CN106534972A - Method and device for nondestructive zoomed display of local video - Google Patents
Method and device for nondestructive zoomed display of local video Download PDFInfo
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- CN106534972A CN106534972A CN201611140391.2A CN201611140391A CN106534972A CN 106534972 A CN106534972 A CN 106534972A CN 201611140391 A CN201611140391 A CN 201611140391A CN 106534972 A CN106534972 A CN 106534972A
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- Prior art keywords
- original
- local video
- video
- yuv frames
- image
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Classifications
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- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 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, rendering scenes according to MPEG-4 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
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/44012—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving rendering scenes according to scene graphs, e.g. MPEG-4 scene graphs
Abstract
The embodiment of the invention provides a method and a device for nondestructive zoomed display of a local video. The method and the device for nondestructive zoomed display of the local video are used for solving the technical problem that an image display effect is destroyed as the video is zoomed to have a normal resolution when high-definition content is viewed through a common low-resolution displayer. The method of the embodiment comprises the steps of decoding the video into original yuv frames and determining a to-be-viewed appointed region of the original yuv frames; determining an interception region corresponding to the to-be-viewed appointed region and obtaining new yuv frames corresponding to the interception region; and rendering the new yuv frames to obtain and display a local video image at the original resolution corresponding to the interception region, and accordingly enabling the local video image to have the original resolution. The method and the device for nondestructive zoomed display of the local video solve the technical problem that the image display effect is destroyed as the video is zoomed to have the normal resolution when high-definition content is viewed through the common low-resolution displayer.
Description
Technical field
The present invention relates to video scaling field, more particularly to a kind of method and device of lossless Zoom display local video.
Background technology
Traditional video display resolution has relied on actual display, and video display resolution is that the reality of video exists
Resolution on display, in theory display resolution be no more than the physical resolution of display.
Traditional video display resolution has relied on actual display, and video display resolution is that video is actual aobvious
Show the resolution on device, display resolution is no more than the physical resolution of display in theory, such as 4k HD videos are used
Common 1080p display is played and is shown, each two field picture of 4K videos can be zoomed to 1080p by video card, the image so seen
Frame is exactly 1080p resolution, and word on video etc. all can cause common little resolution because have compressed and display effect is bad
Display checks HD video content, and the technology that video is scaled normal resolution and image display effect loss occurs is asked
Topic.
Therefore, common little resolution display checks HD video content, and video is scaled normal resolution and occurs
Image display effect loss is those skilled in the art's technical issues that need to address.
The content of the invention
A kind of method and device of lossless Zoom display local video is embodiments provided, it is common little for solving
Resolution display checks HD video content, and video is scaled normal resolution and the skill of image display effect loss occurs
Art problem.
The embodiment of the present invention provides a kind of method of lossless Zoom display local video, including：
Video is decoded as into original yuv frames, and determines the designated area to be viewed of the original yuv frames；
It is determined that the intercepting region corresponding with the designated area to be viewed obtaining corresponding with the intercepting region new
Yuv frames；
By rendering the local video that the new yuv frames are obtained and show original resolution corresponding with the intercepting region
Image.
Preferably, it is described that video is decoded as into original yuv frames, and determine the designated area to be viewed of the original yuv frames
Specifically include：
Video is decoded as into original yuv frames；
The designated area to be viewed of the original yuv frames is determined according to mouse coordinates and middle button of mouse rolling data.
Preferably, it is described to obtain and show original resolution corresponding with the intercepting region by rendering the new yuv frames
The local video image of rate is specifically included：
The local that new yuv frames acquisition original resolution corresponding with the intercepting region is rendered by DirectX regards
Frequency image；
Receive the local video image and show the local video image.
Preferably, it is described to obtain and show original resolution corresponding with the intercepting region by rendering the new yuv frames
Also include after the local video image of rate：
Obtain and show original full video image by rendering the original yuv frames according to mouse signal of rolling back.
