CN101534383B - Method for enlarging video call visual angle on mobile terminal and mobile terminal thereof - Google Patents
Method for enlarging video call visual angle on mobile terminal and mobile terminal thereof Download PDFInfo
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- CN101534383B CN101534383B CN 200810204370 CN200810204370A CN101534383B CN 101534383 B CN101534383 B CN 101534383B CN 200810204370 CN200810204370 CN 200810204370 CN 200810204370 A CN200810204370 A CN 200810204370A CN 101534383 B CN101534383 B CN 101534383B
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Abstract
The invention relates to a method for enlarging a video call visual angle on a mobile terminal, which comprises the following steps: a, starting a video call, and receiving sent video images by a radio frequency module; b, analyzing the video images received in the step a by a baseband module and judging whether the video images are full screen videos; c, determining a corresponding cutting algorithm by the baseband module according to the analysis result in the step b; d, sending the cutting algorithm determined by the step c to a digital signal processing module by the baseband module, and cutting the video images received in the step a by the digital signal processing module; e, performing twiddle operation on the images cut in the step d by the digital signal processing module; f, sending image data after the processing in the step e to an LCD display module by the digital signal processing module, if the video call continues, turning to the step a, otherwise, turning to a step g; and g, ending the call. The steps from a to f are repeated until the call is ended in the step g. With the method, the function of enlarging the video visual angle on the mobile terminal can be achieved.
Description
Technical field
The present invention relates to a kind of mobile terminal, particularly a kind of method and mobile terminal that guarantees video quality in the mobile terminal of 3G standard.
Background technology
At present 3G standard comprise China TD-SCDMA, come from the WCDMA (Wideband CDMA) of Europe and Japan and come from the CDMA2000 of the U.S..The mobile terminal of 3G standard can be realized video calling at present, can see the residing ambient image of the other side during conversation.At present, due to the restriction of speed, the pixel of the imageing sensor that the TD-SCDMA video calling is used is 300,000 basically, and namely wide and height is respectively 640 and 480 pixels; And terminal shows that the size of the LCD of use is commonly 176 * 220 or 240 * 320 sizes, and therefore, the other side's background image that receives from network needs cutting, and cutting generally has dual mode, and this dual mode often all can reduce the visual angle.LCD size take 176 * 220 is as example, first kind of way: the constant demonstration in horizontal view angle, can only non-ly be displayed in full screen, the Intermediate grey background parts of display screen 1 as shown in Figure 1, it is video image viewing area 11 ', and top or bottom are the icon display areas 13 ' such as shortcut 14 ', and the height that vertical direction shows is (176/640) * 480, compare with original image height 480, the visual angle of vertical direction reduces greatly, the second way: full screen display, full frame finger is accurate full frame, namely except video image, LCD top or bottom are left the sub-fraction space and are used for showing the icons such as shortcut, therefore claim accurate full frame, (describe for convenience as display screen 1 ' in Fig. 2, in dual mode, identical element uses identical label) gray background be video image viewing area 11 ', the bottom is the icon display areas 13 ' such as shortcut 14 ', due to 640/480＞176/220, so in order to be displayed in full screen, at first to laterally reduce, and then convergent-divergent in proportion, can greatly reduce the horizontal view angle like this, owing to being accurate full frame, with the original image ratio, the vertical direction visual angle also will reduce a little.Any that utilizes present aforementioned dual mode all can reduce the visual angle of level or vertical direction greatly, makes the image scaled imbalance of demonstration, greatly affects visual effect.
Summary of the invention
The object of the present invention is to provide a kind of method and mobile terminal that can enlarge video call visual angle in mobile terminal, guarantee the quality of video image.
For achieving the above object, the invention provides a kind of method that enlarges video call visual angle on mobile terminal and reach in order to implement the mobile terminal of the method.The method is image rotation full screen display method, uses the method can realize the function that on mobile terminal, the video visual angle enlarges, and the method comprises the steps:
A begins video calling, and radio-frequency module (Radio Frequence module, i.e. RF module) receives the video image that partner sends over by network;
The video image that receives in b baseband module (Basic Band module, i.e. BB module) analyzing step a, and determine whether full screen video;
The result that c analyzes according to step b, the BB module is determined corresponding trimming algorithm;
The trimming algorithm that the d baseband module is determined the c step sends to digital signal processor module (DigitalSignal Processing module, i.e. DSP module), and the DSP module is carried out cutting to the video image that step a receives;
The image of e DSP module after to the cutting of d step is rotated computing;
F DSP module sends to the LCD display module to the view data through the e step process, if continue video calling, forwards step a to, otherwise forwards step g to;
The g end of conversation.
