WO2016000503A1 - 红外投影式台球娱乐系统及其实现方法 - Google Patents

红外投影式台球娱乐系统及其实现方法 Download PDF

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WO2016000503A1
WO2016000503A1 PCT/CN2015/080004 CN2015080004W WO2016000503A1 WO 2016000503 A1 WO2016000503 A1 WO 2016000503A1 CN 2015080004 W CN2015080004 W CN 2015080004W WO 2016000503 A1 WO2016000503 A1 WO 2016000503A1
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billiard
computer
image
infrared
projection
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PCT/CN2015/080004
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English (en)
French (fr)
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乔冰
李姣昂
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乔冰
李姣昂
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Application filed by 乔冰, 李姣昂 filed Critical 乔冰
Priority to GB1622375.2A priority Critical patent/GB2541629A/en
Priority to KR1020167035915A priority patent/KR20170013303A/ko
Priority to US15/104,983 priority patent/US20160310828A1/en
Priority to JP2017518394A priority patent/JP6382445B2/ja
Priority to AU2015283463A priority patent/AU2015283463A1/en
Priority to CA2953848A priority patent/CA2953848A1/en
Priority to EP15815824.6A priority patent/EP3165264A4/en
Publication of WO2016000503A1 publication Critical patent/WO2016000503A1/zh

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
    • A63D15/00—Billiards, e.g. carom billiards or pocket billiards; Billiard tables
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B29/00—Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
    • A63D15/00—Billiards, e.g. carom billiards or pocket billiards; Billiard tables
    • A63D15/20—Scoring or registering devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F3/00—Board games; Raffle games
    • A63F3/00643—Electric board games; Electric features of board games
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F7/00—Indoor games using small moving playing bodies, e.g. balls, discs or blocks
    • A63F7/06—Games simulating outdoor ball games, e.g. hockey or football
    • A63F7/0664—Electric
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/48—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus
    • G03B17/54—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus with projector
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/254—Analysis of motion involving subtraction of images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • G06T7/74—Determining position or orientation of objects or cameras using feature-based methods involving reference images or patches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F9/00—Games not otherwise provided for
    • A63F9/24—Electric games; Games using electronic circuits not otherwise provided for
    • A63F2009/2401—Detail of input, input devices
    • A63F2009/2436—Characteristics of the input
    • A63F2009/2442—Sensors or detectors
    • A63F2009/2444—Light detector
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F9/00—Games not otherwise provided for
    • A63F9/24—Electric games; Games using electronic circuits not otherwise provided for
    • A63F2009/2448—Output devices
    • A63F2009/245—Output devices visual
    • A63F2009/2451—Output devices visual using illumination, e.g. with lamps
    • A63F2009/2452—Output devices visual using illumination, e.g. with lamps as a signal
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F9/00—Games not otherwise provided for
    • A63F9/24—Electric games; Games using electronic circuits not otherwise provided for
    • A63F2009/2448—Output devices
    • A63F2009/245—Output devices visual
    • A63F2009/2461—Projection of a two-dimensional real image
    • A63F2009/2463—Projection of a two-dimensional real image on a screen, e.g. using a video projector
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F9/00—Games not otherwise provided for
    • A63F9/24—Electric games; Games using electronic circuits not otherwise provided for
    • A63F2009/2448—Output devices
    • A63F2009/245—Output devices visual
    • A63F2009/2461—Projection of a two-dimensional real image
    • A63F2009/2469—Projection of a two-dimensional real image of a contour
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10048—Infrared image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30221—Sports video; Sports image
    • G06T2207/30224—Ball; Puck

Definitions

  • the invention relates to a computer software system of infrared technology and projection technology, which can be applied to the entertainment activities of billiard sports such as eight balls, nine balls and snooker in billiard sports, and is suitable for primary, middle and senior billiard lovers, specific Said to be an infrared projection billiard entertainment system and its implementation.
  • Billiards is an entertainment activity with a deep mass base. Because of its simple gameplay, but its variety of changes, and the high level of personal skills, it attracts fans of all levels. However, billiard training is a boring and arduous thing, which makes most people forget. If you can make the single-color table into a colorful and dynamic game, and turn the billiard training course into a billiard game, it will definitely attract more people to join the woman movement.
