CN104469239A - Immersive video presenting method of smart mobile terminal - Google Patents
Immersive video presenting method of smart mobile terminal Download PDFInfo
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- CN104469239A CN104469239A CN201410738472.7A CN201410738472A CN104469239A CN 104469239 A CN104469239 A CN 104469239A CN 201410738472 A CN201410738472 A CN 201410738472A CN 104469239 A CN104469239 A CN 104469239A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
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Abstract
The invention relates to an immersive video presenting method of a smart mobile terminal. The immersive video presenting method is characterized in that when a user opens a video file in the smart mobile terminal, ambient brightness information when the video file is shot is extracted according to content of the video file, ambient brightness information of the environment where the user is located when the user watches the video file is collected at the same time, and the video file is played when the ambient brightness information when the video file is shot is matched with the ambient brightness information of the environment where the user is located when the user watches the video file, otherwise, playing of the video file is paused. Compared with the prior art, the immersive video presenting method has the advantages that experience of watching videos of a viewer can be close to the environment of a photographer as much as possible, and an immersive type feeling is generated; the viewer collects ambient light to open videos, and interestingness of video opening is improved.
Description
Technical field
The present invention relates to a kind of immersion video presentation method of intelligent mobile terminal.
Background technology
Along with the extensive use of the intelligent mobile terminal such as smart mobile phone and pad, this series products has become the instrument of the indispensable viewing video of people.Generally user is be indifferent to environment residing for self with intelligent mobile terminal viewing video, and beholder may go down at strong sunlight the video of viewing one section shooting night scene, also may the video of light is very dark at night place viewing bright light.For this kind of situation, video-see user and the environment residing for video capture person have larger difference, and the experience thus watching video often has incongruity, or does not see, or can be very dazzling, thus cause the video watched to lack feeling of immersion and the sense of reality.In brief, can not empathize with photographer exactly, good video tastes cannot be obtained.
Summary of the invention
Technical problem to be solved by this invention provides a kind of immersion video presentation method that can carry out interactive perception to the light of viewing environment and video capture environment for above-mentioned prior art.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of immersion video presentation method of intelligent mobile terminal, it is characterized in that: when opening the video file in intelligent mobile terminal user, according to video file content, extract ambient brightness information during the described video file of shooting, gather ambient brightness information residing when user watches described video file simultaneously, during residing when the ambient brightness information when taking described video file and user watch described video file ambient brightness information match, just play described video file, otherwise suspend and play described video file.
As improvement, ambient brightness information when taking described video file is extracted in the following manner: when opening the video file in intelligent mobile terminal user, in selecting video file image information compared with a width picture of horn of plenty as the picture that fixes of video file, then extract the monochrome information of this picture that fixes, the monochrome information of the picture that this fixed is as ambient brightness information during the described video file of shooting.
Improve again, described in fix picture adopt following steps choose:
Step 1, decode video files, make decode video files become the image of multiple YUV color format;
Step 2, the image down 2 ~ 16 times that step 1 is obtained;
Some subgraphs that step 3, the Iamge Segmentation adopting threshold method step 2 to be obtained become otherness larger, choose segmentation gained subgraph quantity and are greater than the image of set point as alternative image;
Step 4, alternative image step 3 obtained do Face datection, choose there is face image as the picture that fixes, if there are multiple to have the image of face, then choose a most balanced image with face of histogram as the picture that fixes.Improve, when user watches described video file, residing ambient brightness information obtains in the following manner again: step a, open intelligent mobile terminal camera and obtain ambient image: when detecting that intelligent mobile terminal does not exist camera, prompting cannot obtain ambient brightness; When there is two cameras in intelligent mobile terminal, first open front-facing camera and gather ambient image, if front-facing camera is blocked, closes front-facing camera and open post-positioned pick-up head collection ambient image, if when the camera that intelligent mobile terminal exists all is blocked, then user is pointed out to block camera;
Ambient brightness information residing when step b, the monochrome information extracting the ambient image that analyzing step a obtains watch described video file as user.
If it is rgb format that intelligent mobile terminal camera obtains ambient image form, conversion formula Y=0.299R+0.587G+0.114B is utilized to obtain the monochrome information of this ambient image, wherein " Y " represents lightness, and R, G, B represent the colouring information of red, green, blue three passages of ambient image respectively.
