CN1695174A - Method, device and product for reading identification information from, for example, stacks of chips - Google Patents
Method, device and product for reading identification information from, for example, stacks of chipsDownload PDFInfo
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- CN1695174A CN1695174ACN 03820164CN03820164ACN1695174ACN 1695174 ACN1695174 ACN 1695174ACN 03820164CN03820164CN 03820164CN 03820164 ACN03820164 ACN 03820164ACN 1695174 ACN1695174 ACN 1695174A
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Abstract
Description
Background of invention
Invention field
The present invention is relevant with show business, and is specifically, relevant with the robotization that machine vision is used for the recreation such as making a bet is monitored.
Background technology
The performance height of machine vision applications depends on the picture quality of pattern-recognition.Usually, mode standard or image library are stored in the computer-readable memory,, reach pattern match so that realtime graphic is compared.Criterion relatively can be that color, shape, size or other can be used for obvious with other other features of object phase region in an object and the same digital scene.Therefore, in a digital scene with some objects, have when being used for mating with filtering other uniqueness signs that may mate, can obtain good pattern match at the object of being paid close attention to.In order to obtain good result, need strictly control image-forming condition (for example, illumination, background etc.), with numerous factors of the performance of this technology of limitations affect.
Show business is rendered as a kind of application of uniqueness concerning machine vision, because the public place of entertainment running has pure dynamic property.Usually, each table for game provides a unique visual environment that is different from other table for games in the public place of entertainment.Make this situation further complicated be that visual environment on any one table for game is constantly to change.For example, because near recreation and/or eat fruit machine and show that for example making, the illuminating position of table for game constantly changes.In addition, the visual background of table for game for example because have in a period of time that different people is trapped among around the table for game, the moving and/or on the different time table for game, putting the different article such as beverage, extra chip, currency of these people and constantly changing.
From machine vision, these and some other factors make the visual environment of public place of entertainment almost uncontrollable.Usually need obtain consistent result from machine vision, in show business, need a kind of mode especially and obtain consistent result, even in uncontrollable like this visual environment, work from machine vision.
Brief summary of the invention
The article that oriented lamp that reading system use of the present invention is shone and the need such as a pile chip read.Reading system can use the light in the non-visible part such as infrared (IR) in the electromagnetic spectrum.This reading system can comprise one or more irradiation sources, and these irradiation sources are placed in the chip tray in one embodiment.This reading system can comprise one or more imagers, also is placed in the chip tray in one embodiment.Reading system can frequency of utilization selective light lens and/or the light filter such as bandpass optical filter.The article that need read wherein can have with characteristic frequency selects adjuvant or material (for example IR absorbing additives) information encoded.Such adjuvant or material for example can be rendered as organic or inorganic dyestuff or pigment, are coated in or add the edge of game chip.
Brief Description Of Drawings
In the accompanying drawing of this explanation, identical label institute target is similar ingredient or action.The size of each ingredient in the accompanying drawing and relative position are not necessarily drawn in proportion.For example, the shape of each ingredient and angle are not drawn in proportion, and wherein some are also arbitrarily amplified and located, so that figure is more clear.In addition, the concrete shape of shown these ingredients is not that the true form that means these ingredients comes to this, and just is used for making these accompanying drawings to seem clear more.In these accompanying drawings:
Fig. 1 comprises the skeleton view of the environment of a reading system for illustration, and this environment is rendered as at one and comprises the form of playing on the table for game of a chip tray;
Fig. 2 is the front top right side isometric of chip tray;
Fig. 3 is the cut-open view along thehatching line 3 of the chip tray of Fig. 2, illustration be installed in some imagers in the chip tray;
Fig. 4 is the top view of table for game, illustration the light coverage of the imager among Fig. 3;
Fig. 5 is the cut-open view along thehatching line 5 of the chip tray of Fig. 2, illustration be installed in some irradiation sources in the chip tray;
Fig. 6 is the top view of table for game, illustration the illumination coverage of the irradiation source among Fig. 5;
Fig. 7 is with the chip reading system of a stacks of chips of top light irradiation and the synoptic diagram of the imager of the image of catching the exposure stacks of chips;
Fig. 8 shines the chip reading system and the light filter of the image of catching the exposure stacks of chips and the synoptic diagram of imager of a stacks of chips for the directional light with special frequency band; And
Fig. 9 shines the chip reading system and the imager of the image of catching the exposure stacks of chips and the synoptic diagram of electronic filter of a stacks of chips for the directional light with special frequency band.
