CN108076303A - A kind of video image display method and device - Google Patents
A kind of video image display method and device Download PDFInfo
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- CN108076303A CN108076303A CN201610998005.7A CN201610998005A CN108076303A CN 108076303 A CN108076303 A CN 108076303A CN 201610998005 A CN201610998005 A CN 201610998005A CN 108076303 A CN108076303 A CN 108076303A
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/60—Memory management
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- 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
- G06T3/60—Rotation of whole images or parts thereof
- G06T3/606—Rotation of whole images or parts thereof by memory addressing or mapping
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Abstract
The invention discloses a kind of video image display method and devices.This method includes：Call camera acquisition video image；The video image of mirror image is shown in local terminal；The video conference terminal that the video image of erect image is sent to positioned at distal end is shown.The present invention is in video conference application scene, mirror image is shown in local terminal, distal displayed positive print picture, meet the demand that this end subscriber watches itself mirror image, also the demand of the positive print picture of remote subscriber viewing the other user is met, therefore the present invention has catered to the custom of all users, and user experience effect is good.
Description
Technical field
The present invention relates to video conferencing technology field, more particularly to a kind of video image display method and device.
Background technology
In daily life, caused by habits and customs, people get used to seeing the mirror surface image of oneself and other people
Front image.Such as：Smart mobile phone considers the usage experience of user, the image of the preposition self-timer camera acquisition of smart mobile phone
It is exactly mirror image, and the image of the rear camera at smart mobile phone back side acquisition is positive print picture.
But in video conference application scene, only there are one camera, the figures of camera acquisition for video conference terminal
As being either mirror image or being positive print picture, and though the image of video conference terminal camera acquisition be mirror image or
Positive print picture is required for showing image in this video conference terminal, and the image is sent to the video positioned at distal end
Conference terminal, so that this end subscriber and remote subscriber can see the image.If camera acquisition is mirror image, only
Meet the viewing custom of this end subscriber, and do not meet the viewing custom of remote subscriber, opposite, if camera acquisition is just
As image, then only meet the viewing custom of remote subscriber, and do not meet the viewing custom of local terminal user.
So in video conference application scene, existing video image display mode cannot cater to the sight of all users
See custom, user experience effect is poor.
The content of the invention
The present invention provides a kind of video image display method and device, existing to solve in video conference application scene
The problem of some video image display modes cannot cater to the viewing custom of all users, and user experience effect is poor.
In order to solve the above-mentioned technical problem, the present invention solves by the following technical programs：
The present invention provides a kind of video image display method, including：Call camera acquisition video image；By mirror image
The video image is shown in local terminal；By the video image of erect image be sent to video conference terminal positioned at distal end into
Row display.
Wherein, the calling camera acquisition video image, including：Call the video image of camera acquisition erect image；
The video image by mirror image further includes before local terminal is shown：The institute for the erect image that the camera is gathered
It states video image and carries out overturning processing, obtain the video image of mirror image.
Wherein, the calling camera acquisition video image, including：Call the video image of camera acquisition mirror image；
It is described the video image of erect image is sent to shown positioned at the video conference terminal of distal end before, further include：By institute
The video image for stating the mirror image of camera acquisition carries out overturning processing, obtains the video image of erect image.
Wherein, the video image is subjected to overturning processing, including：According to the YUV matrixes of the video image, to described
Video image carries out inverted sequence line by line and reads, and makes the video image of overturning before processing and overturning treated video image or so phase
Instead.
Wherein, before the calling camera acquisition video image, further include：The acquisition mould of the camera is set
Formula；Wherein, the drainage pattern is erect image pattern or mirror image pattern.
The present invention also provides a kind of video image display apparatus, including：Calling module, for camera acquisition to be called to regard
Frequency image；Display module, for the video image of mirror image to be shown in local terminal；Sending module, for by erect image
The video conference terminal that the video image is sent to positioned at distal end is shown.
Wherein, described device further includes processing module；The calling module, for calling the video of camera acquisition erect image
Image；The processing module, in the video image by mirror image before local terminal is shown, by the camera shooting
The video image of the erect image of head acquisition carries out overturning processing, obtains the video image of mirror image.
Wherein, the calling module, for calling the video image of camera acquisition mirror image；The processing module, is used for
It is described the video image of erect image is sent to shown positioned at the video conference terminal of distal end before, by the camera shooting
The video image of the mirror image of head acquisition carries out overturning processing, obtains the video image of erect image.
