WO2020252934A1 - 动向投影装置、方法及投影仪 - Google Patents

动向投影装置、方法及投影仪 Download PDF

Info

Publication number
WO2020252934A1
WO2020252934A1 PCT/CN2019/103835 CN2019103835W WO2020252934A1 WO 2020252934 A1 WO2020252934 A1 WO 2020252934A1 CN 2019103835 W CN2019103835 W CN 2019103835W WO 2020252934 A1 WO2020252934 A1 WO 2020252934A1
Authority
WO
WIPO (PCT)
Prior art keywords
projection
unit
dynamic
image
angle
Prior art date
Application number
PCT/CN2019/103835
Other languages
English (en)
French (fr)
Inventor
杨伟樑
高志强
李文祥
丁明内
张天舒
Original Assignee
广景视睿科技（深圳）有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广景视睿科技（深圳）有限公司 filed Critical 广景视睿科技（深圳）有限公司
Publication of WO2020252934A1 publication Critical patent/WO2020252934A1/zh
Priority to US17/226,728 priority Critical patent/US11402732B2/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/26—Projecting separately subsidiary matter simultaneously with main image
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191—Testing thereof
    • H04N9/3194—Testing thereof including sensor feedback
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics
    • 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam

Definitions

  • the present invention relates to the technical field of digital projection display, in particular to a dynamic projection device, method and projector.
  • portable electronic devices With the rapid development of semiconductor display technology, various portable electronic devices have been continuously designed and manufactured. The widespread use of portable electronic devices has also promoted the development of user requirements for display devices in the direction of miniaturization, high resolution, and mobility. Driven by these strong demands, projection technology has developed rapidly, and a variety of portable projectors with small size and high performance have appeared on the market. Since multiple application scenarios require dynamic projection, such as homes or large stages, portable projection devices also need to be able to perform multi-directional projection according to user instructions, and need to be synchronized with the projection content to build an immersive experience through the combination of motion and content.
  • the purpose of the present invention is to provide a dynamic projection device, method and projector capable of correcting the distortion of the projection screen.
  • an embodiment of the present invention provides a dynamic projection device, which includes:
  • the projection unit is used to output a projection screen according to the projection image
  • the reflection unit is used to reflect the projection image to the target projection position
  • An angle calculation unit connected to the reflection unit, for calculating the rotation angle of the reflection unit
  • the image correction unit is respectively connected with the angle calculation unit and the projection unit, and is used for correcting the projection image according to the rotation angle.
  • the device further includes:
  • the control unit is connected between the angle calculation unit and the reflection unit, and is configured to control the rotation of the reflection unit according to the rotation angle.
  • the device further includes:
  • the communication unit is connected to the angle calculation unit, and is configured to receive user instruction information and input the user instruction information to the angle calculation unit.
  • the user instruction information includes: target projection position information
  • the instructions are user voice instructions, and/or user gesture instructions, and/or remote control instructions.
  • the device further includes:
  • the spatial modeling unit is connected to the angle calculation unit, and is used to obtain the spatial three-dimensional information of the projection environment, establish a spatial three-dimensional model according to the spatial three-dimensional information, and input the spatial three-dimensional model to the angle calculation unit.
  • an embodiment of the present invention provides a dynamic projection method, and the method includes:
  • the projection image is reflected to the target projection position by the reflection unit.
  • the method before the reflecting the projection image to the target projection position by the reflecting unit, the method further includes:
  • the reflection unit is rotated according to the rotation angle.
  • the calculating the rotation angle of the reflecting unit specifically includes:
  • the rotation angle of the reflecting unit is calculated according to the deflection angle of the projection image.
  • the user instruction information includes: target projection position information
  • the instructions are user voice instructions, and/or user gesture instructions, and/or remote control instructions.
  • the method before the calculating the deflection angle of the projection screen according to the user instruction information, the method further includes:
  • an embodiment of the present invention provides a projector, including: a projection lens, and a microcontroller that controls the projection lens to project a projection image, and the microcontroller can execute such as The dynamic projection method described in the above second aspect.
  • embodiments of the present invention also provide a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer execute The dynamic projection method described in the second aspect above.
  • the embodiments of the present invention also provide a computer program product.
  • the computer program product includes a computer program stored on a computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the method described in the second aspect above.
  • the beneficial effect of the present invention is: different from the prior art, the embodiment of the present invention provides a dynamic projection device, method and projector; the device calculates the reflection unit's For the rotation angle, the projection image is dynamically projected by the reflection unit, and the projection image is corrected by the image correction unit according to the rotation angle of the reflection unit, and finally the projection image is output by the projection unit.
  • the dynamic projection device provided by the embodiment of the present invention has a simple structure, can realize dynamic projection of a projection image, and can correct a projection image.
  • FIG. 1 is a schematic structural diagram of a dynamic projection device provided by an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of another dynamic projection device provided by an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a dynamic projection method provided by an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another dynamic projection method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a sub-flow of the method described in step 220 in FIG. 3;
  • FIG. 6 is a schematic diagram of the relationship between the rotation angle of the reflecting unit and the deflection angle of the projection image provided by an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of another dynamic projection method according to an embodiment of the present invention.
  • FIG. 8(a) is a schematic diagram of the coverage area of the projection area when the dynamic projection device is at the edge of the room according to an embodiment of the present invention
  • FIG. 8(b) is a schematic diagram of the coverage area of the projection area when the dynamic projection device is in the corner of the room according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of coordinates for calculating the deflection angle of a projection image provided by an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a projector provided by an embodiment of the present invention.
  • the existing dynamic projection schemes are not mature enough, and most of them simply move the projection screen, and the moving space is limited. In addition, most of the existing dynamic projection schemes directly move the projector. Since the projector involves multiple components such as digital micromirror chips, heat sinks, light sources, etc., it requires a lot of power when moving, and the control is complicated and easy. Cause a malfunction.
  • the embodiments of the present invention provide a dynamic projection device, method and projector; the device can adjust the projection direction by controlling the reflecting unit and correct the projection image, thereby achieving convenient high-quality dynamics Projection can be used in a variety of scenarios.
  • the invention adjusts the projection direction by controlling the reflective unit with simple structure and very light weight, can realize convenient direction control and high-quality projection display, can cover a wide area of the projection environment, and can be used in various scenes such as homes and stages .
  • the present invention provides an embodiment of a dynamic projection device.
  • FIG. 1 is a schematic structural diagram of a dynamic projection device provided by an embodiment of the present invention.
  • the device 100 includes: a projection unit 110, a reflection unit 120, and an angle calculation The unit 130 and the image correction unit 140.
  • the projection unit 110 is used to output a projection screen according to the projection image. Specifically, the projection unit is used to project content such as pictures and videos desired by the user.
  • the projection unit 110 may be a lens group for magnifying the projection image and outputting a projection image of a preset size.
  • the size of the projection screen is determined by the magnification of the lens group.
  • the reflecting unit 120 is used to reflect the projection image to the target projection position. Specifically, the reflection unit 120 is placed directly opposite to the projection unit 110, and the relative angle with the projection unit 110 can be adjusted to reflect the image projected by the projection unit 110 to the target projection position.
  • the reflecting unit 120 preferably uses optical devices with high reflectivity to ensure the quality of the projected image.
  • the reflecting unit 120 is a reflecting device provided with a rotating mechanism, and the rotating mechanism preferentially adopts a device with a high measurement accuracy of the rotating angle to ensure that the rotating angle of the reflecting unit 120 can be precisely measured and adjusted.