Preferably, it is described to obtain and show original whole by rendering the original yuv frames according to mouse signal of rolling back
Video image is specifically included：
The original yuv frames are rendered by DirectX obtain original full video image according to mouse signal of rolling back；
Receive the full video image and show the full video image.
The embodiment of the present invention provides a kind of device of lossless Zoom display local video, based on above-mentioned a kind of lossless scaling
Show that the method for local video is zoomed in and out, including：
Decoding and determination regions module, for video is decoded as original yuv frames, and determine treating for the original yuv frames
Check designated area；
Frame module is taken, for determining the intercepting region corresponding with the designated area to be viewed and obtaining and the intercepting
The corresponding new yuv frames in region；
First rendering module, for obtaining and showing original corresponding with the intercepting region by rendering the new yuv frames
The local video image of beginning resolution.
Preferably, the decoding is specifically included with determination regions module：
Decoding unit, for video is decoded as original yuv frames；
Area determination unit, for determining treating for the original yuv frames according to mouse coordinates and middle button of mouse rolling data
Check designated area.
Preferably, first rendering module is specifically included：
First image acquisition unit, obtains corresponding with the intercepting region for rendering the new yuv frames by DirectX
Original resolution local video image；
First image-display units, for receiving the local video image and showing the local video image.
Preferably, the device of the lossless Zoom display local video also includes：
Second rendering module, for obtaining and showing original by rendering the original yuv frames according to mouse signal of rolling back
Full video image.
Preferably, second rendering module is specifically included：
Second image acquisition unit, for rendering the original yuv frames by DirectX and obtaining according to mouse signal of rolling back
Original full video image；
Second image-display units, for receiving the full video image and showing the full video image.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
Present invention method is by being decoded as original yuv frames by video, and determines the to be viewed of the original yuv frames
Designated area；It is determined that the intercepting region corresponding with the designated area to be viewed obtaining corresponding with the intercepting region new
Yuv frames；By rendering the local video figure that the new yuv frames are obtained and show original resolution corresponding with the intercepting region
Picture, so that the local video image is original resolution, solves common little resolution display and checks HD video
Content, video are scaled normal resolution and the technical problem of image display effect loss occur.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 provides a kind of signal of one embodiment of the method for lossless Zoom display local video for the embodiment of the present invention
Figure；
Fig. 2 provides a kind of showing for another embodiment of the method for lossless Zoom display local video for the embodiment of the present invention
It is intended to；
Fig. 3 provides a kind of signal of one embodiment of the device of lossless Zoom display local video for the embodiment of the present invention
Figure；
Fig. 4 provides a kind of signal of an application examples of the method for lossless Zoom display local video for the embodiment of the present invention
Figure；
Fig. 5 provides original in an a kind of application examples of the method for lossless Zoom display local video for the embodiment of the present invention
The schematic diagram of image；
Fig. 6 provides original in an a kind of application examples of the method for lossless Zoom display local video for the embodiment of the present invention
The schematic diagram of designated area to be viewed is determined in image；
Fig. 7 provides final in an a kind of application examples of the method for lossless Zoom display local video for the embodiment of the present invention
Show the schematic diagram of topography.
Specific embodiment
A kind of method and device of lossless Zoom display local video is embodiments provided, it is common little for solving
Resolution display checks HD video content, and video is scaled normal resolution and the skill of image display effect loss occurs
Art problem.
To enable goal of the invention of the invention, feature, advantage more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Fig. 1 is referred to, the embodiment of the present invention provides a kind of one embodiment of the method for lossless Zoom display local video,
Including：
101st, video is decoded as into original yuv frames, and determines the designated area to be viewed of the original yuv frames；
102nd, determine the intercepting region corresponding with the designated area to be viewed and obtain corresponding with the intercepting region
New yuv frames；
103rd, by rendering the local that the new yuv frames are obtained and show original resolution corresponding with the intercepting region
Video image.
