ROI Tags for Precise Moving-Object Image Masking

The patent uses a tag with a known physical size as a reference copy. The ROI size is determined by comparing the tag's image size in the captured image to its known physical size, eliminating the need for complex distance measurement devices. The tag acts as a built-in scale reference that is automatically captured along with the scene.

The tag contains embedded ROI information including size indications that are self-contained within the tag itself. The tag serves its own measurement function by providing reference information about its physical dimensions, allowing the system to determine ROI size without external measurement devices or complex calculations.

The patent makes the ROI dynamic by associating it with a moving tag rather than a fixed coordinate system. As the tag moves within the scene, the ROI automatically follows the tag's position and updates accordingly. This dynamic approach maintains system simplicity while enabling tracking of moving objects through the tag's movement.

The patent adds the dimension of tag association to the traditional static ROI concept. Instead of defining ROI by fixed image coordinates, the ROI is defined by its relationship to the tag, creating a new dimension of reference that enables both stationary and moving object monitoring through the same mechanism.

The patent implements feedback by continuously detecting the tag's position in each captured image and using that information to update the ROI position. The system reads the tag's current coordinates from the image, compares them to the previous position, and adjusts the ROI accordingly, maintaining precise position control while tracking moving objects.

The patent performs preliminary action by pre-defining the ROI size and position relationship to the tag before tracking begins. The ROI parameters are calculated in advance based on the tag's known physical dimensions and desired monitoring area, establishing a stable reference framework that maintains precision during subsequent tracking operations.

The patent applies preliminary anti-action by implementing verification mechanisms that check tag authenticity before accepting the tag as a valid ROI reference. The system verifies that the tag matches expected characteristics and has not been tampered with, preventing unauthorized or malicious tags from compromising the monitoring system.

The patent replaces physical tag security mechanisms with digital verification methods. Instead of relying on physical tag characteristics that can be copied, the system uses digital authentication and verification protocols to confirm tag legitimacy, making it more difficult to abuse while maintaining ease of operation.