WO2022007369A1 - 一种投影机摆放位置的调整方法及投影机 - Google Patents

一种投影机摆放位置的调整方法及投影机 Download PDF

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Publication number
WO2022007369A1
WO2022007369A1 PCT/CN2020/142144 CN2020142144W WO2022007369A1 WO 2022007369 A1 WO2022007369 A1 WO 2022007369A1 CN 2020142144 W CN2020142144 W CN 2020142144W WO 2022007369 A1 WO2022007369 A1 WO 2022007369A1
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WIPO (PCT)
Prior art keywords
projector
projection screen
placement position
graphics
display area
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Ceased
Application number
PCT/CN2020/142144
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English (en)
French (fr)
Inventor
李士杰
王霖
胡飞
李屹
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Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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Publication date
Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2022007369A1 publication Critical patent/WO2022007369A1/zh
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Ceased legal-status Critical Current

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    • 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]
    • 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
    • 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
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
    • 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

Definitions

  • the present application relates to the field of projector installation, and in particular, to a method for adjusting the placement position of a projector and a projector.
  • Projection TVs usually use ultra-short-throw projectors. When in use, the projectors are placed close to a special anti-light projection screen, and the projection screen of the projector needs to be adjusted to just fill the projection screen. The picture is reflected by the anti-light projection screen and enters the human eye for imaging.
  • the inventors of the present application found that the current projection TV often requires users to adjust the placement of the projector by experience so that the projection screen of the projector just fills the projection screen, which is time-consuming and labor-intensive to operate.
  • the technical problem mainly solved by the present application is to provide a method for adjusting the placement position of a projector and a projector, which can enable a user to conveniently and quickly complete the operation of overlapping the projection screen and the projection screen when using the projector.
  • a technical solution adopted in the present application is to provide a method for adjusting the placement position of a projector, the method comprising: acquiring a projection screen image; The graphics of the projection screen display area in the projection screen image; calculate the deviation value between the graphics of the projection screen display area and the standard graphics, and the standard graphics are obtained when the projector is placed in a preset position Projecting the graphics in the display area of the screen; generating the projector placement position adjustment instruction information according to the deviation value; adjusting the projector placement position according to the adjustment instruction information.
  • a projector comprising: a projector body, a camera, a processor, and a memory, wherein the processor is respectively coupled to the camera and the projector
  • the main body and the memory the camera is arranged at a fixed position on the projector main body, and the shooting direction faces the projection direction of the projector main body
  • the processor realizes the above-mentioned projection by executing the program data in the memory
  • a method for adjusting the placement position of a projector provided by the present application and a projector obtains an image of a projection screen image and extracts a graph of the display area of the projection screen in the image, and calculates the graph and the standard
  • the deviation value between the graphics, according to the deviation value generates the instruction information of the adjustment method of the projector placement position, so that the user can conveniently and quickly complete the operation of overlapping the projection screen and the projection screen when using the projector, which effectively improves the user experience.
  • FIG. 1 is a flow chart of steps of an embodiment of a method for adjusting the placement position of a projector according to the present application
  • FIG. 2 is a schematic diagram of an embodiment of obtaining a projection screen image in the present application
  • FIG. 3 is a schematic diagram of an embodiment of the positional relationship between the projector and the projection screen and the coordinate system of the adjustable position of the projector according to the present application;
  • FIG. 4 is a schematic diagram of an embodiment of a standard graphic of the application.
  • Fig. 5 is the schematic diagram of one embodiment of the variation situation of the graphics in the projection screen display area when the projector placement position is adjusted in the coordinate system in Fig. 3;
  • FIG. 6 is a flow chart of steps of an embodiment of adjusting the placement position of the projector according to the instruction information of the present application
  • Fig. 7 is the schematic diagram of the embodiment shown in Fig. 6;
  • FIG. 8 is a schematic structural diagram of an embodiment of the projector of the present application.
  • FIG. 1 is a flowchart of steps of an embodiment of a method for adjusting the placement position of a projector according to the present application. The steps of the method include:
  • S120 Process the image of the projection screen, and extract the graphics of the display area of the projection screen in the image of the projection screen.
  • S130 Calculate the deviation value between the graphics in the display area of the projection screen and the standard graphics, where the standard graphics is the graphics in the display area of the projection screen obtained when the projector is placed in a preset position.
  • S140 Generate projector placement adjustment instruction information according to the deviation value.
  • the content in the above-mentioned current projection screen image includes the entire projection screen and an image of a part of the background other than where the projection screen is located.
  • the boundary graphics of the projection screen may be obtained first, and then the graphics of the display area of the projection screen may be obtained by calculation according to the frame size of the projection screen.
  • a position calibration element may be preset in the display area of the projection screen, and the position of the display area of the projection screen may be acquired through the position calibration element, thereby obtaining the graphics of the display area of the projection screen.
  • FIG. 2 is a schematic diagram of an embodiment of the present application for acquiring a screen image of a projection screen.
  • the left and right figures are the left and front views of the camera 1300 capturing and acquiring the screen image of the projection screen 1100 respectively.
  • the camera 1300 is fixedly installed. At a position on the projector 1200, the camera 1300 can be built-in beside the lens of the projector 1200, or can be installed near the light exit of the projector 1200 through an external fixture.