Detailed description of the invention
In the following description, some details have been provided, so that can thoroughly understand each embodiment of the present invention.Yet the personnel that are familiar with this technical field are appreciated that the present invention can realize under the situation of these details not having.Under some other situation, the well-known structure related with lens, optical filtering, irradiation source, power supply, scanner, imager, Flame Image Process and filtering and so on do not illustrate or describes in detail, to avoid unnecessarily making the explanation to embodiments of the invention smudgy on the contrary.
Unless linguistic context needs, in whole instructions and claims thereafter, speech " comprises " and synonym needs to be interpreted as " including but are not limited to: " on " including " meaning of opening.
Here the title that is provided just for convenience, rather than the expression scope of patent protection of the present invention or the extension that are proposed.
Fig. 1 shows a kind of game operator being employed by the public place of entertainment orbanker 12 and client orplayer 14,16 play the recreation of 21 points (blackjack) on table for game 10 situation.Though with 21 o'clock as an example, here the principle that is disclosed is applicable to various recreation of making a bet at large, only lifts a few examples, such as shake the elbows, the Card Games, roulette.
During playing,banker 12 is taken out board 19 from board boots 20.Banker 12 can be got board one by one in board boots 20, also can take out whole secondary board 18 from board boots 20, deals out the cards with hand.Many players 14,16 appreciatebanker 12 and hold the recreation impression that deck 18 is dealt out the cards rather than get board one by one from board boots 20.
Afterplayer 14,16 was placed on chip 22 their circle of making a bet separately and initially makes a bet in 24,banker 12 was issued two ventricumbent boards of player (" dark board ") 30 and issues herself a ventricumbent board 32 and a supine board 34 (" bright board ") 34 from deck 18.Player 14,16 can accept additional board (" asking for board ") from this deck 18, be no more than " 21 point " so that total pip of their Yarborough is big as far as possible, and wherein face card is used as 10 points, and A can be used as or 11 points at 1 by holder'sselection.Banker 12 also attempts to reach " 21 point " and is no more than, and wants board though rule requiresbanker 12 will get a vang usually when possessing proficiency " soft 17 points ".Player 14,16 can be after having sent out a hand board 30-34 annotates (chip 22) according to them to facing of own this board and the banker coloured silk that 34 understanding changes them of registering the license.For example,player 14,16 can " want board " or " counting ", also can " double " or " insuring ".
When one innings " board " or game over,banker 12 eats into color notes chip 22 and pays for the chip of winning to the winner from the loser.The chip of winning calculates by the odds of recreation and the quantity of wager chip 22.Defeated chip is exactly the quantity of wager chip 22 usually.Banker 12 will eat the wager chip of into " collecting " from the loser in other words 22 and put into a table for game memory disc that is rendered as chip tray 36.Banker 12 is paid for fromchip tray 36 usefulness chips 38 and gives the winner.Chip tray 36 has series of grooves usually, and size is made and can be accommodated chip 38, holds the chip of different value usually with different grooves.The victory or defeat of public place of entertainment on table for game 10 represented in the change ofchip tray 36 content chips.Therefore, safeguard that the quantity of chip 38 in thechip tray 36 and the accurate statistics of value can help public place of entertainment that its running is managed.Many publics place of entertainment allowbankers 12 on table for game 10 with the valuable article 41 of exchange chips such ascurrency.Banker 12 deposits in valuable article 41 on the table for game 10 or near the case 40.Periodically, for example banker in shifts the time, the content of case 40 must conform to the content ofchip tray 36, has distributed quantity and has been worth correct chip determining.
Fig. 2 showschip tray 36 in moredetail.Chip tray 36 shown in Figure 2 comprises upper and lower two parts 110,112, by dividingplate 114 separately.Top 110 comprises achip loading end 116, has some sizes and size to make thegroove 118 that can hold chip 38 (Fig. 1) above.Sidewall 120 extends downwards fromchip loading end 116, forms the shell that four sides are arranged, and is used for holding the recreation tracking and the light of chip watchdog subsystem 56, electric assembly.When using on being placed on a table for game 10, thefront portion 122 ofsidewall 120 is towardsplayer 14,16, and theback portion 124 ofsidewall 120 is towards banker 12 (Fig. 1).The front portion 122 a little higher thanback portions 124 ofsidewall 120,chip loading end 116 is downward-sloping slightly from the front to the back side.
The bottom of eachgroove 118 vertically has a window 126.Perhaps, also can be thatwindow 126 is opened a side at groove 118.Window 126 comprises thebaffle plate 128 of a light color, is used for preventing thatplayer 14,16 from seeing that recreation is followed the tracks of and the interior lights of chip watchdog subsystem 56, electric device and provide environmental protection for these assemblies of subsystem 56.