Repeating step a-f enters step g until finish video calling.
Be used for implementing the mobile terminal of method as mentioned above, it comprises radio-frequency module, baseband module, FLASH module, digital signal processing module and LCD display module; Wherein, radio-frequency module is used for accepting data and sending data to network terminal from network terminal, and accepting and sending one of data is video image; Baseband module is the master controller (CPU) of whole mobile terminal, it is connected mutually with radio-frequency module, FLASH module, digital signal processing module and LCD display module, and one of its function is the video image of coming for the radio-frequency module acceptance of resolving mobile terminal; The FLASH module is used for storage and realizes the computer program that mobile terminal is required; Digital signal processing module and baseband module and LCD module interconnect, and it is used for video image cutting, twiddle operation and control LCD module and shows; The LCD module is used for the demonstration of mobile terminal.
Compared to lower prior art, the present invention has following beneficial effect: the user can freely be switched between different conversation pictures, when the user thinks to watch with great visual angle the partner video, switch to full frame picture, this moment, the user only need to can watch rotation of mobile terminal; When the user want to regulate In Call and send to the parameters such as brightness, contrast of the other side's video image by touch-screen, switchback can show the picture of shortcut, and this moment, the user only needed oppositely rotation of mobile terminal to be got final product again.In addition, during due to video calling, the user generally uses earphone as transmitter and receiver, so the method is solving the little problem of present mobile terminal video call visual angle, can't affect voice call, the user can be in the situation that full screen video be arbitrarily controlled volume.
Description of drawings
Fig. 1 is the schematic diagram of prior art TD-SCDMA mobile terminal video when conversation horizontal view angle during constant the demonstration;
Schematic diagram when when Fig. 2 is the conversation of prior art TD-SCDMA mobile terminal video, standard is displayed in full screen;
When Fig. 3-A is the mobile terminal display video conversation of the specific embodiment of the present invention, show the display screen schematic diagram of shortcut;
When Fig. 3-B is the mobile terminal display video conversation of the specific embodiment of the present invention, the schematic diagram of full screen display
Fig. 4 is the hardware schematic diagram of the mobile terminal of the specific embodiment of the present invention;
Fig. 5 enlarges the schematic flow sheet of the method for video call visual angle in mobile terminal of the present invention;
Fig. 6 is the schematic flow sheet of the embodiment of the method for expansion video call visual angle in mobile terminal of the present invention.
Embodiment
In following embodiment; the mobile terminal of the method for described expansion video call visual angle and enforcement the method is the method and apparatus that meets the TD-SCDMA standard; certainly protection scope of the present invention is not limited to this; other can carry out the transmission of video calling; so long as the variation that can expect easily or replacement; within all should being encompassed in protection scope of the present invention; as to adopt method of the present invention and mobile terminal be WCDMA or CDMA2000 standard system, belongs to the variation that can expect easily.
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Fig. 4 is the hardware connection diagram of this embodiment TD-SCDMA mobile terminal, this mobile terminal comprises baseband module (Basic Band module, be the BB module) 2, radio-frequency module (Radio Frequence module, be the RF module) 3, digital signal processing module (Digital Signal Processing module, i.e. DSP module) 5, LCD display module 7 and FLASH module 9; Wherein, RF module 3 is used for accepting data and sending data to network terminal from network terminal, and accepting and sending one of data is video image; BB module 2 is master controllers (CPU) of whole TD-SCDMA mobile terminal, it is connected mutually with RF module 3, FLASH module 9, DSP module 5 and LCD display module 7, and one of its function is the video image of coming for RF module 3 acceptance of resolving the TD-SCDMA mobile terminal; FLASH module 9 is used for storage and realizes the computer program that the TD-SCDMA mobile terminal is required; DSP module 5 interconnects with BB module 2 and LCD display module 7, and it is used for video image cutting, twiddle operation and control LCD module 7 and shows; LCD display module 7 is used for the demonstration of TD-SCDMA mobile terminal.