  • the projection screen 1100 can be a specially-made anti-light screen, which can absorb ambient light to improve display quality.
  • the specially-made anti-light screen has a flat surface, which can avoid deformation of the projection image.
  • the projection function of the projector 1200 is not turned on.
  • the field of view angle 1400 of the camera 1300 should be larger than the projection angle of the projector 1200 to ensure a single picture.
  • the entire projection screen 1100 may be contained.
  • the projection function of the projector 1200 is turned on, and the projector 1200 projects a projection image.
  • the field of view angle 1400 of the camera 1300 should be greater than The projection angle of the projector 1200 ensures that a single picture can include the entire projection screen 1100, and at the same time, the resolution of the camera 1300 is higher than the resolution of the projection picture of the projector 1200, so that the projection picture and the projection screen 1100 can be displayed finely. area alignment.
  • the field of view angle 1400 of the camera 1300 should not be too much larger than the projection angle of the projector 1200, thereby causing waste of the camera 1300 pixels, or reducing the alignment accuracy.
  • the field of view angle of the camera 1300 1400 is 100% to 105% of the projection angle of the projector 1200.
  • the above-mentioned specific steps of extracting the graphics of the projection screen display area in the projection screen image include: performing color space conversion on the projection screen image, so that the color pixels in the projection screen display area in the image are highlighted, and extracting A graph of the highlighted color pixel range in the image.
  • performing color space conversion on the projection screen image so that the color pixels in the projection screen display area in the image are highlighted
  • extracting A graph of the highlighted color pixel range in the image are highlighted.
  • other image processing solutions may also be adopted for the above operation steps, which are not specifically limited here.
  • the above-mentioned standard graphic is the graphic of the projection screen display area extracted from the projection screen image when the projection image of the projector and the projection screen display area are completely overlapped.
  • the position of the projector can be defined as: Preset position.
  • FIG. 4 is a schematic diagram of an embodiment of the standard graphics of the application, including the field of view range 3100 of the camera and the projection extracted from the image of the projection screen when the projection screen of the projector and the display area of the projection screen are completely coincident
  • the graphics of the screen display area that is, the standard graphics 3200 shown in FIG. 4 .
  • the captured standard graphic 3200 is a trapezoid (excluding camera distortion, etc. factor), of course, in other embodiments, due to the different angles of the cameras when shooting, the collected standard graphics may also be of other shapes, which are not specifically limited here.
  • the deviation value between the graphics in the display area of the projection screen and the standard graphics includes at least one of the graphics in the display area of the projection screen and the standard graphics in terms of shape, size and position in the image of the projection screen. Species or combinations of deviations.
  • FIG. 3 is a schematic diagram of the positional relationship between the projector and the projection screen of the present application and an embodiment of the projector's adjustable position coordinate system.
  • the camera 2400 is fixedly installed on the projector 2300, and the camera 2400 can capture and obtain the projection screen.
  • the projector 2300 can move in the X-axis, Y-axis, Z-axis, ⁇ -axis, ⁇ -axis, ⁇ -axis direction as shown in Figure 3, and the camera 2400
  • the shape, size, and orientation of the acquired graphics of the projection screen display area 2200 are correspondingly changed as the projector 2300 moves in the directions of the X-axis, Y-axis, Z-axis, ⁇ -axis, ⁇ -axis, and ⁇ -axis, wherein,
  • the X axis direction is the left and right direction of the projector placement position;
  • the Y axis direction is the front and rear direction of the projector placement position;
  • the Z axis direction is the up and down direction of the projector placement position;
  • the ⁇ axis direction is the projector placement position along the X axis
  • the rotation direction of the axis direction; the ⁇ -axis direction is the rotation direction of the projector placement position
  • FIG. 5 is a schematic diagram of an embodiment of the graphical change in the display area of the projection screen when the placement position of the projector in FIG. 3 is adjusted in the coordinate system
  • FIG. 5 shows the graphics of the display area of the projection screen obtained by the camera. 2210 as the projector moves in the X-axis, Y-axis, Z-axis, ⁇ -axis, ⁇ -axis, and ⁇ -axis directions relative to the standard graphics in the three aspects of shape, size and orientation in the projected screen image.
  • the size, shape and orientation of the graphics 2210 in the display area of the projection screen all change.
  • FIG. 6 is a flow chart of the steps of adjusting the placement position of the projector according to the instruction information according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the embodiment shown in FIG. 6
  • the standard graphic 4200 in FIG. 7 is The standard trapezoid with up-down parallel left-right symmetry, the step flow of this embodiment includes:
  • S210 Generate instruction information for adjusting the placement position of the projector along the ⁇ -axis direction according to the deviation of the size ratio, shape and position of the graphic 4300 in the display area of the projection screen and the standard graphic 4200 in the projection screen image; the user or the intelligent mechanical device adjusts the position of the projector according to the The prompt information is adjusted accordingly.
  • S220 Generate instruction information for adjusting the placement position of the projector along the ⁇ -axis direction according to the positional deviation between the graphics 4300 in the display area of the projection screen and the standard graphics 4200 in the projection screen image; the user or the intelligent mechanical device makes corresponding adjustments according to the adjustment prompt information adjustment.