  • the angle calculation unit 130 is connected to the reflection unit 120 and is used to calculate the rotation angle of the reflection unit 120.
  • the angle calculation unit 130 may be a computer with a calculation function.
  • the angle calculation unit 130 may directly measure and obtain the rotation angle of the reflection unit 120. Or, more accurately, the rotation angle of the reflecting unit 120 is calculated by the deflection angle of the projection image. In the following embodiments of the present invention, the deflection angle of the projected image is acquired to calculate the rotation angle of the reflecting unit 120. Specifically, please refer to the following FIG. 6 and related descriptions.
  • the image correction unit 140 is respectively connected to the angle calculation unit 130 and the projection unit 110, and is used to correct the projection image according to the rotation angle.
  • the projection screen when the projection screen can fall on the target projection position due to the rotation of the reflecting unit 120, the projection screen will not only produce “translation” but also "rotation".
  • the “translation” refers to The projection screen is moved to the target projection position.
  • the “rotation” means that the projection screen will be rotated around the projection unit 110 and the distance between the projection screen and the projection unit 110 is the radius. .
  • the projection space since the projection space in which the projection environment is usually located is relatively complicated, the projection space can be simplified into a rectangular parallelepiped. The distance between the projection wall and the projection unit 110 will change before and after the rotation, so the projection is projected to the target projection position. When projecting on the wall, the projection screen will appear distorted. Therefore, it is necessary to correct the projection image according to the rotation angle of the reflection unit 120, so that the projection image is corrected.
  • An embodiment of the present invention provides a dynamic projection device.
  • the device calculates the rotation angle of the reflection unit through an angle calculation unit, performs dynamic projection of the projection screen through the reflection unit, and performs dynamic projection on the projection screen through the image correction unit according to the rotation angle of the reflection unit.
  • the projection screen is corrected, and finally the projection screen is output through the projection unit.
  • the dynamic projection device provided by the embodiment of the present invention has a simple structure, can realize dynamic projection of projected images, and can correct the projection image, thereby realizing convenient high-quality dynamic projection, and can be used in a variety of scenarios.
  • FIG. 2 is a schematic structural diagram of another dynamic projection device provided by an embodiment of the present invention. Based on the dynamic projection device 100 shown in FIG. 1, the device 100 further includes: a control unit 150, The communication unit 160, and the spatial modeling unit 170.
  • the control unit 150 is connected between the angle calculation unit 130 and the reflection unit 120, and is used for controlling the rotation of the reflection unit 120 to a target position according to the rotation angle, thereby controlling the position of the projection screen.
  • the control unit 150 may be a rotating device that can be used to adjust the reflection angle of the reflection unit 120, such as a pan-tilt or a multi-dimensional motion platform.
  • the communication unit 160 is connected to the angle calculation unit 130, and is configured to receive user instruction information and input the user instruction information to the angle calculation unit 130.
  • the user instruction information includes: target projection position information.
  • the instructions are user voice instructions, and/or user gesture instructions, and/or remote control instructions.
  • the user instruction information may be control instructions such as user voice, gestures, etc., or instructions issued through a remote control, or target location information of the projection screen, including target location information specified by the user, and based on user location And the target position information lamp obtained by posture calculation;
  • the correction of the projection content mainly includes auto focus, rotation correction, and keystone correction.
  • the space modeling unit 170 is connected to the angle calculation unit 130, and is used to obtain three-dimensional information of the projection environment, build a three-dimensional model based on the three-dimensional information, and input the three-dimensional model into the angle calculation Unit 130.
  • the angle calculation unit 130 calculates the rotation angle that the reflection unit 120 needs to rotate according to the user instruction information and the spatial three-dimensional information.
  • the spatial three-dimensional information includes: spatial scale information of the projection environment and the position of the dynamic projection device.
  • the spatial three-dimensional model mainly includes the length, width, and height of the projection environment and the position of the dynamic projection device, which can be obtained by manual input or scanning by a related device.
  • the space modeling unit 170 may be an input window, an infrared three-dimensional tester or a camera, or a combination of a rotating motor and a simple tester or a camera.
  • the present invention also provides an embodiment of a dynamic projection method.
  • FIG. 3 is a schematic flowchart of a dynamic projection method provided by an embodiment of the present invention. The method includes but is not limited to the following steps:
  • Step 220 Calculate the rotation angle of the reflection unit.
  • the rotation angle of the reflection unit needs to be calculated, and the rotation angle is used to correct the deformation of the projected image.
  • the rotation angle of the reflection unit can be calculated by the deflection angle of the projection screen. Specifically, please refer to Figure 6 and related descriptions below.
  • Step 230 Correct the projected image according to the rotation angle.
  • the correction of the projected image includes auto focus, rotation correction, and keystone correction.
  • a correspondence table can be established between the projection distance and the position of the projection lens relative to the lens barrel.
  • a three-dimensional space model of the projection environment needs to be acquired. After obtaining the three-dimensional space model of the projection environment, the distance between each projection position and the reflective dynamic projection device can be obtained, and then the position of the projection lens relative to the lens sleeve can be obtained by referring to the correspondence table, and the projection lens can be controlled to move to Auto focus can be achieved at the corresponding position.
  • the rotating mechanism of the reflective dynamic projection device of the present invention is a reflecting unit
  • the reflecting unit rotates in the horizontal direction
  • the viewer no longer remains "face-to-face.”
  • rotation correction is required.
  • the reflecting unit rotates clockwise in the horizontal direction (viewed from top to bottom) by an angle of ⁇
  • the projection screen will rotate by an angle of ⁇ in the counterclockwise direction. At this time, it needs to be rotated clockwise to correct the angle. It is ⁇ ; when the reflection unit rotates counterclockwise (viewed from top to bottom) by ⁇ angle, the projected image will rotate clockwise by ⁇ angle. At this time, it needs to be rotated counterclockwise and the correction angle is ⁇ .
  • a new coordinate is calculated according to the above formula, and thus the corrected image can be obtained. Compared with the original projected image, the corrected new image can be kept "right on” with the viewer.
  • the projection image Since the rotation of the reflecting unit causes the projection image to be deflected on the projection wall, the projection image will appear "trapezoidal" and needs to be corrected. According to the deflection angles ⁇ and ⁇ of the projection image in the horizontal and vertical directions, the corrected projection image can be calculated.
  • Step 240 Output a projected image according to the projected image.
  • the projected image is an image or video screen pre-stored in the projection device for projection, and the projected image is corrected by the correction method described in step 230, and then the projected image is output by the projection unit.
  • the projection screen is usually an enlarged image of the projection image, and the projection unit is usually a magnifying glass group.
  • Step 260 Reflect the projection image to the target projection position by the reflection unit.
  • the projection image when the projection image is projected by the projection unit, the projection image is further reflected in the target projection direction of the projection image to the target projection position by the reflection unit for projection.
  • the embodiment of the present invention provides a dynamic projection method; the method calculates the rotation angle of the reflection unit by the calculation unit, corrects the projection image according to the rotation angle, and outputs the projection image according to the projection image, and finally passes through the reflection unit The projection image is reflected to the target projection position.
  • the dynamic projection method provided by the embodiment of the present invention can realize the dynamic projection of the projected image and can correct the projection image.
  • the method further includes the following steps:
  • Step 250 Rotate the reflection unit according to the rotation angle.
  • a control unit may be provided to control the rotation of the reflection unit. Specifically, it can be realized by the central processing unit sending a serial port command to the control unit for execution, such as a pan-tilt or multi-dimensional motion platform, which can all realize this function.
  • the step 220 specifically includes the following steps:
  • Step 221 Receive user instruction information.
