CN110267073A - 一种投屏画面显示及投屏画面旋转方法 - Google Patents

一种投屏画面显示及投屏画面旋转方法 Download PDF

Info

Publication number
CN110267073A
CN110267073A CN201910673052.8A CN201910673052A CN110267073A CN 110267073 A CN110267073 A CN 110267073A CN 201910673052 A CN201910673052 A CN 201910673052A CN 110267073 A CN110267073 A CN 110267073A
Authority
CN
China
Prior art keywords
picture
display
signal
screen
throwing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910673052.8A
Other languages
English (en)
Inventor
李�杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Yingchuang Technology Co Ltd
Original Assignee
Shenzhen Yingchuang Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Yingchuang Technology Co Ltd filed Critical Shenzhen Yingchuang Technology Co Ltd
Priority to CN201910673052.8A priority Critical patent/CN110267073A/zh
Publication of CN110267073A publication Critical patent/CN110267073A/zh
Priority to KR1020190133910A priority patent/KR20210012863A/ko
Priority to JP2019202957A priority patent/JP2021021925A/ja
Priority to US16/695,263 priority patent/US11335297B2/en
Priority to EP19212801.5A priority patent/EP3770747A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/005—Adapting incoming signals to the display format of the display terminal
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/12—Synchronisation between the display unit and other units, e.g. other display units, video-disc players
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • H04N21/234372—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution for performing aspect ratio conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
    • H04N21/440272—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA for performing aspect ratio conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0042—Universal serial bus [USB]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0442—Handling or displaying different aspect ratios, or changing the aspect ratio
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/045—Zooming at least part of an image, i.e. enlarging it or shrinking it
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0492—Change of orientation of the displayed image, e.g. upside-down, mirrored
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

本发明公开了一种投屏画面显示及投屏画面旋转方法。它包括以下步骤：A、利用显示器的主控芯片接收手持终端画面信号参数；B、主控芯片通过侦测从手持终端上所输入的显示信号的强度来判断黑边及计算显示画面的开始位置；C、通过计算得出显示画面的宽度，与此同时，通过主控芯片的信号侦测直接得到显示信号的高度；D、利用控制单元提供的函数计算将画面放大到和手持终端等比例或全屏输出。采用上述的方法后，可以判断黑边及画面开始的位置，及无黑边画面的分辨率，另外，有效防止了画面显示比例失真，保证了画面显示的效果，最终，在显示器上变成“全屏无黑边”或“小黑边”画面，从而提高了视觉感受。