  • S230 Generate instruction information for adjusting the placement position of the projector along the ⁇ -axis direction according to the size ratio and shape deviation between the graphic 4300 in the display area of the projection screen and the standard graphic 4200 in the projection screen image; the user or the intelligent mechanical device adjusts the prompt information according to the Make appropriate adjustments.
  • S240 Generate instruction information for adjusting the placement position of the projector along the X-axis direction according to the deviation between the left and right positions of the graphics 4300 in the display area of the projection screen and the standard graphics 4200 in the projection screen image; the user or the intelligent mechanical device makes the adjustment according to the prompt information Adjust accordingly.
  • S250 Generate instruction information for adjusting the placement position of the projector along the Z-axis direction according to the deviation of the upper and lower positions of the graphics 4300 in the display area of the projection screen and the standard graphics 4200 in the projection screen image; the user or the intelligent mechanical device makes the adjustment according to the prompt information Adjust accordingly.
  • S260 Generate instruction information for adjusting the placement position of the projector along the Y-axis direction according to the difference between the size ratio of the graphic 4300 in the display area of the projection screen and the standard graphic 4200 in the projection screen image; the user or the intelligent mechanical device makes the adjustment based on the prompt information Adjust accordingly.
  • the projection screen simultaneously displays graphics 4300 in the display area of the screen and standard graphics 4200.
  • the standard graph 4200 is a standard trapezoid with left-right symmetry and up-down parallel.
  • the graphics in the display area of the projection screen during playback can also be of other shapes, that is, the standard graphics 4200 can also include graphics of various other shapes, when the standard graphics 4200 When it is any other shape, the judgment steps of S210-S260 in the embodiment shown in FIG.
  • the corresponding adjustment prompt information can be changed accordingly according to the actual shape, position and size of the standard graphic 4200 .
  • the shape, position and size of the standard graphic 4200 are different from those shown in the embodiments shown in FIG. 6 and FIG. 7 , the mutual sequence of the above judgment steps and the corresponding adjustment prompt information only need to satisfy the graphic 4300 that can make the projection screen display area. It only needs to be finally overlapped with the standard graphics 4200, which is not specifically limited here.
  • the calibration prompt information includes sound prompt information and/or visual prompt information, wherein the sound prompt information includes operation prompts
  • the projector speaker will send out a voice message “Please adjust the projector’s position along the ⁇ axis until the upper and lower sides of the projected graphics are in the correct proportion”.
  • the speaker of the projector will issue a prompt voice that the ratio of the upper and lower sides of the graphic 4300 in the screen display area is correct, and a prompt voice of the next adjustment step.
  • the above-mentioned visual prompting information includes image information and/or textual prompting information, wherein the textual prompting information may be the same as the textual information content of the above-mentioned voice information or may be a further detailed explanation of the textual information content of the above-mentioned voice information.
  • the textual prompting information may include Information about how many degrees or how much distance the user needs to adjust in which direction when calibrating the placement of the projector.
  • the above-mentioned image information includes the information of the above-mentioned standard graphics 4200. In one embodiment, it also includes the dynamic image information of the specific moving direction of the projector when adjusting the placement position of the projector.
  • the dynamic image information is composed of the projector and the position moving arrow.
  • the above-mentioned image information may also include other content with a prompting property, which is not limited herein.
  • the above-mentioned visual prompt information includes image information (including information of standard graphics 4200) and/or text prompt information may not be displayed, and the above-mentioned projector is in a shutdown state and does not project a picture.
  • the voice message of the operation prompt guides the user to adjust the projector placement.
  • the sequence of the steps of adjusting the placement position of the projector is ⁇ -axis, ⁇ -axis, ⁇ -axis, X-axis, Z-axis, and Y-axis
  • the adjustment prompt information during adjustment includes voice prompts information, image information, and text prompt information.
  • the order of the steps for adjusting the placement of the projector may also be different from the above steps.
  • ⁇ -axis, ⁇ -axis, ⁇ -axis, Z-axis, X-axis may also be one or a combination of voice prompt information, image information, and text prompt information, which is not specifically limited here.
  • FIG. 8 is a schematic structural diagram of a projector according to an embodiment of the present application.
  • the projector includes: a projector body 5200, a camera 5100, a processor 5300, and a memory 5400.
  • the processor 5300 is respectively coupled to the camera 5100 and the projector.
  • the camera 5100 is set at a fixed position on the projector main body 5200, and the shooting direction is toward the projection direction of the projector main body 5200.
  • the processor 5300 realizes the above-mentioned projector placement position by executing the program data in the memory 5400. Adjust any of the steps in the method.
  • the projector body 5200 further includes a projection component 5210 and a sound box 5220.
  • the processor 5300 can trigger the sound box 5220 to issue the above-mentioned sound prompt information; when the projection assembly 5210 of the projector body 5200 is in an on state, the processor 5300 can trigger the projection assembly 5210 to project the above-mentioned visual prompt information.
  • the processor 5300, the memory 5400 and the sound box 5220 are arranged inside the camera 5100, so that when the projector body 5200 is not powered on, the program in the memory 5400 can also be executed by the processor 5300 inside the camera 5100.
  • the data implements the steps of any one of the above methods for adjusting the placement position of the projector, and provides corresponding calibration prompt information through the speaker 5220 to instruct the user to adjust the placement position of the projector body 5200 .
  • the processor 5300 and the memory 5400 are both disposed inside the projector body 5200.
