WO2014094552A1 - 投影仪和摄像机交互的方法及系统 - Google Patents
投影仪和摄像机交互的方法及系统 Download PDFInfo
- Publication number
- WO2014094552A1 WO2014094552A1 PCT/CN2013/088766 CN2013088766W WO2014094552A1 WO 2014094552 A1 WO2014094552 A1 WO 2014094552A1 CN 2013088766 W CN2013088766 W CN 2013088766W WO 2014094552 A1 WO2014094552 A1 WO 2014094552A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical axis
- camera
- projector
- lens
- infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
-
- 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
Definitions
- Projector - The camera interaction system is a flexible interactive system.
- the human body posture acquired by the camera is used as an interactive input
- the projection content of the projector is used as an interactive content, for example: when performing a picture display, a projection surface is projected on the wall surface by the projector. Displaying a picture on the projection surface; acquiring a human body posture by the camera, processing the displayed picture according to the acquired human body posture (for example, enlarging a picture, switching a picture, etc.), and displaying the processing result on the projection surface.
- debugging is required, and the dynamic calibration must be performed according to the distance between the projector and the projection surface during debugging.
- the calibration process of the projector and the camera is cumbersome.
- Embodiments of the present invention provide a method and system for interacting a projector and a camera, which can solve the technical problem that the calibration process of the projector and the camera is cumbersome in the prior art.
- an embodiment of the present invention provides a method for interacting a projector and a camera, the method comprising:
- the camera is an infrared camera
- a first optical axis of the projector and a second optical axis of the camera Determining a first optical axis of the projector and a second optical axis of the camera, the first optical axis being a visible light axis projected by the projector, and the second optical axis being an infrared acquired by the camera a light axis; a first lens is disposed at an intersection of the first optical axis and the second optical axis to process the first optical axis and the second optical axis such that the first light processed by the first lens The axis coincides with the second optical axis.
- an embodiment of the present invention further provides a system for interacting a projector and a camera, including a projector, a camera, and a first lens, wherein the camera is an infrared camera:
- the projector and the camera are fixed in position, the projector and the camera are relatively stationary; the projector determines a first optical axis, and the first optical axis is a visible light axis projected by the projector;
- the camera determines a second optical axis, and the second optical axis is an infrared light axis captured by the camera;
- the first lens is located at an intersection of the first optical axis and the second optical axis for processing the first optical axis and the second optical axis such that a first optical axis passes through the first lens It coincides with the second optical axis.
- a method and system for interacting a projector and a camera according to an embodiment of the present invention, the projector and the camera are fixed, and the first lens is disposed at an intersection of the first optical axis of the projector and the second optical axis of the camera, so that the The first optical axis and the second optical axis are coincident after the first lens.
- the projection surface of the projector and the camera can be ensured regardless of the distance between the projector and the projection surface.
- FIG. 1 is a schematic flowchart of a method for interacting a projector and a camera according to Embodiment 1 of the present invention
- 2 is a schematic flowchart of a method for interacting a projector and a camera according to Embodiment 2 of the present invention
- FIG. 3 is a schematic diagram of a projector-camera interaction system according to Embodiment 2 of the present invention
- Embodiments of the present invention provide a method for interacting a projector and a camera. As shown in FIG. 1, the method includes steps 101-103.
- a method for interacting a projector and a camera the projector and the camera are fixed, and the first lens is disposed at an intersection of a first optical axis of the projector and a second optical axis of the camera, so that the first An optical axis and the second optical axis are coincident after the first lens.
- the projection surface of the projector can be ensured to coincide with the imaging surface of the camera without re-writing. Calibration, the ability to greatly reduce the use of the projector-camera interactive system.
- the embodiment of the present invention provides a method for interacting a projector and a camera. As shown in FIG. 2, the method includes steps 201-206.
- the camera in this embodiment may be an infrared camera. In practical applications, the camera in this embodiment may be a camera of any infrared band.
- the user needs to perform initial debugging on the position of the projector and the camera. After the debugging is completed, the position of the projector and the camera are fixed, and subsequent debugging is not required.
- the first optical axis is a visible light axis projected by the projector, and the second optical axis is an infrared optical axis acquired by the camera.