  • the related related art has a "projection billiard training system and its implementation method" (patent number: ZL201110312228.0). This technology has the following problems:
  • the system must run under the harsh lighting environment, otherwise it will cause shadows due to the change of the direction of the light, which will affect the computer analysis; it will also affect the image capture effect due to the decrease or increase of the light amount; Because the change in color temperature affects the color of the billiards during image capture and so on. This kind of lighting environment is not easy to reach in the billiard clubs where fans often go in, so the system must pay a high environmental cost in order to operate smoothly.
  • the object of the present invention is to provide several problems for the above-mentioned "projection billiard training system and its implementation method", and to provide a billiard entertainment, quick and accurate information for obtaining desktop billiards, less impact by ambient light, and realization cost.
  • the lower infrared projection billiard entertainment system and its implementation method can attract more billiard lovers to join the billiards sport and improve the individual billiards level in various interesting billiard games.
  • an infrared projection type billiard entertainment system including an image acquisition device, a projection device, a computer, and a signal output end of the image acquisition device is connected to an input end of the computer, and an input of the projection device
  • the output end of the computer is terminated by a computer, and is also provided with hollow billiard illumination, infrared fill light, projection hanger and image acquisition equipment hanger; infrared fill light is fixed on the hollow billiard lamp, and its illumination end is The lower end of the hollow billiard lamp is flat;
  • the image collecting device is installed at the bottom end of the hanger of the image collecting device, and the head end portion is aligned with the center of the hollow portion of the hollow billiard lamp and is not lower than the lower end of the hollow billiard lamp;
  • the hollow billiard lamp is hung in the billiards
  • the image capturing device is facing the middle of the billiard table; the projection device is installed together with the computer at the bottom end
  • the projection device employs a projector.
  • the image acquisition device employs a camera with a visible light filter.
  • the image acquisition device may employ a camera with infrared filter and visible light filter switching.
  • the hollow billiard lamp is suspended at least 1 meter above the billiard table.
  • An implementation method of an infrared projection type billiard entertainment system if the image acquisition device uses a camera with a visible light filter, the following steps are included:
  • the computer controlled image capturing device captures moving image information of the billiards on the billiard table, wherein the image information only has a real object illuminated by the infrared fill light, and the visible light projected by the projection device onto the billiard table is filtered by the filter;
  • the image information is transmitted to the computer, and the background comparison analysis and the front frame comparison analysis are performed by the computer, thereby obtaining the information of the position, the motion track and the motion result of the billiard in the image information;
  • the computer controls the projection device to play the corresponding special effect screen on the billiard table according to the movement track of the billiard and/or the result of the billiard movement, and/or play the corresponding sound effect by the computer.
  • An implementation method of an infrared projection type billiard entertainment system if the image acquisition device is a camera with infrared filter and visible light filter switching, the following steps are included:
  • the computer controlled image capturing device switches to the visible light filter, and controls the image capturing device to capture the moving image information of the billiard table billiard, wherein the image information only has the real object illuminated by the infrared fill light, and the projection device projects the billiard table
  • the visible light on it is filtered by the filter;
  • the image information is transmitted to the computer, and the background comparison analysis and the previous frame comparison analysis of the computer are performed, thereby obtaining the information of the position, the motion track and the motion result of the billiard in the image information;
  • the computer controlled image acquisition device switches to the infrared filter, and controls the image capture device to capture image information of the color information of the billiard table with billiards;
  • the computer controls the projection device to play the corresponding special effect picture on the pool table according to the movement track, the number/category information of the billiard, and/or the result of the billiard movement, and/or play the corresponding sound effect by the computer.
  • the sports state of the billiards includes impact, movement, stop, bag drop, and collision.
  • the background comparison analysis is as follows: firstly, the billiard table without billiards is used as the background image, and then the pool table image with the billiards is compared with the background image to obtain the position of the billiards.
  • the pre-frame comparison analysis is: comparing two adjacent frames of the collected image information, and determining a movement trajectory and a position of the billiard by determining the changed portion.
  • Figure 1 is a structural diagram of the system of the present invention
  • the "infrared projection type billiard entertainment system” includes a pool table 8, an image collection device 7, an image collection device hanger 2, a hollow billiard illumination lamp 4, an infrared fill light 5, a projection device 6, and a projection crane.
  • the projection device 6 employs a projector.
  • the image pickup device 7 employs a camera with a visible light filter.
