CN102221969B - Multipoint-touch-technology-based video scaling method - Google Patents
Multipoint-touch-technology-based video scaling method Download PDFInfo
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- CN102221969B CN102221969B CN2011101544288A CN201110154428A CN102221969B CN 102221969 B CN102221969 B CN 102221969B CN 2011101544288 A CN2011101544288 A CN 2011101544288A CN 201110154428 A CN201110154428 A CN 201110154428A CN 102221969 B CN102221969 B CN 102221969B
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Abstract
The invention provides a multipoint-touch-technology-based video scaling method. A flow for implementing the method comprises the following steps that: a user performs at least two paths of touch operations in different directions, and a touch signal capturing module captures the touch operations, and generates touch signals; a touch signal integration module receives the touch signals, and integrates the touch signals into a primary track signal; a touch signal processing module forms a track signal tending to be smooth; a touch signal filtering module performs sequence point extraction according to a time interval, and generates signal group values recognizable for an application layer; a touch response module converts the signal group values of each time point into the initial location and width and height values of the display of a video picture; a video scaling module converts data displayed by a video; and a video display module renders pictures obtained by the scaling of the video at each time point on a display screen until the processing of the signal group values of each time point is finished. By the method, the previewing and selective playing of the video can be realized in response to the multipoint touch operations of the user, and the operating experiences of the user are improved.
Description
[technical field]
The present invention relates to a kind of technology of video scaling, especially a kind of video scaling techniques based on multipoint-touch-technology.
[background technology]
The touch technology people are not strange, and the cash dispenser of bank has touch screen function mostly, and there is the computer of this touch technology in the hall in a lot of hospitals, library etc., supports that mobile phone, MP3, the digital camera of touch-screen are also a lot.But the touch-control curtain that these have existed all is single-point touch, can only identify and support touch-control, the click of every next finger, if there is simultaneously plural point touched, just can not make correct response, and multipoint-touch-technology can be Task-decomposing the work of two aspects, the one, gather simultaneously multi-point signal, and the 2nd, the meaning of every road signal is judged, so-called gesture identification namely, thus realize click, the touch-control action that five fingers of On-Screen Identification people are done simultaneously.
The appearance of multi-point touch is the again brand-new upgrading of user control interface after the mouse appearance, and this brand-new user interface is passed through the software support of innovation and the multi-point touch screen of super large, can easily control all by finger.
For a long time, people only are accustomed to controlling computer picture with mouse always, and this causes multipoint-touch-technology can't obtain complete utilization in sci-tech product.In theory, utilize finger directly at the enterprising line operate of screen more than will come more accurately with mouse.Although this can allow the user expend more action and muscle power, can in controlling process, obtain more enjoyment.In addition, various 3D images or image processing software interface are arranged at present, design too complexity in the process of controlling, must arrange in pairs or groups mouse and keyboard use in the lump, even many modes of operation also rely on intuition and experience, could obtain best control mode.Therefore, multipoint-touch-technology is expected to replace present employed keyboard, mouse, will further embody the future trend of hommization operating and controlling interface.
At present touch technology widespread use on portable equipment, application program on the portable equipment will be tending towards supporting the control of touch gradually in the future, what can touch on a lot of portable products as present user is Photo Browser, the zoom function of the application such as web browser is based on multipoint-touch-technology and realizes, the video player zoom function of realizing on the portable equipment at present all is based on the control that touch-tone mode realizes video scaling, the screen that is exactly equipment is supported touch-control control, also only realize the single-point touch function key buttons, trigger video player and switch back and forth the resolution sizes that current video is play by several fixing zoom mode, and the corresponding resolution of these several patterns and wide high proportion arrange generally and all fix, can not there be the user to control resolution sizes and the wide high proportion of current displaying video fully, allows the user can find the suitable broadcast display mode of oneself watching; Also affect simultaneously the user touch of touch control device has been experienced, and used touch-tone control, user to need at least the function key of very clear current broadcast to discharge, and the selection of corresponding Menu key, user's gesture operation can not be identified.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of video scaling method based on multipoint-touch-technology, and the multiple point touching that it can respond the user operates to realize the convergent-divergent of video, has improved user's operating experience.
The present invention is achieved in that a kind of video scaling method based on multipoint-touch-technology, specifically comprises following flow process:
The user carries out at least touch operation of two-way different directions, and the touch signal capture module catches touch operation, generates the touch signal of respective user touch operation;
Touch signal integrated module receives above-mentioned touch signal continuously, and touch signal is integrated, and for the location track variation of each road touch signal, exports preliminary trajectory signal;
The touch signal processing module is filtered above-mentioned preliminary trajectory signal, forms smooth-out trajectory signal;
Be positioned at the touch signal filtering module on the application layer, judge whether the user is in the situation of operation video player, if, then above-mentioned smooth-out trajectory signal is carried out decimation in sequence by constant duration, generate the signal class value that application layer can be identified, and be sent to the response touch-control module, if not, user's operation then do not responded;
The response touch-control module receives signal class value corresponding to each time point, and the signal class value of each time point is converted into video pictures reference position to display and wide high value;
The video scaling module is according to above-mentioned each time point reference position to display and wide high value, and wide high value, the reference position of a upper time point of the current video that obtains from video display module, select video pictures convergent-divergent algorithm that the data of video demonstration are changed;
The picture of video display module after with video scaling played up on display screen, finishes the video scaling of each time point, until the signal class value processing of all time points finishes.
