CN102857702A - Video production method and system - Google Patents
Video production method and system Download PDFInfo
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- CN102857702A CN102857702A CN2012103505028A CN201210350502A CN102857702A CN 102857702 A CN102857702 A CN 102857702A CN 2012103505028 A CN2012103505028 A CN 2012103505028A CN 201210350502 A CN201210350502 A CN 201210350502A CN 102857702 A CN102857702 A CN 102857702A
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Abstract
The invention discloses a video production method which includes steps of converting received images used for producing video into corresponding YUV images; generating thumbnails corresponding to the YUV images, then generating a preview page containing the YUV images and displaying the preview page, receiving a reconversion command to the optional thumbnail via the preview page, and reconverting the images corresponding to the thumbnails into the YUV images; and producing the YUV images into video when receiving a video production command. The invention further provides a video production system correspondingly. The video production method and the video production system are adaptable to various image formats and applicable to production of ultrahigh-resolution video, and have the advantages of small occupation of storage space, high timeliness and high production speed.
Description
Technical field
The present invention relates to the video production field, particularly relate to a kind of video creating method, and a kind of video production system.
Background technology
The video production instrument is more at present, but all exists some shortcomings: traditional video production software for same video, can only import the image of same form when carrying out the video conversion; During making, automatically carry out the conversion of video after the user imports image, the user just knows whether by displaying video and has distortion after video production is finished.Image for super large resolution, i.e. above images of 4 times of high definition resolution, every image just has several ten million even more than one hundred million pixels, video production speed is slow, if and after completing, just find mistake, then need again carry out video production, cause upper huge waste, operating efficiency of time lower.
Summary of the invention
Based on this, the invention provides a kind of video creating method and system, the making that can be fit to various picture formats, take few, the ageing height of memory space, manufacturing speed is fast, is applicable to the super large resolution video.
A kind of video creating method comprises the steps:
The image transitions of being used for of receiving being made video be the YUV image of correspondence;
Generate thumbnail corresponding to described YUV image, regeneration comprises the preview page of all described YUV images and shows, by the again conversion instruction of described preview page reception to arbitrary described thumbnail, the described image that described thumbnail is corresponding is converted to described YUV image again;
When receiving the video production instruction, all described YUV image makings are become video.
A kind of video production system comprises the first modular converter, the second modular converter and makes module;
The image transitions that is used for the making video that described the first modular converter is used for receiving is corresponding YUV image;
Described the second modular converter is used for generating thumbnail corresponding to described YUV image, regeneration comprises the preview page of all described YUV images and shows, by the again conversion instruction of described preview page reception to arbitrary described thumbnail, the described image that described thumbnail is corresponding is converted to described YUV image again;
Described making module is used for when receiving the video production instruction all described YUV image makings being become video.
Video creating method of the present invention and system, be converted to the YUV image by making the required image unification of video, the image of various forms be can be applicable to, and for the super large image in different resolution, the size that takes up room, raising manufacturing speed that the YUV image can reduce image in a large number are converted to; The preview screen that comprises all thumbnails by generation can allow the user check rapidly the whether distortion of YUV image of conversion, is convenient to original image is changed again; Carry out video production after definite every YUV image is all changed successfully, the error rate of video production greatly reduces, the operating efficiency Effective Raise again.
Description of drawings
Fig. 1 is video creating method of the present invention schematic flow sheet in one embodiment.
Fig. 2 is the in one embodiment schematic diagram of image block of video creating method of the present invention.
Fig. 3 is the in one embodiment schematic diagram of image packets of video creating method of the present invention.
Fig. 4 is the in one embodiment schematic diagram of image transitions of video creating method of the present invention.
Fig. 5 is video production system of the present invention structural representation in one embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As shown in Figure 1, be video creating method of the present invention schematic flow sheet in one embodiment, comprise the steps:
S11, the image transitions that is used for the making video that will receive are corresponding YUV image;
The YUV image is easy to compression, makes things convenient for transmission and processing, display speed is very fast; To make first in this step the required image of video and all transfer the YUV image to; Every image here can comprise the image of various forms, such as BMP image, JPG image, TGA image etc., various images is all unified to be converted to yuv format, can greatly reduce the storage area; General ultrahigh resolution image to take the storage area all very large, such as the ultrahigh resolution BMP image of 8k*4k, its memory space that takies has just reached 96M, and after being converted into yuv format, memory space is about 48M, half has been reduced in shared space; The process that is converted to the YUV image can be utilized existing various YUV image conversion method, and specifically it will not go into details.
