the second area of interest to detect events satisfy the performance criteria, providing the second area of interest for use in detecting events depicted in one or more different, second images instead of the first area of interest.