It is more than to a kind of one embodiment of the method for lossless Zoom display local video provided in an embodiment of the present invention
It is described in detail, below by a kind of the another of method of lossless Zoom display local video provided in an embodiment of the present invention
Individual embodiment is described in detail.
Fig. 1 is referred to, the embodiment of the present invention provides a kind of one embodiment of the method for lossless Zoom display local video,
Including：
201st, video is decoded as into original yuv frames；
202nd, the designated area to be viewed of the original yuv frames is determined according to mouse coordinates and middle button of mouse rolling data.
203rd, determine the intercepting region corresponding with the designated area to be viewed and obtain corresponding with the intercepting region
New yuv frames；
204th, by rendering the local that the new yuv frames are obtained and show original resolution corresponding with the intercepting region
Video image.
205th, the office that the new yuv frames obtain original resolution corresponding with the intercepting region is rendered by DirectX
Portion's video image；
206th, receive the local video image and show the local video image.
207th, obtain and show original all videos figure by rendering the original yuv frames according to mouse signal of rolling back
Picture.
208th, the original yuv frames are rendered by DirectX obtain original all videos figure according to mouse signal of rolling back
Picture；
209th, receive the full video image and show the full video image.
It is more than another enforcement to a kind of method of lossless Zoom display local video provided in an embodiment of the present invention
Example is described in detail, below by a kind of device of lossless Zoom display local video provided in an embodiment of the present invention
Individual embodiment is described in detail.
Fig. 3 is referred to, the embodiment of the present invention provides a kind of device of lossless Zoom display local video, based on above-mentioned one
The method for planting lossless Zoom display local video is zoomed in and out, including：
Decoding and determination regions module 301, for video is decoded as original yuv frames, and determine the original yuv frames
Designated area to be viewed；
Take frame module 302, for determine the intercepting region corresponding with the designated area to be viewed and acquisition with it is described
Intercept the corresponding new yuv frames in region；
First rendering module 303, for obtaining and showing corresponding with the intercepting region by rendering the new yuv frames
The local video image of original resolution.
Decoding is specifically included with determination regions module 301：
Decoding unit 401, for video is decoded as original yuv frames；
Area determination unit 402, for determining the original yuv frames according to mouse coordinates and middle button of mouse rolling data
Designated area to be viewed.
First rendering module 303 is specifically included：
First image acquisition unit 501, obtains and the intercepting region for rendering the new yuv frames by DirectX
The local video image of corresponding original resolution；
First image-display units 502, for receiving the local video image and showing the local video image.
The device of lossless Zoom display local video provided in an embodiment of the present invention also includes：
Second rendering module 304, for obtaining and showing original by rendering the original yuv frames according to mouse signal of rolling back
The full video image of beginning.
Second rendering module 304 is specifically included：
Second image acquisition unit 601, for rendering the original yuv frame by DirectX according to mouse signal of rolling back
Obtain original full video image；
Second image-display units 602, for receiving the full video image and showing the full video image.
It is more than to a kind of one embodiment of the device of lossless Zoom display local video provided in an embodiment of the present invention
It is described in detail, below by a kind of method of lossless Zoom display local video provided in an embodiment of the present invention
Application examples is described in detail.
Fig. 4 is referred to, traditional video display resolution has relied on actual display, and video display resolution is regarded
The actual resolution over the display of frequency, in theory display resolution be no more than the physical resolution of display, such as 4k
HD video is played with common 1080p display and is shown, each two field picture of 4K videos can be zoomed to 1080p by video card, so
The picture frame seen is exactly 1080p resolution, and word on video etc. all can be because have compressed and display effect is bad, the present invention
Original yuv frame of one application examples of the method for a kind of lossless Zoom display local video of embodiment by intercepting HD video
Regional area, by intercept new local video image yuv frames render including on normal resolution display, although so
What is seen is not video Zone Full, but can be seen by self-defined specified local location any region of video it is original not
The image of scaling, intercept operation by mouse in video designated area roll mouse key determining the region of intercepting in real time, this
Some zoom operations of somewhat similar map, if need not look at regional area, can rolling back after mouse, it is original complete to fall back on
Portion region.