Improve again, ambient brightness information residing when ambient brightness information and user when designing a described video file of shooting watch described video file mate scene, mate scene layout strategy as follows:
Strategy a, with the picture that fixes for surface plot, ambient brightness information residing when ambient brightness information on surface plot during the described video file of mark shooting and user watch described video file, and ambient brightness information residing when ambient brightness information when adopting equilateral triangle and del to represent the described video file of shooting respectively and user watch described video file, utilize slider bar to characterize matching degree between the two, the situation when high order end of slider bar represents that brightness is minimum, the low order end of slider bar represents the situation that brightness is the brightest; Equilateral triangle below slider bar represents ambient brightness information during the described video file of shooting, residing ambient brightness information when the inverted triangle above slider bar represents viewing described video file; When such a match occurs, video file unlocks and starts to play;
Strategy b, to fixing, picture does Fuzzy Processing, ambient brightness information gap when ambient brightness information residing when user watches described video file and the described video file of the shooting picture that fixes more greatly is fuzzyyer, otherwise the picture that fixes is more clear, does not do Fuzzy Processing when both mate completely;
The fix brightness value of picture of strategy c. changes along with the change of ambient brightness information residing when user watches described video file, and when the ambient brightness residing when user watches described video file is dimmed, the picture that fixes is dimmed, otherwise the picture that fixes brightens.
Improve, the condition design of ambient brightness information match residing when ambient brightness information when taking described video file and user watch described video file is as follows again:
When error amount between ambient brightness information residing when condition a, ambient brightness information when taking described video file and user watch described video file is less than default error threshold, namely think shooting described video file time ambient brightness information and the ambient brightness information match residing when watching described video file of user; Error threshold is 5% ~ 15%;
When condition b, ambient brightness information when taking described video file and user watch described video file, residing ambient brightness information is all mated within a period of time, just think shooting described video file time ambient brightness information and the ambient brightness information match residing when watching described video file of user.
Compared with prior art, the invention has the advantages that: by extracting ambient brightness information during the described video file of shooting, gather ambient brightness information residing when user watches described video file simultaneously, during residing when only having the ambient brightness information when taking described video file and user to watch described video file ambient brightness information match, just play described video file, otherwise suspend and play described video file, experience when allowing beholder watch video as far as possible close to photographer's environment, can produce the sensation of immersion; The mode that beholder opens video is by gathering ambient light, improving the interest opening video.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, viewing environment and video capture ambient brightness user point out schematic diagram;
Fig. 2 is that in the embodiment of the present invention, viewing environment too dark brightness causes video not match condition schematic diagram;
To be that in the embodiment of the present invention, viewing environment brightness is excessively bright cause video not match condition schematic diagram to Fig. 3;
Fig. 4 is viewing environment and the complete match condition schematic diagram of luminance video in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The invention provides a kind of immersion video presentation method of intelligent mobile terminal, when opening the video file in intelligent mobile terminal user, according to video file content, extract ambient brightness information during the described video file of shooting, gather ambient brightness information residing when user watches described video file simultaneously, during residing when the ambient brightness information when taking described video file and user watch described video file ambient brightness information match, just play described video file, otherwise suspend the described video file of broadcasting.
Because the dependency degree of the present invention to hardware and software is less, have certain popularity, thus concrete practical matter can be used in most video messaging class software.
Ambient brightness information when taking described video file is extracted in the following manner: when opening the video file in intelligent mobile terminal user, in selecting video file image information compared with a width picture of horn of plenty as the picture that fixes of video file, then extract the monochrome information of this picture that fixes, the monochrome information of the picture that this fixed is as ambient brightness information during the described video file of shooting.
The described picture that fixes adopts following steps to choose:
Step 1, decode video files, make decode video files become the image of multiple YUV color format;
Step 2, the image down 2 ~ 16 times that step 1 is obtained;
Some subgraphs that step 3, the Iamge Segmentation adopting threshold method step 2 to be obtained become otherness larger, choose segmentation gained subgraph quantity and are greater than the image of set point as alternative image; " image Segmentation Technology based on threshold method " that threshold method used herein adopts cloudy national wealth to write, is published in modern electronic technology, 2007 (23): 107-108;
Step 4, alternative image step 3 obtained do Face datection, choose there is face image as the picture that fixes, if there are multiple to have the image of face, then choose a most balanced image with face of histogram as the picture that fixes.In this step, human face detection tech is routine techniques, choosing the technology that a most balanced image with face of histogram adopts is " several light irradiation preprocess method contrast being applied to recognition of face " that Meng Fang soldier and Wu Lei write, announced by Wuhan University of Technology's journal, the announcement time is 2010 (32): 542-546.
The picture that fixes is the picture that video file shows at first; understand to the most initial impression of user; because the usual picture of the first frame of video is comparatively simple even almost without any image information; and any frame in selecting video file easily finds too and rocks ambiguous picture; select the suitable picture that fixes then can reach the effect attracting user better, the picture that therefore preferably fixes is necessary.
When user watches described video file, residing ambient brightness information obtains in the following manner:
Step a, unlatching intelligent mobile terminal camera obtain ambient image: point out and cannot obtain ambient brightness when detecting that intelligent mobile terminal does not exist camera; When there is two cameras in intelligent mobile terminal, first open front-facing camera and gather ambient image, if front-facing camera is blocked, closes front-facing camera and open post-positioned pick-up head collection ambient image, if when the camera that intelligent mobile terminal exists all is blocked, then user is pointed out to block camera;
Ambient brightness information residing when step b, the monochrome information extracting the ambient image that analyzing step a obtains watch described video file as user.
