CN102523390A - Automatic aspect ratio control method based on AFD (automatic feeding device) - Google Patents
Automatic aspect ratio control method based on AFD (automatic feeding device) Download PDFInfo
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- CN102523390A CN102523390A CN2011104061212A CN201110406121A CN102523390A CN 102523390 A CN102523390 A CN 102523390A CN 2011104061212 A CN2011104061212 A CN 2011104061212A CN 201110406121 A CN201110406121 A CN 201110406121A CN 102523390 A CN102523390 A CN 102523390A
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Abstract
The invention discloses an automatic aspect ratio control method based on an AFD (automatic feeding device), which comprises the steps of calculating zoom region rectangles of a source program image and a target program image; zooming a zoom region rectangle data size of the source program image to be equal to that of zoom region rectangle data of the target program image; filling the zoomed zoom region rectangle data of the source program image into the target program image; and filling parts except the part of the zoom region rectangle in the target program image with black, the filled parts serve as a caption region. The method disclosed by the invention carries out aspect ratio adjusting on video file data based on AFD information, completely covers a whole picture on television combined with the caption region, avoids phenomenon that the caption contents are overlapped with video program images or self translated captions and the like, flexibly adjusts the aspect ratio of the video image files to be combined with the caption region, so as to avoid the cases that the captain region is over-wide or over-narrow and the like, and ensure the viewing effect of audiences.
Description
Technical field
The present invention relates to a kind of automatic aspect ration control method based on AFD.
Background technology
When TV station hard disk digital video programs was broadcasted, a left side that often needs stack end row to move about flew, the right side flies captions, bulletin, TV guide or stock information etc., usually according to spectators' the custom of watching, caption content is arranged at the screen below.Yet, traditional video frequency program caption content normal with the video frequency program doubling of the image, perhaps with video image in caption etc. itself overlapping, cause normally identification caption content of spectators, influence spectators' rating experience.
In order to solve this phenomenon, the teletrician has been caption content specialized designs caption area, white captions are presented in the regional background of black, can clearly demonstrate caption content, are convenient to spectators and watch and discern.Yet; Traditional caption area setting is controlled through the aspect ration of video file; Be provided with by 4:3 or two kinds of fixing video image file aspect rations of 16:9; Can't adjust the combination of the aspect ration and the caption area of video image file flexibly, situation such as the caption area width is wide or narrow often occur, directly influence the visual effect of TV programme.
Summary of the invention
The objective of the invention is to solve the deficiency of existing control method; The method that provides a kind of novel automatic aspect ration to control based on AFD; Overcome the normal and video frequency program doubling of the image of traditional video frequency program caption content; Perhaps with video image in caption etc. itself overlapping, cause normally identification caption content of spectators; Traditional caption area setting is controlled through the aspect ration of video file; Be provided with by 4:3 or two kinds of fixing video image file aspect rations of 16:9; Can't adjust the combination of the aspect ration and the caption area of video image file flexibly; Situation such as the caption area width is wide or narrow often occur, directly influenced the shortcomings such as visual effect of TV programme.
The objective of the invention is to realize through following technical scheme: based on the automatic aspect ration control method of AFD, it may further comprise the steps:
(1) video image height, width and the AFD information calculations according to the source program goes out program image zoom zone, source rectangle rectSource;
(2) the zoom area rectangle rectDest that calculates target program image according to the height and the width information of target program image;
(3) data of source program image zoom zone rectangle rectSource are scaled the size of data of the zoom area rectangle rectDest of target program image;
(4) data with program image zoom zone, the source rectangle rectSource behind the convergent-divergent are filled in the target program image;
(5) be black with partially filled beyond the zoom area rectangle rectDest in the target program image, as caption area.
The present invention also comprises on the video and moves shift step, if promptly source program image zoom zone rectangle rectSource has black surround up and down, during broadcast with the move up height of a caption area of image.
The present invention comprises also that a video contracts and moves shift step, if promptly source program image zoom zone rectangle rectSource does not have black surround up and down, during broadcast image is upwards contracted and moves the height of a caption area.
The invention has the beneficial effects as follows: the video file data are carried out the aspect ration adjustment based on AFD information; Intactly cover whole television image in conjunction with caption area; Caption content and overlapping phenomenons such as video frequency program image or caption own have been stopped; Adjust the combination of the aspect ration and the caption area of video image file flexibly, avoid occurring the generation of situation such as the caption area width is wide or narrow, guaranteed spectators' viewing effect.
Description of drawings
Fig. 1 is an operational flowchart of the present invention.
Embodiment
Further describe technical scheme of the present invention below in conjunction with accompanying drawing: as shown in Figure 1, based on the automatic aspect ration control method of AFD, it may further comprise the steps:
(1) video image height, width and the AFD information calculations according to the source program goes out program image zoom zone, source rectangle rectSource;
(2) the zoom area rectangle rectDest that calculates target program image according to the height and the width information of target program image;
(3) data of source program image zoom zone rectangle rectSource are scaled the size of data of the zoom area rectangle rectDest of target program image;
(4) data with program image zoom zone, the source rectangle rectSource behind the convergent-divergent are filled in the target program image;
(5) be black with partially filled beyond the zoom area rectangle rectDest in the target program image, as caption area.
