WO2017185486A1 - Projecteur, système de conférence, et procédé de commande de projecteur - Google Patents

Projecteur, système de conférence, et procédé de commande de projecteur Download PDF

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Publication number
WO2017185486A1
WO2017185486A1 PCT/CN2016/085060 CN2016085060W WO2017185486A1 WO 2017185486 A1 WO2017185486 A1 WO 2017185486A1 CN 2016085060 W CN2016085060 W CN 2016085060W WO 2017185486 A1 WO2017185486 A1 WO 2017185486A1
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WO
WIPO (PCT)
Prior art keywords
projection device
camera
audio
sound source
projection
Prior art date
Application number
PCT/CN2016/085060
Other languages
English (en)
Chinese (zh)
Inventor
张永亮
Original Assignee
中兴通讯股份有限公司
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Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2017185486A1 publication Critical patent/WO2017185486A1/fr

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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
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • 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]
    • H04N9/3141—Constructional details thereof
    • H04N9/3147—Multi-projection systems

Definitions

  • the present invention relates to the field of communications, and in particular to a projection device, a conference system, and a projection device control method.
  • a projection apparatus includes: a camera disposed at a top of a projection device for detecting a 360-degree panoramic image within a field of view of the camera; and a communication component coupled to the camera for use in The above picture is sent to the remote projection device for shared display; the main processor is connected to the camera and the communication component for controlling the operation of the projection device.
  • the distance between the position of the camera at the top of the projection device and the front end of the projection lens is less than or equal to a first predetermined threshold, wherein the lens of the camera protrudes, and the lens is higher than the plane of the top of the projection device.
  • the transmission device comprises at least one of: an ejection member for raising the height of the lens by ejection; and a rotating member for raising the height of the lens by the rotation.
  • the device further includes: a first audio collection component and a second audio collection component, configured to collect audio of an environment in which the projection device is located; a first sounding component and a second sounding component, where the projection device is located Play audio.
  • the first sounding component is disposed on one side of the projection device; the second sounding component is disposed on the other side of the projection device; or the first sounding component and the second sounding component are disposed on the projection The same side of the device.
  • a distance between the first audio collection component and the second audio collection component is not less than a third predetermined threshold; a distance between the first audio collection component and the first sounding component and the second sounding component The distance between the second audio collecting component and the first sounding component and the second sounding component is greater than the fourth predetermined threshold, respectively, wherein the third predetermined threshold is less than the fourth predetermined threshold.
  • the third predetermined threshold is 50 millimeters
  • the fourth predetermined threshold is 14 centimeters.
  • a conference system comprising: a plurality of projection devices as described above, wherein a plurality of said projection devices include at least one proximal projection device and at least one remote projection device The plurality of pieces are less than a predetermined threshold.
  • the method further includes: a remote controller for remotely controlling the projection device; and a display screen for displaying a screen projected by the projection device.
  • a projection apparatus control method comprising: acquiring a 360-degree panoramic picture detected by a camera disposed at a top of a projection apparatus in a field of view; transmitting the picture to a remote projection apparatus Make a shared display.
  • the acquiring the 360-degree panoramic image detected by the camera disposed at the top of the projection device in the field of view includes: determining, by the first audio collection component and the second audio collection component, whether the audio of the environment of the projection device is collected; When the audio of the environment in which the projection device is located is collected, the position of the sound source that emits the audio is acquired; and the partial image in the panoramic picture is acquired according to the position of the sound source.
  • the obtaining, according to the location of the sound source, the partial image in the panoramic image comprises: determining whether the duration of the audio output by the single sound source exceeds a predetermined duration when the sound source is a single sound source; and acquiring when the predetermined time duration is exceeded.
  • the position of the above-mentioned single sound source is a corresponding partial picture in the above-mentioned panoramic picture.
  • the acquiring the partial image in the panoramic picture according to the position of the sound source includes: acquiring a position of the predetermined sound source when the sound source is a multi-sound source; and acquiring a partial screen corresponding to the position of the predetermined sound source in the panoramic screen.
  • the obtaining the location of the predetermined sound source comprises at least one of: acquiring a location of a default sound source, wherein the default sound source is a sound source located in a default direction; and timing polling acquires a position of each of the plurality of sound sources.
  • the acquiring the partial image in the panoramic image according to the position of the sound source includes: adjusting, when the camera is a rotating camera, adjusting the rotation of the rotating camera to align the sound source to obtain the partial image; or, in the camera In the case of the panoramic camera, the partial image acquired by the panoramic camera in the direction of the sound source is retrieved according to a predetermined algorithm.
  • a storage medium is also provided.
  • the storage medium is configured to store program code for performing the steps of: acquiring a 360-degree panoramic view of the camera set at the top of the projection device within the field of view; transmitting the above-described screen to the remote projection device for shared display.
  • the distance between the position of the camera on the top of the projection device and the front end provided with the projection lens is less than or equal to a first predetermined threshold, wherein the lens of the camera protrudes and the lens is higher than the plane of the top of the projection device.