Have multiple color coded format in image, modal two kinds of forms are RGB and yuv format.Rgb format is a kind of color standard of industrial quarters, by obtaining shades of colour to the change of red (R), green (G), blue (B) three Color Channels and their superpositions each other, namely RGB is the color representing red, green, blue three passages, this standard almost include human eyesight can all colours of perception, be use one of the widest color format at present.And the YUV color format of another kind of extensive use refers to the pixel format that brightness parameter Y and colourity parameter UV separately represents, and the benefit of separating like this is exactly not only to avoid mutual interference, the sample rate of colourity can also be reduced and can not affect too large on picture quality.Wherein " Y " represents lightness, namely grey decision-making; What " U " and " V " represented is then colourity, and effect describes colors of image and saturation, is used to specify the color of pixel." brightness " is through RGB input signal to set up, and method is superimposed together by the specific part of rgb signal." colourity " then defines two aspects-tone and the saturation of color, represents respectively with Cr and Cb.Wherein, Cr reflects the difference between RGB input signal RED sector and rgb signal brightness value.And Cb reflection is difference between RGB input signal blue portion and rgb signal brightness value.Therefore, by the Y-component of the sign monochrome information in each pixel value of entire image is averaged the brightness value that can obtain entire image.Then adopt suitable conversion formula to carry out being converted to Y-component value when picture format is not YUV color format, such as RGB turns yuv format etc.In order to reduce amount of calculation, when obtained color format is not yuv format, transform components only needs Y-component.When such as color format RGB turns YUV, only need to utilize conversion formula Y=0.299R+0.587G+0.114B.
Brightness value difference between current environment and video scene can be experienced intuitively to allow user, ambient brightness information residing when ambient brightness information and user when designing a described video file of shooting watch described video file mate scene, mate scene layout strategy as follows:
Strategy a, with the picture that fixes for surface plot, ambient brightness information residing when ambient brightness information on surface plot during the described video file of mark shooting and user watch described video file, and ambient brightness information residing when ambient brightness information when adopting equilateral triangle and del to represent the described video file of shooting respectively and user watch described video file, utilize slider bar to characterize matching degree between the two, the situation when high order end of slider bar represents that brightness is minimum, the low order end of slider bar represents the situation that brightness is the brightest, as shown in Figure 1; Equilateral triangle below slider bar represents ambient brightness information during the described video file of shooting, residing ambient brightness information when the inverted triangle above slider bar represents viewing described video file; When such a match occurs, video file unlocks and starts to play;
Strategy b, to fixing, picture does Fuzzy Processing, ambient brightness information gap when ambient brightness information residing when user watches described video file and the described video file of the shooting picture that fixes more greatly is fuzzyyer, otherwise the picture that fixes is more clear, does not do Fuzzy Processing when both mate completely; As shown in Figure 2, brightness value between the two differs greatly, and fuzzy pictures degree is higher, and in Fig. 3, the relatively little fog-level of brightness value difference reduces, and in Fig. 4, both coupling pictures are clear
The fix brightness value of picture of strategy c. changes along with the change of ambient brightness information residing when user watches described video file, when the ambient brightness residing when user watches described video file is dimmed, the picture that fixes is dimmed, as shown in Figure 2, otherwise the picture that fixes brightens, as shown in Figure 3.
The condition design of ambient brightness information match residing when ambient brightness information when taking described video file and user watch described video file is as follows:
When error amount between ambient brightness information residing when condition a, ambient brightness information when taking described video file and user watch described video file is less than default error threshold, namely think shooting described video file time ambient brightness information and the ambient brightness information match residing when watching described video file of user; Error threshold is 5% ~ 15%;
When condition b, ambient brightness information when taking described video file and user watch described video file, residing ambient brightness information is all mated within a period of time, just think shooting described video file time ambient brightness information and the ambient brightness information match residing when watching described video file of user.
Claims (7)
1. the immersion video presentation method of an intelligent mobile terminal, it is characterized in that: when opening the video file in intelligent mobile terminal user, according to video file content, extract ambient brightness information during the described video file of shooting, gather ambient brightness information residing when user watches described video file simultaneously, during residing when the ambient brightness information when taking described video file and user watch described video file ambient brightness information match, just play described video file, otherwise suspend the described video file of broadcasting.
2. the immersion video presentation method of intelligent mobile terminal according to claim 1, it is characterized in that: ambient brightness information when taking described video file is extracted in the following manner: when opening the video file in intelligent mobile terminal user, in selecting video file image information compared with a width picture of horn of plenty as the picture that fixes of video file, then extract the monochrome information of this picture that fixes, the monochrome information of the picture that this fixed is as ambient brightness information during the described video file of shooting.
