CN112463099A - Cursor tracking camera projector - Google Patents

Cursor tracking camera projector Download PDF

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Publication number
CN112463099A
CN112463099A CN202011572791.7A CN202011572791A CN112463099A CN 112463099 A CN112463099 A CN 112463099A CN 202011572791 A CN202011572791 A CN 202011572791A CN 112463099 A CN112463099 A CN 112463099A
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CN
China
Prior art keywords
projector
camera
computer
pointer
laser
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Pending
Application number
CN202011572791.7A
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Chinese (zh)
Inventor
朱嘉慧
贾冉
冯思琪
伍天伟
周奕龙
朱明�
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Individual
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Individual
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Priority to CN202011572791.7A priority Critical patent/CN112463099A/en
Publication of CN112463099A publication Critical patent/CN112463099A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
    • 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
    • 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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Position Input By Displaying (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The invention relates to a cursor tracking camera projector, in particular to a camera projector with a camera and image processing capability, belonging to an electronic device or an electrical device. The cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction; the cursor tracking camera shooting projector consists of a computer, a projector, a camera and a laser pen or a pointer, wherein the projector and the camera are connected with the computer through a wired cable or a wireless network; pressing a laser switch button to emit laser beams to form a bright light spot on the projection screen; the computer image processing software compares the image shot by the camera with the image output to the projector, identifies the position of the laser beam spot, controls the arrow of the mouse to be displayed at the spot position, and moves along with the movement of the laser beam spot position; other keys on the laser pen can realize the functions of mouse keys, or the pointer generates different instructions in different moving modes, and even can realize complex man-machine interaction.