  • the image capture device 7 can employ a
  • the implementation method of the infrared projection type billiard entertainment system includes the following processing steps:
  • the image capturing device 7 is controlled by the computer 3 to capture the motion picture of the billiards 9 on the pool table 8. Since the visible light has been filtered by the visible light filter, only the real object illuminated by the infrared fill light, that is, the billiard table 8, the billiard 9, the club and the user's image, are captured in the captured image information, and no projection device projects to Light and shadow pattern on the pool table 8. These images are transmitted to the computer 3, and the background comparison analysis and the previous frame comparison analysis of the computer 3 are performed to obtain the position information of the billiards 9 in the current image. In the process of programming implementation, you can use the program C language to call the image processing function in OpenCV (a cross-platform computer vision library based on open source distribution) for comparative analysis: a.
  • OpenCV a cross-platform computer vision library based on open source distribution
  • Background comparison analysis first make the billiard table 8 without placing billiards 9
  • the pool table 8 image with the billiard 9 is compared with the background image to obtain the position of the billiard 9; b.
  • the comparison analysis of the previous frame the adjacent two frames of the collected image can also be compared.
  • the trajectory and position of the billiard 9 are determined by judging the changed portion.
  • the information of the position and the motion track of the billiard 9 in the image information can be obtained by combining the above two methods.
  • the computer 3 judges the state of impact, movement, stop, bag drop, and collision of the billiard 9 according to the coordinates of the position of the billiard 9 and the trajectory information, and quickly creates an animated game special effect according to the different states of the billiard 9, and simultaneously projects the special effect image to the billiards.
