WO2018209878A1 - 位置指示方法、用于位置指示的操作装置与显示系统 - Google Patents

位置指示方法、用于位置指示的操作装置与显示系统 Download PDF

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Publication number
WO2018209878A1
WO2018209878A1 PCT/CN2017/104655 CN2017104655W WO2018209878A1 WO 2018209878 A1 WO2018209878 A1 WO 2018209878A1 CN 2017104655 W CN2017104655 W CN 2017104655W WO 2018209878 A1 WO2018209878 A1 WO 2018209878A1
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Prior art keywords
coordinate system
display screen
screen
display
coordinates
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PCT/CN2017/104655
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English (en)
French (fr)
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魏洋洋
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广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2018209878A1 publication Critical patent/WO2018209878A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B17/00Teaching reading
    • G09B17/02Line indicators or other guides or masks
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/08Cursor circuits

Definitions

  • the present invention relates to the field of electronic display technologies, and in particular, to a position indication method, an operation device for position indication, and a display system.
  • the presenter typically uses a laser pointer to project a spot of light onto the screen to indicate a particular location on the screen.
  • the laser pointer also known as the laser pen, the star pen, etc., is a pen-type transmitter that is designed to be a portable, hand-friendly, laser module (light-emitting diode).
  • the laser pointer cannot be formed into a light spot due to total reflection of the glass when projected onto the display screen.
  • a laser pointer instead of a laser pointer.
  • a camera module is disposed on the indicator, and a position marker is disposed on the display screen, and the indicator calculates a coordinate of the position indicated by the indicator on the display screen according to the coordinate of the position identifier in the image capturing screen, so that The display performs display processing on the indicated position.
  • an object of the present invention is to provide a position indication method, an operation device and a display system for position indication, which are applicable to various display devices, and accurately indicate a position to be instructed, thereby avoiding a blind spot caused by shooting. Indicated situation.
  • an aspect of the present invention provides a location indication method, including:
  • the operating device instructs an arbitrary position on the display screen of the display device from the non-contact position, and captures an image indicating the position to obtain a photographing screen; wherein the display device is provided with a position identifier;
  • the operating device acquires the coordinates of the indicated position in the display screen coordinate system at the current time according to the coordinates of the position identifier in the shooting picture coordinate system at the current time;
  • the operating device transmits the coordinates of the indicated position in the display screen coordinate system at the current time to the display device, so that the display device performs display processing on the indicated position on the display screen;
  • the display screen is mapped to an analog display screen in the coordinate system of the shooting screen;
  • the operating device keeps the analog display screen in the coordinate system of the shooting picture by autofocusing In the preset screen range.
  • the operating device is configured according to a size of the display screen, a size ratio of the position identifier in the display screen coordinate system and the photographing screen coordinate system, and a position identifier in the photographing screen coordinate system at the current time.
  • the coordinates are obtained, and the display screen is mapped to the analog display screen in the coordinate system of the shooting screen, including:
  • the operating device determines, according to the size of the display screen, the size ratio of the position identifier in the display screen coordinate system and the photographing screen coordinate system at the current time, to determine that the display screen is mapped to the simulated display screen in the photographing screen coordinate system. size;
  • the operating device determines, according to the coordinates of the position identifier in the shooting picture coordinate system at the current time, that the display screen is mapped to a position of the analog display screen in the shooting picture coordinate system.
  • the operating device acquires the coordinates of the indicated position in the display screen coordinate system according to the coordinates of the position identifier in the shooting picture coordinate system at the current time, and includes:
  • the operating device acquires coordinates (x1, y1) of the position identifier in the shooting picture coordinate system at the current time;
  • the location identifier comprises a first location identifier and a second location identifier
  • the coordinates of the position identifier in the photographing frame coordinate system at the current time are specifically: the coordinates of the line midpoint of the first position identifier and the second position identifier at the current time in the photographing frame coordinate system;
  • the ratio of the size of the position identifier in the display screen coordinate system to the photographing screen coordinate system at the current time is specifically: the distance between the first position identifier and the second position identifier in the display screen coordinate system at the current time and The ratio of the distance in the frame coordinate system.
  • the first location identifier and the second location identifier are both infrared LED lights.
  • the operating device keeps the analog display screen in a preset screen range of the shooting picture coordinate system by auto-focusing, in particular: the operating device causes the analog display screen to be completely included by the automatic focusing In the photographing screen, it satisfies: L1/L0 ⁇ a or W1/W0 ⁇ b; wherein a and b are constant values; L0 is the length of the analog display screen, and W0 is the width of the analog display screen, and L1 is The length of the photographing screen, W1 is the width of the photographing screen.
  • the auto focus is digital focus or optical focus.
  • the operating device sends the coordinates of the indicated position in the display screen coordinate system to the display device by wirelessly, so that the display device displays the indication on the display screen.
  • the position is displayed for processing.
  • an operating device for position indication comprising:
  • a photographing module configured to instruct an arbitrary position on a display screen of the display device from a non-contact position, and take an image of the pointed position to obtain a photographing screen; wherein the display device is provided with a position identifier;
  • a coordinate acquiring module configured to acquire coordinates of the indicated position in the display screen coordinate system according to the coordinates of the position identifier in the shooting picture coordinate system at the current time;
  • a coordinate sending module configured to send coordinates of the indicated position in the display screen coordinate system at the current time to the display device, so that the display device advances the indicated position on the display screen Line display processing;
  • the screen simulation module is configured to: according to the size of the display screen, the size ratio of the position identifier in the display screen coordinate system and the photographing screen coordinate system, and the coordinate of the position identifier in the photographing screen coordinate system at the current time. Obtaining that the display screen is mapped to an analog display screen in a photographing screen coordinate system;
  • Auto-focusing module used to keep the analog display screen in the preset screen range of the shooting picture coordinate system by auto-focusing.