  • the projector body 5200 has its own camera function, and the external camera 5100 can be omitted to save the manufacturing cost of the equipment.
  • the processor 5300 can implement the steps of any one of the above-mentioned methods for adjusting the placement of the projector by executing the program data in the memory 5400, and by executing the program data in the memory 5400.
  • the sound box 5220 in the projector body 5200 provides corresponding calibration prompt information to guide the user to adjust the placement position of the projector body 5200 .
  • the above-mentioned projector is applied to the calibration of the projector and the projection screen of the laser projection TV.
  • the camera 5100 is set at a fixed position on the projector body 5200.
  • the camera 5100 can be built in beside the lens of the projection assembly 5210 of the projector body 5200, or can be installed on the projection assembly 5210 of the projector body 5200 through an external fixture.
  • the camera 5100 collects and obtains the image information of the projection screen in real time and inputs the information into the memory 5400
  • the processor 5300 implements the steps of any one of the above-mentioned methods for adjusting the placement of the projector by executing the program data in the memory 5400, including: Extract the graphic information of the projection screen display area in the projection screen image information; calculate the deviation value between the graphic of the projection screen display area and the standard graphic, where the standard graphic is the projection screen when the projection screen of the projector and the projection screen are completely coincident.
  • the figure of the projection screen display area extracted from the image; the figure of the projection screen display area is projected onto the display screen by the projection component 5210, and at the same time the projection component 5210 projects the adjustment prompt information ( Standard graphics, text, image prompts) and play voice prompts through the speaker 5220 to guide the user or intelligent mechanical device to adjust the projector placement until the graphics in the display area of the projection screen are exactly the same as the standard graphics.
  • the adjustment prompt information Standard graphics, text, image prompts
  • the inventive method and device of the present application obtains the image of the projection screen and extracts the graphics of the display area of the projection screen in the image, calculates the deviation value between the graphics and the standard graphics, and generates and adjusts the position of the projector according to the deviation value.