Wherein, the processing module is further used for the YUV matrixes according to the video image, to the video image
It carries out inverted sequence line by line to read, makes the video image of overturning before processing and overturning treated video image or so opposite.
Wherein, described device further includes setup module；The setup module, in the calling camera acquisition video
Before image, the drainage pattern of the camera is set；Wherein, the drainage pattern is erect image pattern or mirror image pattern.
The present invention has the beneficial effect that：
The present invention shows mirror image in video conference application scene, in local terminal, and distal displayed positive print picture is met
This end subscriber watches the demand of itself mirror image, also meets the demand of the positive print picture of remote subscriber viewing the other user,
Therefore the present invention has catered to the custom of all users, and user experience effect is good.
Description of the drawings
Fig. 1 is the flow chart of the display methods of video image according to a first embodiment of the present invention；
Fig. 2 is the particular flow sheet of video image display method according to a second embodiment of the present invention；
Fig. 3 is the schematic diagram of video image display method according to a second embodiment of the present invention；
Fig. 4 is the particular flow sheet of video image display method according to a third embodiment of the present invention；
Fig. 5 is the schematic diagram of video image according to a fourth embodiment of the present invention；
Fig. 6 is the overturning processing schematic diagram of video image according to a fourth embodiment of the present invention；
Fig. 7 is the structure chart of video image display apparatus according to a fifth embodiment of the present invention；
Fig. 8 is the schematic diagram of video image display apparatus according to a sixth embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing and embodiment, the present invention will be described in further detail.It is it should be appreciated that described herein
Specific embodiment be only used to explain the present invention, limit the present invention.
Embodiment one
The present embodiment provides a kind of display methods of video image.Fig. 1 is video figure according to a first embodiment of the present invention
The flow chart of the display methods of picture.The executive agent of the present embodiment is video conference terminal.
Step S110 calls camera acquisition video image.
Video image is mirror image or positive print picture.
Mirror image is plane mirror imaging, and the actual environment that mirror image and the mirror image gather is heterochiral.
Erect image is normal imaging, and positive print picture is that left and right is consistent with the actual environment of the erect image Image Acquisition.
When opening video conference, video conference terminal calls the video image of camera acquisition current environment.Further
Ground calls the camera acquisition mirror image of current environment or positive print picture.
When calling camera acquisition video image, if input signal interface is analog input signal interface, need
Analog-to-digital conversion is carried out to the video image of acquisition, the video image of analog signal is converted to the video image of digital signal；Such as
Fruit input signal interface is digital input signals interface, then need not carry out analog-to-digital conversion to video image.Such as：Numeral input
Signaling interface is HDMI (High Definition Multimedia Interface, high-definition multimedia interface).
Step S120 shows the video image of mirror image in local terminal.
The video image of mirror image refers to mirror image.
If video image is mirror image, which is shown in local terminal.The local terminal refers to call camera
This video conference terminal.
If video image is positive print picture, before local terminal is shown, first camera is adopted by video image
The positive print picture of collection carries out overturning processing, obtains the positive print as corresponding mirror image, then by the mirror image local terminal into
Row display.
Overturning processing is exactly that mirror image switch (left and right overturning) is carried out to video image.It can be obtained just after mirror image overturning
As image, mirror image can be obtained after erect image Image Reversal.Further, it can be pair that overturning processing is carried out to video image
Video image carries out inverted sequence line by line and reads, and makes the video image of overturning before processing and overturning treated video image or so phase
Instead.
Step S130 shows the video conference terminal that the video image of erect image is sent to positioned at distal end.
The video image of erect image refers to positive print picture.
If video image is mirror image, before the video image is sent, first by the mirror image of camera acquisition
As carrying out overturning processing, the corresponding positive print picture of the mirror image is obtained, then the positive print picture is sent to the video council of distal end
View terminal is shown.The video conference terminal of distal end refers to the video council that video conference is carried out with the video conference terminal of local terminal
Discuss terminal.
If video image is positive print picture, the video conference terminal which is sent to distal end is shown
Show.
The present embodiment shows mirror image in video conference application scene, in local terminal, and distal displayed positive print picture meets
This end subscriber watches the demand of itself mirror image, also meets the need of the positive print picture of remote subscriber viewing the other user
It asks, therefore the present embodiment has catered to the custom of all users, user experience effect is good.