It is to cut out local pixel content according to position based on original yuv frames to obtain new yuv frames to intercept image,
DirectX renders image yuv frames by video card to complete, and during mouse rollovers, high-frequency change intercepts video designated area
Can typically all load what is must risen for video card, be not in load situation too big and that frame per second is reduced.
The technical program mainly solves high-resolution video and common resolution is scaled on normal resolution display
Rate and there is the problem of image display effect distortion, can be applicable to some fields (such as security protection video monitoring etc.).
The invention provides a kind of method of lossless Zoom display local video, traditional video display resolution be all according to
Rely in actual display, video display resolution is the actual resolution over the display of video, in theory display resolution
It is no more than the physical resolution of display, topography of the present invention by real-time interception high score rate video, by Local map
It is displayed on normal resolution display as lossless, is so capable of achieving normal resolution display and checks HD video designated area
Content, the intercept operation of topography by mouse in video designated area roll mouse key determining the area of intercepting in real time
Domain, zooms to the topography of the video for original resolution, i.e. lossless compress of maximum level intercepting, solves common little resolution
Rate display checks HD video content, and video is scaled normal resolution and the problem of image display effect loss occurs.
Refer to Fig. 5, an a kind of application of method of lossless Zoom display local video provided in an embodiment of the present invention
The video source of example adopts 4K monitoring cameras, checks on the computer in common 1080p resolution, in full frame maximization video pair
In the case of words frame, the car plate of road running vehicle or some do not see.
Refer to Fig. 6, when to video press a kind of method of lossless Zoom display local video provided in an embodiment of the present invention,
In choosing figure, white box choosing part only shows its vehicle topography (the white frame portion of Fig. 6 as designated area to be viewed
Point) when, it becomes possible to clearly see license plate number：Such as Fig. 7.
Fig. 7 is final display result.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
The above, above example only to illustrate technical scheme, rather than a limitation；Although with reference to front
State embodiment to be described in detail the present invention, it will be understood by those within the art that：Which still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of method of lossless Zoom display local video, it is characterised in that include：
Video is decoded as into original yuv frames, and determines the designated area to be viewed of the original yuv frames；
It is determined that the intercepting region corresponding with the designated area to be viewed acquisition new yuv corresponding with the intercepting region
Frame；
By rendering the local video figure that the new yuv frames are obtained and show original resolution corresponding with the intercepting region
Picture.
2. the method for a kind of lossless Zoom display local video according to claim 1, it is characterised in that described by video
Original yuv frames are decoded as, and determine that the designated area to be viewed of the original yuv frames is specifically included：
Video is decoded as into original yuv frames；
The designated area to be viewed of the original yuv frames is determined according to mouse coordinates and middle button of mouse rolling data.
3. the method for a kind of lossless Zoom display local video according to claim 1, it is characterised in that described by wash with watercolours
Contaminate the new yuv frames and obtain and show that the local video image of original resolution corresponding with the intercepting region is specifically included：
The local video figure that the new yuv frames obtain original resolution corresponding with the intercepting region is rendered by DirectX
Picture；
Receive the local video image and show the local video image.
4. the method for a kind of lossless Zoom display local video according to claim 1, it is characterised in that described by wash with watercolours
Contaminate the new yuv frames to obtain and also wrap after showing the local video image of original resolution corresponding with the intercepting region
Include：
Obtain and show original full video image by rendering the original yuv frames according to mouse signal of rolling back.