  • the instruction information can be used to enable the user to conveniently and quickly complete the operation of overlapping the projection screen and the projection screen when using the projector, thereby effectively improving the user experience.

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  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
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  • Projection Apparatus (AREA)

Abstract

本申请公开了一种投影机摆放位置的调整方法及投影机，其中，投影机摆放位置的调整方法包括：获取投影屏幕画面图像；对所述投影屏幕画面图像进行处理，提取所述投影屏幕画面图像中投影屏幕显示区域的图形；计算所述投影屏幕显示区域的图形与标准图形之间的偏差值，所述标准图形为所述投影机摆放在预设位置时所获取的投影屏幕显示区域的图形；根据所述偏差值生成所述投影机摆放位置调整指示信息；根据所述调整指示信息调整所述投影机的摆放位置。本申请提供的投影机摆放位置的调整方法能够使用户在使用投影机时能够方便快捷地完成投影画面与投影屏幕重合的操作，有效提升了用户体验。

Description

一种投影机摆放位置的调整方法及投影机 技术领域
本申请涉及投影机安装领域，特别是涉及一种投影机摆放位置的调整方法及投影机。
背景技术
近年来，以微型投影仪电视为代表的新型投影电视因其拥有健康护眼、沉浸感强、节能省电、家居融合性好的优点而越来越受到消费者的欢迎，各大家电行业品牌均推出了自己的投影电视，投影电视通常采用超短焦投影机，在使用时投影机靠近特制的抗光投影屏幕摆放，并且需要将投影机的投影画面调整至刚好填满投影屏幕，投影画面经过抗光投影屏幕反射进入人眼成像。
本申请的发明人发现，目前的投影电视在使用时往往需要用户靠经验进行投影机摆放位置的调整以使投影机的投影画面刚好填满投影屏幕，操作起来费时费力。
发明内容
本申请主要解决的技术问题是提供一种投影机摆放位置的调整方法及投影机，能够使用户在使用投影机时能够方便快捷地完成投影画面与投影屏幕重合的操作。
为解决上述技术问题，本申请采用的一个技术方案是：提供一种投影机摆放位置的调整方法，所述方法包括：获取投影屏幕画面图像；对所述投影屏幕画面图像进行处理，提取所述投影屏幕画面图像中投影屏幕显示区域的图形；计算所述投影屏幕显示区域的图形与标准图形之间的偏差值，所述标准图形为所述投影机摆放在预设位置时所获 取的投影屏幕显示区域的图形；根据所述偏差值生成所述投影机摆放位置调整指示信息；根据所述调整指示信息调整所述投影机的摆放位置。
为解决上述技术问题，本申请采用的另一个技术方案是：提供一种投影机，包括：投影机本体、摄像头、处理器、存储器，所述处理器分别耦接所述摄像头、所述投影机本体和所述存储器，所述摄像头设置在所述投影机本体上一固定位置，且拍摄方向朝向所述投影机本体的投影方向，所述处理器通过执行所述存储器内的程序数据实现上述投影机摆放位置的调整方法中任一项的步骤。
本申请的有益效果是：本申请所提供的一种投影机摆放位置的调整方法与一种投影机通过获取投影屏幕画面图像并提取图像中的投影屏幕显示区域的图形，计算该图形与标准图形之间的偏差值，根据偏差值生成投影机摆放位置调整方式的指示信息，从而能够使用户在使用投影机时能够方便快捷地完成投影画面与投影屏幕重合的操作，有效提升了用户体验。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：
图1为本申请投影机摆放位置的调整方法一实施例的步骤流程图；
图2为本申请获取投影屏幕画面图像一实施例的示意图；
图3为本申请投影机和投影屏幕的位置关系以及投影机可调位置坐标体系一实施例的示意图；
图4为本申请标准图形一实施例的示意图；
图5为图3中投影机摆放位置在坐标体系中调整时投影屏幕显示 区域的图形的变化情况一实施例的示意图；
图6为本申请根据指示信息调整投影机摆放位置一实施例的步骤流程图；
图7为图6所示实施例的示意图；
图8为本申请投影机一实施例的结构示意图；
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性的劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
请参阅图1，图1为本申请投影机摆放位置的调整方法一实施例的步骤流程图，该方法的步骤包括：
S110：获取投影屏幕画面图像。
S120：对投影屏幕画面图像进行处理，提取投影屏幕画面图像中投影屏幕显示区域的图形。
S130：计算投影屏幕显示区域的图形与标准图形之间的偏差值，标准图形为投影机摆放在预设位置时所获取的投影屏幕显示区域的图形。
S140：根据偏差值生成投影机摆放位置调整指示信息。
S150：根据调整指示信息调整投影机的摆放位置。
其中，上述当前投影屏幕画面图像中的内容包含了整块投影屏幕以及投影屏幕所处位置之外的部分背景的图像。
在一种实施方式中，可以先获取投影屏幕的边界图形，然后根据投影屏幕的边框尺寸计算获得投影屏幕显示区域的图形。或者，也可通过在投影屏幕显示区域预设位置标定元件，通过该位置标定元件获取投影屏幕显示区域的位置，从而获得投影屏幕显示区域的图形。