  • On the table 8 and related sound effects are played by the computer 3, so that the special effect images and music are matched with the real billiards 9 on the pool table 8, so that the user can see a real billiards 9 and unreal special effects images and live sound effects on the pool table 8.
  • the combination is also a magical effect.
  • an image of the corresponding reward or penalty effect is instantly projected on the pool table 8.
  • the image capturing device 7 is a camera that can be switched with an infrared filter and a visible light filter
  • the camera can be switched to the visible light filter by the computer 3 to filter out the visible light, so that the collected image of the billiard 9 is not subjected to visible light.
  • the interference so the computer 3 can easily analyze the exact location of the billiards 9.
  • the camera is switched to the infrared filter by the computer 3, and the picture collected at this time has the color information of the billiard 9.
  • the position information of the billiard 9 originally analyzed the color of the billiard 9 at the position is determined.
  • the system not only knows the position of the billiard 9, but also knows the color of the billiard 9 at that position.
  • the entire system becomes smarter, and on this basis, more forms of entertainment can be developed to attract billiard lovers.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Studio Devices (AREA)
  • Projection Apparatus (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

一种红外投影式台球娱乐系统及其实现方法，系统包括台球桌（8）、图像采集设备（7）、投影设备（6）、电脑（3），还设有中空台球照明灯（4）、红外线补光灯（5）、投影吊架（1）和图像采集设备吊架（2）。电脑（3）控制图像采集设备（7）切换到可见光滤片，并控制图像采集设备（7）捕捉台球桌（8）上台球（9）的运动影像信息，得到影像信息中的台球（9）的位置、运动轨迹和运动结果的信息；电脑（3）再根据台球（9）的运动轨迹和/或台球（9）的运动结果，控制投影设备（6）在台球桌（8）上播放对应的特效画面和/或由电脑（3）播放对应的音效。

Description

红外投影式台球娱乐系统及其实现方法 技术领域
本发明涉及红外线技术、投影技术电脑软件系统，可应用于台球运动中的八球、九球、斯诺克等台球运动的娱乐活动，适用于初、中、高级各类台球爱好者，具体的说是一种红外投影式台球娱乐系统及其实现方法。
背景技术
台球是一项有着深厚群众基础的娱乐活动。因为其玩法简单，但变化多样，而且对个人技术水平要求较高，因此吸引着各个层次的爱好者。可是，台球训练却是一件枯燥而艰苦的事情，这让大多数人忘而却步。如果能将颜色单一的球台变得五彩缤纷、动感十足，同时将台球的训练课程变成一个个台球游戏，那么势必会吸引更多的人来加入这项绅士运动中来。
现有的相关技术有“投影式台球训练系统及其实现方法”(专利号：ZL201110312228.0)。该技术存在以下问题：
1.比较注重于台球的专业训练，适合于专业球员，对入门者的吸引力不强。如果在该技术的基础上进行突破性改进，则可以增强大大增加台球的娱乐性。
2.在系统运行时，当有视频或图片的影像投影到有台球的台球桌时，摄像头捕捉到的图像信息中混杂着真实台球图像和其他投影的影像。当用电脑分析图片时，很难分析出台球的真实位置在哪？也分不清哪些是前景？哪些是背景？
3.该系统必须要在比较苛刻的光照环境下才能顺利运行，否则会因为光照的方向的变化而产生阴影，从而影响电脑分析；也会因为光量的减少或增加而影响图像捕捉效果；还会因为色温的变化影响台球在图像捕捉时的颜色等等。这种光照环境在爱好者经常出入的台球会所是不容易达到的，所以该系统要想顺利运行，必须付出很高的环境成本。