  • the camera 204 is disposed at an edge position away from the front end of the optical lens 202.
  • the lens surface of the camera 204 is slightly convex, but does not exceed the front plane of the entire projection device, and the lower portion of the camera 204 has a small natural inclination to a flat surface.
  • the transmission device is connected to the camera and is disposed at the bottom of the camera to raise the height of the lens of the camera to the target height, wherein the target height is higher than the plane of the top of the projection device.
  • the transmission is exemplified by an ejection component.
  • an ejection component can be disposed on the base of the camera 204 to automatically eject the ejection component at the beginning of the conference so that the camera 204 can be shielded from the edge of the projection device. Better record the conference site and get a panoramic view.
  • the device also includes:
  • the first sounding component and the second sounding component are used to play audio at the location of the projection device.
  • the first sounding component is disposed at one side of the projection device; the second sounding component is disposed at The other side of the projection device; or, the first sounding component and the second sounding component are disposed on the same side of the projection device.
  • the audio collecting component may be a microphone, and the sounding component may be a speaker.
  • both speakers are in a sound chamber with a typical value of 30cc or more, and the speaker is driven with greater power and efficiency, which will achieve good conference sound effects.
  • the two speakers are disposed on the same side of the projection device, which will be more advantageous for the heat dissipation of the whole of the projection device; separating the two speakers on both sides will enhance the stereo effect to some extent.
  • the distance between the first audio collection component and the second audio collection component meets a third predetermined threshold; the distance between the first audio collection component and the first sounding component and the second sounding component is greater than The fourth predetermined threshold, the distance between the second audio collecting component and the first sounding component and the second sounding component is greater than a fourth predetermined threshold, respectively; wherein the third predetermined threshold is less than the fourth predetermined threshold.
  • the audio collecting component and the sounding component are configured according to the above distance, and the long-distance sound collecting function is realized, and the multi-person voice information within 10 meters can be clearly received, and in addition, the two sounding components can be effectively realized by setting two sounding components. Background noise cancellation.
  • FIG. 9 is a structural block diagram of a conference system according to an embodiment of the present invention. As shown in FIG. 9, the conference system includes:
  • the foregoing conference system may be, but is not limited to, applied to a small conference system with fewer projection devices.
  • data processing for all projection devices can be implemented by, but not limited to, a peripheral server.
  • the cameras in the field of view can be respectively acquired by the cameras capable of detecting the 360-degree panoramic view on the respective projection devices, thereby realizing the pair of images. Shared display of content.
  • the near-end projection device 902-1 shares the detected image to the far-end projection device 902-2 through a camera capable of detecting a 360-degree panorama so that the far-end projection device can be synchronized with the near-end projection device. Display the same content, so that participants in different locations can visually see the content of the meeting and ensure the smooth progress of the meeting.
  • the method further includes:
  • the display screen may be, but is not limited to, a display screen for displaying the screen content projected by the projection device through the projection lens.
  • S1002 acquiring a 360-degree panoramic image detected by a camera disposed at a top of the projection device in a field of view;
  • S1004 Send the screen to the remote projection device for shared display.
  • the foregoing camera includes at least one of the following:
  • the 360-degree panoramic camera of the fisheye bionic structure can detect the 360-degree panoramic image without rotation, but the local image image acquisition of the fixed-point azimuth area is called according to the sound source and other detection conditions. All screen information before and after the one-time recording, no post-synthesis, and multi-lens stitching.
  • the principle is based on bionics (fisheye structure) using physical optics spherical mirror transmission plus reflection principle to image 360 degrees horizontally and 180 degrees vertically, and then use corresponding software to pass orientation, resolution, field of view and distortion. The angle is converted and corrected, and the picture is presented in a manner that is familiar to the human eye.
  • the 360-degree panoramic camera of the fisheye bionic structure uses a seamless stitching technique for image capturing fields subdivided according to image orientation values in one-time recording of image information.
  • the camera 102 can be, but is not limited to, a camera capable of detecting a 360-degree panoramic view, and a panoramic view of the conference room is realized by acquiring a picture in a field of view of the camera. That is to say, the panoramic picture can be acquired through the above-mentioned camera on the projection device, and the partial picture in the panoramic picture can also be acquired.
  • the camera when the camera captures the panoramic image, the camera may, but is not limited to, directly acquiring the panoramic image, but may It is not limited to splicing to obtain a panoramic picture by acquiring a partial picture.
  • the hemispherical camera rotation that can be rotated 360 degrees can be adjusted, or the fisheye bionic structure 360 degree panoramic camera can be adjusted to retrieve the corresponding partial picture and/or all pictures in the panoramic picture through system calculation.
  • the control instruction of the control device such as a remote controller
  • the hemispherical camera rotation that can be rotated 360 degrees can be adjusted, or the fisheye bionic structure can be adjusted.
  • the 360-degree panoramic camera can calculate the corresponding partial image in the panoramic image through system calculation and/or All screens.
  • the distance between the position of the camera at the top of the projection device and the front end provided with the projection lens is greater than or equal to a second predetermined threshold. That is, as shown in Fig. 3, the top is at the center or at the rear end.