- the first optical axis in this embodiment is the central axis of the visual projection body projected by the projector
- the second optical axis is the central axis of the viewing cone collected by the camera. 204. Determine an angle between the first optical axis and the second optical axis, and configure an infrared reflective lens at a midline position of the included angle.
- the infrared reflecting lens is the first lens in the embodiment, and the infrared reflecting lens is used for achieving total reflection of infrared light and achieving full transmission of visible light.
- the embodiment of the present invention provides a schematic diagram of a projector-camera interaction system by taking a typical case where the projector and the camera are perpendicular to each other.
- the first optical axis of the projector 1 is
- the second optical axes of the camera 2 are perpendicular to each other, and the infrared reflecting mirror 3 is disposed at a midline position of the angle between the projector 1 and the camera 2; the visible light 11 transmitted by the projector 1 passes through the infrared emitting lens 3 to be totally transmitted, and the camera 2 collects
- the infrared light 21 is collected after total reflection by the infrared emitting lens 3.
- the visible light 11 transmitted by the projector 1 and the infrared light 21 collected by the camera 2 are completely coincident, and it is ensured that the projection surface of the projector coincides with the photographing surface of the camera. Therefore, no matter how the distance between the projector and the projection surface changes, there is no need to calibrate the projector and camera.
- the camera collects a user's human body posture through the infrared reflective lens, and processes the content transmitted by the projector according to the acquired human body posture.
- the infrared emitting lens in step 204 can be replaced by an infrared transmitting lens, which realizes full transmission of infrared light and total reflection of visible light.
- Step 205 is replaced by: total reflection of the first optical axis by the infrared transmissive lens, total transmission of the second optical axis, such that a second optical axis transmitted through the infrared transmissive lens and the The first optical axes coincide.
- the alternative provided above is an alternative solution. Compared with steps 205-206, the only difference is that the infrared transmission lens is used as the first lens, and the implementation principle is the same as that of the infrared reflection lens. Narration.
- the viewing angle of the camera may be set to be larger than the viewing angle of the projector such that the shooting range of the camera in the same plane is larger than the projection range of the projector, thereby ensuring a sufficiently large interactive range for user convenience.
- a method for interacting a projector and a camera the projector and the camera are fixed, and the first lens is disposed at an intersection of a first optical axis of the projector and a second optical axis of the camera, so that the first An optical axis and the second optical axis are coincident after the first lens.
- the projection surface of the projector and the camera can be ensured regardless of the distance between the projector and the projection surface.
- the embodiment of the present invention provides a system for interacting between a projector and a camera, which can implement the foregoing method embodiment.
- the system includes a projector 41, a camera 42 and a first lens 43.
- Camera 42 is an infrared camera, where:
- the positions of the projector 41 and the camera 42 are fixed, and the projector 41 and the camera 42 are relatively stationary;
- the projector 41 determines a first optical axis, the first optical axis being a visible optical axis projected by the projector 41;
- the camera 42 determines a second optical axis, and the second optical axis is an infrared acquired by the camera 42 Light axis
- the first lens 43 is located at an intersection of the first optical axis and the second optical axis for processing the first optical axis and the second optical axis such that the first lens processing is performed
- the optical axis coincides with the second optical axis.
- the projector 41 and the camera 42 can be placed opposite each other such that the lens end of the projector 41 is adjacent to the camera end of the camera 42 and the angle between the projector 41 and the camera 42 is greater than 0 degrees. Less than 180 degrees.
- the first lens 43 may be an infrared reflecting lens that achieves total reflection of infrared light and complete transmission of visible light.
- the infrared reflecting lens is located at an intermediate position between the first optical axis and the second optical axis, and is used for performing full transmission on the first optical axis, and performing full on the second optical axis. Reflecting such that a first optical axis transmitted through the infrared reflecting lens coincides with the second optical axis.
- the first lens 43 may be an infrared transmission lens that achieves full transmission of infrared light and total reflection of visible light.
- the infrared transmitting lens is located at a center line position of an angle between the first optical axis and the second optical axis, and is used for total reflection of the first optical axis, and the entire optical axis is completely Transmitted such that a second optical axis transmitted through the infrared transmissive lens coincides with the first optical axis.