请参阅图2，图2为本申请获取投影屏幕画面图像一实施例的示 意图，其中左图和右图分别为摄像头1300采集获取投影屏幕1100的画面图像的左视图和正视图，摄像头1300固定安装在投影机1200上一位置，摄像头1300可以内置在投影机1200的镜头旁，也可以通过外置夹具安装在投影机1200的光线出口附近。投影屏幕1100可以为特制的抗光屏幕，抗光屏幕可以吸收环境光以提升显示质量，此外该特制的抗光屏幕表面平整，能够避免投影画面出现变形等情形。
在一具体应用场景中，投影机1200的投影功能并未打开，为了保证投影屏幕与画面对准调节的准确度，摄像头1300的视场角1400要大于投影机1200的投射角，确保单张画面可以包含整个投影屏幕1100。
在另一具体应用场景中，投影机1200的投影功能打开，投影机1200投射出投影画面，为了保证投影屏幕1100的显示区域与画面对准调节的准确度，摄像头1300的视场角1400要大于投影机1200的投射角，确保单张画面可以包含整个投影屏幕1100，与此同时摄像头1300的分辨率要高于投影机1200投影画面的分辨率，从而可以精细地实现投影画面和投影屏幕1100显示区域的对准。
需要注意的是，上述摄像头1300的视场角1400不应过于大于投影机1200的投射角太多，从而造成摄像头1300像素的浪费，或者对准精度的降低，优选的，摄像头1300的视场角1400为投影机1200投射角的100％～105％。
在一实施例中，上述提取投影屏幕画面图像中的投影屏幕显示区域的图形的具体步骤包括：对投影屏幕画面图像进行色彩空间转换，使图像中投影屏幕显示区域部分的色彩像素突出显示，提取图像中突出显示的色彩像素范围的图形。当然，在其他实施方式中，上述操作步骤还可以采用其他的图像处理方案，这里不做具体限定。
在一实施例中，上述标准图形为投影机的投影画面与投影屏幕显示区域完全重合时从投影屏幕画面图像中所提取的投影屏幕显示区域的图形，此时投影机摆放的位置可以定义为预设位置。请参阅图4，图4为本申请标准图形一实施例的示意图，包括摄像头的视场角范围 3100和投影机的投影画面与投影屏幕显示区域完全重合时从投影屏幕画面图像中所提取的投影屏幕显示区域的图形，即图4所示的标准图形3200。在本实施例中，由于摄像头摆放位置低于投影屏幕底边，当投影屏幕中心点位于摄像头采集画面中心点时，摄像头呈一定仰角，所以采集到的标准图形3200是梯形(排除摄像头畸变等因素)，当然在其他实施例中，由于摄像头拍摄时的角度不同，使得所以采集到的标准图形也可以为其他形状，在此不做具体限定。
在一实施例中，上述投影屏幕显示区域的图形与标准图形之间的偏差值包括投影屏幕显示区域的图形与标准图形在形状、大小以及在投影屏幕画面图像中的位置三个方面中至少一种或组合上的偏差。参阅图3，图3为本申请投影机和投影屏幕的位置关系以及投影机可调位置坐标体系一实施例的示意图，摄像头2400固定安装在投影机2300上一位置，摄像头2400可采集获取投影屏幕2100的画面图像并提取图像中投影屏幕显示区域2200的图形，投影机2300可在如图3所示的X轴、Y轴、Z轴、α轴、β轴、γ轴方向上移动，摄像头2400所获取的投影屏幕显示区域2200的图形的形状、大小、方位随着投影机2300在X轴、Y轴、Z轴、α轴、β轴、γ轴方向上移动而产生对应的变化，其中，X轴方向为投影机摆放位置的左右方向；Y轴方向为投影机摆放位置的前后方向；Z轴方向为投影机摆放位置的上下方向；α轴方向为投影机摆放位置沿X轴方向的旋转方向；β轴方向为投影机摆放位置沿Y轴方向的旋转方向；γ轴方向为投影机摆放位置沿Z轴方向的旋转方向。
参阅图5，图5为图3中投影机摆放位置在坐标体系中调整时投影屏幕显示区域的图形变化情况一实施例的示意图，图5中展示了摄像头所获取的投影屏幕显示区域的图形2210随着投影机在X轴、Y轴、Z轴、α轴、β轴、γ轴方向上移动时其相对标准图形在形状、大小以及在投影屏幕画面图像中的方位位置三个方面的可能的变化。其中，
当投影机2300摆放位置沿X轴方向移动时，投影屏幕显示区域 的图形2210的大小与形状不变，方位沿X轴相反方向位移；
当投影机2300摆放位置沿Y轴移动时，投影屏幕显示区域的图形2210的形状与方位不变，大小等比例缩放；
当投影机2300摆放位置沿Z轴方向移动时，投影屏幕显示区域边界图形2210的大小与形状不变，方位沿Z轴相反方向位移；
当投影机2300摆放位置沿α轴方向旋转时，投影屏幕显示区域的图形2210方位不变，大小与形状变化；
当投影机2300摆放位置沿β轴方向旋转时，投影屏幕显示区域的图形2210的大小与形状不变，方位沿β轴反方向旋转；
当投影机2300摆放位置沿γ轴方向旋转时，投影屏幕显示区域的图形2210大小、形状与方位均变化。
参阅图6，图6为本申请根据指示信息调整投影机摆放位置一实施例的步骤流程图，结合图7，图7为图6所示实施例的示意图，图7中的标准图形4200为上下平行左右对称的标准梯形，该实施例的步骤流程包括：
S210：根据投影屏幕显示区域的图形4300与标准图形4200在投影屏幕画面图像中大小比例、形状以及位置的偏差生成沿γ轴方向调整投影机摆放位置的指示信息；用户或智能机械设备根据调整提示信息做出相应的调整。
S220：根据投影屏幕显示区域的图形4300与标准图形4200在投影屏幕画面图像中位置的偏差生成沿β轴方向调整投影机摆放位置的指示信息；用户或智能机械设备根据调整提示信息做出相应的调整。
S230：根据投影屏幕显示区域的图形4300与标准图形4200在投影屏幕画面图像中大小比例以及形状的偏差生成沿α轴方向调整投影机摆放位置的指示信息；用户或智能机械设备根据调整提示信息做出相应的调整。
S240：根据投影屏幕显示区域的图形4300与标准图形4200在投影屏幕画面图像中左右位置的偏差生成沿X轴方向调整投影机摆放 位置的指示信息；用户或智能机械设备根据调整提示信息做出相应的调整。
S250：根据投影屏幕显示区域的图形4300与标准图形4200在投影屏幕画面图像中上下位置的偏差生成沿Z轴方向调整投影机摆放位置的指示信息；用户或智能机械设备根据调整提示信息做出相应的调整。
S260：根据投影屏幕显示区域的图形4300与标准图形4200在投影屏幕画面图像中大小比例的偏差生成沿Y轴方向调整投影机摆放位置的指示信息；用户或智能机械设备根据调整提示信息做出相应的调整。