  • it may be, but is not limited to, providing a transmission device connected to the camera for raising the height of the lens of the camera to the target height, wherein the target height is higher than the plane of the top of the projection device .
  • a rotating camera provided at the rear of the front end of the projection lens is provided.
  • S1106 report each other according to the self-checking structure, and remove the abnormality
  • the camera intervenes through the remote control, voice control or application interface to adjust the content of the recording at any time (including projection content, etc.)
  • obtaining a 360-degree panoramic view of the camera disposed at the top of the projection device within the field of view includes:
  • S3 Acquire a partial picture in the panoramic picture according to the position of the sound source.
  • the position of the sound source of the audio may be sent according to the audio position collected by the audio collection component, thereby controlling the lens of the camera set on the adjustment projection device to be aligned with the sound source, and acquiring Partial picture in the panorama.
  • the conference system can determine the projection device that needs to share the image according to the audio collected by the audio collection component, so as to share the image detected by the camera on the projection device to other devices in the conference system.
  • the content to be shared is determined according to the location of the sound source that emits audio in the environment where the projection device is located, thereby realizing the panoramic sharing of the conference and improving the conference effect.
  • a predetermined duration is set, and it is determined whether a fixed speaker is speaking by determining whether the length of the emitted audio exceeds a predetermined duration. That is to say, when the duration of the audio generation exceeds the predetermined length of time, it can be determined that the speaker is emitting a voice, and further, the lens of the camera can be adjusted (to accurately capture the speaker. That is, to control the rotatable 360-degree panoramic view)
  • the camera rotates to achieve direct orientation of the speaker's directivity, or control the fisheye bionic structure 360 degree panoramic camera to retrieve partial images in the panoramic image through system calculation, and within the captured field of view Content is shared with other devices in the conferencing system.
  • obtaining a partial picture in the panoramic picture according to the location of the sound source includes:
  • acquiring the location of the predetermined sound source includes at least one of the following:
  • the projection device when the projection device detects the multi-tone source, the position of the predetermined sound source can be acquired according to a predetermined rule, thereby ensuring that the projection device can display the corresponding content.
  • obtaining a partial picture in the panoramic picture according to the location of the sound source includes:
  • a hemispherical camera that can rotate 360 degrees.
  • a narrow-view camera fixed to a rotatable 360-degree convex hemispherical undercarriage enables 360-degree panoramic scanning detection through the rotation of such a camera.
  • the camera is a panoramic camera
  • the partial image acquired by the panoramic camera in the direction of the sound source is retrieved according to a predetermined algorithm.
  • a 360-degree panoramic camera with a fisheye bionic structure can acquire a 360-degree panoramic image without rotation, but a local image capture of a fixed-point azimuth region is retrieved according to sound source and other detection conditions. All screen information before and after the one-time recording, no post-synthesis, and multi-lens stitching.
  • the principle is based on bionics (fisheye structure) using physical optics spherical mirror transmission plus reflection principle to image 360 degrees horizontally and 180 degrees vertically, and then use corresponding software to pass orientation, resolution, field of view and distortion. The angle is converted and corrected, and the picture is presented in a manner that is familiar to the human eye.
  • sending the picture to the remote projection device for shared display includes:
  • the screen is sent to the remote projection device for shared display in response to the control command.
  • the control of the projection device may be corresponding to adjusting the camera after automatically detecting the position of the sound source (adjusting the rotation of the hemispherical camera that can rotate 360 degrees, or adjusting the fisheye bionic structure 360 degree panoramic camera through the system) Calculate the corresponding partial screen and/or all screens in the panoramic screen.
  • the structured 360 degree panoramic camera retrieves the corresponding partial picture and/or all pictures in the panoramic picture by system calculation. Further, control of sharing of picture content can also be implemented in response to control instructions.
  • the near-end projection device can be, but is not limited to, being a control center in the conference system, and sharing the multiple projection devices (including the near-end projection device and the remote projection device). control.
  • the near-end projection device can be shared to the remote projection device, but also the near-end projection device can control the sharing of the image detected by the remote projection device to the near-end projection device display.
  • the screen content collected by each projection device is shared in the conference system.
  • the method further includes:
  • the near-end projection device can be used as a control center, and each of the projection devices can be controlled to display a default screen, and the detected images in the current field of view of each of the projection devices can be separately displayed by a timed polling manner.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the screen is sent to the remote projection device for shared display.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the projection device, the conference system and the projection device control method of the present application realize a 360-degree panoramic image detected within a field of view of the camera by using a camera on the top of the projection device, and are transmitted to the remote projection device through the communication component for shared display. Further, the technical problem that the screen content projected and displayed on the projection device cannot be shared in the prior art is overcome. Further, by using the camera and the communication component together, the sharing function is added for the smart projection device, and the operation steps of the remote conference can be simplified, and the conference can be established without complicated setup operations, thereby achieving the purpose of saving the conference time.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Studio Devices (AREA)