The present invention has following advantage:
The present invention can respond user's multiple point touching, realizes the convergent-divergent requirement of video, can control to realize intuitively the purpose of convergent-divergent according to user's gesture, has improved user's experience, effectively solves the shortcoming that present video player exists aspect video scaling.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structured flowchart of the required module of the inventive method.
Fig. 2 is the schematic diagram that the inventive method is carried out the processing procedure of multi-point touch.
Fig. 3 is the schematic diagram of the processing procedure after the inventive method response touch trajectory.
Fig. 4 is the inventive method is carried out decimation in sequence with constant duration to trajectory signal schematic diagram.
Fig. 5 is the effect schematic diagram of user's operational instances of the inventive method.
[embodiment]
See also Fig. 1 to shown in Figure 5, embodiments of the invention are described in detail.
Such as Fig. 1, the needed module of the inventive method comprises: the touch signal capture module that connects successively, touch signal integrated module, touch signal processing module, touch signal filtering module, response touch-control module, video scaling module, video display module, dotted line frame one is for supporting to carry out the processing procedure of multi-point touch, dotted line frame two is the processing procedure after the support response touch trajectory, realizes the zoom function of video.
Such as Fig. 2, the user carries out at least touch operation of the different directions of two-way, as shown in Figure 2 be followed successively by from left to right a, b, c road touch operation.Described touch signal capture module captures user's a, b, c road touch operation, generates the A road touch signal of respective user a road touch operation, the B road touch signal of respective user b road touch operation, the C road touch signal of respective user c road touch operation.These touch signals are delivered to touch signal integrated module.
Described touch signal integrated module receives above-mentioned A, B, C road touch signal continuously, integrate the touch signal that the continuous touch operation of user produces, location track for each road touch signal changes, integrate, export preliminary trajectory signal, i.e. the preliminary track three of the preliminary track two of the preliminary track one of corresponding A road touch signal, corresponding B road touch signal, corresponding C road touch signal.
Described touch signal processing module is to the filtration of above-mentioned preliminary trajectory signal by existing necessary prediction algorithm, remove some because the touch signal that the deviation of physical equipment causes has larger deviation point in track, begin to take shape smooth-out trajectory signal, be that preliminary track one is treated to level and smooth track one, preliminary track two is treated to level and smooth track two, preliminary track three is treated to level and smooth track three, and these trajectory signals are delivered to touch signal filtering module on the application layer.
In conjunction with Fig. 3, described touch signal filtering module, judge whether the user is in the situation of operation video player, if, then the touch signal filtering module automatically switches to the filtration treatment flow process relevant with video player and processes, after the touch signal filtering module enables through Video Applications, above-mentioned smooth-out trajectory signal is carried out decimation in sequence by constant duration, the concrete time interval can specifically arrange according to the ability of concrete equipment, after this processing, generate the signal class value that application layer can be identified, if the user is not the situation that is in the operation video player, then the touch signal filtering module does not respond user's operation; Such as Fig. 4, take track one, track two as example, take the time interval as Δ t, track one, track two are taken out a little, obtain the signal class value of corresponding each time point, coordinate figure (x, the y) value of namely corresponding each time point of described signal class value.Thereby obtain a class value by track one respectively, track two obtains two class values, and track three obtains three class values.
The response touch-control module of described player receives signal class value corresponding to each time point, and the signal class value of each time point is converted into video pictures reference position to display and wide high value;
The video scaling module of player is according to above-mentioned each time point reference position to display and wide high value, and wide high value, the reference position of a upper time point of the current video that obtains from video display module, select video pictures convergent-divergent algorithm (such as arest neighbors interpolation, bilinear interpolation and cube convolution interpolation etc.) that the data of video demonstration are changed;
The video display module of player is played up the picture behind the video scaling on display screen, finishes the video scaling of each time point, until the signal class value processing of all time points finishes.
For example: step 1, the response touch-control module is at time point t
0Receive the signal class value, convert the frequently needed reference position (x of Zoom module to according to the specific products demand
0, y
0) be worth (w with corresponding wide height
0, h
0); Step 2, described video scaling module receives above-mentioned reference position (x
0, y
0) and wide high value (w
0, h
0), and the parameters such as original wide high value, reference position that obtain current video from video display module, select video pictures convergent-divergent algorithm that the data of video demonstration are carried out the conversion of corresponding resolution; Step 3, the described video display module picture after with video scaling is played up on the display screen of equipment, finishes a time point t
0Convergent-divergent.Repeating step 1 is to step 3, until after the signal class value processing of all time points of user's operation finished, the reference position that last video pictures shows and wide high value were the scaled results that the user finally needs.