Description

一种投屏画面显示及投屏画面旋转方法
技术领域
本发明涉及一种信息显示技术，具体地说是一种投屏画面显示及投屏画面旋转方法。
背景技术
现有技术中，将手机与显示器之间进行投屏，使手机画面或视屏与显示器画面之间同屏显示已经成为人们越来越受欢迎的一种娱乐方式，然而，由于手机的屏幕尺寸比与显示器的屏幕尺寸比之间并不等同匹配，因此，在手机上显示的画面投放到显示器上后也只能显示与手机同比例的放大尺寸，使得显示器左右两边会出现黑色边框，这就影响了使用者的视觉感受，如何将显示器上出现的黑色边框进行消除，从而提高视觉感受，成为一个难以解决的技术难题。
发明内容
本发明要解决的技术问题是提供一种能够将投屏时显示器的黑色边框有效消除，从而提高视觉感受的投屏画面显示及投屏画面旋转方法。
为了解决上述技术问题，本发明的投屏画面显示方法，包括以下步骤：
A、利用显示器的主控芯片接收手持终端画面信号参数；
B、主控芯片通过侦测从手持终端上所输入的显示信号的强度来判断黑边及计算显示画面的开始位置；
C、通过计算得出显示画面的宽度，与此同时，通过主控芯片的信号侦测直接得到显示信号的高度；
D、利用控制单元提供的库函数计算将画面放大到和手持终端等比例的全屏输出。
所述步骤B中，在主控芯片侦测显示信号强度的同时，侦测信号的分辨率大小。
所述手机通过USB TYPE-C与显示器的主控芯片进行信息传输。
所述步骤D中，等比例输出时以屏幕的其中一条边缘作为基准进行画面输出。
所述手持终端为手机或平板电脑。
一种投屏画面旋转方法，包括以下步骤：
A、根据获得的面信号通过采用设定参数或重力感应的方式设定旋转角度标志位；
B、经过帧率转换控制后经过FIFO画面缩放确定屏幕纵向放大比和横向放大比，然后进行图像缩放；
C、计算屏幕显示的纵向起始位置和横向起始位置，最后进行旋转后的全屏显示。
当旋转90或270度时，根据获得的面信号通过采用设定参数的方式设定旋转90或270度标志位；在经过帧率转换控制步骤之后和经过FIFO画面缩放步骤之前，需要计算画面信号的纵横比以及使FIFO宽度等于视频的高度，然后确定屏幕的纵横比以及进行计算FIFO高度以及纵向起始位置。
当旋转180度时，根据获得的面信号通过采用设定参数的方式设定旋转180度标志位。
所述重力感应方式是采用手持终端设置的侦测装置进行获取感应信号。
采用上述的方法后，手机传送的画面是通过USB TYPE-C,在板卡接收部分是DP信号，板卡的主控芯片，可以侦测显示信号的强度和信号的分辨率大小，这样通过数学计算可以判断黑边及画面开始的位置，及无黑边画面的分辨率，另外，以其中一条侧边作为基准，有效防止了画面显示比例失真，保证了画面显示的效果，再者，根据获得的面信号通过采用设定参数或重力感应的方式设定旋转角度标志位，主控芯片得到画面旋转经过相应处理后，可把画面旋转对应的角度，再通过显示屏显示旋转后的画面，由此在显示器上变成“全屏无黑边”或“小黑边”画面，从而提高了视觉感受。
附图说明
图1为本发明投屏画面旋转方法的流程图。
具体实施方式
下面结合附图和具体实施方式，对本发明的投屏画面显示及投屏画面旋转方法作进一步详细说明，其中，本实施例中所提及的画面既可以为图像画面，也可以为视频画面，本实施例不对其做具体限定。
实施例一：
本发明的投屏画面显示方法，包括以下步骤：
A、利用显示器的主控芯片接收手持终端画面信号参数；