Description

Cursor tracking camera projector
Technical Field
The invention relates to a cursor tracking camera projector, in particular to a camera projector with a camera and image processing capability, belonging to an electronic device or an electrical device.
Background
With the development of society and technology, communication based on electronic information is increasingly common, and especially classroom teaching, conference communication and network remote interaction are increasingly increased.
The communication of the mouse is adopted, so that a user is trapped in front of a computer and cannot walk to the middle of a student to carry out close-range interaction, the existing laser pen has single function and is not as good as the function of the mouse, and how to enable the laser pen to have the function of the mouse and even have the function of a painting brush is very worthy of research.
Disclosure of Invention
The technical problem to be solved by the invention is as follows:
1. cursor tracking camera projector;
2. a laser pen with a mouse function and a painting brush function.
The invention provides a cursor tracking camera projector.
The technical problem to be solved by the invention is realized by the following technical scheme.
A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction;
the cursor tracking camera shooting projector consists of a computer, a projector, a camera and a laser pen, wherein the projector and the camera are respectively connected with the computer through a wired cable or a wireless network;
the laser pen is provided with a laser switch key, and the laser pen emits laser beams to form a bright light spot on the projection screen when a laser switch button is pressed;
the image of the projection screen shot by the camera is transmitted into the computer, the image shot by the camera is compared with the image output to the projector by the computer image processing software, the position of a laser beam spot is identified, a mouse arrow is controlled to be displayed at the spot position, and the mouse arrow moves along with the movement of the laser beam spot position.
The laser pen is also provided with a left mouse button, a right mouse button and a multifunctional setting button, and the corresponding function can be executed by pressing the button of the laser pen when needed.
The laser beam light spot rapidly shakes left and right or up and down on the projection screen, rapidly circles clockwise or anticlockwise, executes a preset function, or rapidly circles clockwise or anticlockwise on the display button or shakes to execute a specified function of the button;
the laser pen multifunctional setting key can control laser beam light spots to present circular or square patterns with adjustable sizes.
A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction;
the cursor tracking camera shooting projector consists of a computer, a projector and a camera, wherein the projector and the camera are respectively connected with the computer through a wired cable or a wireless network;
pointing a pointer or a finger to a required position on the projection screen;
the image of the projection screen shot by the camera is transmitted into a computer, the image shot by the camera is compared with the image output to the projector by computer image processing software, the position of the pointer end or the finger tip of the pointer is identified, the arrow of the mouse is controlled to be displayed at the position, and the arrow of the mouse moves along with the movement of the position of the pointer end or the finger tip of the pointer.
The pointer end or the finger tip rapidly circles or shakes clockwise or anticlockwise on the projection screen to execute a preset function or rapidly circles or shakes clockwise or anticlockwise on the display button to execute a button specified function;
the two cameras are arranged on the left and right, so that stereoscopic vision is formed, knocking or moving in the depth direction of the pointer end or the finger tip can be detected, and a preset function is executed;
the pointer or the fingers have two points pointing to two different positions on the projection screen, so that more functions are realized.
A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction;
the cursor tracking camera projector consists of a computer, a camera projector and a laser pen, the camera and the projector are combined into a whole to form the camera projector, and the camera and the projector share a wired cable or a wireless network to be connected with the computer;
the laser pen is provided with a laser switch key, and the laser pen emits laser beams to form a bright light spot on the projection screen when a laser switch button is pressed;
the image of the projection screen shot by the camera is transmitted into the computer, the image shot by the camera is compared with the image output to the projector by the computer image processing software, the position of a laser beam spot is identified, a mouse arrow is controlled to be displayed at the spot position, and the mouse arrow moves along with the movement of the laser beam spot position.
The laser pen is also provided with a left mouse button, a right mouse button and a multifunctional setting button, and the corresponding function can be executed by pressing the button of the laser pen when needed.
The laser beam light spot rapidly shakes left and right or up and down on the projection screen, rapidly circles clockwise or anticlockwise, executes a preset function, or rapidly circles clockwise or anticlockwise on the display button or shakes to execute a specified function of the button;
the camera projector has an image processing function, the laser beam spot position can be set, the laser pen has the function of controlling the camera projector remote controller under the guidance of the camera projector setting menu, and the data of the identified laser beam spot position is directly transmitted to the computer during working.
A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction;