Fig. 3 shows the imager 152 in the shell that asidewall 120 that is configured in bychip tray 36 forms, and is used to provide about 180 ° scene of the game table 26 inchip tray 36 fronts.In this embodiment, imager 152 comprises 9 zone C MOS color sensor C1-C9, certainly imager 152 also can be with lacking some or more sensors again.CMOS color sensor C1-C9Visual field 154 is separately respectively arranged.Imager 152 can adopt other image-capture device, but zone C MOS color sensor C1-C9Be particularly suitable for chip 38 on the desktop 26 of table for game 10 and board (such as wager chip 22 and the board 30-34 that sends) imaging.CMOS color sensor C1-C9Can be installed in the aperture separately 156 that forms on thefront portion 122 of thesidewall 120 under the dividingplate 114, also can aim at aperture 156 separately.CMOS color sensor C1-C9A low-angle view (about 15 °) of game table 26 respectively is provided.This makes CMOS color sensor C1-C9Can distinguish height (edge that comprises each chip) and any board 30-34 on the table of each player's 14,16 stacks of chips 22.Low-angle has also reduced the influence of the shade related with top light usually.Color sensor C1-C9Produce the table for game view data, handle for a proper circuit such as microprocessor, digital signal processor or special IC (ASIC).
Fig. 4 shows according to 9 CMOS color sensor C1-C9The synthetic visual field that visual field 154 separately is synthetic makes the imager 152 basically can be to the whole desktop imaging inchip tray 36 fronts.Therefore, CMOS color sensor C1-C9Can be toplayer 14,16 wager chip 22 imagings.By imaging between district by district, recreation is followed the tracks of and chip watchdog subsystem 56 just can detect the change of the coloured silk notes 22 that descend.
Opening 60 on the desktop 26 of table for game 10 can holdchip tray 36, makes top 110 stretch out game table and stretch under the desktop of table for game 10 bottom 112.The dividingplate 114 ofchip tray 36 is positioned at a segment distance on the game table 26.With zone C MOS color sensor C1-C9Be configured in dividingplate 114 times, make thatplayer 14,16 can't see color sensor C whenchip tray 36 is on the table for game 101-C9Or aperture 156.Dividingplate 114 got rid of also that top light causes dazzle, thereby strengthened CMOS color sensor C1-C9Image capture capabilities.
Fig. 5 shows anirradiator 252 that is configured in the shell that is formed bychip tray 36sidewalls 120, is used to provide about 180 ° scene of the game table 26 before the chip tray 36.In this embodiment, irradiator 152 comprises 9 directed IR light emitting diodes (LED) I1-19, lighting device 152 can be used more still less or more more arbitrary sources certainly.IR LED I1-I9Exposure field 254 is separately respectively arranged.Irradiator 252 can be with other light source, but for directed IR LED I concerning wager chip 22 imagings1-I9Be particularly suitable for.LED I1-I9Can be installed in the aperture separately that forms on thefront portion 122 of thesidewall 120 under the dividingplate 114, also can aim at aperture separately.LED I1-I9A low-angle view (about 15 °) of game table 26 respectively is provided.This makes LED I1-I9Can shine the whole height of each player's 14,16 stacks of chips 22, comprise the edge of each chip.Low-angle has also reduced the influence of the shade related with top light usually.
Fig. 6 shows according to 9 IR LED I1-I9The synthetic irradiation area thatexposure field 254 separately is synthetic makes the imager 152 basically can be to whole desktop imagings before the chip tray 36.Therefore, LED I1-I9Shineplayer 14,16 wager chip 22.
Below design has improved significantly such as MP21TMThe result of the table for game imaging system of table for game imaging system (coming from the Mindplay of Washington state Bellevue) and so on.Can conceive the result who improves general machine vision applications with these.
1.IR irradiation
By a non-visible light irradiation source is placed in the chip tray, facing to making a bet position and stacks of chips, system can obtain a lighting condition with environment and public place of entertainment floor and change irrelevant light source.This is particularly useful in obtaining to carry out the controlled illumination environment of pattern match, can produce the shadow-free irradiation of target stacks of chips and a non-invasion light source hidden and that do not influence player's mood is provided.The directional illumination of stacks of chips has been eliminated usually owing to shade situation that top light, stacks of chips are given prominence to, player's hand occurs and the bad imaging situation that other people produce for phenomenon.This has solved coloured silk has been formed picture particularly forms picture to the coloured silk that is rendered as stacks of chips a powerful and influential problem.Adopt the IR directional light sources that some other benefits are provided.Most of visual identity technology depend on the colour or the monochrome contrast of the chip edges that is used for detecting.Because the inhomogeneous colour that causes of shade and other illuminations disappears and takes off and/or the imaging of bad contrast causes mis-behave, even can not identifying object.