B、主控芯片通过侦测从手持终端上所输入的显示信号的强度(R.G,B，正常的信号强度是0～255，黑色画面信号强度数值很小，一般黑色数据信号都不会超过16，通常都是小于3)，这样通过数学计算(具体是指通过累加的计算方式进行计算，在相同位置，连续3～5行的点的累加值都是大于3，即可认为找到了画面开始的位置)来判断黑边及计算显示画面的开始位置；与此同时，主控芯片还侦测信号的分辨率大小(如：1080(水平像素)x1920(垂直像素))，同时通过数学计算来获得无黑边画面的分辨率(如：720x1280)，信号的分辨率可以直接读取主控芯片的寄存器得到，这里的分辨率是计算得到的“画面的宽度x信号的高度”的分辨率，具体地说从左向右方向：侦测到右侧黑边的位置-侦测到左侧画面的位置，这个是画面的宽度，将要被放大画面的分辨率的宽度,我们用H来表示，画面的高度如上所述可以直接读取主控的寄存器，用V表示，HxV就是要放大的分辨率；
C、通过计算(该计算方式与步骤B类似，其区别在于在连续3～5行的点的累加值都是小于3，即可认为找到了画面结束的位置，用结束的位置减去开始的位置，等于画面的宽度)得出显示画面的宽度(水平信号)，与此同时，通过主控芯片(主控芯片的硬件寄存器可以直接读取输入信号画面有多少行，这个就是画面高度)的信号侦测直接得到显示信号的高度(垂直信号)；
其中，关于其匹配的显示屏的分辨率是固定的(根据不同的显示屏，这个是按照显示屏的规格设定的)，其画面比例也是固定的(如，16：9，4：3)；
D、利用控制单元提供的函数计算将画面放大到和手持终端等比例的全屏输出，具体计算方式为：假设判断输入信号的宽度是720个像素，高度是1280行，显示器屏的分辨率是1920x1080,其计算方式如下：画面宽度放大系数是：1080/720；画面高度的放大系数是1920/1280；比较这两个数取其中较小的数据来当作放大系数，就可以把画面放大了，输出的画面不足的位置(高或者宽度)用黑色填满即可，也就是说只需要将正常到的显示信号(无黑边的画面)，放大到屏的显示分辨率即可，等比例输出时以屏幕的其中一条边缘作为基准进行画面输出，即：只要上下或左右，有一条边先到显示屏的边缘，就可以了，这样可以防止画面显示比例失真。
进一步地，所说的主控芯片为板卡的主控芯片，在板卡接收部分是DP信号，所说的手持终端传送的画面是通过USB TYPE-C与显示器的主控芯片进行信息传输，所说的手持终端为手机或平板电脑，但并不局限于手机或平板电脑。
需要说明的是，在全屏显示中，有可能会出现“小黑边”画面，这个和手机信号的画面比例及屏(Panel)的画面比例有关，但是完全消除了传统的大黑边画面。
实施例二：
如图所示，本实施例的投屏画面旋转方法，包括以下步骤：
A、根据获得的画面信号通过采用设定参数的方式设定旋转90或270度标志位；
B、经过帧率转换控制后计算画面信号的纵横比以及使FIFO宽度等于视频的高度(计算方式参考实施例一)，
C、确定屏幕的纵横比以及进行计算FIFO高度以及纵向起始位置；
D、经过FIFO画面缩放确定屏幕纵向放大比和横向放大比，然后进行图像缩放；
E、计算屏幕显示的纵向起始位置和横向起始位置(显示主控芯片可以把画面缓存下来)，最后再进行旋转后的全屏显示。
实施例三：
如图所示，本实施例的投屏画面旋转方法，包括以下步骤：
A、根据获得的画面信号通过采用重力感应的方式设定旋转180度标志位，其中，重力感应方式是采用手持终端设置的侦测装置进行获取感应信号；
B、经过帧率转换控制后经过FIFO画面缩放确定屏幕纵向放大比和横向放大比，然后进行图像缩放；
C、计算屏幕显示的纵向起始位置和横向起始位置，得到画面旋转后，主控芯片把画面旋转对应的角度，再进行旋转后全屏显示。
另外，需要说明的是，采用设定参数的方式同样可以实现180度旋转，采用重力感应的方式也同样可以实现90或270度旋转，在实施例二和实施例三中，当手持终端本身具有黑边时，对应显示屏也同样具有相同比例的黑边，即手持终端和显示屏等比例显示。

