System, apparatus and method for automatically tracking a table game

• US 20050026680A1
• Filed: 06/28/2004
• Published: 02/03/2005
• Est. Priority Date: 06/26/2003
• Status: Abandoned Application

• Current Assignee: Tangam Gaming Technology Incorporated
• Original Assignee: Tangam Gaming Technology Incorporated
• Inventors: Gururajan, Prem
• Application Number:
  US10/876,617
• Publication Number:
  US 20050026680A1
• Time in Patent Office: Days
• US Class Current: 463/25
• CPC Class Codes: A63F 1/10 Card holders
• CPC Class Codes: A63F 1/14 Card dealers
• CPC Class Codes: A63F 1/18 Score computers; Miscellaneous indicators time-testing devices G07C
• CPC Class Codes: A63F 2001/0491 having markings on the rear face or reverse side
• CPC Class Codes: A63F 2009/242 Bar codes
• CPC Class Codes: A63F 3/00157 Casino or betting games horse races A63F3/00082
• CPC Class Codes: G07F 17/32 for games, toys, sports, or amusements
• CPC Class Codes: G07F 17/3232 wherein the operator is informed
• CPC Class Codes: G07F 17/3234 about the performance of a gaming system, e.g. revenue, diagnosis of the gaming system
• CPC Class Codes: G07F 17/3241 Security aspects of a gaming system, e.g. detecting cheating, device integrity, surveillance computer security G06F21/00

Abstract

A system automatically monitors playing of a game and gathers data in real time. An overhead imaging system automatically images the game table and provides an overhead view of the game table and/or the dealer'"'"'s chip tray. A lateral imaging system images the gaming area, especially the wagering regions, to provide a lateral view of the chips on the table. An automatic card shoe system dispenses cards and automatically images at least one card immediately prior to its withdrawal from the shoe. A positioning module processes images from the overhead imaging system to automatically track the position of gaming objects such as for example playing cards, chips, currency bills on the gaming table. An identity module processes images from the overhead imaging system to automatically track the identity of gaming objects on the gaming table. A chip identity module processes overhead images of the chip tray and lateral images of the gaming region to automatically determine, the identity and position of gaming chips. A card-shoe software associated with the automatic card shoe system processes signals from the automatic card shoe system to automatically identify the game related value of at least one card immediately prior to its withdrawal from the shoe by a dealer.

Claims

1. A system for collecting data for game events in a gaming region of a gaming table, the system comprising:

a first imager configured for recording a series of overhead images to include a gaming object located on a playing surface in the gaming region, the first imager configured to be focused on the playing surface;

a positioning module configured for coupling to the first imager to receive the overhead images, the positioning module for recognising the gaming object in a selected image of the overhead images and for assigning a position indicator having at least one characteristic point to the recognized gaming object;

the position indicator defined in a coordinate system coupled to the gaming table for locating the recognized gaming object on the playing surface; and

an identity module configured for coupling to the positioning module and for assigning an identity to the recognized gaming object, the identity and the position indicator being the current gaming profile of the recognized gaming object;

wherein the current gaming profile of the recognized gaming object is subsequently used to determine the game event.

2. The system of claim 1, wherein the position indicator of the gaming object includes selected from the group comprising:

a shape descriptor of the gaming object;

a corner point of the gaming object;

a sequence of corner points of the gaming object;

a boundary point of the gaming object;

a sequence of boundary points of the gaming object;

a boundary line of the gaming object;

a bounding polygon around the gaming object;

a point along a vertical axis of the gaming object;

a point along a horizontal axis of the gaming object; and

a point along a diagonal axis of the gaming object.

3. The system of claim 2, wherein the gaming object is selected from the group comprising:

a playing card;

a gaming chip;

a stack of gaming chips;

a wagering piece;

a stack of wagering pieces;

a playing card hand;

a die; and

a currency bill.

4. The system of claim 3, wherein the identity of the gaming object is a game value of each playing card associated with the gaming object.

5. The system of claim 4, wherein the identity of the gaming object includes a rank each playing card associated with the gaming object.

6. The system of claim 4, wherein the identity of the gaming object includes a suite of each playing card associated with the gaming object.

7. The system of claim 3, wherein the positioning module identifies a plurality of the gaming objects as individuals ones of the playing cards, such that each of the playing cards has an individual assigned one of the position indicators.

8. The system of claim 3, wherein the positioning component assigns the position indicator to a plurality of overlapping ones of the playing cards for representing the position of a playing card hand in the coordinate system.

9. The system of claim 2, wherein the identity module identifies a region of interest by the position indicator for the gaming object when it is a playing card.

10. The system of claim 9, wherein optical character recognition is used in the region of interest to determine the identity of the playing card.