  • the picture simulation module comprises:
  • a size calculation unit configured to determine, according to the size of the display screen, the size ratio of the position identifier in the display screen coordinate system and the photographing screen coordinate system, the display screen is mapped to the analog display in the photographing screen coordinate system.
  • the size of the picture
  • the position calculation unit is configured to determine, according to the coordinates of the position identifier in the shooting picture coordinate system at the current time, the position of the display screen mapped to the analog display screen in the shooting picture coordinate system.
  • the coordinate acquisition module comprises:
  • a coordinate recognition unit configured to acquire coordinates (x1, y1) of the position identifier in the shooting picture coordinate system at the current time;
  • the location identifier comprises a first location identifier and a second location identifier
  • the coordinates of the position identifier in the shooting picture coordinate system at the current time are specifically: current time Engraving a coordinate of a line midpoint of the first position identifier and the second position identifier in a photographing frame coordinate system;
  • the ratio of the size of the position identifier in the display screen coordinate system to the photographing screen coordinate system at the current time is specifically: the distance between the first position identifier and the second position identifier in the display screen coordinate system at the current time and The ratio of the distance in the frame coordinate system.
  • the first location identifier and the second location identifier are both infrared LED lights.
  • the auto-focusing module specifically includes the analog display screen in the photographing screen by auto-focusing, and satisfies: L1/L0 ⁇ a or W1/W0 ⁇ b; wherein a and b are fixed
  • L0 is the length of the analog display screen
  • W0 is the width of the analog display screen
  • L1 is the length of the shot screen
  • W1 is the width of the shot screen.
  • the auto focus is digital focus or optical focus.
  • the coordinate sending module is configured to send, by using wireless, coordinates of the indication position in the display screen coordinate system at a current time to the display device, so that the display device is on the display screen.
  • the indicated position performs display processing.
  • the present invention also provides a display system including a display device and the above-described operating device for position indication.
  • an embodiment of the present invention provides a position indication method, an operation device for position indication, and a display system, wherein the position indication method includes the operation device from non-contact. Positioning an arbitrary position on the display screen of the display device, and photographing the pointed position to obtain a photographing screen; and operating the device according to the coordinates of the position marker in the photographing screen coordinate system at the current time, acquiring the indicated position at the current moment Displaying coordinates in the screen coordinate system; the operating device transmits coordinates of the indicated position in the display screen coordinate system at the current time to the display Displaying means for causing the display device to perform display processing on the indication position on the display screen; the operation device according to the size of the display screen, the current position, the position marker in the display screen coordinate system and the shooting screen coordinates The size ratio of the system and the coordinates of the position identifier in the photographing screen coordinate system at the current time, and the display screen is mapped to the analog display screen in the photographing screen coordinate system; the operation device causes the analog display screen by
  • the method adopts an operation device with a camera function, instead of a laser pointer, which does not cause damage or harm to the human eye, and can be applied to any display device; at the same time, the method can overcome the blindness caused by shooting blind spots.
  • the normal display and the fact that the operating device is far away from the display device are difficult to identify due to the low resolution of the operating device to the position marker.
  • FIG. 1 is a schematic flowchart of a location indication method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a specific process of step S2 in FIG. 1;
  • step S4 in FIG. 1 is a schematic diagram of a specific process of step S4 in FIG. 1;
  • FIG. 4 is a schematic diagram showing states of a current time display screen and a shooting screen
  • FIG. 5 is a structural block diagram of an operation device for position indication according to an embodiment of the present invention.
  • Figure 6 is a block diagram showing the structure of the picture simulation module 4 of Figure 5;
  • FIG. 7 is a block diagram showing the structure of the coordinate acquisition module 2 of FIG. 5.
  • FIG. 1 is a schematic flowchart of a location indication method according to an embodiment of the present invention, including:
  • the operating device instructs an arbitrary position on the display screen of the display device from the non-contact position, and captures an image indicating the position to obtain a shooting image; wherein the display device is provided with a position identifier;
  • the operating device acquires coordinates of the indicated position in the display screen coordinate system at the current time according to the coordinates of the position identifier in the shooting picture coordinate system at the current time;
  • the operating device sends the coordinates of the indication position in the display screen coordinate system at the current time to the display device, so that the display device performs display processing on the indication position on the display screen;
  • the operating device obtains, according to the size of the display screen, the size ratio of the position identifier in the display screen coordinate system and the shooting screen coordinate system, and the coordinates of the position identifier in the shooting screen coordinate system at the current time.
  • the display screen is mapped to an analog display screen in a photographing screen coordinate system;
  • the operating device keeps the analog display screen in a preset screen range of the shooting picture coordinate system by autofocusing.
  • the operating device can be processed into a pen shape.
  • step S1 the operation device specifically performs photographing by a camera provided on the main body of the operation device.
  • the camera can be placed at the front or side of the operating device.
  • step S2 includes:
  • the operating device acquires coordinates (x1, y1) of the position identifier in the shooting picture coordinate system at the current time;
  • L2/L1 and W2/W1 actually convert the coordinate system of the captured picture into the long coefficient and the wide coefficient of the coordinate system of the display screen. Therefore, the coordinate x2 of the indicated position in the x direction of the display screen can be obtained according to the long coefficient and x1. According to the width coefficient and y2, the y-direction coordinate y2 indicating the position on the display screen can be obtained.
  • step S3 the operating device preferably transmits the coordinates of the indicated position on the display screen at the current time to the display device by wireless, so that the display device performs the indicated position on the display screen.
  • Display processing The display processing performed by the display device may be a display spot or an aperture, which is not limited in this embodiment.