Claims (9)

1.一种投屏画面显示方法，包括以下步骤：
A、利用显示器的主控芯片接收手持终端画面信号参数；
B、主控芯片通过侦测从手持终端上所输入的显示信号的强度来判断黑边及计算显示画面的开始位置；
C、通过计算得出显示画面的宽度，与此同时，通过主控芯片的信号侦测直接得到显示信号的高度；
D、利用控制单元提供的函数计算将画面放大到和手持终端等比例或全屏输出。
2.按照权利要求1所述的投屏画面全屏显示方法，其特征在于：所述步骤B中，在主控芯片侦测显示信号强度的同时，侦测信号的分辨率大小。
3.按照权利要求1或2所述的投屏画面全屏显示方法，其特征在于：所述手机通过USBTYPE-C与显示器的主控芯片进行信息传输。
4.按照权利要求3所述的投屏画面全屏显示方法，其特征在于：所述步骤D中，等比例输出时以屏幕的其中一条边缘作为基准进行画面输出。
5.按照权利要求1、2或4所述的投屏画面全屏显示方法，其特征在于：手持终端为手机或平板电脑。
6.一种投屏画面旋转方法，其特征在于，包括以下步骤：
A、根据获得的画面信号通过采用设定参数或重力感应的方式设定旋转角度标志位；
B、经过帧率转换控制后经过FIFO画面缩放确定屏幕纵向放大比和横向放大比，然后进行图像缩放；
C、计算屏幕显示的纵向起始位置和横向起始位置，最后进行旋转后的全屏显示。
7.按照权利要求6所述的投屏画面旋转方法，其特征在于，当旋转90或270度时，根据获得的面信号通过采用设定参数的方式设定旋转90或270度标志位；在经过帧率转换控制步骤之后和经过FIFO画面缩放步骤之前，需要计算画面信号的纵横比以及使FIFO宽度等于视频的高度，然后确定屏幕的纵横比以及进行计算FIFO高度以及纵向起始位置。
8.按照权利要求6所述的投屏画面旋转方法，其特征在于：当旋转180度时，根据获得的面信号通过采用设定参数的方式设定旋转180度标志位。
9.按照权利要求6所述的投屏画面旋转方法，其特征在于：所述重力感应方式是采用手持终端设置的侦测装置进行获取感应信号。
CN201910673052.8A 2019-07-24 2019-07-24 一种投屏画面显示及投屏画面旋转方法 Pending CN110267073A (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201910673052.8A CN110267073A (zh) 2019-07-24 2019-07-24 一种投屏画面显示及投屏画面旋转方法
KR1020190133910A KR20210012863A (ko) 2019-07-24 2019-10-25 스크린 투영 화면의 디스플레이 방법 및 스크린 투영 화면의 회전 방법
JP2019202957A JP2021021925A (ja) 2019-07-24 2019-11-08 ミラーリング画面表示方法及びミラーリング画面回転方法
US16/695,263 US11335297B2 (en) 2019-07-24 2019-11-26 Method for displaying projection picture and method for rotating projection picture
EP19212801.5A EP3770747A1 (en) 2019-07-24 2019-12-02 Method for displaying a picture and method for rotating a displayed picture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910673052.8A CN110267073A (zh) 2019-07-24 2019-07-24 一种投屏画面显示及投屏画面旋转方法

Publications (1)

Publication Number Publication Date
CN110267073A true CN110267073A (zh) 2019-09-20

Family

ID=67928095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910673052.8A Pending CN110267073A (zh) 2019-07-24 2019-07-24 一种投屏画面显示及投屏画面旋转方法

Country Status (5)