As shown in Figure 5, after the beginning video calling, realize that on the TD-SCDMA mobile terminal, video visual angle expansion step is as follows:
A begins video calling, and RF module 3 receives the video image that partner sends over by the TD-SCDMA network;
The video image that b baseband module 2 analyzing step a receive, and determine whether full screen video, if forward step g to;
C baseband module 2 is determined trimming algorithm one;
D digital signal processing module 5 carries out cutting according to the algorithm of step c to the video image that receives in step a;
E LCD display module 7 is brushed screen algorithm one;
F digital signal processing module 5 sends to the view data through step e LCD display module 7 to show, if continue video calling, forwards step a to, otherwise forwards step 1 to;
G baseband module 2 is determined trimming algorithm two;
H digital signal processing module 5 carries out cutting to the video image that step a receives according to the algorithm of step g;
I digital signal processing module 5 is the cutting image rotation in step h;
J LCD display module 7 is brushed screen algorithm two;
K digital signal processing module 5 sends to the view data after processing through step j LCD display module 7 to show, if continue video calling, forwards step a to, otherwise forwards step 1 to;
The l end of conversation.
Repeating step a-k enters step 1 until finish video calling.
In the present embodiment, the display screen size that LCD display module 7 is selected be 240 * 320 (wide: 240, height: 320), Fig. 6 is the concrete performance of the step of this embodiment:
A begins video calling, and radio-frequency module 3 receives the video image that partner sends over by the TD-SCDMA network;
The video image that b baseband module 2 analyzing step a receive, and determine whether full screen video, if forward step g to;
C baseband module 2 is determined first horizontal cutting, then trimming algorithm in proportion;
D digital signal processing module 5 is cut into 240 * 240 sizes according to the algorithm of step c to the video image that step a receives;
E LCD display module 7 is the shortcut icon image of the video image of 240 * 240 sizes and 240 * 120 sizes (On Screen Display; OSD) synthesize the demonstration data of 240 * 320 sizes;
F digital signal processing module 5 sends to the view data through step e LCD display module 7 to show, if continue video calling, forwards step a to, otherwise forwards step g to;
G baseband module 2 is determined wide height trimming algorithm in proportion;
H digital signal processing module 5 is cut into 320 * 240 sizes to the video image that step a receives according to the algorithm of step g;
I digital signal processing module 5 turn 90 degrees the cutting image dextrorotation of 320 * 240 sizes in step h, and (user turn 90 degrees the mobile terminal dextrorotation and watches, referring to Fig. 3-B) at this moment to become 240 * 320 sizes;
The image of 7 pairs of 240 * 320 sizes of j LCD display module is brushed screen algorithm two;
K digital signal processing module 5 sends to the view data after processing through step j LCD display module 7 to show, if continue video calling, forwards step a to, otherwise forwards step 1 to;
The l end of conversation.
Repeating step a-k enters step 1 until finish video calling.
In the present embodiment, the user can freely be switched between different conversation pictures, namely switch between the picture shown in Fig. 3-A and 3-B, when the user thinks to watch with great visual angle the partner video, (Fig. 3-B), this moment, the user only need to get final product rotation of mobile terminal 90 degree to switch to full frame picture on display screen 1; When the user wants to regulate In Call and send to the parameters such as brightness, contrast of the other side's video image by touch-screen, switchback can show picture (Fig. 3-A) of shortcut 14, this moment, display screen 1 top was video image viewing area 11, fraction zone, bottom is for showing the icon display area 13 of shortcut 14, and this moment, the user only needed oppositely rotation of mobile terminal 90 degree to be got final product again.In addition, during due to video calling, the user generally uses earphone as transmitter and receiver, so the method is solving the little problem of present TD-SCDMA mobile terminal video call visual angle, can't affect voice call, the user can be in the situation that full screen video be arbitrarily controlled volume.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (8)
1. enlarge the method for video call visual angle on a mobile terminal, its feature comprises radio-frequency module, baseband module, digital signal processing module, LCD display module and display screen at described mobile terminal, and the method comprises the steps:
A begins video calling, and radio-frequency module receives the video figure that partner sends over by network;
The video image that b baseband module analyzing step a receives, and determine whether full screen video;
The result that c analyzes according to step b, baseband module is determined corresponding trimming algorithm;
The d baseband module sends to digital signal processing module to the trimming algorithm that step c determines, digital signal processing module carries out cutting to the video image that receives in step a;
The image of e digital signal processing module after to the steps d cutting is rotated computing;
The f digital signal processing module sends to treated view data the LCD display module to show, if continue video calling, forwards step a to, otherwise forwards step g to;
The g end of conversation;
Repeating step a-f enters step g until finish video calling.
