πŸ’° USA - Gambling chip recognition system - Google Patents

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The above information has been adapted from: The Official U.S. Casino Chip Price Guide, Fourth Edition by James Campiglia and Steve Wells (Atglen.


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This is how most collectors begin their chip collections. However, casino chips do not have to be sneaked away from the casinos since most casinos would be.


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When playing any game that involves chips as currency, it's vital to know the color-coding that designates what each chip is worth.


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Using this data, a casino could monitor the number of available chips and other statistical information about the activity at individual tables. One of the problems.


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Casino tokens are small discs used in lieu of currency in casinos. Colored metal Casino chip collecting is a part of numismatics, more specifically as specialized Please relocate any relevant information into other sections or articles.


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Image arrays are formed by horizontal rows and vertical columns of pixel values PVr,c. Each pixel in the by matrix of pixels consists of red, green and blue color components. The horizontal and vertical sobel edge detection kernels utilized are illustrated below in tables 2 and Using the horizontal and vertical sobel kernels, we can define a non-directional edge detector for an image F n 1 ,n 2 as shown below in table Using the enhanced gambling chip pile pixel values within the above conventional edge following algorithm, a preset ellipsoidal representation of the edge can be determined. Threshold variance THR is selected as a function of factors affecting the image such as the color of the gaming table. The digitized image is stored in RAM 14 Random Access Memory as arrays of digital data representative of the gambling chip piles. The present invention is a casino gambling chip recognition system that provides for the automatic determination of the number of chips within a stack of gambling chips and the value of each chip within the stack through the use of a classification scheme stored in the computer wherein the classification scheme may include geometry, color and size of a preselected set of chips. The statistics performed are dictated by the chip classification scheme. Gambling chip recognition system 10 is a microprocessor based system which includes a processor 12, data storage 14, an imager 16, a digitizer 18 and a communication link In the embodiment shown in FIG. It describes a gambling chip with a circular bar code to indicate the chips denomination, authenticity and other information. The gambling chip recognition system 10 illustrated in FIG. It is to be understood that the present embodiment can utilize any number of video cameras. There is a need for a system that can determine the value of a chip without it being housed within a special reading device. The results may be communicated to the system user by way of a video monitor 20 or communicated to another system where the resultant information is added to a player database within the main computer 22 where information is collected about individual gamblers. For example, in another embodiment not shown , the imager 16 is a high resolution camera mounted in relation to a gaming table such that a full view of all betting positions are within the camera's field of view. RAM 14 is electrically interconnected to the digitizer The processor 12 accesses the digital data stored in RAM 14 and processes the data in accordance with a computational program to derive from the image the count and class of each chip within the pile. The system also provides the communication of the number and value of chips wagered by players to a main computer for storage in a centralized player data base. The system captures an image of the stack of gambling chips and processes the image by comparing the classification scheme data extracted from each chip within the stack of gambling chips with pre-existing classification scheme data representative of a complete set of gambling chips. Generally all variance values computed for the moving window of 18 pixels will be less than the threshold THR if a pile of gambling chips has not been positioned on the gaming table. The RAM 14 is provided as an adjunct to the digitizer 18 and provides computational access to the digitized image array. The function of the processor would be to derive sets of information unique to counting and determining a chip representation for each chip. If the image array does include pixel values characteristic of a stack of gambling chips, some variance values VARr,c within the captured image will be greater than the threshold THR. It is to be understood that the mean, median and standard deviation are not the only statistics that can be performed. The above mentioned prior art systems are particularly cumbersome in that they require chips to be housed within a particular system and rotated to be read or positioned at the right angle or in a rack so that the information can be taken from the periphery of the chips. In this embodiment the storage medium is random access memory, RAM The processor 12 determines the presence or absence of a stack of gambling chips in the image currently being processed by computing variance values for an array of data stored in RAM The variance values VARr,c are computed by compiling variance for each pixel value PVr,c along a moving window of 18 pixels on every 50 horizontal and vertical pixels and determining that point in the "cross section" where the variance grows to a large value indicative of a statistical edge value. Knowing exactly the length of the time played, amount of money bet and average amount wagered at each bet would be very helpful in providing the right incentives and complimentary benefits free meals, limo, room, etc. The edges of each individual chip is located by applying a sobel edge detection filter in both horizontal and vertical directions. The level of benefits is determined by a player's level of gambling. The number of bits N in a pixel value is dependent upon the classification scheme employed. The gambling chip recognition system images a pile of gambling chips. It can be appreciated that quantifying the three color components for each pixel in accordance with the above described 24 bit format provides up to 2 24 color combinations. The imager 16 may be implemented in a plurality of different ways. The algorithms calculate the mean, median and standard deviation for pixel values making up each chip. Having determining the edges of each individual chip and thereby all pixel values which make up an individual chip, processor 12 subjects the pixel values that make up a chip to conventional statistical algorithms. The camera continuously images all gambling chip stacks at the gaming table betting positions and generates frames of video signals representative thereof. Such a system could cut down on casino expenses by deleting the cost to encode such chips with readable information. As required, detailed embodiments of the present invention are disclosed herein. The digitizer 18 produces two dimensional arrays of digital pixel values representative of the intensity of the pixel values of the video images captured by camera 16 at corresponding discrete pixel locations. One of ordinary skill in the art would recognize that the processing may be performed with both analog or digital processors, and implemented in both software and hardware designs. The present invention relates to a computer implemented system for capturing and processing an image of a stack of gambling chips for counting the number of chips and determining the value of each within the stack. Within each pixel having 24 bits of data, there are 8 bits of data representing blue, 8 bits of data representing green and 8 bits of data representing red. In one embodiment, processor 12 identifies the left edge of the gambling chip stack image by determining the closest column to the left edge of the image array which has a variance value VARnm greater than threshold value THR. The digitizer is electrically connected to the imager 16 and processor The digitizer 18 is controlled by processor 12 and digitizes frames of video signals currently being generated by video camera 16 when commanded by the processor Camera 16 continuously images a stack of gambling chips through its objective lens and generates frames of video signals representative thereof. The gambling chip recognition system imager 16 is comprised of a plurality of video cameras, one for each gambling position on the gaming table. The data storage 14 may be digital or analog, including conventional RAM, conventional disk, or a byte-sized register which passes bytes of digital data to the processor in a manner which permits serial access to the data. Such a system could also be used to determine a player's pre-established credit rating. Variance can be determined values in accordance with the variance value equation described in table 1 shown below:. Each camera being commercially available and using conventional rasters and scanning rates. There is a need for a system that assists gambling operations at casinos in accurately tracking the gambling habits of its customers. The system is designed to count chips and detect counterfeits at a gaming table while the chips are in a rack. It is to be understood that this invention is not limited to the above-mentioned methods for communicating resultant information. The information would be used to classify each chip within a particular set of gambling chips. There is a need for a system that can read a chip that it positioned at any angle on a gaming table in the betting position. It is to be understood that there are other formats and embodiments for complementing an RGB color scheme of pixel data. An image array having pixel values PVr,c corresponding to a stack of gambling chips is illustrated in FIG.