Abstract

L'invention concerne un projecteur (902-1, 902-2), un système de conférence, et un procédé de commande de projecteur. Le projecteur (902-1, 902-2) comprend : une caméra (102, 204) disposée sur une partie supérieure du projecteur (902-1, 902-2), permettant de détecter une image panoramique de 360 degrés dans une plage visible de la caméra (102, 204) ; un composant de communication (104), connecté à la caméra (102, 204), permettant d'envoyer l'image à un projecteur distant (902-2) et de partager un affichage ; et un processeur principal (106), connecté à la caméra (102, 204) et au composant de communication (104), permettant de commander le fonctionnement du projecteur (902-1, 902-2). L'invention aborde un problème selon lequel le projecteur (902-1, 902-2) est incapable de partager à distance un contenu d'image affiché. L'invention permet donc de partager le contenu d'image affiché du projecteur (902-1, 902-2).
PCT/CN2016/085060 2016-04-29 2016-06-07 Projecteur, système de conférence, et procédé de commande de projecteur WO2017185486A1 (fr)

Applications Claiming Priority (2)

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CN201610284325.6A CN107333117B (zh) 2016-04-29 2016-04-29 投影设备、会议系统及投影设备控制方法
CN201610284325.6 2016-04-29

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CN109471316A (zh) * 2019-01-03 2019-03-15 沈曾方 一种便携式数据线转接头投影装置
CN111629189A (zh) * 2019-02-28 2020-09-04 钉钉控股（开曼）有限公司 可分离式投影设备
CN113038103A (zh) * 2021-03-22 2021-06-25 青岛海信激光显示股份有限公司 应用于激光显示设备的激光投影主机和激光显示设备

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