2. the method for expansion video call visual angle according to claim 1, is characterized in that,, forwards step h:LCD display module to and brush the screen algorithm when the determination result is NO at step b; Then carrying out step f will brush the view data processed of screen and send to the demonstration of LCD display module.
3. the method for expansion video call visual angle according to claim 2, is characterized in that, when the determination result is NO, the clipping algorithm of step c was at step b: first horizontal cutting, then cutting in proportion; The cut-out method of steps d is: the video image that receives in step a is cut into LCD display horizontal size * horizontal size size.
4. the method for expansion video call visual angle according to claim 3, it is characterized in that, when the determination result is NO, the brush screen algorithm in described step h was at step b: the video image that obtains in step c is brushed screen by the LCD display module calculate and synthesize the image of size of LCD display horizontal size * vertically.
5. the method for expansion video call visual angle according to claim 1, is characterized in that, when judgment result is that of step b is, forwards step I to: the LCD display module is brushed the screen algorithm; Then carrying out step f will brush the view data processed of screen and send to the demonstration of LCD display module.
6. the method for expansion video call visual angle according to claim 5, is characterized in that, when judgment result is that of step b was, the clipping algorithm in step c was: wide height is trimming algorithm in proportion; The cut-out method of steps d is: the video image that receives in step a is cut into the vertical size of LCD display * horizontal size size.
7. the method for expansion video call visual angle according to claim 5, it is characterized in that, when judgment result is that of step b was, step e was: digital signal processing module turn 90 degrees the cutting image dextrorotation in steps d, and image becomes LCD display horizontal size * vertical size.
8. the method for the described expansion video call visual angle of any one according to claim 1 to 7, is characterized in that, the video image that in the step a of the method, radio-frequency module receives sends over by the TD-SCDMA network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810204370 CN101534383B (en) | 2008-12-10 | 2008-12-10 | Method for enlarging video call visual angle on mobile terminal and mobile terminal thereof |
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| CN 200810204370 CN101534383B (en) | 2008-12-10 | 2008-12-10 | Method for enlarging video call visual angle on mobile terminal and mobile terminal thereof |
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| CN101534383A CN101534383A (en) | 2009-09-16 |
| CN101534383B true CN101534383B (en) | 2013-05-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110708592B (en) * | 2018-07-09 | 2020-12-29 | 上海交通大学 | Video content complementing and cutting method and system based on user quality evaluation |
| JP2020036166A (en) * | 2018-08-29 | 2020-03-05 | アルパイン株式会社 | Image display unit, image display method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1241860A1 (en) * | 1998-05-08 | 2002-09-18 | Orange Personal Communications Services Ltd. | Mobile videophone |
| CN2739897Y (en) * | 2004-09-30 | 2005-11-09 | 华为技术有限公司 | Mobile terminal with camera function |
| CN1805534A (en) * | 2005-01-12 | 2006-07-19 | 乐金电子(中国)研究开发中心有限公司 | Mobile telephone and method of displaying multiple video images |
| CN1960546A (en) * | 2005-11-03 | 2007-05-09 | 三星电子株式会社 | Video telephony apparatus and method for mobile terminal |
-
2008
- 2008-12-10 CN CN 200810204370 patent/CN101534383B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1241860A1 (en) * | 1998-05-08 | 2002-09-18 | Orange Personal Communications Services Ltd. | Mobile videophone |
| CN2739897Y (en) * | 2004-09-30 | 2005-11-09 | 华为技术有限公司 | Mobile terminal with camera function |
| CN1805534A (en) * | 2005-01-12 | 2006-07-19 | 乐金电子(中国)研究开发中心有限公司 | Mobile telephone and method of displaying multiple video images |
| CN1960546A (en) * | 2005-11-03 | 2007-05-09 | 三星电子株式会社 | Video telephony apparatus and method for mobile terminal |
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