发明内容
本发明的目的是针对上述“投影式台球训练系统及其实现方法”存在的几个问题，提供一种能增强台球娱乐性、获取桌面台球信息更快速准确、受环境光影响较小、实现成本更低的红外投影式台球娱乐系统及其实现方法，能吸引更多的台球爱好者加入台球的这项运动中，并在多样有趣的台球游戏中提高个人的台球水平。
本发明为实现上述目的所采用的技术方案是：一种红外投影式台球娱乐系统，包括图像采集设备、投影设备、电脑，图像采集设备的信号输出端接至电脑的输入端，投影设备的输入端接电脑的输出端并由电脑控制，还设有中空台球照明灯、红外线补光灯、投影吊架和图像采集设备吊架；红外线补光灯固定在中空台球灯上，并其照明端与中空台球灯下端持平；图像采集设备安装在图像采集设备吊架的底端，并其头端部对准中空台球灯的中空部分的中心并且不低于中空台球灯下端；中空台球灯悬挂于台球桌上方，使图像采集设备正对台球桌中部；投影设备和电脑一同安装在投影吊架的底端并吊挂于中空台球灯的旁侧。
所述投影设备采用投影机。
所述图像采集设备采用带可见光滤片的摄像头。
所述图像采集设备可以采用带红外线滤片和可见光滤片切换的摄像头。
所述中空台球灯悬挂于台球桌上方的至少1米高处。
一种红外投影式台球娱乐系统的实现方法，如果所述图像采集设备采用带可见光滤片的摄像头，包括以下步骤：
电脑控制图像采集设备捕捉台球桌上台球的运动影像信息，所述影像信息中仅有被红外补光灯照射的真实物体，而投影设备投射到台球桌上的可见光被滤片过滤掉了；
影像信息传输到电脑，经过电脑进行背景比较分析和前帧比较分析，进而得到所述影像信息中的台球的位置、运动轨迹和运动结果的信息；
电脑再根据所述台球的运动轨迹和/或台球的运动结果，控制投影设备在台球桌上播放对应的特效画面和/或由电脑播放对应的音效。
一种红外投影式台球娱乐系统的实现方法，如果所述图像采集设备是带红外线滤片和可见光滤片切换的摄像头，包括以下步骤：
电脑控制图像采集设备切换到可见光滤片，并控制图像采集设备捕捉台球桌上台球的运动影像信息，所述影像信息中仅有被红外补光灯照射的真实物体，而投影设备投射到台球桌上的可见光被滤片过滤掉了；
影像信息传输到电脑，经过电脑的背景比较分析和前帧比较分析，进而得到所述影像信息中的台球的位置、运动轨迹和运动结果的信息；
电脑控制图像采集设备切换到红外线滤片，并控制图像采集设备捕捉台球桌上带有台球的颜色信息的影像信息；
将所述台球的位置信息结合带有台球的颜色信息的影像信息中，确定各个位置上台球的号码/种类信息；
电脑再根据所述台球的运动轨迹、号码/种类信息和/或台球的运动结果，控制投影设备在台球桌上播放对应的特效画面和/或由电脑播放对应的音效。
所述台球的运动状态包括撞击、运动、停止、落袋、撞库。
所述背景比较分析为：先把没有放置台球的台球桌作为背景图像，再把放置了台球的台球桌图像与背景图像对比分析，得到台球的位置。
所述前帧比较分析为：把采集到的影像信息的相邻的两帧进行比较，通过判断变化的部分来确定台球的运动轨迹和位置。
本发明具有以下优点及有益效果：
1.由于采用带有可见光滤片的摄像头，过滤掉了投影机投在桌面的影像，使电脑能更加轻松地分析出台球的位置和运动轨迹。
2.由于采用红外线补光灯，大大减少了环境光对图像捕捉设备在采集图像过程中的影响。
3.在真实台球的撞击、运动、停止、落袋、撞库等过程中，实时地把动画特效和音效紧密结合起来，增加了在台球的运动过程的娱乐性，增强了台球的吸引力。
4.因为可以准确地分析出台球的位置和颜色，使整个系统变得更加智能。以此为基础进行的开发会使台球变得更加娱乐化。
附图说明
图1为本发明的系统结构图；
其中，1.投影吊架，2.图像采集设备吊架，3.电脑，4.中空台球照明灯，5.红外线补光灯，6.投影设备，7.图像采集设备，8.台球桌，9.台球。
具体实施方式
下面结合附图对本发明做进一步的详细说明。
如图1所示，该“红外投影式台球娱乐系统”包括台球桌8、图像采集设备7、图像采集设备吊架2、中空台球照明灯4、红外线补光灯5、投影设备6、投影吊架1、电脑3、台球9；红外线补光灯5固定在中空台球灯4上，并其照明端与中空台球灯4下端持平；图像采集设备7安装在图像采集设备吊架2的底端，并其头端部对准中空台球灯4的中空部分的中心并且不低于中空台球灯4下端，其信号输出端接至电脑3输入端；所说中空台球灯4悬挂于台球桌8上方的至少1米高处，使图像采集设备2正对台球桌8中部；投影设备6和电脑3一同安装在投影吊架1的底端并吊挂于中空台球灯4的旁侧，投影设备6输入端接至电脑3输出端并由电脑3控制。投影设备6采用投影机。图像采集设备7采用带可见光滤片的摄像头。图像采集设备7可以采用带红外线滤片和可见光滤片切换的摄像头。
红外投影式台球娱乐系统的实现方法，包括如下处理步骤：
