A system for detecting a change in object positioning by processing images by detecting a first entity tagged with a first visually unique identifier, and detecting a second entity tagged with a second visually unique identifier distinguishable from the first visually unique identifier. The system receives a first image, from a first image capturing device, containing the first visually unique identifier and the second visually unique identifier. The system analyzes the first image to determine a distance between the first visually unique identifier and the second visually unique identifier. The system receives a second image containing the first visually unique identifier. The system analyzes the second image to determine a location of the second visually unique identifier relative to the first visually unique identifier to form a distance assessment. Based on the distance assessment, the system determines a change in proximity between the first entity and the second entity.