Such as Fig. 5, showed that under this method user operates the design sketch of video scaling.Square 1, square 2, square 3 have shown the amplification effect of video pictures; Square 4, square 5, square 6 have shown the effect of dwindling of video pictures.In amplifieroperation, the user can be operated to the subregion that only shows whole video pictures on the display screen.According to the degree of conversion of amplifying, dwindling, can there be the individual time point of at least 2 to N (N is random natural number) centre in concrete operation.
The above, only for preferred embodiment of the present invention, therefore can not limit according to this scope of the invention process, the equivalence of namely doing according to claim of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (1)
1. video scaling method based on multipoint-touch-technology is characterized in that: specifically comprise following flow process:
The user carries out at least touch operation of two-way different directions, and the touch signal capture module catches touch operation, generates the touch signal of respective user touch operation;
Touch signal integrated module receives above-mentioned touch signal continuously, and touch signal is integrated, and for the location track variation of each road touch signal, exports preliminary trajectory signal;
The touch signal processing module is filtered above-mentioned preliminary trajectory signal, forms smooth-out trajectory signal;
Be positioned at the touch signal filtering module on the application layer, judge whether the user is in the situation of operation video player, if, then above-mentioned smooth-out trajectory signal is carried out decimation in sequence by constant duration, generate the signal class value that application layer can be identified, and be sent to the response touch-control module, if not, user's operation then do not responded;
The response touch-control module receives signal class value corresponding to each time point, and the signal class value of each time point is converted into video pictures reference position to display and wide high value;
The video scaling module is according to above-mentioned each time point reference position to display and wide high value, and wide high value, the reference position of a upper time point of the current video that obtains from video display module, select video pictures convergent-divergent algorithm that the data of video demonstration are changed;
The picture of video display module after with video scaling played up on display screen, finishes the video scaling of each time point, until the signal class value processing of all time points finishes.
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| CN102221969B true CN102221969B (en) | 2013-01-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102789359A (en) * | 2012-06-25 | 2012-11-21 | 威盛电子股份有限公司 | Dynamic wallpaper display method, new video information display method and handheld mobile system |
| CN103513926A (en) * | 2012-06-25 | 2014-01-15 | 威盛电子股份有限公司 | Dynamic tablecloth display method, novel video information display method and handheld mobile system |
| CN103294347B (en) * | 2013-06-24 | 2016-09-07 | 贝壳网际（北京）安全技术有限公司 | Operation control method and device for video playing of mobile terminal browser and browser |
| CN104811800A (en) * | 2015-04-24 | 2015-07-29 | 无锡天脉聚源传媒科技有限公司 | Video resolution modification method and apparatus |
| CN105892845A (en) * | 2015-12-14 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Method and device for adjusting video window by multi-point touch |
| CN107390923B (en) * | 2017-06-30 | 2020-05-12 | Oppo广东移动通信有限公司 | Screen false touch prevention method and device, storage medium and terminal |
| CN109085974B (en) * | 2018-07-17 | 2021-02-19 | 广州视源电子科技股份有限公司 | Screen control method, system and terminal equipment |
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| CN1901026A (en) * | 2005-07-19 | 2007-01-24 | 明基电通股份有限公司 | Image amplifying and shrinking method for display on touch control screen |
| CN101493736A (en) * | 2009-03-06 | 2009-07-29 | 苏州瀚瑞微电子有限公司 | Method for implementing scaling of display content on display screen on touch pad |
| CN101950218A (en) * | 2010-09-29 | 2011-01-19 | 南京点面光电有限公司 | Four-wire multi-point touch-controlled touch screen and touch method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1901026A (en) * | 2005-07-19 | 2007-01-24 | 明基电通股份有限公司 | Image amplifying and shrinking method for display on touch control screen |
| CN101493736A (en) * | 2009-03-06 | 2009-07-29 | 苏州瀚瑞微电子有限公司 | Method for implementing scaling of display content on display screen on touch pad |
| CN101950218A (en) * | 2010-09-29 | 2011-01-19 | 南京点面光电有限公司 | Four-wire multi-point touch-controlled touch screen and touch method |
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Address after: 350000 Fuzhou Gulou District, Fujian, software Avenue, building 89, No. 18 Patentee after: FUZHOU ROCKCHIP ELECTRONICS CO., LTD. Address before: 350000 Fuzhou Gulou District, Fujian, software Avenue, building 89, No. 18 Patentee before: Fuzhou Rockchip Semiconductor Co., Ltd. |
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