Also comprise on the video based on the automatic aspect ration control method of AFD and to move shift step, if promptly source program image zoom zone rectangle rectSource has black surround up and down, during broadcast with the move up height of a caption area of image; It comprises also that a video contracts and moves shift step, if promptly source program image zoom zone rectangle rectSource does not have black surround up and down, during broadcast image is upwards contracted and moves the height of a caption area.
Claims (3)
1. based on the automatic aspect ration control method of AFD, it is characterized in that: it may further comprise the steps:
(1) video image height, width and the AFD information calculations according to the source program goes out program image zoom zone, source rectangle rectSource;
(2) the zoom area rectangle rectDest that calculates target program image according to the height and the width information of target program image;
(3) data of source program image zoom zone rectangle rectSource are scaled the size of data of the zoom area rectangle rectDest of target program image;
(4) data with program image zoom zone, the source rectangle rectSource behind the convergent-divergent are filled in the target program image;
(5) be black with partially filled beyond the zoom area rectangle rectDest in the target program image, as caption area.
2. the automatic aspect ration control method based on AFD according to claim 1; It is characterized in that: it also comprises on the video moves shift step; If promptly rectangle rectSource in source program image zoom zone has black surround up and down, during broadcast with the move up height of a caption area of image.
3. the automatic aspect ration control method based on AFD according to claim 1; It is characterized in that: it comprises also that a video contracts and moves shift step; If promptly rectangle rectSource in source program image zoom zone does not have black surround up and down, during broadcast image upwards contracted and move the height of a caption area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104061212A CN102523390A (en) | 2011-12-08 | 2011-12-08 | Automatic aspect ratio control method based on AFD (automatic feeding device) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104061212A CN102523390A (en) | 2011-12-08 | 2011-12-08 | Automatic aspect ratio control method based on AFD (automatic feeding device) |
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| CN102523390A true CN102523390A (en) | 2012-06-27 |
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| CN2011104061212A Pending CN102523390A (en) | 2011-12-08 | 2011-12-08 | Automatic aspect ratio control method based on AFD (automatic feeding device) |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984476A (en) * | 2012-12-12 | 2013-03-20 | 深圳创维－Rgb电子有限公司 | Widescreen self-adapting image processing method and device |
| CN104836962A (en) * | 2015-05-07 | 2015-08-12 | 广东欧珀移动通信有限公司 | Photo processing method and apparatus |
| WO2015196462A1 (en) * | 2014-06-27 | 2015-12-30 | Thomson Licensing | Method and device for displaying a video sequence |
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| CN1549584A (en) * | 2003-05-15 | 2004-11-24 | 乐金电子（沈阳）有限公司 | Controlling apparatus for TV secondary pictures and controlling method thereof |
| CN1612584A (en) * | 2003-10-31 | 2005-05-04 | 株式会社东芝 | Image reading method and apparatus, image forming method and apparatus |
| WO2010143106A1 (en) * | 2009-06-08 | 2010-12-16 | Koninklijke Philips Electronics N.V. | Device and method for processing video data |
| EP2309764A1 (en) * | 2009-09-16 | 2011-04-13 | Koninklijke Philips Electronics N.V. | 3D screen size compensation |
| US20110262055A1 (en) * | 2008-12-23 | 2011-10-27 | Koninklijke Philips Electronics N.V. | Image scaling curve generation |
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2011
- 2011-12-08 CN CN2011104061212A patent/CN102523390A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549584A (en) * | 2003-05-15 | 2004-11-24 | 乐金电子（沈阳）有限公司 | Controlling apparatus for TV secondary pictures and controlling method thereof |
| CN1612584A (en) * | 2003-10-31 | 2005-05-04 | 株式会社东芝 | Image reading method and apparatus, image forming method and apparatus |
| US20110262055A1 (en) * | 2008-12-23 | 2011-10-27 | Koninklijke Philips Electronics N.V. | Image scaling curve generation |
| WO2010143106A1 (en) * | 2009-06-08 | 2010-12-16 | Koninklijke Philips Electronics N.V. | Device and method for processing video data |
| EP2309764A1 (en) * | 2009-09-16 | 2011-04-13 | Koninklijke Philips Electronics N.V. | 3D screen size compensation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984476A (en) * | 2012-12-12 | 2013-03-20 | 深圳创维－Rgb电子有限公司 | Widescreen self-adapting image processing method and device |
| CN102984476B (en) * | 2012-12-12 | 2016-03-23 | 深圳创维－Rgb电子有限公司 | Widescreen adapting to image processing method and device |
| WO2015196462A1 (en) * | 2014-06-27 | 2015-12-30 | Thomson Licensing | Method and device for displaying a video sequence |
| CN104836962A (en) * | 2015-05-07 | 2015-08-12 | 广东欧珀移动通信有限公司 | Photo processing method and apparatus |
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Application publication date: 20120627 |