Face Comparison Device Partial Score Emphasis

The system changes the decision parameter from a binary suspension decision to a continuous comparison score with multiple thresholds. By introducing a second threshold Th2 and creating a intermediate evaluation stage, the system can distinguish between genuine mismatches and temporary obstructions, thereby maintaining reliability while reducing unnecessary suspensions

The authentication decision process is segmented into multiple stages: initial comparison with threshold Th1, secondary evaluation with threshold Th2, and final determination. This segmentation allows the system to handle blocking objects by continuing processing through multiple evaluation stages rather than immediately suspending, thus improving convenience while maintaining accuracy

The single threshold authentication is segmented into a two-stage process with thresholds Th1 and Th2. Scores between Th1 and Th2 represent partial matches that require further evaluation, while scores above Th2 indicate strong matches. This segmentation maintains processing speed by using a quick first threshold while improving precision through a second evaluation stage for borderline cases

The system performs a partial authentication check with Th1 first, then applies a more stringent check with Th2 only when necessary. This partial action approach maintains high processing speed for clear cases while providing enhanced precision for ambiguous cases, avoiding the need for full precision evaluation in all cases