  • the user instruction information includes: target projection position information.
  • the instructions are user voice instructions, and/or user gesture instructions, and/or remote control instructions.
  • Step 222 Calculate the deflection angle of the projection screen according to the user instruction information.
  • Step 223 Calculate the rotation angle of the reflecting unit according to the deflection angle of the projection image.
  • the projection image when the reflection unit moves in the horizontal direction, the projection image produces a horizontal translation. It is not difficult to find that the rotation angle of the reflection unit in the horizontal direction is consistent with the deflection angle of the projection screen in the horizontal direction. That is, if the projection screen is deflected by an angle of ⁇ in the horizontal direction, the horizontal rotation angle of the reflecting unit is also ⁇ .
  • FIG. 6 is a schematic diagram of the relationship between the rotation angle of the reflecting unit and the deflection angle of the projection image according to an embodiment of the present invention.
  • the projection screen produces a vertical translation.
  • the elevation angle of the reflecting unit is ⁇ '
  • the elevation angle of the reflected light of the reflecting unit that is, the deflection angle of the projection image in the vertical direction
  • the angle required to rotate the reflecting unit in the horizontal direction is ⁇
  • the angle required to rotate in the vertical direction is 1/2( ⁇ + ⁇ /2).
  • the method further includes the following steps:
  • Step 211 Obtain spatial three-dimensional information of the projection environment.
  • Step 212 Establish a three-dimensional spatial model according to the three-dimensional spatial information.
  • the acquisition of the spatial three-dimensional information of the projection environment can be achieved by using an infrared three-dimensional tester or a camera to scan the spatial environment, and the main results include the spatial scale information of the projection environment and the location of the projection device.
  • Step 213 Calculate the coverage of the projection area of the projection device in the projection environment according to the three-dimensional space model and the structural constraints of the projection device.
  • the coverage of the calculated projection area may be calculated according to the three-dimensional model of the projection environment and the rotation angle limit of the reflecting unit.
  • Figure 8(a) is a schematic diagram of the coverage area of the projection area of a dynamic projection device provided by an embodiment of the present invention at the edge of a room.
  • Figure 8(b) ) Is a schematic diagram of the coverage area of the projection area when the dynamic projection device is in the corner of the room according to an embodiment of the present invention.
  • the cube is a dynamic projection device
  • the conical curve is the intersection of the edge light and the ceiling, the floor and the side wall.
  • the blind area is within the curve.
  • the length, width, and height of the room are 5 meters, 5 meters, and 3 meters, respectively, and the height of the dynamic projection device in the room is 1 meter.
  • the distance between the mirror and the optical machine is 0.05 meters, and the height of the device housing and the optical machine is the same, it can be calculated that the dynamic projection device has projection blind areas on the ceiling and floor, with a radius of about 1.6 meters, and other areas Can be used as a projection area to display the projection content.
  • Step 214 Calculate the deflection angle of the projection image according to the coverage of the projection area and the user instruction.
  • each projection wall can be treated as a two-dimensional plane, and establishing a Cartesian coordinate system in the plane helps to calculate the deflection angle of the projection image .
  • FIG. 9 is a schematic diagram of coordinates for calculating the deflection angle of the projection image provided by an embodiment of the present invention.
  • the vertical distance between the dynamic projection device and the projection wall is z
  • the coordinates of the point where the dynamic projection device faces the projection wall are set to (0, 0)
  • the horizontal to right direction is recorded as the x axis
  • the vertical The straight up direction is recorded as the y-axis.
  • the center point of the projection screen is at the coordinate (0,0)
  • the deflection angles ⁇ and ⁇ of the projected image in the horizontal and vertical directions can be obtained. Substituting the deflection angles ⁇ and ⁇ in the horizontal and vertical directions into step 223 above, and further, the rotation angle of the reflecting unit can be calculated.
  • the present invention also provides an embodiment of a projector.
  • FIG. 10 is a schematic structural diagram of a projector provided by an embodiment of the present invention.
  • the projector 300 includes a projection lens 310 and controls the projection lens.
  • a micro-controller 320 for projecting a projection screen, and the micro-controller 320 can execute the dynamic projection method as described in the above embodiment.
  • the projection lens 310 is a lens capable of projecting a projection image, and the projection lens 310 includes, but is not limited to, the projection unit 110 and the reflection unit 120 described in the foregoing device embodiment.
  • the projection lens 310 is a mechanical device in the projector 300 for outputting the projection image calculated and processed by the micro-controller 320 as a projection image.
  • the microcontroller 320 is a microcomputer used to set various parameters, obtain various parameters, store various parameters, receive various information, process various information, and send various information and instructions.
  • the micro-controller 320 is used to calculate the rotation angle of the reflection unit, correct the projected image according to the rotation angle, and control the projection lens 310 to output instructions for projecting images, thereby realizing dynamic projection.
  • the microcontroller 320 includes, but is not limited to, all the modules in the above device embodiments.
  • the data transmission mode/communication mode/connection mode of the projection lens 310 and the micro-controller 320 in practical applications may be wired or wirelessly connected.
  • the projection lens 310 and the microcontroller 320 may be connected via a bus.
  • the projection lens 310 and the micro-controller 320 may be one device installed as a whole, or two or more independent devices with one or more modules independently installed.
  • the micro-controller 320 can execute the dynamic projection method provided by the embodiment of the present invention, and has corresponding functional modules and beneficial effects for the execution method. For technical details not described in detail in this embodiment, refer to the dynamic projection method provided in the embodiment of the present invention.
  • the embodiment of the present invention is an embodiment of a computer-readable storage medium provided by the present invention.
  • the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by one or more processors, such as the microcontroller 320 in FIG. 10, which can cause the one or more processors to execute any of the foregoing
  • the trend projection method in the method embodiment for example, executes the method step 220 to step 260 in FIG. 3 described above, and/or the method step 250 in FIG. 4, and/or the method step 211 to step 214 in FIG. 6 , To realize the functions of the units 110-140 in Fig. 1 and/or the functions of the units 110-170 in Fig. 2.
  • each implementation manner can be implemented by software plus a general hardware platform, and of course, it can also be implemented by hardware.
  • Those of ordinary skill in the art can understand that all or part of the processes in the methods of the foregoing embodiments can be implemented by computer programs instructing relevant hardware.
  • the programs can be stored in a non-transitory computer-readable storage medium. When the program is executed, it may include the processes of the above-mentioned method embodiments.
  • the instructions are stored in a microcontroller, which can be various types of microcomputers.
  • the computer-readable storage medium can execute the dynamic projection method provided by the embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.
  • the dynamic projection method provided in the embodiment of the present invention can execute the dynamic projection method provided by the embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.
  • the embodiment of the present invention is an embodiment of a computer program product provided by the present invention.
  • the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes the above-mentioned dynamic projection method. For example, execute the method steps 220 to 260 in FIG. 3 described above, and/or the method step 250 in FIG. 4, and/or the method steps 211 to 214 in FIG. 6, to realize the unit 110- in FIG. 140, and/or the functions of units 110-170 in Figure 2.
  • the product can execute the dynamic projection method provided by the embodiment of the present invention, and has corresponding functional modules and beneficial effects for the execution method.
  • the product can execute the dynamic projection method provided by the embodiment of the present invention, and has corresponding functional modules and beneficial effects for the execution method.
  • the embodiment of the present invention provides a dynamic projection device, method, and projector; the device calculates the rotation angle of the reflection unit through an angle calculation unit, dynamically projects the projection screen through the reflection unit, and uses the image correction unit according to the reflection The rotation angle of the unit corrects the projection screen, and finally the projection screen is output through the projection unit.
  • the dynamic projection device provided by the embodiment of the present invention has a simple structure, can realize dynamic projection of a projection image, and can correct a projection image.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Optics & Photonics (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Projection Apparatus (AREA)