2.IR chips/absorption
This technology embeds the adjuvant of special-purpose absorbing IR the edge of amusement chip as organic or inorganic pigment.Reading system comprise that a monochrome or colored CCD/cmos sensor, identical bandpass filter that is chosen to wavelength and IR source lighting, visible light light cutoff filter mirror and some produce " black " response with the IR light that is absorbed in some positions selectively and with the chip of the irrelevant IR material class number of visible light.The result is that sensor will be to sending catoptrical nonabsorbable chip edges (" in vain " response) imaging, and a succession of chip transition into the value that identifies chip is read at the edge (" deceive " response) that will be filled with absorbing material.This method has been improved the contrast difference between the chip transition by visible chip colour switching is become gray level expressing.Absorb pigment can change over any color black (absorption) from visible response (red/green/indigo plant) IR reading.Therefore, chip has a secret responses that is different from visible multicolour pattern, and because contrast increases, imaging good (shadow-free irradiation), has improved machine-readable coding (or chip edges).
3. the IR forming monochrome image and the light object filter technology that are used for automatic mode identification
The object that this technical design becomes to make the contrast maximum between the object of being paid close attention to and do not paid close attention to by the processing of light conversion removal of images.Reading system can use monochrome or colored CCD/cmos sensor (can adopt any detecting device, no matter be that linearity scans or the zone scans), bandpass optical filter, visible light stop that light filter (only being privacy mask, optional), directed IR light source (stacks of chips sight line) and up conversion or down conversion IR fluorescer or other have the material of wavelength conversion characteristic.
Chip is embedded with the material with the characteristic that makes wavelength up conversion or down conversion.In fact, if a source is shone with a wavelength (for example being 900nm), material will be launched a wavelength that is higher or lower than the exposure wavelength.Only when the bandpass optical filter of sensor-level is combined, resulting image will only illustrate the position with transmitting response this conversion and one.All comprise that other objects to source irradiation reflection will obtain reducing even eliminating greatly.From Flame Image Process, this optical means has been saved some and has been used for the filtering meeting and makes the software identification filtrator that does not need object of identification software fascination.Only embedding secret responses at concealment part also is useful to increasing security.
The some of them advantage of this method is: the non-visible light part such as IR that 1) irradiation is transformed to electromagnetic spectrum; What 2) stacks of chips is carried out is directed and unblanketed irradiation; 3) bright, secretly become the contrast of pixel high, therefore contrast the position near desirable black/white imaging; And 4) secret wavelength response provides added security.
Fig. 7 shows an embodiment with top light irradiation stacks of chips.As described above, irradiation can utilize frequency selectivity to improve resolution.For example, can select irradiation in conjunction with being used for the fluorescent characteristic of material of mark chip.In addition, for example, irradiation can be with the non-visible light part such as IR of electromagnetic spectrum, with reduce to around or the susceptibility of ambient lighting.
Fig. 8 shows an embodiment who adopts directional illumination, such as using the one or more LED I that are installed in the chip tray 361-I9(Fig. 2-6).This embodiment also utilizes frequency to select.For example, mainly be to provide irradiation by generation at the LED of the IR of electromagnetic spectrum light partly.Select light filter to come the filtering visible light with a frequency, and allow IR light pass through.In addition, select material (for example IR absorbing material) that chip is made marks with frequency.
Fig. 9 shows a similar embodiment with Fig. 8, but with the fluorescence selectivity of marker material catoptrical frequency is offset up and/or down.This embodiment has also used a bandpass filter in the imager capture circuit.
More than explanation has proposed a kind of irradiation and has read the non-invasion system of mark from the article such as stacks of chips.More detailed situation can be referring to the following U.S. Patent application that transfers same assignee: the application No.60/130 that on April 21st, 1999 proposed, 368; The application No.09/474 that on Dec 30th, 1999 proposed, 858; The application No.60/259 that propose January 4 calendar year 2001,658; The application No.09/849 that propose May 4 calendar year 2001,456; 09/790,480 of proposition on February 21 calendar year 2001; The application No.60/300 that propose June 21 calendar year 2001,253; The application No.10/061 that on February 1st, 2002 proposed, 636; The application No.60/296 that propose June 8 calendar year 2001,866; The application No.10/017 that propose Dec 13 calendar year 2001,276; The application No.10/017 that on February 8th, 2002 proposed, 227; The application No.60/354 that on February 6th, 2002 proposed, 683; The application No.60/354 that on February 5th, 2002 proposed, 730; The application No.60/406 that on August 27th, 2002 proposed, 246; And the application No.10/358 of proposition on February 4th, 2003,999, these applications are here all classified as with reference to being quoted.