由电脑3控制图像采集设备7捕捉台球桌8上的台球9运动影像。由于可见光已经被可见光滤片滤掉，所以捕捉到的影像信息中仅有被红外补光灯照射的真实物体，即台球桌8、台球9、球杆以及用户的影像，而没有投影设备投射到台球桌8上的光影图案。这些影像传输到电脑3，经过电脑3的背景比较分析和前帧比较分析，得到当前图像中台球9的位置信息。在编程实现过程中可以用程序C语言调用OpenCV(一个基于开源发行的跨平台计算机视觉库)中的图像处理函数进行比较分析:a.背景比较分析：先把没有放置台球9的台球桌8做为背景图像，再把放置了台球9的台球桌8图像与背景图像对比分析，可以得到台球9的位置；b.前帧比较分析：也可以把采集到的图像的相邻的两帧进行比较，通过判断变化的部分来确定台球9的运动轨迹和位置。结合上述两种方式可以得到所述影像信息中的台球9的位置、运动轨迹的信息。电脑3再根据台球9位置的坐标以及轨迹信息判断台球9的撞击、运动、停止、落袋、撞库等状态，根据台球9的不同状态迅速制作出动画游戏特效，同时将特效影像投影到台球桌8上并由电脑3播放相关音效，让特效影像和音乐与台球桌8上真实的台球9相配合，使用户在台球桌8上看到一种真实的台球9与虚幻特效影像以及现场音效相结合亦真亦幻的炫酷效果。之后，根据用户的击打台球9的结果，在台球桌8上即时投影出相应奖励或惩罚效果的影像。
如果采用的图像采集设备7是可以带红外线滤片和可见光滤片切换的摄像头，那么可以先由电脑3控制把摄像头切换到可见光滤片，滤掉可见光，使采集到的台球9图像不受到可见光的干扰，这样电脑3就可以很容易分析出台球9的准确位置。然后再由电脑3控制把摄像头切换到红外线滤片，这时采集的图片具有台球9的颜色信息。再根据原来分析出来的台球9的位置信息，确定该位置台球9的颜色。由此，系统不但能知道台球9的位置，还能知道在该位置上台球9的颜色。这样一来，整个系统就变得更加智能，在此基础上可以开发出更多的娱乐形式来吸引台球爱好者。

Claims (10)

  1. 一种红外投影式台球娱乐系统，包括图像采集设备(7)、投影设备(6)、电脑(3)，图像采集设备(7)的信号输出端接至电脑(3)的输入端，投影设备(6)的输入端接电脑(3)的输出端并由电脑(3)控制，其特征在于，还设有中空台球照明灯(4)、红外线补光灯(5)、投影吊架(1)和图像采集设备吊架(2)；红外线补光灯(5)固定在中空台球灯(4)上，并其照明端与中空台球灯(4)下端持平；图像采集设备(7)安装在图像采集设备吊架(2)的底端，并其头端部对准中空台球灯(4)的中空部分的中心并且不低于中空台球灯(4)下端；中空台球灯(4)悬挂于台球桌(8)上方，使图像采集设备(7)正对台球桌(8)中部；投影设备(6)和电脑(3)一同安装在投影吊架(1)的底端并吊挂于中空台球灯(4)的旁侧。
  2. 根据权利要求1所述的红外投影式台球娱乐系统，其特征在于，所述投影设备(6)采用投影机。
  3. 根据权利要求1所述的红外投影式台球娱乐系统，其特征在于，所述图像采集设备(7)采用带可见光滤片的摄像头。
  4. 根据权利要求1或3所述的红外投影式台球娱乐系统，其特征在于，所述图像采集设备(7)可以采用带红外线滤片和可见光滤片切换的摄像头。
  5. 根据权利要求1所述的红外投影式台球娱乐系统，其特征在于，所述中空台球灯(4)悬挂于台球桌(8)上方的至少1米高处。
  6. 一种根据权利要求1所述红外投影式台球娱乐系统的实现方法，其特征在于，如果所述图像采集设备(7)采用带可见光滤片的摄像头，包括以下步骤：
    电脑(3)控制图像采集设备(7)捕捉台球桌(8)上台球(9)的运动影像信息，所述影像信息中仅有被红外补光灯照射的真实物体，而投影设备(6)投射到台球桌(8)上的可见光被滤片过滤掉了；
    影像信息传输到电脑(3)，经过电脑(3)进行背景比较分析和前帧比较分析，进而得到所述影像信息中的台球(9)的位置、运动轨迹和运动结果的信息；
    电脑(3)再根据所述台球(9)的运动轨迹和/或台球(9)的运动结果，控制投影设备(6)在台球桌(8)上播放对应的特效画面和/或由电脑(3)播放对应的音效。
  7. 一种根据权利要求1所述红外投影式台球娱乐系统的实现方法，其特征在于，如果所述图像采集设备(7)是带红外线滤片和可见光滤片切换的摄像头，包括以下步骤：
    电脑(3)控制图像采集设备(7)切换到可见光滤片，并控制图像采集设备(7)捕捉台球桌(8)上台球(9)的运动影像信息，所述影像信息中仅有被红外补光灯照射的真实物体，而投影设备(6)投射到台球桌(8)上的可见光被滤片过滤掉了；
    影像信息传输到电脑(3)，经过电脑(3)的背景比较分析和前帧比较分析，进而得到所述影像信息中的台球(9)的位置、运动轨迹和运动结果的信息；
    电脑(3)控制图像采集设备(7)切换到红外线滤片，并控制图像采集设备(7)捕捉台球桌(8)上带有台球(9)的颜色信息的影像信息；
    将所述台球(9)的位置信息结合带有台球(9)的颜色信息的影像信息中，确定各个位置上台球(9)的号码/种类信息；
    电脑(3)再根据所述台球(9)的运动轨迹、号码/种类信息和/或台球(9)的运动结果，控制投影设备(6)在台球桌(8)上播放对应的特效画面和/或由电脑(3)播放对应的音效。
  8. 根据权利要求6或7所述的红外投影式台球娱乐系统的实现方法，其特征在于，所述台球(9)的运动状态包括撞击、运动、停止、落袋、撞库。
  9. 根据权利要求6或7所述的红外投影式台球娱乐系统的实现方法，其特征在于，所述背景比较分析为：先把没有放置台球(9)的台球桌(8)作为背景图像，再把放置了台球(9)的台球桌(8)图像与背景图像对比分析，得到台球(9)的位置。
  10. 根据权利要求6或7所述的红外投影式台球娱乐系统的实现方法，其特征在于，所述前帧比较分析为：把采集到的影像信息的相邻的两帧进行比较，通过判断变化的部分来确定台球(9)的运动轨迹和位置。
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