For step S11, in a preferred embodiment, can specifically comprise the steps:
Step a1, every described image is divided into two image blocks at least;
Step b1, when being corresponding YUV image with described image transitions, each the described image block that simultaneously described image is comprised according to default YUV conversion method carries out the yuv format conversion, generates described YUV image;
For the super large image in different resolution, its image resolution ratio is at least 7680*4320, and pixel is up to more than 3,000 ten thousand, if begin it is carried out the YUV conversion according to conventional method first pixel from this image, then conversion speed is very slow; Therefore can divide this image, capable as can image being divided N along the Width of image, along the short transverse of image image is divided the M row, image averaging is divided into N*M image block; Obtain the pixel coordinate of pixel corresponding to four summits of each image block, when image is changed, can carry out the yuv format conversion to each image block simultaneously according to the pixel coordinate on four summits of each image block, can greatly improve the conversion speed of image;
As shown in Figure 2, in one embodiment, ultrahigh resolution image to a 8k*4k is processed, first this image averaging is divided into 4 image blocks, the resolution of each image block is 4k*2k, when carrying out the YUV image transitions, simultaneously each image block is changed, then the conversion speed of this image can promote 4 times;
The division of image block can specifically arrange according to the resolution of every image, and image block is more, and the conversion speed of image is faster, but also higher to the hardware requirement of conversion equipment, practical operation can set up on their own as required.
In step S11, in a preferred embodiment, also can specifically comprise the steps:
Step a2, all described images are divided into two groups of images at least, the described image that described every group of image comprised is numbered;
Step b2, when being corresponding YUV image with described image transitions, first image that comprises from described every group of image simultaneously according to described numbering begins to carry out the yuv format conversion, generates successively corresponding described YUV image;
When generally carrying out video production, required image is all very many; Can all image averagings be divided into groups according to the quantity of image, every group of image that comprises some is numbered every the image that comprises in every group of image; When carrying out the YUV image transitions, first image from every group of image begins to carry out the yuv format conversion, generates successively the YUV image; Because each group image all carries out simultaneously when carrying out image transitions, but Effective Raise image transitions speed;
As shown in Figure 3, in one embodiment, make the required image one of video and have 400 images, 400 image averagings are divided into 4 groups, every group comprises 100 images, every image is numbered; When carrying out the YUV image transitions, successively every image in every group of image is changed; Because the conversion of 4 groups of images is carried out simultaneously, conversion speed is faster;
Image packets is more, and the conversion speed of image is faster; Certainly, also can divide into groups simultaneously to all images simultaneously and divide block operations, as shown in Figure 4, in one embodiment, 400 image averagings required to all video productions are divided into 4 groups, every group of 100 images simultaneously every image averaging in every group of image is divided into 4 image blocks, so the speed of image transitions can improve significantly.
S12, thumbnail corresponding to the described YUV image of generation, regeneration comprises the preview page of all described YUV images and shows, by the again conversion instruction of described preview page reception to arbitrary described thumbnail, the described image that described thumbnail is corresponding is converted to described YUV image again; After in step S11, generating the YUV image, can utilize Image Compression that the YUV image is compressed, generate and every thumbnail that described YUV image is corresponding; Regeneration comprises the preview screen of all described thumbnails and shows, the video production personnel can all thumbnails of preview, check rapidly every YUV image whether convert failed, whether distortion appears, thereby reduce the error rate that subsequent video is made;
If the video production personnel find certain hypertonic sketch map and distortion occurs, can send conversion instruction, by the again conversion instruction of described preview page acceptance to arbitrary described thumbnail; According to described again conversion instruction, be the YUV image with this image transitions again; Before video production image is carried out the distortion inspection with respect to traditional video creating method, again carry out video production when discovery is slipped up after video production is finished, the present invention can increase work efficiency greatly.
S13, when receiving the video production instruction, all described YUV image makings are become video;
After all images are all changed the YUV image, then can carry out video production; Owing to the image that video production is required is generally all more, if comprise the super large image in different resolution, the error rate of image transitions can be larger, therefore passing through step S12, after definite every YUV image can both be changed successfully, carry out again the video conversion, can guarantee that the distortion rate of changing rear video significantly reduces;
After all YUV images of video production personnel inspection are errorless, determine to begin video production, then the making video instructions by receiving becomes video with all YUV image makings; Because all through checking, the video distortion rate is low for all YUV images of video production; And image transitions is the method for video, specifically can adopt existing various video creating method, does not repeat them here.