the cursor tracking camera projector consists of a computer and a camera projector, the camera and the projector are combined into a whole to form the camera projector, and the camera and the projector share a wired cable or a wireless network to be connected with the computer;
pointing a pointer or a finger to a required position on the projection screen;
the image of the projection screen shot by the camera is transmitted into a computer, the image shot by the camera is compared with the image output to the projector by computer image processing software, the position of the pointer end or the finger tip of the pointer is identified, the arrow of the mouse is controlled to be displayed at the position, and the arrow of the mouse moves along with the movement of the position of the pointer end or the finger tip of the pointer.
The pointer end or the finger tip rapidly circles or shakes clockwise or anticlockwise on the projection screen to execute a preset function or rapidly circles or shakes clockwise or anticlockwise on the display button to execute a button specified function;
the two cameras are arranged on the left and right, so that stereoscopic vision is formed, knocking or moving in the depth direction of the pointer end or the finger tip can be detected, and a preset function is executed;
the camera projector has an image processing function, can be provided with a pointer end or finger tip position, has the function of controlling the projector remote controller under the guidance of a camera projector setting menu, and directly transmits the recognized pointer end or finger tip position data and the pointer end or finger tip action data to a computer during working.
When a laser beam generated by the laser pen is emitted onto the projection screen, an obvious bright spot, namely a light spot, is generated on the projection screen, the camera or the video camera shoots the whole projection screen picture and transmits the whole projection screen picture into a computer host or a cursor tracking camera projector with an image processing function, the position of the laser light spot on the projection screen relative to an original image can be accurately identified by comparing the picture, such as PPT, output to the cursor tracking camera projector by the computer host, and the cursor or the arrow of the mouse is controlled to move to the position according to the position data of the light spot on the original image, so that the cursor tracking function is realized. Because the laser pen is connected with the computer host or the cursor tracking camera projector through a wired cable or a wireless network, the mouse control function can be very easily realized by the left button and the right button of the mouse on the laser pen.
When the pointer points to the projection screen, the camera or the video camera shoots the whole projection screen picture and transmits the picture into the computer host or the cursor tracking camera projector with the image processing function, the picture is compared with the image output to the cursor tracking camera projector by the computer host, such as PPT, the position of the pointer end or the finger tip of the pointer relative to the original image can be accurately identified, and the cursor or the arrow of the mouse is controlled to move to the position according to the position data of the pointer end or the finger tip on the original image, so that the function of cursor tracking is realized. The functions of a left button, a right button and the like of the mouse are realized by quickly shaking the left and right ends of the pointer or the finger tip, quickly drawing a circle anticlockwise or quickly drawing a circle clockwise. When two cameras or two cameras are adopted, stereoscopic vision can be formed, and depth data of a pointer end or a finger tip can be detected, so that the cursor tracking camera projector has a stronger function. Even more complex control functions can be implemented using one pointer with one finger, two pointers, or two fingers.
Because the graphic processing software can very accurately identify the position of the laser beam on the screen, the moving track of the laser beam can be displayed in real time, and the drawing function of the laser pen is realized.
Meanwhile, as the graphics processing software has increasingly powerful functions, even complex man-machine interaction based on human body language recognition can be realized, so that a brand-new class-taking mode or communication discussion mode is brought.
The cursor tracking camera projector has the advantages of ingenious design, low cost, convenience in use, wide application, capability of controlling a laser pen to draw pictures, powerful function and great use value.
Drawings
FIG. 1 is a split cursor tracking camera projector with a laser pointer as an indicator;
FIG. 2 is a split cursor tracking camera projector with a pointer as a pointer;
FIG. 3 shows a combined cursor tracking camera projector with a laser pointer as an indicator;
fig. 4 shows a pointer-integrated cursor tracking camera projector with a pointer as a pointer.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
Split type camera projector with laser pen as indicator
The cursor tracking camera shooting projector consists of a computer, a projector, a camera and a laser pen, wherein the projector and the camera are connected with the computer through a wireless cable, and the laser pen is also connected with the computer through a wireless network, as shown in figure 1.
The laser pen is provided with a laser switch button, a left mouse button, a right mouse button and a multifunctional setting key, and laser beams emitted by the laser pen are pressed down to form a bright light spot on the projection screen.
The camera is arranged beside the projector, the camera shoots an image of the projection screen and transmits the image to the computer, the computer image processing software compares the image shot by the camera with the image output to the projector, the position of a laser beam spot is identified, a mouse arrow is controlled to be displayed at the spot position, and the mouse arrow moves along with the movement of the laser beam spot position; and pressing a key of the laser pen to execute a related function when needed.