Country Link
US (1) US11335297B2 (zh)
EP (1) EP3770747A1 (zh)
JP (1) JP2021021925A (zh)
KR (1) KR20210012863A (zh)
CN (1) CN110267073A (zh)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110989911A (zh) * 2019-12-19 2020-04-10 深圳市颍创科技有限公司 一种在显示中利用外设的鼠标进行切换的方法
CN111081156A (zh) * 2019-12-11 2020-04-28 中国电子科技集团公司第三十八研究所 一种智慧城市综合数据看板平台
CN111708503A (zh) * 2020-06-05 2020-09-25 努比亚技术有限公司 一种投屏控制方法、设备及计算机可读存储介质
CN112114765A (zh) * 2020-09-27 2020-12-22 北京小米移动软件有限公司 投屏方法、装置及存储介质
CN112565839A (zh) * 2020-11-23 2021-03-26 青岛海信传媒网络技术有限公司 投屏图像的显示方法及显示设备
CN112616078A (zh) * 2020-12-10 2021-04-06 维沃移动通信有限公司 投屏处理方法、装置、电子设备和存储介质
CN112612433A (zh) * 2020-12-09 2021-04-06 深圳乐播科技有限公司 一种竖屏视频的投屏方法、设备及系统
CN112667184A (zh) * 2021-01-28 2021-04-16 青岛海信传媒网络技术有限公司 一种显示设备
CN112882781A (zh) * 2021-02-05 2021-06-01 瑞芯微电子股份有限公司 一种智能边框检测和同屏的方法和存储设备
CN112969083A (zh) * 2021-02-20 2021-06-15 深圳市颍创科技有限公司 Pip画面中主画面和子画面同时竖屏显示的方法及系统
CN113362782A (zh) * 2020-03-03 2021-09-07 瑞昱半导体股份有限公司 显示装置及影像显示方法
CN113556590A (zh) * 2020-04-24 2021-10-26 海信视像科技股份有限公司 一种投屏视频流有效分辨率检测方法及显示设备
WO2021212470A1 (zh) * 2020-04-24 2021-10-28 青岛海信传媒网络技术有限公司 一种显示设备及投屏画面显示方法
CN113905268A (zh) * 2021-09-28 2022-01-07 四川长虹电器股份有限公司 移动终端投屏显示的去黑边方法
CN114363678A (zh) * 2020-09-29 2022-04-15 华为技术有限公司 一种投屏方法及设备
CN114430492A (zh) * 2020-10-29 2022-05-03 海信视像科技股份有限公司 显示设备、移动终端及图片同步缩放方法
US11662971B2 (en) 2020-04-24 2023-05-30 Hisense Visual Technology Co., Ltd. Display apparatus and cast method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114816294A (zh) 2020-09-02 2022-07-29 华为技术有限公司 一种显示方法及设备
CN114578993A (zh) * 2022-03-09 2022-06-03 杭州雾联科技有限公司 一种云设备分辨率自适应方法、装置及介质

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10155073A (ja) * 1996-11-22 1998-06-09 Canon Inc 画像形成装置及び画像形成方法並びに複写装置及び複写方法
JP4767208B2 (ja) * 2007-03-30 2011-09-07 アイシン精機株式会社 顔部品位置検出装置、方法及びプログラム
CN102547179A (zh) * 2011-12-29 2012-07-04 惠州Tcl移动通信有限公司 一种手持设备及与电视同步显示的方法
CN103902195A (zh) * 2012-12-28 2014-07-02 鸿富锦精密工业(武汉)有限公司 显示屏幕自动调节系统及方法
CN205789050U (zh) * 2016-07-05 2016-12-07 田江华 一种将手机平板投屏到竖屏广告机的系统
CN107105184A (zh) * 2017-04-01 2017-08-29 深圳市蓝莓派科技有限公司 一种移动终端在竖屏广告机上的同屏投射方法
CN108279894A (zh) * 2016-12-30 2018-07-13 乐视汽车（北京）有限公司 投屏分辨率转换方法及转换装置
CN108446085A (zh) * 2018-03-14 2018-08-24 维沃移动通信有限公司 一种投屏显示方法及移动终端
CN109218731A (zh) * 2017-06-30 2019-01-15 腾讯科技（深圳）有限公司 移动设备的投屏方法、装置及系统

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6400852B1 (en) * 1998-12-23 2002-06-04 Luxsonor Semiconductors, Inc. Arbitrary zoom “on -the -fly”
JP2005331674A (ja) * 2004-05-19 2005-12-02 Sony Corp 画像表示装置
US8380008B2 (en) * 2008-05-02 2013-02-19 Apple Inc. Automatic image cropping
JP2010014979A (ja) * 2008-07-03 2010-01-21 Sharp Corp 表示装置、映像出力装置及び映像表示システム
WO2010057171A1 (en) * 2008-11-17 2010-05-20 Dolby Laboratories Licensing Corporation Media fingerprints that reliably correspond to media content with projection of moment invariants
JP2011128409A (ja) * 2009-12-18 2011-06-30 Funai Electric Co Ltd 液晶表示システム
US8514331B2 (en) * 2010-06-08 2013-08-20 Stmicroelectronics, Inc. De-rotation adaptor and method for enabling interface of handheld multi-media device with external display
CN102377960B (zh) * 2010-08-24 2014-11-05 腾讯科技（深圳）有限公司 视频画面显示方法及装置
JP2014232228A (ja) * 2013-05-29 2014-12-11 ソニー株式会社 情報処理装置、および情報処理システム
JP5802249B2 (ja) * 2013-09-30 2015-10-28 シャープ株式会社 表示装置、ソース機器、及び表示システム
KR102442527B1 (ko) * 2016-02-26 2022-09-13 엘지전자 주식회사 무선 디바이스
JP6840473B2 (ja) * 2016-06-24 2021-03-10 株式会社東芝 アダプタ装置
KR20190055802A (ko) * 2016-10-14 2019-05-23 삼성전자주식회사 컨텐츠를 전송하는 방법 및 장치
KR20200026534A (ko) * 2018-09-03 2020-03-11 삼성전자주식회사 전력 정보에 기반하여 외부 전자 장치를 식별하는 방법, 이를 지원하는 전자 장치 및 저장 매체