This is a File Wrapper Continuation of application Ser. Casino chip info it is desired to capture a gambling chip pile image, the operator will actuate a foot pedal or casino chip info other control method to place the gambling chip recognition system in capture mode. Therefore, https://opgdota.ru/casino/virgin-casino-bonus-codes-silver-oak.html other statistical analyses can be performed on the pixel values representative of each chip for classification purposes.

The digitizer 18 stores the array of digital data in a data storage Data storage 14 is provided as an adjunct electrically connected to the digitizer 18 to provide computational access to the digitized portions of the resultant image. The chip validating device rotates the chip in order to read the circular bar code. The number of cameras is determined by the number of gambling positions that need to be monitored. In another embodiment, the imager is a single camera having a pan-tilt mechanism employed whereby the camera is repositioned and refocused on each gambling chip pile separately. Utilizing the preset information regarding the height of the chips for a given chip length, the boundaries of each individual chip can be determined as being between the upper, lower, left and right edges. By knowing the value of a player's wagers and their gambling habits, the casino decides which players are to receive complimentary benefits. In the past, gambling chip recognition systems such as that disclosed in U. Using this data, a casino could monitor the number of available chips and other statistical information about the activity at individual tables. The system determines the value of each chip within the stack of gambling chips by way of the comparison and displays the total number of chips counted and their monetary value. After variance values VARr,c have been computed in the above-described manner, they are compared to a threshold variance value THR. It is to be understood that other embodiments of the imager may be utilized and that structural or logical changes to the system may be made without departing from the scope of the present invention. For purposes of illustration and simplifying the description, one camera is described and shown. The count and class of each chip within the pile may be communicated by way of a real time display monitor or to another main system database, via the communication link, where information is collected about individual gamblers. The classification scheme data is used as a reference for a real time captured image of the stack of gambling chips. While processing variance values VARr,c for the selected window of an image array in the manner described above, processor 12 will recognize the fact that it includes stacked gambling chip features since it includes variance values greater than or equal to threshold value THR. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting but rather as the basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system. Referring to the drawings, an embodiment of the gambling chip recognition system is illustrated generally in FIG. Having identified an image array which includes pixel values representative of a stack of gambling chips, processor 12 next determines the edge of each gambling chip which is defined by pixel values including edge characteristic data of a gambling chip stack. The image of the gambling chip pile is processed by the processor to derive from the image the count and class of each chip within the pile. In many situations, the pixel data format is dependent upon the particular CPU Central Processing Unit of the host computer system. The classification scheme employed may be a grey-scale or color digital scale representation having N bits of image data for each pixel. There is a need for a system that can determine the value of gambling chips without encoding the periphery of each chip to enable system determination of its value. The above methods are listed as examples of methods used in the embodiment disclosed in FIG. One of the problems with the system disclosed in U. Assuming that a stack of gambling chips are positioned on the gaming table in the appropriate position when the capture mode has been engaged, data representative of the stack of gambling chips will be stored in RAM 14 as an image array. The processor is a commercially available processor such as an Intel Pentium which permits manipulation of the digitized image to enable the derivation of chip information from the digital representation of the pile of gambling chips. Data characterized in the left edge of the gambling chip stack array is subsequently stored in RAM Using a similar procedure that is sequentially comparing variance values in the right, top and bottom most edges of a gambling chip stack array to a variance value, the right, top and bottom edges of the gambling chip stack array will be determined by processor In the present embodiment, following identification of the portion of the image in which one or more stacks of chips reside, processor 12 performs the identification processes to derive those portions of the image which uniquely contain only the edge information of one or more chips. The present invention is a gambling chip recognition system comprising a processor, data storage, an imager and a communication link. However, it is to be understood that the disclosed embodiment is merely exemplary of the invention, which may be embodied in various forms. Another system having similar problems is disclosed in U. The serial stream of data flowing through the register into the processor may flow in a manner consistent with the computation even though only one byte may be available at each computational cycle.