Accordingly, the present invention also provides a kind of video production system, as shown in Figure 5, comprises the first modular converter 51, the second modular converter 52 and makes module 53;
The image transitions that is used for the making video that described the first modular converter 51 is used for receiving is corresponding YUV image;
The YUV image is easy to compression, makes things convenient for transmission and processing, display speed is very fast; In this module, will make first the required image of video and all transfer the YUV image to; Every image here can comprise the image of various forms, such as BMP image, JPG image, TGA image etc., various images is all unified to be converted to yuv format, can greatly reduce the storage area; General ultrahigh resolution image to take the storage area all very large, such as the ultrahigh resolution BMP image of 8k*4k, its memory space that takies has just reached 96M, and after being converted into yuv format, memory space is about 48M, half has been reduced in shared space; The process that is converted to the YUV image can be utilized existing various YUV image conversion method, and specifically it will not go into details.
In a preferred embodiment, described the first modular converter 51 can specifically comprise piecemeal module and the first image generation module;
Described piecemeal module is used for every described image is divided into two image blocks at least;
Described the first image generation module is used for when with described image transitions being the YUV image of correspondence, and each the described image block that simultaneously described image is comprised according to default YUV conversion method carries out the yuv format conversion, generates described YUV image.
For the super large image in different resolution, its image resolution ratio is at least 7680*4320, and pixel is up to more than 3,000 ten thousand, if begin it is carried out the YUV conversion according to conventional method first pixel from this image, then conversion speed is very slow; Therefore can divide this image, capable as can image being divided N along the Width of image, along the short transverse of image image is divided the M row, image averaging is divided into N*M image block; Obtain the pixel coordinate of pixel corresponding to four summits of each image block, when image is changed, can carry out the yuv format conversion to each image block simultaneously according to the pixel coordinate on four summits of each image block, can greatly improve the conversion speed of image;
The division of image block can specifically arrange according to the resolution of every image, and image block is more, and the conversion speed of image is faster, but also higher to the hardware requirement of conversion equipment, practical operation can set up on their own as required;
In a preferred embodiment, described the first modular converter 51 also can specifically comprise grouping module and the second image generation module;
Described grouping module is used for all described images are divided into two groups of images at least, and the described image that described every group of image comprised is numbered;
Described the second image generation module is used for when with described image transitions being the YUV image of correspondence, and first image that comprises from described every group of image simultaneously according to described numbering begins to carry out the yuv format conversion, generates successively corresponding described YUV image.
When generally carrying out video production, required image is all very many; Can all image averagings be divided into groups according to the quantity of image, every group of image that comprises some is numbered every the image that comprises in every group of image; When carrying out the YUV image transitions, first image from every group of image begins to carry out the yuv format conversion, generates successively the YUV image; Because each group image all carries out simultaneously when carrying out image transitions, but Effective Raise image transitions speed;
Image packets is more, and the conversion speed of image is faster; Certainly, also can divide into groups to all images simultaneously and divide block operations, the speed of image transitions can significantly improve.
Described the second modular converter 52 is used for generating thumbnail corresponding to described YUV image, regeneration comprises the preview page of all described YUV images and shows, by the again conversion instruction of described preview page reception to arbitrary described thumbnail, the described image that described thumbnail is corresponding is converted to described YUV image again;
After in the first modular converter 51, generating the YUV image, can utilize Image Compression that the YUV image is compressed, generate and every thumbnail that described YUV image is corresponding; Regeneration comprises the preview screen of all described thumbnails and shows, the video production personnel can all thumbnails of preview, check rapidly every YUV image whether convert failed, whether distortion appears, thereby reduce the error rate that subsequent video is made;
If the video production personnel find certain hypertonic sketch map and distortion occurs, can send conversion instruction, by the again conversion instruction of described preview page acceptance to arbitrary described thumbnail; According to described again conversion instruction, be the YUV image with this image transitions again; Before video production image is carried out the distortion inspection with respect to traditional video creating method, again carry out video production when discovery is slipped up after video production is finished, the present invention can increase work efficiency greatly.
Described making module 53 is used for when receiving the video production instruction all described YUV image makings being become video.
After all images are all changed the YUV image, then can carry out video production; Owing to the image that video production is required is generally all more, if comprise the super large image in different resolution, the error rate of image transitions can be larger, therefore passing through the second modular converter 52, after definite every YUV image can both be changed successfully, carry out again the video conversion, can guarantee that the distortion rate of changing rear video significantly reduces;
After all YUV images of video production personnel inspection are errorless, determine to begin video production, then the making video instructions by receiving becomes video with all YUV image makings; Because all through checking, the video distortion rate is low for all YUV images of video production; And image transitions is the method for video, specifically can adopt existing various video creating method, does not repeat them here.