3. the immersion video presentation method of intelligent mobile terminal according to claim 2, is characterized in that: described in fix picture adopt following steps choose:
Step 1, decode video files, make decode video files become the image of multiple YUV color format;
Step 2, the image down 2 ~ 16 times that step 1 is obtained;
Some subgraphs that step 3, the Iamge Segmentation adopting threshold method step 2 to be obtained become otherness larger, choose segmentation gained subgraph quantity and are greater than the image of set point as alternative image;
Step 4, alternative image step 3 obtained do Face datection, choose there is face image as the picture that fixes, if there are multiple to have the image of face, then choose a most balanced image with face of histogram as the picture that fixes.
4. the immersion video presentation method of intelligent mobile terminal according to claim 1, is characterized in that: when user watches described video file, residing ambient brightness information obtains in the following manner:
Step a, unlatching intelligent mobile terminal camera obtain ambient image: point out and cannot obtain ambient brightness when detecting that intelligent mobile terminal does not exist camera; When there is two cameras in intelligent mobile terminal, first open front-facing camera and gather ambient image, if front-facing camera is blocked, closes front-facing camera and open post-positioned pick-up head collection ambient image, if when the camera that intelligent mobile terminal exists all is blocked, then user is pointed out to block camera;
Ambient brightness information residing when step b, the monochrome information extracting the ambient image that analyzing step a obtains watch described video file as user.
5. the immersion video presentation method of intelligent mobile terminal according to claim 4, it is characterized in that: if it is rgb format that intelligent mobile terminal camera obtains ambient image form, conversion formula Y=0.299R+0.587G+0.114B is utilized to obtain the monochrome information of this ambient image, wherein " Y " represents lightness, and R, G, B represent the colouring information of red, green, blue three passages of ambient image respectively.
6. the immersion video presentation method of intelligent mobile terminal according to claim 2, it is characterized in that: ambient brightness information residing when ambient brightness information and user when designing a described video file of shooting watch described video file mate scene, mate scene layout strategy as follows:
Strategy a, with the picture that fixes for surface plot, ambient brightness information residing when ambient brightness information on surface plot during the described video file of mark shooting and user watch described video file, and ambient brightness information residing when ambient brightness information when adopting equilateral triangle and del to represent the described video file of shooting respectively and user watch described video file, utilize slider bar to characterize matching degree between the two, the situation when high order end of slider bar represents that brightness is minimum, the low order end of slider bar represents the situation that brightness is the brightest; Equilateral triangle below slider bar represents ambient brightness information during the described video file of shooting, residing ambient brightness information when the inverted triangle above slider bar represents viewing described video file; When such a match occurs, video file unlocks and starts to play;
Strategy b, to fixing, picture does Fuzzy Processing, ambient brightness information gap when ambient brightness information residing when user watches described video file and the described video file of the shooting picture that fixes more greatly is fuzzyyer, otherwise the picture that fixes is more clear, does not do Fuzzy Processing when both mate completely;
The fix brightness value of picture of strategy c. changes along with the change of ambient brightness information residing when user watches described video file, and when the ambient brightness residing when user watches described video file is dimmed, the picture that fixes is dimmed, otherwise the picture that fixes brightens.
7. the immersion video presentation method of intelligent mobile terminal according to claim 2, is characterized in that: the condition design of ambient brightness information match residing when ambient brightness information when taking described video file and user watch described video file is as follows:
When error amount between ambient brightness information residing when condition a, ambient brightness information when taking described video file and user watch described video file is less than default error threshold, namely think shooting described video file time ambient brightness information and the ambient brightness information match residing when watching described video file of user; Error threshold is 5% ~ 15%;
When condition b, ambient brightness information when taking described video file and user watch described video file, residing ambient brightness information is all mated within a period of time, just think shooting described video file time ambient brightness information and the ambient brightness information match residing when watching described video file of user.
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| CN201410738472.7A CN104469239B (en) | 2014-12-05 | 2014-12-05 | A kind of immersion video presentation method of intelligent mobile terminal |
| PCT/CN2015/000223 WO2016086493A1 (en) | 2014-12-05 | 2015-03-31 | Immersive video presentation method for intelligent mobile terminal |
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| CN106604103A (en) * | 2016-12-21 | 2017-04-26 | 青岛海信电器股份有限公司 | Display method and display device for television starting advertisement |
| WO2022016977A1 (en) * | 2020-07-19 | 2022-01-27 | 平安国际智慧城市科技股份有限公司 | Online real-time data exchange method and apparatus, electronic device, and storage medium |
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| WO2016086493A1 (en) | 2016-06-09 |
| CN104469239B (en) | 2018-08-03 |
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