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10155073A (ja) * 1996-11-22 1998-06-09 Canon Inc 画像形成装置及び画像形成方法並びに複写装置及び複写方法
JP4767208B2 (ja) * 2007-03-30 2011-09-07 アイシン精機株式会社 顔部品位置検出装置、方法及びプログラム
CN102547179A (zh) * 2011-12-29 2012-07-04 惠州Tcl移动通信有限公司 一种手持设备及与电视同步显示的方法
CN103902195A (zh) * 2012-12-28 2014-07-02 鸿富锦精密工业(武汉)有限公司 显示屏幕自动调节系统及方法
CN205789050U (zh) * 2016-07-05 2016-12-07 田江华 一种将手机平板投屏到竖屏广告机的系统
CN108279894A (zh) * 2016-12-30 2018-07-13 乐视汽车（北京）有限公司 投屏分辨率转换方法及转换装置
CN107105184A (zh) * 2017-04-01 2017-08-29 深圳市蓝莓派科技有限公司 一种移动终端在竖屏广告机上的同屏投射方法
CN109218731A (zh) * 2017-06-30 2019-01-15 腾讯科技（深圳）有限公司 移动设备的投屏方法、装置及系统
CN108446085A (zh) * 2018-03-14 2018-08-24 维沃移动通信有限公司 一种投屏显示方法及移动终端

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111081156B (zh) * 2019-12-11 2022-07-12 中国电子科技集团公司第三十八研究所 一种智慧城市综合数据看板平台
CN111081156A (zh) * 2019-12-11 2020-04-28 中国电子科技集团公司第三十八研究所 一种智慧城市综合数据看板平台
CN110989911A (zh) * 2019-12-19 2020-04-10 深圳市颍创科技有限公司 一种在显示中利用外设的鼠标进行切换的方法
CN110989911B (zh) * 2019-12-19 2023-10-13 安徽颍创科技有限公司 一种在显示中利用外设的鼠标进行切换的方法
CN113362782A (zh) * 2020-03-03 2021-09-07 瑞昱半导体股份有限公司 显示装置及影像显示方法
US11662971B2 (en) 2020-04-24 2023-05-30 Hisense Visual Technology Co., Ltd. Display apparatus and cast method
CN113556590B (zh) * 2020-04-24 2022-11-11 海信视像科技股份有限公司 一种投屏视频流有效分辨率检测方法及显示设备
CN113556590A (zh) * 2020-04-24 2021-10-26 海信视像科技股份有限公司 一种投屏视频流有效分辨率检测方法及显示设备
WO2021212470A1 (zh) * 2020-04-24 2021-10-28 青岛海信传媒网络技术有限公司 一种显示设备及投屏画面显示方法
CN111708503B (zh) * 2020-06-05 2023-06-27 努比亚技术有限公司 一种投屏控制方法、设备及计算机可读存储介质
CN111708503A (zh) * 2020-06-05 2020-09-25 努比亚技术有限公司 一种投屏控制方法、设备及计算机可读存储介质
CN112114765A (zh) * 2020-09-27 2020-12-22 北京小米移动软件有限公司 投屏方法、装置及存储介质
CN114363678A (zh) * 2020-09-29 2022-04-15 华为技术有限公司 一种投屏方法及设备
CN114430492A (zh) * 2020-10-29 2022-05-03 海信视像科技股份有限公司 显示设备、移动终端及图片同步缩放方法
CN114430492B (zh) * 2020-10-29 2023-10-13 海信视像科技股份有限公司 显示设备、移动终端及图片同步缩放方法
CN112565839A (zh) * 2020-11-23 2021-03-26 青岛海信传媒网络技术有限公司 投屏图像的显示方法及显示设备
CN112612433A (zh) * 2020-12-09 2021-04-06 深圳乐播科技有限公司 一种竖屏视频的投屏方法、设备及系统
CN112612433B (zh) * 2020-12-09 2023-12-01 深圳乐播科技有限公司 一种竖屏视频的投屏方法、设备及系统
CN112616078A (zh) * 2020-12-10 2021-04-06 维沃移动通信有限公司 投屏处理方法、装置、电子设备和存储介质
CN112667184A (zh) * 2021-01-28 2021-04-16 青岛海信传媒网络技术有限公司 一种显示设备
CN112882781A (zh) * 2021-02-05 2021-06-01 瑞芯微电子股份有限公司 一种智能边框检测和同屏的方法和存储设备
CN112969083A (zh) * 2021-02-20 2021-06-15 深圳市颍创科技有限公司 Pip画面中主画面和子画面同时竖屏显示的方法及系统
CN113905268A (zh) * 2021-09-28 2022-01-07 四川长虹电器股份有限公司 移动终端投屏显示的去黑边方法