Embodiment two
The present embodiment provides a more specific video image display methods.With reference to Fig. 2 and Fig. 3 to the present embodiment
It illustrates.Fig. 2 is the particular flow sheet of video image display method according to a second embodiment of the present invention.Fig. 3 is according to this
The schematic diagram of the video image display method of invention second embodiment.
Step S210, setting camera are erect image pattern, call camera acquisition video flowing.
Under erect image pattern, the video image of camera acquisition is positive print picture.
Camera constantly gathers positive print picture, forms video flowing.Further, the video image of camera acquisition is simulation
Signal.
Video flowing is divided into two-way by step S220.
Two-path video stream is identical, wherein all the way for being sent to the video conference terminal positioned at distal end, so that this is located at far
The video conference terminal at end carries out video and shows, is in addition shown all the way for local terminal.
Camera acquisition video image forms video flowing all the way, and by this, video source is divided into two-way and handles respectively all the way, this
Sample both ensure that local terminal video preview, in turn ensure the experience property of remote subscriber.
Step S230, to wherein video flowing carries out coded treatment all the way, and be sent to the video conference terminal of distal end, by remote
The video conference terminal at end is shown according to the road video flowing.
It is exactly that every frame video image in video flowing is encoded to carry out coded treatment to video flowing, will be per frame video figure
As being encoded to the form for being suitble to transmit in the channel.
Before being encoded to video flowing, also analog-to-digital conversion is carried out to video flowing, the video of analog signal is circulated
It is changed to the video flowing of digital signal.
When video flowing is sent, video flowing can be packaged into RTP (Real-time Transport Protocol,
Real-time transport protocol) it wraps, the video conference terminal of distal end is then sent to by the network interface of the video conference terminal of local terminal, so as to
In the video conference of distal end show.
Step S240 carries out every frame positive print picture in addition all the way in video flowing overturning processing and shows.
Overturning processing is exactly that positive print picture is carried out mirror image switch, and then obtains the video image of mirror image.
The video conference terminal of local terminal can include display device or connection display device, and the video image of mirror image is defeated
Go out and shown to display device.Further, the VP for the video conference terminal for the video image of mirror image being passed through into local terminal
(Video Port, video port) is exported to display device.
Embodiment three
The present embodiment provides another more specific video image display methods.Fig. 4 is the 3rd implementation according to the present invention
The particular flow sheet of the video image display method of example.
Step S410, setting camera are mirror image pattern, call camera acquisition video flowing.
Under mirror image pattern, the video image of camera acquisition is mirror image.
Camera constantly gathers mirror image, forms video flowing.Further, the video image of camera acquisition is simulation
Signal.
Video flowing is divided into two-way by step S420.
Step S430, to wherein video flowing carries out display output all the way.
The video conference terminal of local terminal can include display device or connection display device, and the video image of mirror image is defeated
Go out and shown to display device.
Step S440 in addition video flowing first carries out overturning processing all the way, then carries out coded treatment, is then sent to and is located at
The video conference terminal of distal end is shown by the video conference terminal of distal end according to the road video.
Before video flowing is sent, it is exactly that every frame video image in video flowing is carried out that coded treatment is carried out to video flowing
Every frame video image is encoded to the form for being suitble to transmit in the channel by coding.
Before video flowing is sent, after being encoded to video flowing, also analog-to-digital conversion is carried out to video flowing, by mould
The video flowing for intending signal is converted to the video flowing of digital signal.
Example IV
The mode of the present invention that overturning processing is carried out to video image is described further below.
The overturning processing of the present embodiment is using image level mirror image switch algorithm.
Specifically, in the present embodiment, using YUV (optimization colour-video signal) matrix, video image is carried out line by line
Inverted sequence is read, and exchanges the data at both ends line by line.Wherein, Y represents brightness in YUV, and U represents color, and V represents saturation degree；In other words,
Y represents gray scale, and UV represents colourity.
According to the resolution ratio of video image, the width of video image is W, is highly H.In the YUV squares of the W*H of video image
In battle array, inverted sequence reads each row of data, formation and the heterochiral flipped image of the video image, that is to say, that is reading YUV squares
During the wherein data line of battle array, the last one data of the row are first read, using the last one data as right in flipped image
First data that should be gone, then the penultimate data of the row are read, using the penultimate data as in flipped image
Second data of corresponding row, and so on, first data until reading the row, using first data as flipchart
Until the last one data that row is corresponded to as in, the overturning changed one's profession processing is completed.