在一实施例中，上述在进行根据调整提示信息调整投影机摆放位置直至投影屏幕显示区域的图形与标准图形完全一致的操作过程中，投影画面同时显示屏幕显示区域的图形4300与标准图形4200，给予用户或智能机械设备对标准图形4200位置、形状、大小更直观的感受，方便用户或智能机械设备更好地进行校准操作。
在图6与图7所示的实施例中，标准图形4200为左右对称上下平行的标准梯形，当然在其他实施例中，由于摄像头拍摄时的角度不同，使得摄像头拍摄获取的上述投影机正确摆放时(即上述投影机的投影画面与投影屏幕显示区域完全重合时)的投影屏幕显示区域的图形也可以为其他形状，即标准图形4200也可以包括其它各种形状的图形，当标准图形4200为其他任一形状时，图6所示实施例中的S210-S260的判断步骤以及对应给出的调整提示信息可根据标准图形4200实际形状、位置、大小的不同做出相应的变化。当标准图形4200形状、位置、大小与图6与图7所示实施例不同时，上述判断步骤之间的相互顺序以及对应给出的调整提示信息只需满足能使投影屏幕显示区域的图形4300与标准图形4200最终重合即可，这里不做具体限定。
此外如图7所示在进行每一个校准步骤后，屏幕4100的画面中都会实时显示更新的校准提示信息，该校准提示信息包括声音提示信 息和/或视觉提示信息，其中声音提示信息包括操作提示的语音信息，例如，当屏幕显示区域的图形4300上下边比例不对时，投影机音箱发出“请沿α轴方向调整投影机摆放位置直至画面中投影图形上下边比例正确”的语音消息，当此步骤完成时投影机音箱发出屏幕显示区域的图形4300上下边比例已正确的提示语音以及下一调整步骤的提示语音。
上述视觉提示信息包括图像信息和/或文字提示信息，其中文字提示信息可以与上述语音信息的文字信息内容相同也可以为上述语音信息的文字信息内容的进一步详细解释，例如，文字提示信息可以包括用户在校准投影机摆放位置时具体需要往哪个方向调整多少度或多少位置距离的信息。
上述图像信息包括上述标准图形4200的信息，在一实施例中还包括调整投影机摆放位置时其具体移动方位的动态图信息，该动态图信息由投影机以及位置移动箭头组成，当然在其他实施方式中上述图像信息还可以包含其他具有提示性质的内容，在此不作限定。
在一实施例中，上述视觉提示信息包括图像信息(包括标准图形4200的信息)和/或文字提示信息可以不显示，上述投影机处于关机状态，并未投影出画面，此时可以仅凭上述操作提示的语音信息来指导用户调整投影机摆放位置。
在图6与图7所示的实施例中，调整投影机摆放位置步骤的顺序为γ轴、β轴、α轴、X轴、Z轴、Y轴，调整时的调整提示信息包括声音提示信息、图像信息、文字提示信息，当然在其他实施方式中调整投影机摆放位置步骤的顺序也可以和上述步骤不一样，例如可以采用β轴、α轴、γ轴、Z轴、X轴、Y轴的调整步骤，此外调整提示信息也可以为声音提示信息、图像信息、文字提示信息中的一种或组合，这里不做具体限定。
请参阅图8，图8为本申请投影机一实施例的结构示意图，该投影机包括：投影机本体5200、摄像头5100、处理器5300、存储器5400，处理器5300分别耦接摄像头5100、投影机本体5200和存储器5400， 摄像头5100设置在投影机本体5200上一固定位置，且拍摄方向朝向投影机本体5200的投影方向，处理器5300通过执行存储器5400内的程序数据实现上述投影机摆放位置的调整方法中任一项的步骤。
在图8所示的实施例中，投影机本体5200还包括投影组件5210与音箱5220，当投影机本体5200的投影组件5210处于未开启状态下时，处理器5300能够触发音箱5220发出上述声音提示信息；当投影机本体5200的投影组件5210处于开启状态下时，处理器5300能够触发投影组件5210投射上述视觉提示信息。
在一实施例中，处理器5300、存储器5400以及音箱5220设置在摄像头5100内部，从而使得在投影机本体5200处于未开机状态时，也可以通过摄像头5100内部的处理器5300执行存储器5400内的程序数据实现上述投影机摆放位置的调整方法中任一项的步骤，以及通过音箱5220给出对应的校准提示信息指导用户调整投影机本体5200的摆放位置。
在一实施例中，处理器5300与存储器5400均设置在投影机本体5200内部，投影机本体5200内自带摄像功能，外接的摄像头5100可以省去，以节省设备的制造成本，当投影机本体5200的投影组件5210未打开即投影机本体5200未投影出投影画面时，处理器5300能通过执行存储器5400内的程序数据实现上述投影机摆放位置的调整方法中任一项的步骤，以及通过投影机本体5200内的音箱5220给出对应的校准提示信息指导用户调整投影机本体5200的摆放位置。
在一具体应用场景中，上述投影机应用于激光投影电视的投影机与投影屏幕校准。其中，摄像头5100设置在投影机本体5200上一固定位置，摄像头5100可以内置在投影机本体5200的投影组件5210的镜头旁，也可以通过外置夹具安装在投影机本体5200的投影组件5210的光线出口附近，摄像头5100实时采集获取投影屏幕图像信息并将信息输入存储器5400中，处理器5300通过执行存储器5400内的程序数据实现上述投影机摆放位置的调整方法中任一项的步骤，包括：提取投影屏幕图像信息中的投影屏幕显示区域的图形信息；计算 投影屏幕显示区域的图形与标准图形之间的偏差值，其中标准图形为投影机的投影画面与投影屏幕完全重合时从投影屏幕画面图像中所提取的投影屏幕显示区域的图形；投影屏幕显示区域的图形通过投影组件5210投影到显示屏幕上，与此同时投影组件5210在显示屏幕上投影出根据上述偏差值生成的调整提示信息(标准图形、文字、图像提示)以及通过音箱5220播放语音提示信息以指导用户或智能机械设备调整投影机摆放位置直至投影屏幕显示区域的图形与标准图形完全一致。
总而言之，本申请的发明方法与装置通过获取投影屏幕画面图像并提取图像中的投影屏幕显示区域的图形，计算该图形与标准图形之间的偏差值，根据偏差值生成调整摆放投影机位置的指示信息，从而能够使用户在使用投影机时能够方便快捷地完成投影画面与投影屏幕重合的操作，有效提升了用户体验。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (9)