5. the method for a kind of lossless Zoom display local video according to claim 4, it is characterised in that described according to Mus
Mark signal of rolling back to obtain and show that original full video image is specifically included by rendering the original yuv frames：
The original yuv frames are rendered by DirectX obtain original full video image according to mouse signal of rolling back；
Receive the full video image and show the full video image.
6. a kind of device of lossless Zoom display local video, based on one kind nothing as described in any one in claim 1 to 5
The method for damaging Zoom display local video is zoomed in and out, it is characterised in that included：
Decoding and determination regions module, for video is decoded as original yuv frames, and determine the to be viewed of the original yuv frames
Designated area；
Frame module is taken, for determining the intercepting region corresponding with the designated area to be viewed and obtaining and the intercepting region
Corresponding new yuv frames；
First rendering module, for obtaining and showing corresponding with the intercepting region original point by rendering the new yuv frames
The local video image of resolution.
7. the device of a kind of lossless Zoom display local video according to claim 6, it is characterised in that the decoding with
Determine that regions module is specifically included：
Decoding unit, for video is decoded as original yuv frames；
Area determination unit, for determining the to be viewed of the original yuv frames according to mouse coordinates and middle button of mouse rolling data
Designated area.
8. a kind of device of lossless Zoom display local video according to claim 6, it is characterised in that first wash with watercolours
Dye module is specifically included：
First image acquisition unit, obtains original corresponding with the intercepting region for rendering the new yuv frames by DirectX
The local video image of beginning resolution；
First image-display units, for receiving the local video image and showing the local video image.
9. a kind of device of lossless Zoom display local video according to claim 1, it is characterised in that the lossless contracting
Put and show that the device of local video also includes：
Second rendering module, for original complete by rendering the original yuv frames and obtaining and show according to mouse signal of rolling back
Portion's video image.
10. the device of a kind of lossless Zoom display local video according to claim 9, it is characterised in that described second
Rendering module is specifically included：
Second image acquisition unit, for rendering the original yuv frames by DirectX and obtaining original according to mouse signal of rolling back
Full video image；
Second image-display units, for receiving the full video image and showing the full video image.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140391.2A CN106534972A (en) | 2016-12-12 | 2016-12-12 | Method and device for nondestructive zoomed display of local video |
| PCT/CN2017/089309 WO2018107710A1 (en) | 2016-12-12 | 2017-06-21 | Method and apparatus for losslessly scaling and displaying local video |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140391.2A CN106534972A (en) | 2016-12-12 | 2016-12-12 | Method and device for nondestructive zoomed display of local video |
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| Publication Number | Publication Date |
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| CN106534972A true CN106534972A (en) | 2017-03-22 |
Family
ID=58341956
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611140391.2A Pending CN106534972A (en) | 2016-12-12 | 2016-12-12 | Method and device for nondestructive zoomed display of local video |
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| CN (1) | CN106534972A (en) |
| WO (1) | WO2018107710A1 (en) |
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| CN110944186A (en) * | 2019-12-10 | 2020-03-31 | 杭州当虹科技股份有限公司 | High-quality viewing method for local area of video |
| CN110944186B (en) * | 2019-12-10 | 2022-02-01 | 杭州当虹科技股份有限公司 | High-quality viewing method for local area of video |
| CN111741274A (en) * | 2020-08-25 | 2020-10-02 | 北京中联合超高清协同技术中心有限公司 | Ultrahigh-definition video monitoring method supporting local amplification and roaming of picture |
| CN112218026A (en) * | 2020-08-25 | 2021-01-12 | 北京中联合超高清协同技术中心有限公司 | Ultra-high definition image conversion device |
| CN112218026B (en) * | 2020-08-25 | 2023-08-29 | 北京中联合超高清协同技术中心有限公司 | Ultrahigh-definition image conversion device |
| CN113852757A (en) * | 2021-09-03 | 2021-12-28 | 维沃移动通信（杭州）有限公司 | Video processing method, device, equipment and storage medium |
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| WO2018107710A1 (en) | 2018-06-21 |
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