Such as：Exemplified by gathering YUV420, the width W for the video image that resolution ratio is 8*4 is 8, and height H is 4, due to regarding
The type of frequency image is YUV420, so the broadband of Y-signal matrix is 8, it is highly 4, the width of U signal and V signal matrix is all
All it is 2 (H/2=2) for 4 (W/2=4), height, the value of tri- signals of Y, U and V in the YUV matrixes of video image stores respectively
In memory, the first address of tri- signal matrix of Y, U and V is represented respectively with pY, pU, pV, as shown in figure 5, Y1~Y32, U1~
U8, V1~V8 are storage address, and the first address pY (Y1) of Y-signal matrix is the first address of video image, that is to say YUV tri-
The matrix first address of signal.The first address pU of the U signal matrix and first address pV of V signal matrix can using the offset of pY come
It represents..
When carrying out overturning processing, first, according to the resolution ratio of the acquisition mode of video image and video image, find
The matrix first address of tri- signals of YUV, wherein：
PY=ptr；
PU=pY+ (W*H)；
PV=pU+ ((W*H)/4).
Then, flip horizontal is carried out to tri- signal matrix of pY, pU, pV respectively, since acquisition mode is YUV420, so
PY matrixes are W width, H height, and pU, pV matrix are W/2 width, H/2 height.
In order to save the time, the multirow data of Y-signal matrix can be carried out at the same time with overturning processing in YUV matrixes, it is right
U signal and V signal matrix carry out overturning processing respectively.As shown in fig. 6, be the flip horizontal process of Y-signal matrix, matrix both sides
Data are exchanged, and so on, the flip horizontal process of U signal and V signal matrix is referred to the process shown in Fig. 6, by matrix
Both sides data are exchanged.Finally complete the mirror image switch of video image.
Embodiment five
The present embodiment provides a kind of video image display apparatus.Fig. 7 is video image according to a fifth embodiment of the present invention
The structure chart of display device.The device is arranged on video conference terminal side.
Calling module 710, for camera to be called to gather video image.
Display module 720, for the video image of mirror image to be shown in local terminal.
Sending module 730, for the video image of erect image to be sent to the video conference terminal progress positioned at distal end
Display.
Described device further includes processing module (not shown).
The calling module 710, for calling the video image of camera acquisition erect image；The processing module, for
The video image by mirror image is before local terminal is shown, the video figure for the erect image that the camera is gathered
As carrying out overturning processing, the video image of mirror image is obtained.
The calling module 710, for calling the video image of camera acquisition mirror image；The processing module, for
It is described the video image of erect image is sent to shown positioned at the video conference terminal of distal end before, by the camera
The video image of the mirror image of acquisition carries out overturning processing, obtains the video image of erect image.
The processing module is further used for using YUV matrixes, and inverted sequence line by line is carried out to the video image and is read, is made
Video image and overturning treated the video image or so for overturning before processing are opposite.
Described device further includes setup module (not shown).The setup module, in the calling camera
Before gathering video image, the drainage pattern of the camera is set；Wherein, the drainage pattern is erect image pattern or mirror image mould
Formula.
The function of device described in the present embodiment is described in the embodiment of the method shown in Fig. 1~6, therefore this
Not detailed part, may refer to the related description in previous embodiment, this will not be repeated here in the description of embodiment.
Embodiment six
The processing procedure of above-mentioned processing module is described further in the present embodiment.It is regarded with reference to what Fig. 8 was provided
The schematic diagram of frequency image display device illustrates the processing procedure of processing module.
Camera is configured, the drainage pattern of camera is arranged to mirror image pattern, the video image of such camera acquisition
For mirror image reversed left to right.
The mirror image that A/D modules gather camera carries out analog-to-digital conversion, obtains digitized mirror image.A/D moulds
Mirror image after digitlization is input to processing module by block by VP.
Processing module is not limited to DSP (Digital Signal Processing, digital signal processor)+FPGA
The way of realization of (Field-Programmable Gate Array, field programmable gate array), can also universal cpu
The software module that (Central Processing Unit, central processing unit) is realized is realized.
Processing module first carries out Image Reversal to mirror image and obtains positive print picture, then carries out image volume to positive print picture
Code, finally by VP by after coding positive print picture export, by local terminal video conference terminal sending module to positive print picture
It is packaged, and passes through the video conference terminal that network interface is sent to distal end.