The laser pen multifunctional setting key can control laser beam spots to present a circular or square pattern with adjustable size, and is used for prompting or emphasizing contents sleeved in the circular or square pattern.
The cursor tracking camera projector can be used for classroom teaching and meeting communication, can also be used for network remote interaction, and can realize information transmission between file content and screen laser beam spots or laser patterns at a far end.
Example 2
Split type camera projector with pointer as pointer
The cursor tracking camera projector is composed of a computer, a projector and two cameras, wherein the projector and the two cameras are respectively connected with the computer through a wireless network, as shown in fig. 2.
A pointer or finger points to a desired location on the projection screen.
The two cameras are respectively arranged at the left side and the right side of the projector, the two cameras shoot images of the projection screen and transmit the images into the computer, the computer image processing software compares the images shot by the cameras with the images output to the projector, the position of a pointer end or a finger tip is identified, a mouse arrow is controlled to be displayed at the position, and the mouse arrow moves along with the movement of the pointer end or the finger tip. Tapping the projection screen by using the pointer end or the finger tip when needed, and determining whether to execute the related function on the display button according to the data in the depth direction obtained by image processing; or the pointer end or the finger tip is quickly shaken left and right or up and down, a circle is quickly drawn clockwise or anticlockwise, and corresponding operation is executed according to the preset function.
The pointer or the fingers have two points pointing to two different positions on the projection screen, so that more functions are realized.
The cursor tracking camera projector can be used for classroom teaching and meeting communication, can also be used for network remote interaction, and can realize information transmission between file content and a pointer end or finger tip position or moving track at a far end.
Example 3
Integrated camera projector with laser pen as indicator
The cursor tracking camera projector consists of a computer, a camera projector and a laser pen, the camera projector is a combination of a camera and a projector, and the camera projector is connected with the computer by sharing a wired cable, as shown in fig. 3.
The laser pen is provided with a laser switch button, a left mouse button, a right mouse button and a multifunctional setting key, and laser beams emitted by the laser pen are pressed down to form a bright light spot on the projection screen.
The image of the projection screen shot by the camera is transmitted into a computer, the image shot by the camera is compared with the image output to the projector by the computer image processing software, the position of a laser beam spot is identified, a mouse arrow is controlled to be displayed at the spot position, the mouse arrow moves along with the movement of the laser beam spot position, and a key of the laser pen is pressed to execute related functions when needed.
The camera projector has an image processing function, can set laser beam spot positions, has the function of controlling the camera remote controller under the guidance of a camera projector setting menu, and directly transmits the data of the identified laser beam spot positions to a computer during use.
The cursor tracking camera projector can be used for classroom teaching and meeting communication, can also be used for network remote interaction, and can realize information transmission between file content and screen laser beam spots or laser patterns at a far end.
Example 4
Integrated camera projector with pointer as pointer
The cursor tracking camera projector consists of a computer and a camera projector, the camera projector is a combination of two cameras and a projector, and a common wired cable is connected with the computer, as shown in fig. 4.
Pointing a pointer or a finger to a required position on the projection screen;
the images shot by the two cameras are transmitted into a computer, the images shot by the two cameras are compared with the images output to the projector by computer image processing software, the position of the pointer end or the finger tip of the pointer is identified, a mouse arrow is controlled to be displayed at the position, and the mouse arrow moves along with the movement of the position of the pointer end or the finger tip of the pointer. Tapping the projection screen by using the pointer end or the finger tip when needed, and determining whether to execute the related function on the display button according to the data in the depth direction obtained by image processing; or the pointer end or the finger tip is quickly shaken left and right or up and down, a circle is quickly drawn clockwise or anticlockwise, and corresponding operation is executed according to the preset function.
The camera projector can also have an image processing function, can be provided with a pointer end or finger tip position, has the function of controlling the camera projector remote controller under the guidance of a camera projector setting menu, and directly transmits the recognized data of the pointer end or finger tip position and the motion data of the pointer end or finger tip to a computer during use.
The cursor tracking camera projector can be used for classroom teaching and meeting communication, can also be used for network remote interaction, and can realize information transmission between file content and a pointer end or finger tip position or moving track at a far end.