Video creating method of the present invention and system, be converted to the YUV image by making the required image unification of video, the image of various forms be can be applicable to, and for the super large image in different resolution, the size that takes up room, raising manufacturing speed that the YUV image can reduce image in a large number are converted to; The preview screen that comprises all thumbnails by generation can allow the user check rapidly the whether distortion of YUV image of conversion, is convenient to original image is changed again; Carry out video production after definite every YUV image is all changed successfully, the error rate of video production greatly reduces, the operating efficiency Effective Raise again.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (6)
1. a video creating method is characterized in that, comprises the steps:
The image transitions of being used for of receiving being made video be the YUV image of correspondence;
Generate thumbnail corresponding to described YUV image, regeneration comprises the preview page of all described YUV images and shows, by the again conversion instruction of described preview page reception to arbitrary described thumbnail, the described image that described thumbnail is corresponding is converted to described YUV image again;
When receiving the video production instruction, all described YUV image makings are become video.
2. video creating method according to claim 1 is characterized in that, the described image transitions that is used for the making video that will receive specifically comprises for the step of corresponding YUV image:
Every described image is divided into two image blocks at least;
When with described image transitions being the YUV image of correspondence, each the described image block that simultaneously described image is comprised according to default YUV conversion method carries out the yuv format conversion, generates described YUV image.
3. video creating method according to claim 1 is characterized in that, describedly will make the step that every required image of video all is converted to corresponding YUV image and specifically comprise:
All described images are divided into two groups of images at least, and the described image that described every group of image comprised is numbered;
When with described image transitions being the YUV image of correspondence, first image that comprises from described every group of image simultaneously according to described numbering begins to carry out the yuv format conversion, generates successively corresponding described YUV image.
4. a video production system is characterized in that, comprises the first modular converter, the second modular converter and makes module;
The image transitions that is used for the making video that described the first modular converter is used for receiving is corresponding YUV image;
Described the second modular converter is used for generating thumbnail corresponding to described YUV image, regeneration comprises the preview page of all described YUV images and shows, by the again conversion instruction of described preview page reception to arbitrary described thumbnail, the described image that described thumbnail is corresponding is converted to described YUV image again;
Described making module is used for when receiving the video production instruction all described YUV image makings being become video.
5. video production system according to claim 4 is characterized in that, described the first modular converter specifically comprises piecemeal module and the first image generation module;
Described piecemeal module is used for every described image is divided into two image blocks at least;
Described the first image generation module is used for when with described image transitions being the YUV image of correspondence, and each the described image block that simultaneously described image is comprised according to default YUV conversion method carries out the yuv format conversion, generates described YUV image.
6. video production system according to claim 4 is characterized in that, described the first modular converter specifically comprises grouping module and the second image generation module;
Described grouping module is used for all described images are divided into two groups of images at least, and the described image that described every group of image comprised is numbered;
Described the second image generation module is used for when with described image transitions being the YUV image of correspondence, and first image that comprises from described every group of image simultaneously according to described numbering begins to carry out the yuv format conversion, generates successively corresponding described YUV image.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107018431A (en) * | 2016-01-27 | 2017-08-04 | 上海交通大学 | It is a kind of based on media self attributes to support storage and the transmission mechanism of space separating |
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| CN1921612A (en) * | 2005-08-26 | 2007-02-28 | 萧学文 | Method and system for automatic video production |
| CN101909178A (en) * | 2009-06-02 | 2010-12-08 | Lg电子株式会社 | Image display and method of operation thereof |
| JP2011188056A (en) * | 2010-03-05 | 2011-09-22 | Panasonic Corp | Imager |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1921612A (en) * | 2005-08-26 | 2007-02-28 | 萧学文 | Method and system for automatic video production |
| CN101909178A (en) * | 2009-06-02 | 2010-12-08 | Lg电子株式会社 | Image display and method of operation thereof |
| JP2011188056A (en) * | 2010-03-05 | 2011-09-22 | Panasonic Corp | Imager |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107018431A (en) * | 2016-01-27 | 2017-08-04 | 上海交通大学 | It is a kind of based on media self attributes to support storage and the transmission mechanism of space separating |
| CN107018431B (en) * | 2016-01-27 | 2019-07-12 | 上海交通大学 | A kind of storage and transmission method for supporting space separating based on media self attributes |
| CN110225371A (en) * | 2016-01-27 | 2019-09-10 | 上海交通大学 | A kind of storage and transmission method for supporting space separating based on media self attributes |
| CN110225371B (en) * | 2016-01-27 | 2020-11-06 | 上海交通大学 | Storage and transmission method for supporting space blocking based on media self-attribute |
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