Abstract

本发明实施例涉及数字投影显示技术领域，公开了一种动向投影装置、方法及投影仪；该装置能够通过控制反射单元以调整投影方向，并对投影画面进行校正处理，从而实现便捷的高质量动向投影，可在多种场景使用。本发明通过控制结构简单且质量很轻的反射单元来调整投影方向，可以实现便捷的方向控制和高质量的投影显示，可以覆盖投影环境的广泛区域，可以在居家、舞台等多种场景中应用。

Description

动向投影装置、方法及投影仪 技术领域
本发明涉及数字投影显示技术领域，特别涉及一种动向投影装置、方法及投影仪。
背景技术
随着半导体显示技术的快速发展，各种各样的便携式电子设备被不断地设计制造出来。便携式电子设备的广泛使用又推动用户对显示器件的要求朝微型、高分辨率、可移动的方向发展。在这些强大需求的推动下，投影技术发展迅速，市面上已出现多种体积小性能高的便携式投影机。由于多种应用场景需要动向投影，例如家庭或者大型舞台，便携式投影设备还需要能够根据用户指令进行多方向投影，并且需要与投影内容同步，通过运动和内容的结合构建出沉浸式的体验。
在实现本发明过程中，发明人发现以上相关技术中至少存在如下问题：目前，大多数的便携式动向投影设备采用的动向投影方案不够成熟，只是简单地对投影画面进行移动，通常会导致投影画面投影到目标投影位置时产生形变。
发明内容
针对现有技术的上述缺陷，本发明的目的是提供一种能够校正投影画面形变的动向投影装置、方法及投影仪。
本发明的目的是通过如下技术方案实现的：
为解决上述技术问题，第一方面，本发明实施例中提供了一种动向投影装置，所述装置包括：
投影单元，用于根据投影图像输出投影画面；
反射单元，用于将所述投影画面反射至目标投影位置；
角度计算单元，与所述反射单元连接，用于计算所述反射单元的转动角度；
图像校正单元，分别与所述角度计算单元和所述投影单元连接，用于根据所述转动角度校正所述投影图像。
可选地，所述装置还包括：
控制单元，连接在所述角度计算单元和所述反射单元之间，用于根据所述转动角度控制所述反射单元转动。
可选地，所述装置还包括：
通信单元，与所述角度计算单元连接，用于接收用户指令信息并将所述用户指令信息输入至所述角度计算单元。
可选地，所述用户指令信息包括：目标投影位置信息；
所述指令为用户语音指令，和/或用户手势指令，和/或遥控器指令。
可选地，所述装置还包括：
空间建模单元，与所述角度计算单元连接，用于获取投影环境的空间三维信息，根据所述空间三维信息建立空间三维模型，并将所述空间三维模型输入至所述角度计算单元。
为解决上述技术问题，第二方面，本发明实施例中提供了一种动向投影方法，所述方法包括：
计算反射单元的转动角度；
根据所述转动角度校正投影图像；
根据所述投影图像输出投影画面；
通过所述反射单元将所述投影画面反射至目标投影位置。
可选地，在所述通过所述反射单元将所述投影画面反射至目标投影位置之前，所述方法还包括：
根据所述转动角度转动所述反射单元。
可选地，所述计算反射单元的转动角度，具体包括：
接收用户指令信息；
根据所述用户指令信息计算所述投影画面的偏转角度；
根据所述投影画面的偏转角度计算所述反射单元的转动角度。
可选地，所述用户指令信息包括：目标投影位置信息；
所述指令为用户语音指令，和/或用户手势指令，和/或遥控器指令。
可选地，在所述根据所述用户指令信息计算所述投影画面的偏转角度之前，所述方法还包括：
获取投影环境的空间三维信息；
根据所述空间三维信息建立空间三维模型；
根据所述空间三维模型和投影装置的结构限制计算出在所述投影环境中所述投影装置的投影区域的覆盖范围；
根据所述投影区域的覆盖范围和所述用户指令计算所述投影画面的偏转角度。
为解决上述技术问题，第三方面，本发明实施例提供了一种投影仪，包括：投影镜头，以及控制所述投影镜头对投影画面进行投影的微型控制器，所述微型控制器能够执行如上述第二方面所述的动向投影方法。
为解决上述技术问题，第四方面，本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使计算机执行如上第二方面所述的动向投 影方法。
为解决上述技术问题，第五方面，本发明实施例还提供了一种计算机程序产品，所述计算机程序产品包括存储在计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行如上第二方面所述的方法。
与现有技术相比，本发明的有益效果是：区别于现有技术的情况，本发明实施例中提供了一种动向投影装置、方法及投影仪；该装置通过角度计算单元计算反射单元的转动角度，通过反射单元对投影画面进行动向投影，并通过图像校正单元根据所述反射单元的转动角度对投影图像进行校正，最后通过投影单元输出投影画面。本发明实施例提供的动向投影装置结构简单，能够实现投影图像的动向投影，且能够校正投影画面。
附图说明
一个或多个实施例中通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件/模块和步骤表示为类似的元件/模块和步骤，除非有特别申明，附图中的图不构成比例限制。
图1是本发明实施例提供的一种动向投影装置的结构示意图；
图2是本发明实施例提供的另一种动向投影装置的结构示意图；
图3是本发明实施例提供的一种动向投影方法的流程示意图；
图4是本发明实施例提供的另一种动向投影方法的流程示意图；
图5是图3中步骤220所述方法的子流程示意图；
图6是本发明实施例提供的一种反射单元转动角度和投影画面偏转角度的关系示意图；
图7是本发明实施例提供的另一种动向投影方法的流程示意图；
图8(a)是本发明实施例提供的一种动向投影装置在房间边缘时投影区域的覆盖范围示意图；
图8(b)是本发明实施例提供的一种动向投影装置在房间角落时投影区域的覆盖范围示意图；
图9是本发明实施例提供的一种计算投影画面偏转角度的坐标示意图；
图10是本发明实施例提供的一种投影仪的结构示意图。
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明，但不以任何形式限制本发明。应当指出的是，对本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进。这些都属于本发明的保护范围。
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
需要说明的是，如果不冲突，本发明实施例中的各个特征可以相互结合，均在本申请的保护范围之内。另外，虽然在装置示意图中进行了功能模块划分，在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于装置中的模块划分，或流程图中的顺序执行所示出或描述的步 骤。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本实用新型的技术领域的技术人员通常理解的含义相同。本说明书中在本实用新型的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是用于限制本实用新型。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。
现有的动向投影方案还不够成熟，大多只是对投影画面进行简单的移动，移动空间有限。另外，现有动向投影方案大多直接对投影光机进行移动，由于投影光机涉及数字微镜晶片、散热片、光源等多种元器件，因此移动时需要较大的动力，而且控制复杂，容易造成故障。
为了解决上述问题，本发明实施例中提供了一种动向投影装置、方法及投影仪；该装置能够通过控制反射单元以调整投影方向，并对投影画面进行校正处理，从而实现便捷的高质量动向投影，可在多种场景使用。本发明通过控制结构简单且质量很轻的反射单元来调整投影方向，可以实现便捷的方向控制和高质量的投影显示，可以覆盖投影环境的广泛区域，可以在居家、舞台等多种场景中应用。
具体地，下面结合附图，对本发明实施例作进一步阐述。
本发明提供了一种动向投影装置的实施例，请参见图1，为本发明实施例提供的一种动向投影装置的结构示意图，所述装置100包括：投影单元110、反射单元120、角度计算单元130和图像校正单元140。