  1. 一种投影机摆放位置的调整方法，其特征在于，所述方法包括：
    获取投影屏幕画面图像；
    对所述投影屏幕画面图像进行处理，提取所述投影屏幕画面图像中投影屏幕显示区域的图形；
    计算所述投影屏幕显示区域的图形与标准图形之间的偏差值，所述标准图形为所述投影机摆放在预设位置时所获取的投影屏幕显示区域的图形；
    根据所述偏差值生成所述投影机摆放位置调整指示信息；
    根据所述调整指示信息调整所述投影机的摆放位置。
  2. 根据权利要求1所述的方法，其特征在于，所述偏差值包括所述投影屏幕显示区域的图形与所述标准图形的形状、大小以及在所述投影屏幕画面图像中的位置。
  3. 根据权利要求1所述的方法，其特征在于，所述指示信息包含所述投影机摆放位置在X轴、Y轴、Z轴、α轴、β轴、γ轴方向上至少一种或组合的调整方式；
    所述X轴方向为所述投影机摆放位置的左右方向；
    所述Y轴方向为所述投影机摆放位置的前后方向；
    所述Z轴方向为所述投影机摆放位置的上下方向；
    所述α轴方向为所述投影机摆放位置沿X轴方向的旋转方向；
    所述β轴方向为所述投影机摆放位置沿Y轴方向的旋转方向；
    所述γ轴方向为所述投影机摆放位置沿Z轴方向的旋转方向。
  4. 根据权利要求3所述的方法，其特征在于，所述根据偏差值生成所述投影机摆放位置调整的指示信息包括：
    根据所述投影屏幕显示区域的图形与所述标准图形在所述投影屏幕画面图像中左右位置的偏差生成沿X轴方向调整所述投影机摆放位置的指示信息；
    根据所述投影屏幕显示区域的图形与所述标准图形在所述投影 屏幕画面图像中大小比例的偏差生成沿Y轴方向调整所述投影机摆放位置的指示信息；
    根据所述投影屏幕显示区域的图形与所述标准图形在所述投影屏幕画面图像中上下位置的偏差生成沿Z轴方向调整所述投影机摆放位置的指示信息；
    根据所述投影屏幕显示区域的图形与所述标准图形在所述投影屏幕画面图像中大小比例以及形状的偏差生成沿α轴方向调整所述投影机摆放位置的指示信息；
    根据所述投影屏幕显示区域的图形与所述标准图形在所述投影屏幕画面图像中位置的偏差生成沿β轴方向调整所述投影机摆放位置的指示信息；
    根据所述投影屏幕显示区域的图形与所述标准图形在所述投影屏幕画面图像中大小比例、形状以及位置的偏差生成沿γ轴方向调整所述投影机摆放位置的指示信息。
  5. 根据权利要求1所述的方法，其特征在于，所述指示信息包括声音提示信息和/或视觉提示信息。
  6. 根据权利要求5所述的方法，其特征在于，所述视觉提示信息包括图像信息和/或文字提示信息。
  7. 一种投影机，其特征在于，包括：投影机本体、摄像头、处理器、存储器，所述处理器分别耦接所述摄像头、所述投影机本体和所述存储器，所述摄像头设置在所述投影机本体上一固定位置，且拍摄方向朝向所述投影机本体的投影方向，所述处理器通过执行所述存储器内的程序数据实现权利要求1-6任一项所述方法中的步骤。
  8. 根据权利要求7所述的投影机，其特征在于，所述投影机本体包括投影组件与音箱，所述投影机本体的所述投影组件在未开启状态下时，所述处理器能够触发所述音箱发出所述声音提示信息。
  9. 根据权利要求8所述的投影机，其特征在于，所述投影机本体的所述投影组件在开启状态下时，所述处理器能够触发所述投影组件投射所述视觉提示信息。
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508876A2 (en) * 2003-08-22 2005-02-23 Nec Corporation Image projection method and device
JP2008113176A (ja) * 2006-10-30 2008-05-15 Hitachi Ltd 映像表示システムの調整システム
CN102162979A (zh) * 2011-04-08 2011-08-24 广东威创视讯科技股份有限公司 投影仪投影图像自动调整方法及其装置
CN103338342A (zh) * 2013-03-19 2013-10-02 卿婷 自适应投影仪
CN105676572A (zh) * 2016-04-19 2016-06-15 深圳市神州云海智能科技有限公司 用于移动机器人配备的投影仪的投影校正方法和设备
CN106412540A (zh) * 2016-11-18 2017-02-15 四川长虹电器股份有限公司 投影显示系统及其自动对位方法
CN110636274A (zh) * 2019-11-11 2019-12-31 成都极米科技股份有限公司 超短焦画幕对齐方法、装置和超短焦投影机及存储介质

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508876A2 (en) * 2003-08-22 2005-02-23 Nec Corporation Image projection method and device
JP2008113176A (ja) * 2006-10-30 2008-05-15 Hitachi Ltd 映像表示システムの調整システム
CN102162979A (zh) * 2011-04-08 2011-08-24 广东威创视讯科技股份有限公司 投影仪投影图像自动调整方法及其装置
CN103338342A (zh) * 2013-03-19 2013-10-02 卿婷 自适应投影仪
CN105676572A (zh) * 2016-04-19 2016-06-15 深圳市神州云海智能科技有限公司 用于移动机器人配备的投影仪的投影校正方法和设备
CN106412540A (zh) * 2016-11-18 2017-02-15 四川长虹电器股份有限公司 投影显示系统及其自动对位方法
CN110636274A (zh) * 2019-11-11 2019-12-31 成都极米科技股份有限公司 超短焦画幕对齐方法、装置和超短焦投影机及存储介质

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