Processing module directly exports mirror image by VP, and digital-to-analogue conversion is carried out to the mirror image by D/A modules, it
The simulated mirror image can be shown by display device afterwards.
Since video conference terminal can also receive the video image of the video conference terminal transmission positioned at distal end, so
The receiving module of the video conference terminal of local terminal is inputted after a frame video image is received, by the frame video image by VP
To processing module, if the video image is positive print picture, processing module can be decoded the positive print picture, pass through VP
It exports and gives D/A modules, digital-to-analogue conversion is carried out to the positive print picture by D/A modules, it afterwards can be simulated to this by display device
Mirror image shown.
Correspondingly, if camera is arranged to erect image pattern, then camera gathers positive print picture, and processing module is directly right
The positive print picture is encoded and is passed through the video conference terminal that sending module is sent to distal end.It is shown for local terminal, handles mould
Block needs to be first mirror image by the erect image Image Reversal, can be shown.
Although for example purpose, the preferred embodiment of the present invention is had been disclosed for, those skilled in the art will recognize
Various improvement, increase and substitution are also possible, and therefore, the scope of the present invention should be not limited to above-described embodiment.
Claims (10)
1. a kind of video image display method, which is characterized in that including：
Call camera acquisition video image；
The video image of mirror image is shown in local terminal；
The video conference terminal that the video image of erect image is sent to positioned at distal end is shown.
2. the method as described in claim 1, which is characterized in that
The calling camera acquisition video image, including：
Call the video image of camera acquisition erect image；
In the video image by mirror image before local terminal is shown, further include：
The video image for the erect image that the camera is gathered carries out overturning processing, obtains the video image of mirror image.
3. the method as described in claim 1, which is characterized in that
The calling camera acquisition video image, including：
Call the video image of camera acquisition mirror image；
It is described the video image of erect image is sent to shown positioned at the video conference terminal of distal end before, also wrap
It includes：
The video image for the mirror image that the camera is gathered carries out overturning processing, obtains the video image of erect image.
4. method as claimed in claim 2 or claim 3, which is characterized in that the video image is subjected to overturning processing, including：
According to the YUV matrixes of the video image, inverted sequence line by line is carried out to the video image and is read, makes regarding for overturning before processing
Frequency image and overturning treated video image or so are opposite.
5. such as the method any one of claim 1-3, which is characterized in that in the calling camera acquisition video image
Before, further include：
The drainage pattern of the camera is set；Wherein, the drainage pattern is erect image pattern or mirror image pattern.
6. a kind of video image display apparatus, which is characterized in that including：
Calling module, for camera to be called to gather video image；
Display module, for the video image of mirror image to be shown in local terminal；
Sending module, the video conference terminal for being sent to the video image of erect image positioned at distal end are shown.
7. device as claimed in claim 6, which is characterized in that described device further includes processing module；
The calling module, for calling the video image of camera acquisition erect image；
The processing module, in the video image by mirror image before local terminal is shown, by the camera shooting
The video image of the erect image of head acquisition carries out overturning processing, obtains the video image of mirror image.
8. device as claimed in claim 6, which is characterized in that
The calling module, for calling the video image of camera acquisition mirror image；
The processing module, for it is described by the video image of erect image be sent to video conference terminal positioned at distal end into
Before row display, the video image for the mirror image that the camera is gathered carries out overturning processing, obtains the described of erect image and regards
Frequency image.
9. device as claimed in claim 7 or 8, which is characterized in that the processing module is further used for according to the video
The YUV matrixes of image carry out the video image inverted sequence line by line and read, make the video image of overturning before processing and overturning processing
Video image afterwards or so is opposite.
10. such as the device any one of claim 6-8, which is characterized in that described device further includes setup module；
The setup module, for before the calling camera acquisition video image, setting the acquisition mould of the camera
Formula；Wherein, the drainage pattern is erect image pattern or mirror image pattern.
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| CN110191298A (en) * | 2019-04-17 | 2019-08-30 | 广州虎牙信息科技有限公司 | Mobile terminal and its video rotation method, computer storage medium in record screen |
| CN113793410A (en) * | 2021-08-31 | 2021-12-14 | 北京达佳互联信息技术有限公司 | Video processing method and device, electronic equipment and storage medium |
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