所述投影单元110用于根据投影图像输出投影画面。具体地，所述投影单元用于投影用户想要的画面、视频等内容。
在本发明实施例中，所述投影单元110可以是镜片组，用于放大投影图像，输出预设大小的投影画面。所述投影画面的大小由所述镜片组的放大倍数决定。
所述反射单元120用于将所述投影画面反射至目标投影位置。具体地，所述反射单元120正对投影单元110放置，可以调节与投影单元110的相对角度，用于将投影单元110投射出的画面反射至目标投影位置。
在本发明实施例中，所述反射单元120优先采用反射率高的光学器件，以保证投影画面的质量。且所述反射单元120为设置有转动机构的反射装置，该转动机构优先采用转动角度的测量精度较高的装置，以保证所述反射单元120的转动角度的能够被精密测量和调整。
所述角度计算单元130与所述反射单元120连接，用于计算所述反射单元120的转动角度。
在本发明实施例中，所述角度计算单元130可以是一种具有计算功能的计算机。所述角度计算单元130可以直接测量获取所述反射单元120的转动角度。或者，更精确地，通过投影画面的偏转角度来计算得到所述反射单元120的转动角度。在下述本发明实施例中，采用获取投影画面的偏转角度来计算所述反射单元120的转动角度，具体地，请参见下述图6及其相关说明。
所述图像校正单元140分别与所述角度计算单元130和所述投影单元110连接，用于根据所述转动角度校正所述投影图像。
在本发明实施例中，由于所述反射单元120旋转使得所述投影画面能够落在目标投影位置时，投影画面不仅会产生“平移”，还会产生“旋转”，所述“平移”指的是投影画面移动到目标投影位置，所述“旋转”指的是所述投影画面会以所述投影单元110为中心，以所述投影画面到所述投影单元110之间的距离为半径旋转移动。此时，由于通常投影环 境所在的投影空间较为复杂，所述投影空间可以简化为一个长方体，旋转前后投影墙面和所述投影单元110之间的距离会产生变化，因此投影到目标投影位置所在投影墙面上时，投影画面会出现形变。因此，需要根据所述反射单元120的转动角度校正所述投影图像，从而使得投影画面得到校正。
本发明实施例中提供了一种动向投影装置，该装置通过角度计算单元计算反射单元的转动角度，通过反射单元对投影画面进行动向投影，并通过图像校正单元根据所述反射单元的转动角度对投影画面进行校正，最后通过投影单元输出投影画面。本发明实施例提供的动向投影装置结构简单，能够实现投影图像的动向投影，且能够校正投影画面，从而实现便捷的高质量动向投影，可在多种场景使用。
在一些实施例中，请参见图2，为本发明实施例提供的另一种动向投影装置的结构示意图，基于图1所示的动向投影装置100，所述装置100还包括：控制单元150、通信单元160、和空间建模单元170。
所述控制单元150连接在所述角度计算单元130和所述反射单元120之间，用于根据所述转动角度控制所述反射单元120转动至目标位置，进而控制投影画面的位置。具体地，所述控制单元150可以是云台或多维运动台等能够用于调整所述反射单元120反射角度的转动装置。
所述通信单元160与所述角度计算单元130连接，用于接收用户指令信息并将所述用户指令信息输入至所述角度计算单元130。其中，所述用户指令信息包括：目标投影位置信息。所述指令为用户语音指令，和/或用户手势指令，和/或遥控器指令。
具体地，所述用户指令信息可以是用户语音、手势等控制指令，也可以是通过遥控器发出的指令，还可以是投影画面的目标位置信息，包括用户指定的目标位置信息，以及根据用户位置及姿态计算得到的目标 位置信息灯；所述对投影内容进行校正主要包括自动对焦、旋转校正及梯形校正等。
所述空间建模单元170与所述角度计算单元130连接，用于获取投影环境的空间三维信息，根据所述空间三维信息建立空间三维模型，并将所述空间三维模型输入至所述角度计算单元130。所述角度计算单元130根据所述用户指令信息和所述空间三维信息计算所述反射单元120需要转动的转动角度。其中，所述空间三维信息包括：投影环境的空间尺度信息以及所述动向投影装置的位置。
具体地，所述空间三维模型主要包括投影环境的长度、宽度、高度以及所述动向投影装置所处的位置，可以通过人工输入，也可以通过相关装置扫描获得。所述空间建模单元170可以为输入窗口，也可以是红外三维测试仪或者摄像机，也可以是旋转电机和简单测试仪或摄像机的组合。
本发明还提供了一种动向投影方法的实施例，请参见图3，为本发明实施例提供的一种动向投影方法的流程示意图，所述方法包括但不限于以下步骤：
步骤220：计算反射单元的转动角度。
在本发明实施例中，需要对所述反射单元的转动角度进行计算，所述转动角度用于校正投影图像的形变情况，可以通过投影画面的偏转角度来计算得到所述反射单元的转动角度。具体地，请参见下述图6及其相关说明。
步骤230：根据所述转动角度校正投影图像。
在本发明实施例中，所述对投影图像进行校正，包括自动对焦、旋转校正和梯形校正等。对于特定的投影仪，可以建立投影距离与投影镜 头相对镜头套筒的位置信息的对应表。在本发明动向投影方法中，结合下述步骤211至步骤213和图7可知，在所述步骤220之前，还需要获取投影环境的三维空间模型。在得到所述投影环境的三维空间模型后，可以得到每一个投影位置距离所述反射式动向投影装置的距离，进而可以通过查阅对应表得到投影镜头相对镜头套筒的位置，控制投影镜头移动至相应位置即可实现自动对焦。
由于本发明反射式动向投影装置的转动机构为反射单元，而当反射单元在水平方向转动时，不仅会导致投影画面产生“平移”，还会导致投影画面产生“旋转”，此时投影画面与观看者不再保持“正对”。为保证投影画面始终保持正对观看者角度，需要进行旋转校正。通过分析可以得出，当反射单元沿水平方向顺时针转动(从上往下看)α角度时，投影画面会沿逆时针方向旋转α角度，此时需要对其进行顺时针旋转校正，校正角度为α；当反射单元逆时针转动(从上往下看)α角度时，投影画面会沿顺时针方向旋转α角度，此时需要对其进行逆时针旋转校正，校正角度为α。
假设投影内容为图像，假设某像素点的坐标为(x,y)，对其沿逆时针方向旋转α角度，新的坐标变为(x',y')，可以通过下式计算得到：
Figure PCTCN2019103835-appb-000001
对原始图像中的每一个像素，根据以上公式计算得到新的坐标，由此即可得到校正后的图像。相对于原始的投影图像，校正后的新图像可以和观看者保持“正对”。
由于反射单元转动使得投影画面在投影墙面发生偏转，因此投影画面会呈现“梯形”，需要进行校正。根据投影画面在水平和竖直方向的偏转角度α和β，可以计算得到校正后的投影图像。
步骤240：根据所述投影图像输出投影画面。
在本发明实施例中，所述投影图像为预先存储在投影装置中用于投影的图像或视频画面，所述投影图像经上述步骤230所述的校正方法校正后，通过投影单元输出投影画面。所述投影画面通常为所述投影图像的放大图像，所述投影单元通常为放大镜片组。
步骤260：通过所述反射单元将所述投影画面反射至目标投影位置。
在本发明实施例中，所述投影图像经所述投影单元投影时，还通过所述反射单元将所述投影画面杨目标投影的方向反射到目标投影位置进行投影。
本发明实施例中提供了一种动向投影方法；该方法通过计算单元计算反射单元的转动角度，根据所述转动角度校正投影图像，并根据所述投影图像输出投影画面，最后通过所述反射单元将所述投影画面反射至目标投影位置。本发明实施例提供的动向投影方法能够实现投影图像的动向投影，且能够校正投影画面。
在一些实施例中，请参见图4，基于图3所示的动向投影方法，所述方法还包括以下步骤：
步骤250：根据所述转动角度转动所述反射单元。
在本发明实施例中，可以通过设置有控制单元用于控制述反射单元转动。具体地，可以通过中央处理单元发出串口指令至控制单元执行来实现，如云台或者多维运动台，均可实现这一功能。
在一些实施例中，请参见图5，所述步骤220具体包括以下步骤：
步骤221：接收用户指令信息。其中，所述用户指令信息包括：目标投影位置信息。所述指令为用户语音指令，和/或用户手势指令，和/或遥控器指令。
步骤222：根据所述用户指令信息计算所述投影画面的偏转角度。
步骤223：根据所述投影画面的偏转角度计算所述反射单元的转动 角度。