  • the coordinates of the current time indicating position in the display screen can be calculated.
  • the method described in the above steps S1 to S3 often has a display blind zone, and when the operating device is far away from the display device, the recognition of the location identifier is low, and thus the method described in the above steps S1 to S3 cannot be directly used.
  • the calculation is performed, and the present embodiment overcomes the disadvantages of the methods described in the above steps S1 to S3 by steps S4 and S5.
  • Step S4 of this embodiment includes:
  • the operating device determines, according to the size of the display screen and the size ratio of the position identifier in the display screen coordinate system and the shooting screen coordinate system, the display screen is mapped to the analog display in the shooting screen coordinate system.
  • the operating device determines, according to the coordinates of the position identifier in the shooting picture coordinate system at the current time, that the display screen is mapped to a position of an analog display screen in the shooting picture coordinate system.
  • Step S5 of the embodiment is specifically: the operating device causes the analog display screen to be all included in the shooting screen by auto-focusing, and satisfies: L1/L0 ⁇ a or W1/W0 ⁇ b; wherein a and b is a fixed value; L0 is the length of the analog display screen, W0 is the width of the analog display screen, L1 is the length of the captured screen, and W1 is the width of the captured screen.
  • the automatic display of the analog display screen is included in the photographing screen, and the operation device can always ensure that the position marker can be photographed; and the auto-focusing makes the photographed screen and the simulated display screen satisfy L1/L0. ⁇ a or W1/W0 ⁇ b, it is guaranteed that the position mark can be recognized on the shooting screen.
  • the auto focus is digital focus or optical focus.
  • the digital focus is achieved by zooming in and out of the captured image;
  • the optical focus is achieved by changing the focal length of the lens by changing the position of the lens lens group.
  • the display screen can be mapped to the analog display screen in the shooting screen coordinate system, and the analog display screen is kept in the preset screen range of the shooting screen coordinate system by auto-focusing, so that the present
  • the position display method of the embodiment of the invention does not have a display blind zone, and is in operation When the distance display device is far away, it is ensured that the recognition of the position identifier is not too low, and the coordinates of the indication position in the display screen coordinate system can always be calculated by the coordinates of the position identifier in the shooting picture coordinate system.
  • the location identifier comprises a first location identifier and a second location identifier.
  • the first location identifier and the second location identifier are any objects that can be recognized by the operating device.
  • the first location identifier and the second location identifier are both infrared. LED.
  • the position marker may be disposed at any position of the display device, such as a frame of the display screen or a display screen; preferably, the position marker is disposed at a center point of the display screen.
  • the coordinates of the position identifier in the shooting picture coordinate system at the current time are: the current midpoint of the connection between the first position identifier and the second position identifier is The coordinates of the frame coordinate system are captured.
  • the coordinates of the position identifier in the shooting picture coordinate system at the current time are: the coordinates of the first position identifier in the shooting picture coordinate system at the current time.
  • the coordinates of the position identifier in the shooting picture coordinate system at the current time are: the coordinates of the second position identifier in the shooting picture coordinate system at the current time.
  • the ratio of the size of the position identifier in the display screen coordinate system to the photographing screen coordinate system at the current time is: the distance between the first position identifier and the second position identifier in the display screen coordinate system at the current time and The ratio of the distance of the picture coordinate system.
  • FIG. 4 is a schematic diagram showing the state of the current time display screen and the shooting screen.
  • a solid line frame indicates a display screen
  • a broken line frame indicates a shooting screen.
  • A denotes a coordinate of the position marker in the photographing screen, which is a midpoint of the connection of the first position marker and the second position marker
  • B denotes a coordinate indicating the position in the display screen.
  • This implementation The ultimate goal of the example is to obtain the specific coordinates of B and display it by the display device to indicate the position indicated by the operating device.
  • steps S2, S4 and S5 are performed simultaneously in the embodiment of the present invention, and thus the auto focus is automatically adjusted in real time.
  • an embodiment of the present invention further provides an operation device for position indication.
  • FIG. 5 it is a structural block diagram of an operation device for position indication according to an embodiment of the present invention, which includes:
  • the photographing module 1 is configured to instruct an arbitrary position on the display screen of the display device from the non-contact position, and take an image of the indicated position to obtain a photographing screen; wherein the display device is provided with a position identifier;
  • the coordinate acquiring module 2 is configured to acquire coordinates of the indicated position in the display screen coordinate system according to the coordinates of the position identifier in the shooting picture coordinate system according to the current time;
  • a coordinate sending module 3 configured to send coordinates of the indicated position in the display screen coordinate system at the current time to the display device, so that the display device performs display processing on the indicated position on the display screen;
  • the screen simulation module 4 is configured to: according to the size of the display screen, the size ratio of the position identifier in the display screen coordinate system and the photographing screen coordinate system, and the position identifier in the photographing screen coordinate system at the current time Coordinates, and the display screen is mapped to an analog display screen in the coordinate system of the shooting screen;
  • the auto-focusing module 5 is configured to keep the analog display screen in a preset screen range of the photographing screen coordinate system by auto-focusing.
  • FIG. 6 is a structural block diagram of the picture simulation module 4 in FIG.
  • the picture simulation module 4 includes:
  • the size calculation unit 41 is configured to determine, according to the size of the display screen, the size ratio of the position identifier in the display screen coordinate system and the photographing screen coordinate system, the simulation of the display screen mapping into the photographing screen coordinate system. Display the size of the screen;
  • the position calculating unit 42 is configured to determine, according to the coordinates of the position identifier in the shooting picture coordinate system at the current time, the position of the display screen mapped to the simulated display screen in the shooting picture coordinate system.