Though some specific embodiments and the example of method of the present invention here just have been described illustratively; but as the personnel that are familiar with relevant technologies are understandable, under the situation that does not deviate from spirit of the present invention and scope of patent protection, can make the modification of various equivalences.The principle of the present invention that is here provided can be applied to the other machines vision system, the exemplary game machine vision system of not necessarily top institute general description.For example, reading system can be followed the tracks of the article except game object, and/or can follow the tracks of the game object such as playing cards except chip.
This system can have the architecture different with illustrated embodiment, and some functions may be incorporated in together and/or some functions can be saved.This system can use some automation components that disclosed for some functions, and can rely on manual methods for some other function.This system is can be by concrete game environment more more concentrated or more disperse.
Above each illustrated embodiment can be combined into certain other embodiments.If necessary, can make amendment,, provide other embodiment of the present invention with system, circuit and the design of adopting each patent, application and publication to be disclosed to certain situation of the present invention.
Can make these and other some changes to the present invention according to above detailed description.Put it briefly, in the following claims, these used words should be not to limit the present invention to these specific embodiments that disclosed in this instructions and claims with regard to literal interpretation, but should be interpreted as comprising according to described all imagings of these claims and illuminator and method.Therefore, these embodiment that the present invention is not limited to be disclosed, scope of patent protection of the present invention is given by following claims fully.
Claims (42)
Translated fromChineseApplications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40624602P | 2002-08-27 | 2002-08-27 | |
| US60/406,246 | 2002-08-27 | ||
| US10/457,053 | 2003-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1695174Atrue CN1695174A (en) | 2005-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03820164PendingCN1695174A (en) | 2002-08-27 | 2003-08-27 | Method, device and product for reading identification information from, for example, stacks of chips |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1695174A (en) |
| PT (1) | PT1532594E (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9378605B2 (en) | 2007-09-13 | 2016-06-28 | Universal Entertainment Corporation | Gaming machine and gaming system using chips |
| CN108055828A (en)* | 2015-08-03 | 2018-05-18 | 天使游戏纸牌股份有限公司 | Board game management system, entertainment currency, inspection device, entertainment currency management system |
| CN110719800A (en)* | 2017-01-24 | 2020-01-21 | 天使游戏纸牌股份有限公司 | Chip recognition system |
| CN112513946A (en)* | 2018-05-09 | 2021-03-16 | 博彩合作伙伴国际公司 | Count the game currency |
| CN113413584A (en)* | 2015-08-03 | 2021-09-21 | 天使集团股份有限公司 | Medal, inspection device, method for manufacturing medal, and management system for table game |
- 2003
- 2003-08-27CNCN 03820164patent/CN1695174A/enactivePending
- 2003-08-27PTPT03791914Tpatent/PT1532594E/enunknown
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9378605B2 (en) | 2007-09-13 | 2016-06-28 | Universal Entertainment Corporation | Gaming machine and gaming system using chips |
| CN108055828A (en)* | 2015-08-03 | 2018-05-18 | 天使游戏纸牌股份有限公司 | Board game management system, entertainment currency, inspection device, entertainment currency management system |
| CN113413584A (en)* | 2015-08-03 | 2021-09-21 | 天使集团股份有限公司 | Medal, inspection device, method for manufacturing medal, and management system for table game |
| CN110719800A (en)* | 2017-01-24 | 2020-01-21 | 天使游戏纸牌股份有限公司 | Chip recognition system |
| CN110719800B (en)* | 2017-01-24 | 2023-07-04 | 天使集团股份有限公司 | Chip Identification System |
| US11842595B2 (en) | 2017-01-24 | 2023-12-12 | Angel Group Co., Ltd. | Chip recognition system |
| US11941942B2 (en) | 2017-01-24 | 2024-03-26 | Angel Group Co., Ltd. | Chip recognition system |
| US11954966B2 (en) | 2017-01-24 | 2024-04-09 | Angel Group Co., Ltd. | Chip recognition system |
| US12112596B2 (en) | 2017-01-24 | 2024-10-08 | Angel Group Co., Ltd. | Chip recognition system |
| US12293627B2 (en) | 2017-01-24 | 2025-05-06 | Angel Group Co., Ltd. | Chip recognition system |
| CN112513946A (en)* | 2018-05-09 | 2021-03-16 | 博彩合作伙伴国际公司 | Count the game currency |
Also Published As
| Publication number | Publication date |
|---|---|
| PT1532594E (en) | 2007-03-30 |
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