在本发明实施例中，当反射单元在水平方向运动时，投影画面产生水平方向的平移。不难发现，反射单元在水平方向的转动角度与投影画面在水平方向的偏转角度一致。即：投影画面在水平方向偏转α角度，则反射单元的水平转动角度也为α。
且有，请一并参见图6，为本发明实施例提供的一种反射单元转动角度和投影画面偏转角度的关系示意图。当反射单元在竖直方向运动时，投影画面产生竖直方向的平移。如图6所示，假设反射单元的仰角为β'，反射单元的反射光线(即投影画面在竖直方向的偏转角度)相对于水平线的仰角为β，则从下图可以看出：
Figure PCTCN2019103835-appb-000002
显然，当β>π/4时，β>0，即投影画面高于水平线，反之则低于水平线。进一步可以得到：
Figure PCTCN2019103835-appb-000003
综上可以得到，当投影画面在水平和竖直方向的偏转角度分别为α和β时，反射单元在水平方向需要转动的角度为α，在竖直方向需要转动的角度为1/2(β+π/2)。
在一些实施例中，请参见图7，基于图5所示的方法，在步骤222之前，所述方法还包括以下步骤：
步骤211：获取投影环境的空间三维信息。
步骤212：根据所述空间三维信息建立空间三维模型。
具体地，所述获取投影环境的空间三维信息可以通过利用红外三维测试仪或者摄像机扫描空间环境实现，主要结果包括投影环境的空间尺 度信息以及投影装置所处的位置。
步骤213：根据所述空间三维模型和投影装置的结构限制计算出在所述投影环境中所述投影装置的投影区域的覆盖范围。
在本发明实施例中，所述计算投影区域的覆盖范围可以根据投影环境的三维模型以及所述反射单元的转动角度限制计算得到。
例如，请一并参见图8(a)和图8(b)，图8(a)为本发明实施例提供的一种动向投影装置在房间边缘时投影区域的覆盖范围示意图，图8(b)为本发明实施例提供的一种动向投影装置在房间角落时投影区域的覆盖范围示意图。其中，正方体为动向投影装置，圆锥形曲线为边缘光线与天花板、地板和侧墙面的交线，在曲线范围内即为盲区。
具体地，在图8(a)和图8(b)中，假设房间的长、宽、高分别为5米、5米和3米，所述动向投影装置在房间内的高度为1米，反射单元水平放置时镜面与光机的距离为0.05米，装置外壳与光机的高度相同，则可以计算得出所述动向投影装置在天花板和地板存在投影盲区，半径约为1.6米，其他区域均可作为投影区域展示投影内容。
步骤214：根据所述投影区域的覆盖范围和所述用户指令计算所述投影画面的偏转角度。
在本发明实施例中，在获取到投影环境的三维空间模型后，可以将每一个投影墙面作为一个二维平面进行处理，在平面内建立笛卡尔坐标系有助于计算投影画面的偏转角度。
例如，请一并参见图9，为本发明实施例提供的一种计算投影画面偏转角度的坐标示意图。假设所述动向投影装置与投影墙面的垂直距离为z，将所述动向投影装置正对投影墙面的点的坐标设为(0,0)，水平向右的方向记为x轴，竖直向上的方向记为y轴。投影画面的中心点位于坐标(0,0)时，认为投影画面未出现偏转。若希望将投影画面的中心置 于位置(x,y)，则需要使投影画面在水平方向偏转α角度，在竖直方向偏转β角度。根据三角函数关系，可以得到：
Figure PCTCN2019103835-appb-000004
Figure PCTCN2019103835-appb-000005
由此，即可求出投影画面在水平方向和竖直方向上的偏转角度α和β。将所述在水平方向和竖直方向上的偏转角度α和β代入上述步骤223中，进一步地，可以计算得到所述反射单元的转动角度。
本发明还提供了一种投影仪的实施例，请参见图10，为本发明实施例提供的一种投影仪的结构示意图，所述投影仪300包括：投影镜头310，以及控制所述投影镜头310对投影画面进行投影的微型控制器320，所述微型控制器320能够执行如上述实施例所述的动向投影方法。
所述投影镜头310为能够对投影画面进行投影的镜头，所述投影镜头310包括但不限于上述装置实施例所述的投影单元110和反射单元120。所述投影镜头310为投影仪300内的机械装置，用于将所述微型控制器320计算处理后的投影图像输出为投影画面。
所述微型控制器320为一个微型计算机，用于设定各种参数、获取各种参数、存储各种参数、接收各种信息、处理各种信息以及发送各种信息和指令。所述微型控制器320用于计算反射单元的转动角度，根据转动角度校正投影图像，并控制所述投影镜头310输出投影画面的指令，进而实现动态投影。
所述微型控制器320包含但不限定于如上述装置实施例中的所有模块。所述投影镜头310和所述微型控制器320在实际应用中的数据传输方式/通讯方式/连接方式，可以是有线连接的，也可以是无线连接的。 例如，所述投影镜头310和所述微型控制器320可以通过总线连接。所述投影镜头310和所述微型控制器320可以是安装为一体的一个装置，也可以是某一个或者多个模块独立设置的两个以上的独立装置。
所述微型控制器320可执行本发明实施例所提供的动向投影方法，具备执行方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本发明实施例所提供的动向投影方法。
本发明实施例为本发明提供的一种计算机可读存储介质的实施例。
所述计算机可读存储介质存储有计算机可执行指令，该计算机可执行指令被一个或多个处理器执行，例如图10中的微型控制器320，可使得上述一个或多个处理器执行上述任意方法实施例中的动向投影方法，例如，执行以上描述的图3中的方法步骤220至步骤260，和/或图4中的方法步骤250，和/或图6中的方法步骤211至步骤214，实现图1中的单元110-140的功能，和/或图2中的单元110-170的功能。
通过以上的实施方式的描述，本领域普通技术人员可以清楚地了解到各实施方式可以通过软件加通用硬件平台的方式来实现，当然也可以通过硬件。本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一非暂态计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述指令存储在微型控制器内，可为各类微型计算机。
所述计算机可读存储介质可执行本发明实施例所提供的动向投影方法，具备执行方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本发明实施例所提供的动向投影方法。
本发明实施例为本发明提供的一种计算机程序产品的实施例。
所述计算机程序产品包括存储在计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行如上所述的动向投影方法。例如，执行以上描述的图3中的方法步骤220至步骤260，和/或图4中的方法步骤250，和/或图6中的方法步骤211至步骤214，实现图1中的单元110-140的功能，和/或图2中的单元110-170的功能。
所述产品可执行本发明实施例所提供的动向投影方法，具备执行方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本发明实施例所提供的动向投影方法。
本发明实施例中提供了一种动向投影装置、方法及投影仪；该装置通过角度计算单元计算反射单元的转动角度，通过反射单元对投影画面进行动向投影，并通过图像校正单元根据所述反射单元的转动角度对投影画面进行校正，最后通过投影单元输出投影画面。本发明实施例提供的动向投影装置结构简单，能够实现投影图像的动向投影，且能够校正投影画面。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；在本发明的思路下，以上实施例或不同实施例中的技术特征之间也可以进行组合，并存在如上所述的本发明的不同方面的许多其它变化，为了简明，它们没有在细节中提供；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例中所记载的技术方案进行修改，或者对其中区域技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例中技术方案的范围。