  • FIG. 7 is a structural block diagram of the coordinate acquiring module 2 in FIG. 5 .
  • the coordinate acquisition module 2 includes:
  • the coordinate recognition unit 21 is configured to acquire coordinates (x1, y1) of the position identifier in the shooting picture coordinate system at the current time;
  • the location identifier comprises a first location identifier and a second location identifier
  • the coordinates of the position identifier in the photographing frame coordinate system at the current time are specifically: the coordinates of the line midpoint of the first position identifier and the second position identifier at the current time in the photographing frame coordinate system;
  • the ratio of the size of the position identifier in the display screen coordinate system to the photographing screen coordinate system at the current time is specifically: the current position and the first position identifier and the second position identifier are displayed on the display The ratio of the distance of the surface coordinate system to the distance in the coordinate system of the captured image.
  • the first location identifier and the second location identifier are both infrared LED lights.
  • the auto-focusing module 5 specifically includes the analog display screen in the photographing screen by auto-focusing, and satisfies: L1/L0 ⁇ a or W1/W0 ⁇ b; wherein a and b are The fixed value; L0 is the length of the analog display screen, W0 is the width of the analog display screen, L1 is the length of the captured screen, and W1 is the width of the captured screen.
  • the auto focus is digital focus or optical focus.
  • the coordinate sending module 3 is configured to send, by using wireless, coordinates of the indication position in the display screen coordinate system at the current time to the display device, so that the display device is on the display screen. Display processing is performed on the indicated position.
  • the operation device for position indication provided by the embodiment of the present invention is used to perform all the method steps of the above-mentioned position indication method, and the working principle and the beneficial effects of the two are in one-to-one correspondence, and thus will not be described again.
  • an embodiment of the present invention further provides a display system including a display device and the above-described operation device for position indication.
  • an embodiment of the present invention provides a position indication method, an operation device for position indication, and a display system, wherein the position indication method includes the operation device from non-contact.
  • the method adopts an operation device with a camera function, instead of a laser pointer, which does not cause damage or harm to the human eye, and can be applied to any display device; at the same time, the method can overcome the blindness caused by shooting blind spots.
  • the normal display and the fact that the operating device is far away from the display device are difficult to identify due to the low resolution of the operating device to the position marker.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

一种位置指示方法、用于位置指示的操作装置与显示系统,方法包括操作装置对显示装置的显示画面上的指示位置拍摄;根据位置标识物在拍摄画面中的坐标,获取指示位置在显示画面上的坐标;操作装置将指示位置在显示画面上的坐标发送到显示装置进行显示处理;操作装置根据拍摄画面模拟显示画面,并通过自动调焦使模拟的显示画面保持位于拍摄画面坐标系的预设画面范围中(S5)。本方法通过操作装置自动调焦使拍摄画面总能拍摄到显示画面中的位置标识物,克服了因为拍摄盲区导致无法正常指示的缺陷。

Description

位置指示方法、用于位置指示的操作装置与显示系统 技术领域
本发明涉及电子显示技术领域,尤其涉及一种位置指示方法、用于位置指示的操作装置与显示系统。
背景技术