11. The system of claim 10, wherein the characteristic point of the position indicator is a corner point.

12. The system of claim 2, wherein the identity module obtains the identity of the gaming object selected from the group comprising:

optical character recognition on a region of interest in the overhead image;

a signal from a RFID coupled to the gaming object;

an identity signal from a card reading system; and

stored gaming object information for a predefined sequence of playing cards as the gaming objects.

13. The system of claim 12, wherein the card reading system includes selected from the group comprising:

a card dispensing shoe, a card shuffling device, an automatic card shuffling device, and a card scanning device.

14. The system of claim 2, wherein the gaming object is a gaming chip.

15. The system of claim 2 further comprising a second imager configured for recording a series of lateral images to include at least one of the gaming chips of a chip stack, the second imager configured to be positioned adjacent to the gaming region and focused on a lateral view of the gaming region.

16. The system of claim 15 further comprising a chip identity module configured for coupling to the second imager to receive the lateral images, the chip identity module for recognizing a value for each of the gaming chips present in the chip stack in a selected one of the lateral images.

17. The system of claim 16, wherein the value for each of the gaming chips is determined by comparing a recognized sequence of regions associated with the gaming chips in the selected lateral image to a stored collection of chip profiles.

18. The system of claim 17, wherein the chip profiles include chip characteristics selected from the group comprising:

color sequences;

color blocks;

color regions;

width to height ratios;

absolute width;

absolute height;

gray scale sequences;

gray scale blocks;

gray scale regions and chip value.

19. The system of claim 17, wherein the chip identity module assembles the sequence of regions from the selected lateral image in a series of substantially horizontal rows for representing the value of each of the corresponding gaming chips in the selected lateral image.

20. The system of claim 17, wherein the chip identity module further includes a region growing algorithm for determining boundaries of each of the regions in the selected lateral image.

21. The system of claim 19, wherein the rows are represented as arcuate sequences of adjacent ones of the regions based on a perspective view of the chip stack in the selected lateral image.

22. The system of claim 15, wherein once the positioning module recognizes the gaming object from the selected overhead image as the chip stack, a chip identity module is triggered to process a selected one of the lateral images corresponding to the recognized chip stack, the chip identity module for recognizing a value for each of the gaming chips present in the recognized chip stack.

23. The system of claim 2, wherein once the positioning module recognizes the gaming object from the selected overhead image as a chip stack, a chip identity module is triggered to assign an RFID signal to each of the gaming chips in the stack as the corresponding identity of each of the gaming chips.

29. The system of claim 1, wherein the gaming object is a gaming chip resident in a chip tray.

30. The system of claim 1, wherein the identity module assigns the identity for each of the gaming chips present in the chip tray by comparing a recognized sequence of regions for each of the chips in the selected overhead image to a stored collection of chip profiles, each of the regions determined from the overhead image by a region growing algorithm, the region growing algorithm for determining boundaries of each of the regions in the selected overhead image.

31. The system of claim 1 further comprising a feedback device coupled to the system for providing instructional feedback to a dealer of the gaming table based on data gathered on the game events associated with the gaming objects.

24. A method for collecting data for game events in a gaming region of a gaming table, the method comprising the steps of:

recording a series of overhead images to include a gaming object located on a playing surface in the gaming region;

recognizing the gaming object in a selected image of the overhead images;

assigning a position indicator having at least one characteristic point to the recognized gaming object, the position indicator defined in a coordinate system coupled to the gaming table for locating the recognized gaming object on the playing surface; and

assigning an identity to the recognized gaming object, the identity and the position indicator being the current gaming profile of the recognized gaming object;

wherein the current gaming profile of the recognized gaming object is subsequently used to determine the game event.

25. A method for collecting data of gaming chips in a gaming region of a gaming table, the method comprising the steps of:

recording a lateral image to include a chip stack, the lateral image being a lateral view of the gaming region; and

assigning a value for each of the gaming chips present in the chip stack of the lateral image by comparing a recognized sequence of regions for each of the chips in the selected lateral image to a stored collection of chip profiles, each of the regions determined from the lateral image by a region growing algorithm, the region growing algorithm for determining boundaries of each of the regions in the selected lateral image.

26. The method of claim 25, wherein the chip profiles include chip characteristics selected from the group comprising:

color sequences;

color blocks;

color regions;

gray scale sequences;

gray scale blocks;

gray scale regions;

width to height ratios;

absolute width;

absolute height and chip value.

27. The method of claim 25 further comprising the step of assembling the sequence of regions from the selected lateral image in a series of substantially horizontal rows for representing the value of each of the corresponding gaming chips in the selected lateral image.

28. The method of claim 27, wherein the rows are represented as arcuate sequences of adjacent ones of the regions based on a perspective view of the chip stack in the selected lateral image.