Claims (11)

  1. 一种动向投影装置，其特征在于，所述装置包括：
    投影单元，用于根据投影图像输出投影画面；
    反射单元，用于将所述投影画面反射至目标投影位置；
    角度计算单元，与所述反射单元连接，用于计算所述反射单元的转动角度；
    图像校正单元，分别与所述角度计算单元和所述投影单元连接，用于根据所述转动角度校正所述投影图像。
  2. 根据权利要求1所述的动向投影装置，其特征在于，所述装置还包括：
    控制单元，连接在所述角度计算单元和所述反射单元之间，用于根据所述转动角度控制所述反射单元转动。
  3. 根据权利要求1所述的动向投影装置，其特征在于，所述装置还包括：
    通信单元，与所述角度计算单元连接，用于接收用户指令信息并将所述用户指令信息输入至所述角度计算单元。
  4. 根据权利要求3所述的动向投影装置，其特征在于，
    所述用户指令信息包括：目标投影位置信息；
    所述指令为用户语音指令，和/或用户手势指令，和/或遥控器指令。
  5. 根据权利要求1所述的动向投影装置，其特征在于，所述装置还包括：
    空间建模单元，与所述角度计算单元连接，用于获取投影环境的空间三维信息，根据所述空间三维信息建立空间三维模型，并将所述空间三维模型输入至所述角度计算单元。
  6. 一种动向投影方法，其特征在于，所述方法包括：
    计算反射单元的转动角度；
    根据所述转动角度校正投影图像；
    根据所述投影图像输出投影画面；
    通过所述反射单元将所述投影画面反射至目标投影位置。
  7. 根据权利要求6所述的动向投影方法，其特征在于，在所述通过所述反射单元将所述投影画面反射至目标投影位置之前，所述方法还包括：
    根据所述转动角度转动所述反射单元。
  8. 根据权利要求6所述的动向投影方法，其特征在于，所述计算反射单元的转动角度，具体包括：
    接收用户指令信息；
    根据所述用户指令信息计算所述投影画面的偏转角度；
    根据所述投影画面的偏转角度计算所述反射单元的转动角度。
  9. 根据权利要求8所述的动向投影方法，其特征在于，
    所述用户指令信息包括：目标投影位置信息；
    所述指令为用户语音指令，和/或用户手势指令，和/或遥控器指令。
  10. 根据权利要求8所述的动向投影方法，其特征在于，在所述根据所述用户指令信息计算所述投影画面的偏转角度之前，所述方法还包括：
    获取投影环境的空间三维信息；
    根据所述空间三维信息建立空间三维模型；
    根据所述空间三维模型和投影装置的结构限制计算出在所述投影环境中所述投影装置的投影区域的覆盖范围；
    根据所述投影区域的覆盖范围和所述用户指令计算所述投影画面的偏转角度。
  11. 一种投影仪，其特征在于，包括：投影镜头，以及控制所述投影镜头对投影画面进行投影的微型控制器，所述微型控制器能够执行如权利要求6-10任一项所述的动向投影方法。
PCT/CN2019/103835 2019-06-19 2019-08-30 动向投影装置、方法及投影仪 WO2020252934A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/226,728 US11402732B2 (en) 2019-06-19 2021-04-09 Dynamic projection device, method and projector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910533118.3A CN110191328A (zh) 2019-06-19 2019-06-19 一种动向投影装置、方法及投影仪
CN201910533118.3 2019-06-19

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/226,728 Continuation US11402732B2 (en) 2019-06-19 2021-04-09 Dynamic projection device, method and projector

Publications (1)

Publication Number Publication Date
WO2020252934A1 true WO2020252934A1 (zh) 2020-12-24

Family

ID=67722434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/103835 WO2020252934A1 (zh) 2019-06-19 2019-08-30 动向投影装置、方法及投影仪

Country Status (3)