在会议或者教学场景下,演讲者通常使用激光指示器来投射一个光点到屏幕上,从而指示屏幕上的一个特定位置。激光指示器,又称为激光笔、指星笔等,是把可见激光设计成便携、手易握、激光模组(发光二极管)加工成的笔型发射器。
采用激光指示器进行位置指示有两个缺陷:
第一,市面上售卖的激光笔和激光手电,不少是属于IIIB级的,功率超过5mW,如果激光直射进眼睛可能会对眼睛造成伤害。一些高功率的激光笔,漫射光也可能对眼睛造成伤害,对焦后更可能燃点易燃品;
第二,对于采用玻璃作为显示屏的显示设备,激光指示器投射到显示屏时由于玻璃的全反射而无法形成光点。
现有技术还有一种方案是不采用激光指示器,而是采用摄像指示器。具体地,在指示器上设置摄像模块,在显示画面上设置位置标志物,指示器根据所述位置标识物在摄像画面中的坐标计算出指示器所指示的位置在显示画面的坐标,以使显示器对指示位置进行显示处理。
这种方案虽然不存在激光指示器的缺陷,但是其使用距离受到较大限制。 当指示器距离显示画面太近时,摄像画面只能拍摄到显示画面的一部分区域,使得指示器在移动过程中,很容易拍摄不到位置标识物,即存在拍摄盲区;当指示器距离显示画面太远时,摄像画面对位置标识物的解析度将降低,同时当指示器输入较小的变化量时,在显示画面中会产生较大的变化量,对操作者的操作精度也提出了更高的要求。
发明内容
针对上述问题,本发明的目的在于提供一种位置指示方法、用于位置指示的操作装置与显示系统,适用于各种显示设备,并且精确地指示需要指示的位置,避免了拍摄盲区导致无法正常指示的情况。
为了实现上述目的,本发明一方面提供了一种位置指示方法,包括:
操作装置从非接触的位置上指示显示装置的显示画面上的任意位置,并拍摄指示位置的图像以得到拍摄画面;其中,所述显示装置上设置有位置标识物;
操作装置根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;
操作装置将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理;
操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;
操作装置通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的 预设画面范围中。
优选地,所述操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面,包括:
所述操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的大小;
所述操作装置根据所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的位置。
优选地,所述操作装置根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标,包括:
所述操作装置获取当前时刻所述位置标识物在拍摄画面坐标系中的坐标(x1,y1);
所述操作装置根据所述坐标(x1,y1)计算出所述当前时刻所述指示位置在所述显示画面上的坐标(x2,y2);其中,x2=x1·L2/L1,y2=y1·W2/W1;L1为所述拍摄画面的长,L2为所述显示画面的长,W1为所述拍摄画面的宽,W2为所述显示画面的宽。
优选地,所述位置标识物包括第一位置标识物与第二位置标识物;
所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标具体为:当前时刻所述第一位置标识物及所述第二位置标识物的连线中点在拍摄画面坐标系的坐标;
所述当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例具体为:当前时刻所述第一位置标识物与所述第二位置标识物在显示画面坐标系的距离及在拍摄画面坐标系的距离的比例。
优选地,所述第一位置标识物及所述第二位置标识物均为红外LED灯。
优选地,所述操作装置通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中具体为:所述操作装置通过自动调焦使所述模拟显示画面全部包含在所述拍摄画面中,且满足:L1/L0<a或W1/W0<b;其中a和b为定值;L0为所述模拟显示画面的长,W0为所述模拟显示画面的宽,L1为所述拍摄画面的长,W1为所述拍摄画面的宽。
优选地,所述自动调焦为数码调焦或光学调焦。
优选地,所述操作装置具体通过无线将当前时刻所述指示位置在所述显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理。
为了实现相同的目的,本发明另一方面提供了一种用于位置指示的操作装置,包括:
拍摄模块:用于从非接触的位置上指示显示装置的显示画面上的任意位置,并拍摄指示位置的图像以得到拍摄画面;其中,所述显示装置上设置有位置标识物;
坐标获取模块:用于根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;
坐标发送模块:用于将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进 行显示处理;
画面模拟模块:用于根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;
自动调焦模块:用于通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中。
优选地,所述画面模拟模块包括:
大小计算单元:用于根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的大小;
位置计算单元:用于根据所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的位置。
优选地,所述坐标获取模块包括:
坐标识别单元:用于获取当前时刻所述位置标识物在拍摄画面坐标系中的坐标(x1,y1);
坐标计算单元:用于根据所述坐标(x1,y1)计算出所述当前时刻所述指示位置在所述显示画面上的坐标(x2,y2);其中,x2=x1·L2/L1,y2=y1·W2/W1;L1为所述拍摄画面的长,L2为所述显示画面的长,W1为所述拍摄画面的宽,W2为所述显示画面的宽。
优选地,所述位置标识物包括第一位置标识物与第二位置标识物;
所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标具体为:当前时 刻所述第一位置标识物及所述第二位置标识物的连线中点在拍摄画面坐标系的坐标;
所述当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例具体为:当前时刻所述第一位置标识物与所述第二位置标识物在显示画面坐标系的距离及在拍摄画面坐标系的距离的比例。
优选地,所述第一位置标识物及所述第二位置标识物均为红外LED灯。
优选地,所述自动调焦模块具体通过自动调焦使所述模拟显示画面全部包含在所述拍摄画面中,且满足:L1/L0<a或W1/W0<b;其中a和b为定值;L0为所述模拟显示画面的长,W0为所述模拟显示画面的宽,L1为所述拍摄画面的长,W1为所述拍摄画面的宽。
优选地,所述自动调焦为数码调焦或光学调焦。
优选地,所述坐标发送模块具体用于通过无线将当前时刻所述指示位置在所述显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理。
本发明还提供了一种显示系统,包括显示装置以及上述的用于位置指示的操作装置。
相比于现有技术,本发明实施例的有益效果在于:本发明实施例提供了一种位置指示方法、用于位置指示的操作装置与显示系统,其中位置指示方法包括操作装置从非接触的位置上指示显示装置的显示画面上的任意位置,并对指示位置拍摄以得到拍摄画面;操作装置根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;操作装置将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显 示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理;操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;操作装置通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中。本方法采用的是具有摄像功能的操作装置,而不是激光指示器,不会对人眼造成损伤或者危害,并且可以适用于任意的显示设备;同时,通过本方法,克服了因拍摄盲区导致无法正常显示,以及操作装置距离显示设备距离较远时因操作装置对位置标识物的解析度低导致难以识别的问题。
