Object Queue Change Detection Using Element Information

The patent segments the queue detection process into distinct functional units: a queue detection unit that identifies queue formation, a generation unit that creates element information associating object areas with attributes, and a change detection unit that tracks queue changes. This segmentation enables precise measurement of queue changes while maintaining operational simplicity through automated processing.

The patent introduces element information as an intermediary data structure that associates object areas with object attributes. This intermediary enables the system to track and detect queue changes with high precision by comparing element information across different time points, resolving the contradiction between simple operation and precise measurement.

The change detection unit serves multiple functions: it detects queue formation, tracks queue changes, identifies object additions and departures, and monitors queue configuration. By making this single unit multi-functional, the patent achieves high measurement precision without proportionally increasing device complexity.

The system uses feedback by comparing element information from different time points to detect queue changes. The change detection unit continuously monitors and compares queue states, enabling precise detection of queue configuration changes while using efficient algorithms that prevent excessive complexity.