Country Link
US (1) US11402732B2 (zh)
CN (1) CN110191328A (zh)
WO (1) WO2020252934A1 (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111322949B (zh) * 2020-04-10 2022-03-11 广景视睿科技（深圳）有限公司 一种墙面标定的方法以及一种边标定的方法
CN111610688B (zh) * 2020-05-26 2022-01-11 广景视睿科技（深圳）有限公司 一种自动调节投影装置
CN112738491B (zh) * 2020-12-29 2022-12-02 视田科技（天津）有限公司 一种投影反射画面的校正方法
US11856339B2 (en) 2020-12-31 2023-12-26 Iview Displays (Shenzhen) Company Ltd. Automatic focusing projection method and system
CN112822469B (zh) * 2020-12-31 2022-04-12 广景视睿科技（深圳）有限公司 一种自动对焦投影方法及系统
CN114791687B (zh) * 2021-03-05 2024-02-27 成都极米科技股份有限公司 投影校正方法、装置及投影系统
CN113259653A (zh) * 2021-04-14 2021-08-13 广景视睿科技（深圳）有限公司 一种定制动向投影的方法、装置、设备及系统
CN113596419B (zh) * 2021-07-16 2022-10-14 广景视睿科技（深圳）有限公司 一种控制投影设备的方法、装置及电子设备
CN115840327A (zh) * 2021-09-21 2023-03-24 卡西欧计算机株式会社 投影处理装置、投影系统、方法及记录有程序的记录介质
CN113766201B (zh) * 2021-09-29 2024-07-23 深圳市火乐科技发展有限公司 投影图像旋转装置及投影设备
CN113938661B (zh) * 2021-09-29 2024-05-07 漳州万利达科技有限公司 一种投影仪侧投校正方法、终端设备及存储介质
CN114257799B (zh) * 2021-11-15 2024-07-26 深圳市普渡科技有限公司 机器人、投影方法和存储介质
CN114222102A (zh) * 2022-02-08 2022-03-22 峰米(重庆)创新科技有限公司 投影设备及其调整方法、控制装置、可读存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800962A (zh) * 2005-01-07 2006-07-12 精工爱普生株式会社 投影控制系统、投影机及投影控制方法
CN105262968A (zh) * 2015-10-22 2016-01-20 神画科技（深圳）有限公司 自动调整投影画面位置的投影系统及其投影方法
CN107024825A (zh) * 2017-06-16 2017-08-08 广景视睿科技（深圳）有限公司 跟随投影装置及其投影方法
CN107065409A (zh) * 2017-06-08 2017-08-18 广景视睿科技（深圳）有限公司 动向投影装置及其工作方法
US20170269360A1 (en) * 2016-03-16 2017-09-21 Panasonic Intellectual Property Management Co., Ltd. Image display system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7980703B2 (en) * 2007-03-26 2011-07-19 Casio Computer Co., Ltd. Projector
JP2009229563A (ja) 2008-03-19 2009-10-08 Seiko Epson Corp プロジェクタ、および反射装置
DE102010030138A1 (de) * 2010-06-15 2011-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Projektionsdisplay und Verfahren zum Anzeigen eines Gesamtbilds
JP2013057785A (ja) * 2011-09-08 2013-03-28 Ushio Inc レーザ光源装置および画像投影装置
JP6157065B2 (ja) * 2012-06-08 2017-07-05 キヤノン株式会社 投影装置およびその制御方法
JP6053171B2 (ja) * 2013-10-18 2016-12-27 増田　麻言 走査型投影装置、および携帯型投影装置
CN108028901B (zh) * 2015-09-16 2020-04-21 富士胶片株式会社 投影型显示装置及投影控制方法
US10104351B2 (en) * 2016-03-10 2018-10-16 Panasonic Intellectual Property Management Co., Ltd. Projection system and calibration apparatus
CN108243332B (zh) * 2016-12-23 2024-04-12 深圳点石创新科技有限公司 车载抬头显示系统影像调节方法及车载抬头显示系统
CN108319171B (zh) * 2018-02-09 2020-08-07 广景视睿科技（深圳）有限公司 一种基于语音控制的动向投影方法、装置及动向投影系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800962A (zh) * 2005-01-07 2006-07-12 精工爱普生株式会社 投影控制系统、投影机及投影控制方法
CN105262968A (zh) * 2015-10-22 2016-01-20 神画科技（深圳）有限公司 自动调整投影画面位置的投影系统及其投影方法
US20170269360A1 (en) * 2016-03-16 2017-09-21 Panasonic Intellectual Property Management Co., Ltd. Image display system
CN107065409A (zh) * 2017-06-08 2017-08-18 广景视睿科技（深圳）有限公司 动向投影装置及其工作方法
CN107024825A (zh) * 2017-06-16 2017-08-08 广景视睿科技（深圳）有限公司 跟随投影装置及其投影方法

Also Published As

Publication number Publication date
CN110191328A (zh) 2019-08-30
US11402732B2 (en) 2022-08-02
US20210223670A1 (en) 2021-07-22

Similar Documents

Publication Publication Date Title
WO2020252934A1 (zh) 动向投影装置、方法及投影仪
JP4108609B2 (ja) カメラ付きプロジェクタをキャリブレーションする方法
CN110099266B (zh) 投影机画面校正方法、装置及投影机
WO2019144666A1 (zh) 一种投影画面自动校正方法、装置和电子设备
WO2021092885A1 (zh) 控制投影模块投影的方法、装置和投影系统
US9348212B2 (en) Image projection system and image projection method
KR101669780B1 (ko) 웨어러블 장치의 프로젝션을 제어하기 위한 방법 및 디바이스, 및 웨어러블 장치
US9338447B1 (en) Calibrating devices by selecting images having a target having fiducial features
JP6645687B2 (ja) 表示装置及び制御方法
JP2005227661A (ja) プロジェクタおよび歪補正方法
CN104750443A (zh) 一种显示控制方法及电子设备
WO2012163259A1 (zh) 视频会议系统调整的方法及装置
CN114827564A (zh) 投影设备控制方法、装置、存储介质以及投影设备
US11877103B2 (en) Projection device and projection picture correction method thereof
WO2022231778A1 (en) Distortion correction via modified analytical projection
WO2018167918A1 (ja) プロジェクタ、マッピング用データ作成方法、プログラム及びプロジェクションマッピングシステム
WO2014027986A1 (ru) Способ автоматического корректирования видео-проекции с помощью обратного преобразования
WO2022057043A1 (zh) 一种目标跟踪动向投影方法和动向投影设备
US20230247184A1 (en) Installation information acquisition method, correction method, program, and installation information acquisition system
WO2022062604A1 (zh) 投影画面调节方法、装置、投影仪和存储介质
WO2022183721A1 (zh) 投影校正方法、装置及投影系统
TW201917698A (zh) 多維影像投射裝置及其多維影像校正方法
CN115552456A (zh) 校正因相机俯仰角引起的畸变
CN113259653A (zh) 一种定制动向投影的方法、装置、设备及系统
TWI688274B (zh) 影像校正方法及影像校正系統

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19933280

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19933280

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 29.03.2022)

122 Ep: pct application non-entry in european phase

Ref document number: 19933280

Country of ref document: EP

Kind code of ref document: A1