附图说明
为了更清楚地说明本发明的技术方案,下面将对实施方式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发明的一些实施方式,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。
图1是本发明实施例提供的一种位置指示方法的流程示意图;
图2是图1中的步骤S2的具体流程示意图;
图3是图1中的步骤S4的具体流程示意图;
图4是当前时刻显示画面与拍摄画面的状态示意图;
图5是本发明实施例提供的一种用于位置指示的操作装置的结构框图;
图6是图5中的画面模拟模块4的结构框图;
图7是图5中的坐标获取模块2的结构框图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明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发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
请参阅图1,其是本发明实施例提供的一种位置指示方法的流程示意图,包括:
S1,操作装置从非接触的位置上指示显示装置的显示画面上的任意位置,并拍摄指示位置的图像以得到拍摄画面;其中,所述显示装置上设置有位置标识物;
S2,操作装置根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;
S3,操作装置将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理;
S4,操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;
S5,操作装置通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中。
为了符合用户的使用习惯,所述操作装置可以被加工为笔状。
在步骤S1中,操作装置具体是通过设置在操作装置本体上的摄像头来进行拍摄。摄像头可以设置在操作装置的前端或者侧端。
请参阅图2,其是图1中的步骤S2的具体流程示意图。在本实施例中,步骤S2包括:
S21,所述操作装置获取当前时刻所述位置标识物在拍摄画面坐标系中的坐标(x1,y1);
S22,所述操作装置根据所述坐标(x1,y1)计算出所述当前时刻所述指示位置在所述显示画面上的坐标(x2,y2);其中,x2=x1·L2/L1,y2=y1·W2/W1;L1为所述拍摄画面的长,L2为所述显示画面的长,W1为所述拍摄画面的宽,W2为所述显示画面的宽。
L2/L1以及W2/W1实际上是将拍摄画面的坐标系转变为显示画面的坐标系的长系数以及宽系数,因此根据长系数以及x1即可得到指示位置在显示画面的x方向的坐标x2,根据宽系数以及y2即可得到指示位置在显示画面的y方向坐标y2。
在步骤S3中,操作装置优选通过无线将当前时刻所述指示位置在所述显示画面上的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理。所述显示装置进行显示处理可以是显示光点或者光圈,在本实施例中不作限定。
通过上述步骤S1到S3所述的方法,在当前时刻的拍摄画面中识别到所述位置标识物时可以计算出当前时刻指示位置在显示画面中的坐标。但是上述步骤S1到S3所述的方法往往存在显示盲区,且在操作装置距离显示设备距离较远时,对位置标识物识别度低,因而无法直接用上述步骤S1到S3所述的方法 进行计算,而本实施例通过步骤S4及S5克服上述步骤S1到S3所述的方法的缺点。
请参阅图3,其是图1中的步骤S4的具体流程示意图。本实施例的步骤S4包括:
S41,所述操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的大小;
S42,所述操作装置根据所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的位置。
本实施例的步骤S5具体为:所述操作装置通过自动调焦使所述模拟显示画面全部包含在所述拍摄画面中,且满足:L1/L0<a或W1/W0<b;其中a和b为定值;L0为所述模拟显示画面的长,W0为所述模拟显示画面的宽,L1为所述拍摄画面的长,W1为所述拍摄画面的宽。
通过自动调焦使所述模拟显示画面全部包含在所述拍摄画面中,能保证所述操作装置始终能拍摄到所述位置标识物;通过自动调焦使拍摄画面与模拟显示画面满足L1/L0<a或W1/W0<b,能保证拍摄画面能识别到位置标识物。
优选地,所述自动调焦为数码调焦或光学调焦。具体地,所述数码调焦通过对拍摄画面的放大和缩小实现;所述光学调焦通过改变镜头镜片组的位置调整镜头的焦距实现。
通过所述步骤S4及S5,能得到显示画面映射到拍摄画面坐标系中的模拟显示画面,并通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中,使本发明实施例的位置显示方法不存在显示盲区,且在操作装 置距离显示设备距离较远时,保证对位置标识物识别度不至于太低,始终能通过位置标识物在拍摄画面坐标系中的坐标计算出指示位置在显示画面坐标系中的坐标。
优选地,所述位置标识物包括第一位置标识物与第二位置标识物。其中,所述第一位置标识物与第二位置标识物为任意可以被操作装置能够识别的物体,在本实施例中,所述第一位置标识物与所述第二位置标识物均为红外LED。
所述位置标志物可以设置在显示装置的任一位置,例如显示画面的边框或者显示画面上;优选地,所述位置标志物设置在所述显示画面的中心点。
在第一种实施例中,所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标为:当前时刻所述第一位置标识物及所述第二位置标识物的连线中点在拍摄画面坐标系的坐标。
在第二种实施例中,所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标为:当前时刻所述第一位置标识物在拍摄画面坐标系的坐标。
在第三种实施例中,所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标为:当前时刻所述第二位置标识物在拍摄画面坐标系的坐标。
所述当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例为:当前时刻所述第一位置标识物与所述第二位置标识物在显示画面坐标系的距离及在拍摄画面坐标系的距离的比例。
为了清楚本实施例的工作原理,请同时参阅图4。其中,图4是当前时刻显示画面与拍摄画面的状态示意图。在图4中,实线框表示显示画面,虚线框表示拍摄画面。A表示位置标识物在拍摄画面中的坐标,其为第一位置标识物及第二位置标识物的连线中点,B表示指示位置在显示画面中的坐标。本实施 例的最终目的是要得到B的具体坐标,并且通过显示装置显示,以指示操作装置所指示的位置。
应当指出,所述步骤S2、S4及S5在本发明实施例中同时进行,因而自动调焦为实时自动调焦。
为了执行上述的一种位置指示方法,本发明实施例还提供了一种用于位置指示的操作装置。
请参阅图5,其是本发明实施例提供的一种用于位置指示的操作装置的结构框图,其包括:
拍摄模块1:用于从非接触的位置上指示显示装置的显示画面上的任意位置,并拍摄指示位置的图像以得到拍摄画面;其中,所述显示装置上设置有位置标识物;
坐标获取模块2:用于根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;
坐标发送模块3:用于将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理;
画面模拟模块4:用于根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;
自动调焦模块5:用于通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中。
