Gaming Table Tracking via RFID Intermediaries
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Solution Overview
Problem
Existing gaming table monitoring systems face challenges such as processing-intensive optical recognition, occlusion of gaming objects, blurred images, and erroneous detection due to overlapping card hands and similar objects, leading to ambiguous data that hampers accurate game state tracking and progress monitoring.
Innovation Solution
A method and system for tracking game progress on a gaming table that involves recording data frames and game states, identifying game events, evaluating the sufficiency of information, obtaining further information as needed, and creating updated game states based on established rules and events, using a combination of imaging systems, RFID detectors, and data processing algorithms to improve robustness and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If overhead video camera based optical recognition is used for game monitoring, then automated tracking of game activities is achieved, but processing becomes intensive and accuracy decreases due to occlusion, motion blur, and false positives
Solution Approach 1:
The patent introduces RFID tags as intermediary objects attached to playing cards and chip trays. These tags serve as mediators between the physical gaming objects and the detection system, enabling automated tracking through RFID readers rather than relying solely on overhead video camera optical recognition. This intermediary approach resolves the contradiction by providing a more reliable automated tracking mechanism that is not susceptible to occlusion, motion blur, or false positives from visual patterns.
2Productivity
If overhead video camera based recognition system is used, then game monitoring is automated, but gaming objects are occasionally occluded or blurred leading to ambiguous data
Solution Approach 1:
RFID tags attached to playing cards and chip trays serve as intermediaries that enable reliable automated monitoring without the occlusion and blur problems affecting visual systems. The RFID readers can detect these tags regardless of their position or visibility, maintaining both high productivity and reliability simultaneously.
Solution Approach 2:
The patent replaces the mechanical/optical recognition system (overhead video cameras) with an electromagnetic field-based RFID detection system. This substitution eliminates the fundamental limitations of visual systems (occlusion, lighting, motion blur) while maintaining automated monitoring capabilities, thereby achieving both high productivity and reliable data accuracy.
3Loss of information
If overhead camera views are used for tracking, then game progress can be monitored, but false positives occur due to similar objects like patterns on dealer clothing
Solution Approach 1:
RFID tags serve as unique intermediaries attached to specific gaming objects (cards, chip trays). Each tag has a distinct identifier that cannot be confused with patterns on clothing or other visual similarities. This eliminates false positives while maintaining complete tracking information, as the RFID system directly identifies objects rather than relying on visual pattern recognition.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the accuracy and robustness of game state tracking by addressing issues of occlusion, overlap, and ambiguous data, enabling more reliable monitoring and analysis of game events and player activities.
Implementation Method 1
Other systems involving RFID embedded playing cards could produce similar ambiguity relating to position, movement, distinction of separate card hands, dealer mistakes false positives etc.
Data Source
AI summary
The present invention relates to a system and method for identifying and tracking gaming objects and game states on a gaming table. Through the use of imaging devices and identity and positioning modules gaming objects are detected. An identity and positioning module identifies the value and position of cards on the gaming table. An intelligent position analysis and tracking (IPAT) module performs analysis of the identity and position data of cards and interprets them intelligently for the purpose of tracking game events, game states and general game progression. As a game progresses it changes states. A game tracking module processes data from the IPAT module and keeps track of game events and game states. Ambiguity resolution mechanisms such as backward tracking, forward tracking and multiple state tracking may be used in the process of game tracking. All events on the gaming table are recorded and stored on video and as data for reporting and analysis.