Also Published As

Publication number Publication date
US11335297B2 (en) 2022-05-17
JP2021021925A (ja) 2021-02-18
US20210027742A1 (en) 2021-01-28
KR20210012863A (ko) 2021-02-03
EP3770747A1 (en) 2021-01-27

Similar Documents

Publication Publication Date Title
CN110267073A (zh) 一种投屏画面显示及投屏画面旋转方法
US9189082B2 (en) Enhanced handheld screen-sensing pointer
US9177365B2 (en) Method and apparatus for detecting and removing false contour, method and apparatus for verifying whether pixel in included in contour, and method and apparatus for calculating simplicity
CN107230192A (zh) 图像处理方法、装置、计算机可读存储介质和移动终端
CN104469178B (zh) 一种图像显示方法及电子设备
WO2011074794A3 (en) Image display apparatus and method for operating the image display apparatus
CN104919490B (zh) 用于图像处理的结构描述符
JP2004054210A5 (zh)
EP1833036A3 (en) Image display apparatus and method, program therefor, and recording medium having recorded thereon the same
CN111643888A (zh) 游戏装置与辨识游戏装置的方法
CN107274364A (zh) 一种图像增强方法及装置
CN103826082B (zh) 一种视频处理方法及装置
CN108055486A (zh) 一种亮度校正方法及装置
CN114202519A (zh) 视频闪烁确定方法、装置、设备及存储介质
EP1437686A3 (en) Object information processing apparatus, image processing system, game apparatus and image processing method
WO2003010747A1 (fr) Appareil de traitement non lineaire, appareil d'affichage d'images
US20070018999A1 (en) Auto-centering of main image
CN105430237B (zh) 一种帧缺失图像的处理方法及系统
WO2001095617A3 (en) Auxiliary information processing system with a bitmapped on-screen display using limited computing resources
JPH09101236A (ja) 表示欠陥検査装置および表示欠陥検査方法
CN110505512A (zh) 全屏播放方法、终端设备及计算机可读存储介质
CN103079029A (zh) 一种基于宏块边缘信息的数字电视马赛克识别方法
CN108076365B (zh) 人体姿势识别装置
EP2169622A1 (en) Apparatus and method of image analysis
CN112053372A (zh) 一种屏幕显示类型的识别方法以及相关装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190920

RJ01 Rejection of invention patent application after publication