请参阅图6,其是图5中的画面模拟模块4的结构框图。
优选地,所述画面模拟模块4包括:
大小计算单元41:用于根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的大小;
位置计算单元42:用于根据所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的位置。
请参阅图7,其是图5中的坐标获取模块2的结构框图。
优选地,所述坐标获取模块2包括:
坐标识别单元21:用于获取当前时刻所述位置标识物在拍摄画面坐标系中的坐标(x1,y1);
坐标计算单元22:用于根据所述坐标(x1,y1)计算出所述当前时刻所述指示位置在所述显示画面上的坐标(x2,y2);其中,x2=x1·L2/L1,y2=y1·W2/W1;L1为所述拍摄画面的长,L2为所述显示画面的长,W1为所述拍摄画面的宽,W2为所述显示画面的宽。
优选地,所述位置标识物包括第一位置标识物与第二位置标识物;
所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标具体为:当前时刻所述第一位置标识物及所述第二位置标识物的连线中点在拍摄画面坐标系的坐标;
所述当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例具体为:当前时刻所述第一位置标识物与所述第二位置标识物在显示画 面坐标系的距离及在拍摄画面坐标系的距离的比例。
优选地,所述第一位置标识物及所述第二位置标识物均为红外LED灯。
优选地,所述自动调焦模块5具体通过自动调焦使所述模拟显示画面全部包含在所述拍摄画面中,且满足:L1/L0<a或W1/W0<b;其中a和b为定值;L0为所述模拟显示画面的长,W0为所述模拟显示画面的宽,L1为所述拍摄画面的长,W1为所述拍摄画面的宽。
优选地,所述自动调焦为数码调焦或光学调焦。
优选地,所述坐标发送模块3具体用于通过无线将当前时刻所述指示位置在所述显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理。
需要说明的是,本发明实施例提供的一种用于位置指示的操作装置用于执行上述的位置指示方法的所有方法步骤,两者的工作原理和有益效果一一对应,因而不再赘述。
同时,本发明实施例还提供了一种显示系统,包括显示装置以及上述用于位置指示的操作装置。
相比于现有技术,本发明实施例的有益效果在于:本发明实施例提供了一种位置指示方法、用于位置指示的操作装置与显示系统,其中位置指示方法包括操作装置从非接触的位置上指示显示装置的显示画面上的任意位置,并对指示位置拍摄以得到拍摄画面;操作装置根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;操作装置将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理; 操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;操作装置通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中。本方法采用的是具有摄像功能的操作装置,而不是激光指示器,不会对人眼造成损伤或者危害,并且可以适用于任意的显示设备;同时,通过本方法,克服了因拍摄盲区导致无法正常显示,以及操作装置距离显示设备距离较远时因操作装置对位置标识物的解析度低导致难以识别的问题。
以上所揭露的仅为本发明一种较佳实施例而已,当然不能以此来限定本发明之权利范围,本领域普通技术人员可以理解实现上述实施例的全部或部分流程,并依本发明权利要求所作的等同变化,仍属于发明所涵盖的范围。
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,所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory,ROM)或随机存储记忆体(Random Access Memory,RAM)等。

Claims (17)

  1. 一种位置指示方法,其特征在于,包括:
    操作装置从非接触的位置上指示显示装置的显示画面上的任意位置,并拍摄指示位置的图像以得到拍摄画面;其中,所述显示装置上设置有位置标识物;
    操作装置根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;
    操作装置将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理;
    操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;
    操作装置通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中。
  2. 如权利要求1所述的位置指示方法,其特征在于:
    所述操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面,包括:
    所述操作装置根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例,确定所述显示画面映射到拍摄画面 坐标系中的模拟显示画面的大小;
    所述操作装置根据所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的位置。
  3. 如权利要求1所述的位置指示方法,其特征在于,所述操作装置根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标,包括:
    所述操作装置获取当前时刻所述位置标识物在拍摄画面坐标系中的坐标(x1,y1);
    所述操作装置根据所述坐标(x1,y1)计算出所述当前时刻所述指示位置在所述显示画面上的坐标(x2,y2);其中,x2=x1·L2/L1,y2=y1·W2/W1;L1为所述拍摄画面的长,L2为所述显示画面的长,W1为所述拍摄画面的宽,W2为所述显示画面的宽。
  4. 如权利要求1至3任一项所述的位置指示方法,其特征在于,所述位置标识物包括第一位置标识物与第二位置标识物;
    所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标具体为:当前时刻所述第一位置标识物及所述第二位置标识物的连线中点在拍摄画面坐标系的坐标;
    所述当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例具体为:当前时刻所述第一位置标识物与所述第二位置标识物在显示画面坐标系的距离及在拍摄画面坐标系的距离的比例。
  5. 如权利要求4所述的位置指示方法,其特征在于,所述第一位置标识物及所述第二位置标识物均为红外LED灯。
  6. 如权利要求1所述的位置指示方法,其特征在于,所述操作装置通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中具体为:所述操作装置通过自动调焦使所述模拟显示画面全部包含在所述拍摄画面中,且满足:L1/L0<a或W1/W0<b;其中a和b为定值;L0为所述模拟显示画面的长,W0为所述模拟显示画面的宽,L1为所述拍摄画面的长,W1为所述拍摄画面的宽。
  7. 如权利要求1或6所述的位置指示方法,其特征在于,所述自动调焦为数码调焦或光学调焦。
  8. 如权利要求1所述的位置指示方法,其特征在于,所述操作装置具体通过无线将当前时刻所述指示位置在所述显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理。
  9. 一种用于位置指示的操作装置,其特征在于,包括:
    拍摄模块:用于从非接触的位置上指示显示装置的显示画面上的任意位置,并拍摄指示位置的图像以得到拍摄画面;其中,所述显示装置上设置有位置标 识物:
    坐标获取模块:用于根据当前时刻所述位置标识物在拍摄画面坐标系中的坐标,获取当前时刻所述指示位置在显示画面坐标系中的坐标;
    坐标发送模块:用于将当前时刻所述指示位置在显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理;