- the viewing angle of the camera 42 can be set to be larger than the viewing angle of the projector 41, so that the shooting range of the camera is larger than the projection range of the projector in the same plane, thereby ensuring a sufficiently large interaction range, which is convenient for the user to use. .
- a system for interacting a projector and a camera the projector and the camera are fixed, and the first lens is disposed at an intersection of the first optical axis of the projector and the second optical axis of the camera.
- the first optical axis and the second optical axis are coincident after passing through the first lens.
- the present invention can be implemented by means of software plus necessary general hardware, and of course, can also be through hardware, but in many cases the former is a better implementation. .
- the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
- a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Projection Apparatus (AREA)
- Studio Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/385,400 US20150331481A1 (en) | 2012-12-18 | 2013-12-06 | Method and system for interaction between projector and camera |
| DE112013001696.6T DE112013001696T5 (de) | 2012-12-18 | 2013-12-06 | Verfahren und System zur Interaktion zwischen Projektor und Kamera |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552898.4 | 2012-12-18 | ||
| CN201210552898.4A CN103869961A (zh) | 2012-12-18 | 2012-12-18 | 投影仪和摄像机交互的方法及系统 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014094552A1 true WO2014094552A1 (zh) | 2014-06-26 |
Family
ID=50908587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2013/088766 Ceased WO2014094552A1 (zh) | 2012-12-18 | 2013-12-06 | 投影仪和摄像机交互的方法及系统 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20150331481A1 (zh) |
| CN (1) | CN103869961A (zh) |
| DE (1) | DE112013001696T5 (zh) |
| WO (1) | WO2014094552A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI653563B (zh) * | 2016-05-24 | 2019-03-11 | 仁寶電腦工業股份有限公司 | 投影觸控的圖像選取方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1698357A (zh) * | 2003-04-11 | 2005-11-16 | 三菱电机株式会社 | 在物体上显示输出图像的方法 |
| CN200959061Y (zh) * | 2006-04-26 | 2007-10-10 | 中国电信股份有限公司 | 视讯系统中的视讯平台 |
| CN201955771U (zh) * | 2010-11-15 | 2011-08-31 | 中国科学院深圳先进技术研究院 | 人机交互系统 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5235363A (en) * | 1991-05-10 | 1993-08-10 | Nview Corporation | Method and apparatus for interacting with a computer generated projected image |
| US6707444B1 (en) * | 2000-08-18 | 2004-03-16 | International Business Machines Corporation | Projector and camera arrangement with shared optics and optical marker for use with whiteboard systems |
| CN200944046Y (zh) * | 2006-08-29 | 2007-09-05 | 昆明物理研究所 | 微扫描器平面元件法向矢量测量仪 |
| CN101226325B (zh) * | 2008-02-03 | 2010-06-02 | 李志扬 | 基于随机相长干涉的三维显示方法及装置 |
| BR112014002186B1 (pt) * | 2011-07-29 | 2020-12-29 | Hewlett-Packard Development Company, L.P | sistema de projeção de captura, meio executável de processamento e método de colaboração em espaço de trabalho |
| CN202502335U (zh) * | 2012-01-20 | 2012-10-24 | 光峰光电(无锡)有限公司 | 短焦光学互动投影机系统 |
-
2012
- 2012-12-18 CN CN201210552898.4A patent/CN103869961A/zh active Pending
-
2013
- 2013-12-06 DE DE112013001696.6T patent/DE112013001696T5/de not_active Ceased
- 2013-12-06 WO PCT/CN2013/088766 patent/WO2014094552A1/zh not_active Ceased
- 2013-12-06 US US14/385,400 patent/US20150331481A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1698357A (zh) * | 2003-04-11 | 2005-11-16 | 三菱电机株式会社 | 在物体上显示输出图像的方法 |
| CN200959061Y (zh) * | 2006-04-26 | 2007-10-10 | 中国电信股份有限公司 | 视讯系统中的视讯平台 |
| CN201955771U (zh) * | 2010-11-15 | 2011-08-31 | 中国科学院深圳先进技术研究院 | 人机交互系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112013001696T5 (de) | 2014-12-11 |
| US20150331481A1 (en) | 2015-11-19 |
| CN103869961A (zh) | 2014-06-18 |
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