Claims (10)

1. A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction; the method is characterized in that:
the cursor tracking camera shooting projector consists of a computer, a projector, a camera and a laser pen, wherein the projector and the camera are respectively connected with the computer through a wired cable or a wireless network;
the laser pen is provided with a laser switch key, and the laser pen emits laser beams to form a bright light spot on the projection screen when a laser switch button is pressed;
the image of the projection screen shot by the camera is transmitted into the computer, the image shot by the camera is compared with the image output to the projector by the computer image processing software, the position of a laser beam spot is identified, a mouse arrow is controlled to be displayed at the spot position, and the mouse arrow moves along with the movement of the laser beam spot position.
2. A cursor tracking camera projector as claimed in claim 1, wherein:
the laser pen is also provided with a left mouse button, a right mouse button and a multifunctional setting button, and the corresponding function can be executed by pressing the button of the laser pen when needed.
3. A cursor tracking camera projector according to claim 1 or 2 and further comprising:
the laser beam light spot rapidly shakes left and right or up and down on the projection screen, rapidly circles clockwise or anticlockwise, executes a preset function, or rapidly circles clockwise or anticlockwise on the display button or shakes to execute a specified function of the button;
the multifunctional setting key of the laser pen can control laser beam spots to present circular or square patterns with adjustable sizes.
4. A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction; the method is characterized in that:
the cursor tracking camera shooting projector consists of a computer, a projector and a camera, wherein the projector and the camera are respectively connected with the computer through a wired cable or a wireless network;
pointing a pointer or a finger to a required position on the projection screen;
the image of the projection screen shot by the camera is transmitted into a computer, the image shot by the camera is compared with the image output to the projector by computer image processing software, the position of the pointer end or the finger tip of the pointer is identified, the arrow of the mouse is controlled to be displayed at the position, and the arrow of the mouse moves along with the movement of the position of the pointer end or the finger tip of the pointer.
5. A cursor tracking camera projector as claimed in claim 4 wherein:
the pointer end or the finger tip quickly draws a circle or shakes clockwise or anticlockwise on the projection screen to execute a preset function or quickly draws a picture or shakes clockwise or anticlockwise on the display button to execute a button specified function;
the two cameras are arranged on the left and right, so that stereoscopic vision is formed, knocking or moving of the pointer end or the finger tip in the depth direction can be detected, and a preset function is executed;
the pointer or the fingers are two in total and point to two different positions on the projection screen, so that more functions are realized.
6. A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction; the method is characterized in that:
the cursor tracking camera projector consists of a computer, a camera projector and a laser pen, the camera and the projector are combined into a whole to form the camera projector, and the camera and the projector share a wired cable or a wireless network to be connected with the computer;
the laser pen is provided with a laser switch key, and the laser pen emits laser beams to form a bright light spot on the projection screen when a laser switch button is pressed;
the image of the projection screen shot by the camera is transmitted into the computer, the image shot by the camera is compared with the image output to the projector by the computer image processing software, the position of a laser beam spot is identified, a mouse arrow is controlled to be displayed at the spot position, and the mouse arrow moves along with the movement of the laser beam spot position.
7. A cursor tracking camera projector as claimed in claim 6 wherein:
the laser pen is also provided with a left mouse button, a right mouse button and a multifunctional setting button, and the corresponding function can be executed by pressing the button of the laser pen when needed.
8. A cursor tracking camera projector according to claim 6 or 7 and further comprising:
the laser beam light spot rapidly shakes left and right or up and down on the projection screen, rapidly circles clockwise or anticlockwise, executes a preset function, or rapidly circles clockwise or anticlockwise on the display button or shakes to execute a specified function of the button;
the camera projector has an image processing function, the laser beam spot position can be set, the laser pen has the function of controlling the camera projector remote controller under the guidance of the camera projector setting menu, and the data of the identified laser beam spot position is directly transmitted to the computer during working.
9. A cursor tracking camera projector is used for classroom teaching, conference communication and network remote interaction; the method is characterized in that:
the cursor tracking camera projector consists of a computer and a camera projector, the camera and the projector are combined into a whole to form the camera projector, and the camera and the projector share a wired cable or a wireless network to be connected with the computer;
pointing a pointer or a finger to a required position on the projection screen;
the image of the projection screen shot by the camera is transmitted into a computer, the image shot by the camera is compared with the image output to the projector by computer image processing software, the position of the pointer end or the finger tip of the pointer is identified, the arrow of the mouse is controlled to be displayed at the position, and the arrow of the mouse moves along with the movement of the position of the pointer end or the finger tip of the pointer.
10. A cursor tracking camera projector as claimed in claim 9 wherein:
the pointer end or the finger tip rapidly circles or shakes clockwise or anticlockwise on the projection screen to execute a preset function or rapidly circles or shakes clockwise or anticlockwise on the display button to execute a button specified function;
the two cameras are arranged on the left and right, so that stereoscopic vision is formed, knocking or moving of the pointer end or the finger tip in the depth direction can be detected, and a preset function is executed;
the camera projector has an image processing function, can be provided with a pointer end or finger tip position, has the function of controlling the projector remote controller under the guidance of a camera projector setting menu, and directly transmits the recognized pointer end or finger tip position data and the pointer end or finger tip action data to a computer during working.
CN202011572791.7A 2020-12-25 2020-12-25 Cursor tracking camera projector Pending CN112463099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011572791.7A CN112463099A (en) 2020-12-25 2020-12-25 Cursor tracking camera projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011572791.7A CN112463099A (en) 2020-12-25 2020-12-25 Cursor tracking camera projector

Publications (1)

Publication Number Publication Date
CN112463099A true CN112463099A (en) 2021-03-09

Family

ID=74804040

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011572791.7A Pending CN112463099A (en) 2020-12-25 2020-12-25 Cursor tracking camera projector

Country Status (1)

Country Link
CN (1) CN112463099A (en)

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