    画面模拟模块:用于根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例、当前时刻所述位置标识物在拍摄画面坐标系中的坐标,得到所述显示画面映射到拍摄画面坐标系中的模拟显示画面;
    自动调焦模块:用于通过自动调焦使所述模拟显示画面保持位于拍摄画面坐标系的预设画面范围中。
  10. 如权利要求9所述的用于位置指示的操作装置,其特征在于,所述画面模拟模块包括:
    大小计算单元:用于根据所述显示画面的尺寸、当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的大小;
    位置计算单元:用于根据所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标,确定所述显示画面映射到拍摄画面坐标系中的模拟显示画面的位置。
  11. 如权利要求9所述的用于位置指示的操作装置,其特征在于,所述坐 标获取模块包括:
    坐标识别单元:用于获取当前时刻所述位置标识物在拍摄画面坐标系中的坐标(x1,y1);
    坐标计算单元:用于根据所述坐标(x1,y1)计算出所述当前时刻所述指示位置在所述显示画面上的坐标(x2,y2);其中,x2=x1·L2/L1,y2=y1·W2/W1;L1为所述拍摄画面的长,L2为所述显示画面的长,W1为所述拍摄画面的宽,W2为所述显示画面的宽。
  12. 如权利要求9至11任一项所述的用于位置指示的操作装置,其特征在于,所述位置标识物包括第一位置标识物与第二位置标识物;
    所述当前时刻所述位置标识物在拍摄画面坐标系中的坐标具体为:当前时刻所述第一位置标识物及所述第二位置标识物的连线中点在拍摄画面坐标系的坐标;
    所述当前时刻所述位置标识物在显示画面坐标系与拍摄画面坐标系的尺寸比例具体为:当前时刻所述第一位置标识物与所述第二位置标识物在显示画面坐标系的距离及在拍摄画面坐标系的距离的比例。
  13. 如权利要求12所述的用于位置指示的操作装置,其特征在于,所述第一位置标识物及所述第二位置标识物均为红外LED灯。
  14. 如权利要求9所述的用于位置指示的操作装置,其特征在于,所述自动调焦模块具体通过自动调焦使所述模拟显示画面全部包含在所述拍摄画面 中,且满足:L1/L0<a或W1/W0<b;其中a和b为定值;L0为所述模拟显示画面的长,W0为所述模拟显示画面的宽,L1为所述拍摄画面的长,W1为所述拍摄画面的宽。
  15. 如权利要求9或14所述的用于位置指示的操作装置,其特征在于,所述自动调焦为数码调焦或光学调焦。
  16. 如权利要求9所述的用于位置指示的操作装置,其特征在于,所述坐标发送模块具体用于通过无线将当前时刻所述指示位置在所述显示画面坐标系中的坐标发送到所述显示装置,以使所述显示装置在所述显示画面上对所述指示位置进行显示处理。
  17. 一种显示系统,其特征在于,包括显示装置以及如权利要求9~16任一项所述的用于位置指示的操作装置。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110944154A (zh) * 2019-12-05 2020-03-31 山东八五信息技术有限公司 一种高空瞭望摄像头图像中固定物体的标注与识别方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108052213A (zh) * 2017-11-21 2018-05-18 广州视源电子科技股份有限公司 一种位置指示方法、装置及系统
CN110264516A (zh) * 2019-05-27 2019-09-20 山东科技大学 一种光线枪激光笔指向位置确定系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101364089A (zh) * 2008-09-12 2009-02-11 深圳市合信自动化技术有限公司 可调整工业人机界面显示画面对象的方法及相关装置
US20110316771A1 (en) * 2009-03-05 2011-12-29 Sharp Kabushiki Kaisha Display apparatus, television reception apparatus and pointing system
CN102411854A (zh) * 2011-09-01 2012-04-11 苏州梦想人软件科技有限公司 基于增强现实的课堂教学混合技术应用系统及方法
CN102622108A (zh) * 2012-01-18 2012-08-01 深圳市中科睿成智能科技有限公司 一种交互式投影系统及其实现方法
CN103425409A (zh) * 2013-07-30 2013-12-04 华为终端有限公司 投影显示的控制方法和装置
CN106095178A (zh) * 2016-06-14 2016-11-09 广州视睿电子科技有限公司 输入设备识别方法和系统、输入指令识别方法和系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4745317B2 (ja) * 2007-11-07 2011-08-10 シャープ株式会社 表示システムおよび指示位置の検出方法
JP4745316B2 (ja) * 2007-11-07 2011-08-10 シャープ株式会社 表示システムおよび指示位置の検出方法
JP4780205B2 (ja) * 2009-02-23 2011-09-28 カシオ計算機株式会社 撮像装置、画角調節方法、及び、プログラム
CN102426479A (zh) * 2011-10-26 2012-04-25 上海量明科技发展有限公司 采集指示信息输出的方法、终端及系统
JP2015082301A (ja) * 2013-10-24 2015-04-27 シャープ株式会社 画像処理装置、画像処理方法、デジタルペン、制御プログラムおよび記録媒体
CN104717427B (zh) * 2015-03-06 2018-06-08 广东欧珀移动通信有限公司 一种自动变焦方法、装置和移动终端
CN106484142A (zh) * 2015-08-26 2017-03-08 天津三星电子有限公司 一种实现显示屏幕的遥控方法
CN106375666B (zh) * 2016-09-26 2019-04-16 成都臻识科技发展有限公司 一种基于车牌的自动对焦方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101364089A (zh) * 2008-09-12 2009-02-11 深圳市合信自动化技术有限公司 可调整工业人机界面显示画面对象的方法及相关装置
US20110316771A1 (en) * 2009-03-05 2011-12-29 Sharp Kabushiki Kaisha Display apparatus, television reception apparatus and pointing system
CN102411854A (zh) * 2011-09-01 2012-04-11 苏州梦想人软件科技有限公司 基于增强现实的课堂教学混合技术应用系统及方法
CN102622108A (zh) * 2012-01-18 2012-08-01 深圳市中科睿成智能科技有限公司 一种交互式投影系统及其实现方法
CN103425409A (zh) * 2013-07-30 2013-12-04 华为终端有限公司 投影显示的控制方法和装置
CN106095178A (zh) * 2016-06-14 2016-11-09 广州视睿电子科技有限公司 输入设备识别方法和系统、输入指令识别方法和系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110944154A (zh) * 2019-12-05 2020-03-31 山东八五信息技术有限公司 一种高空瞭望摄像头图像中固定物体的标注与识别方法

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