CN101656877A - Improved method for generating animation file by using picture sequence - Google Patents
Improved method for generating animation file by using picture sequence Download PDFInfo
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- CN101656877A CN101656877A CN200810117976A CN200810117976A CN101656877A CN 101656877 A CN101656877 A CN 101656877A CN 200810117976 A CN200810117976 A CN 200810117976A CN 200810117976 A CN200810117976 A CN 200810117976A CN 101656877 A CN101656877 A CN 101656877A
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Abstract
The invention relates to the field of manufacturing animation files, in particular to an improved method for generating an animation file by using a picture sequence. The method comprises the following steps: fragmenting a complete picture sequence; storing a first frame picture of each fragment into the animation file in a complete compression-free mode; for other frame pictures in each fragment,comparing the differences between one frame picture and a previous frame picture in an interframe compression mode; and only recording the difference value of a frame and a previous frame to performfragment compression and decompression so as to achieve the manufacturing of the animation file. The method can conveniently restore any frame pictures and improve the efficiency of the interframe compression.
Description
Technical field
The present invention relates to the making field of animation file, be specifically related to a kind of method of improved generating animation file by using picture sequence.
Background technology
In animation process, the continuous front and back two frame pictures of many videos or animation have very big correlation, and front and back two frame informations change very little in other words.Based on such characteristics, the amount of redundancy between the compression consecutive frame picture just can further improve decrement, reduces compression ratio, so-called inter-frame compression techniques that Here it is.The interframe compression is also referred to as time compression (Temporalcompression), and it compresses by the data between the different frame on the comparison time shaft, and the interframe compression generally can't harm.Frame difference (Framedifferencing) algorithm is a kind of typical time compression method, and it is by comparing the difference between this frame picture and the consecutive frame, and only the minute book frame is adjacent the difference of frame, can significantly reduce data volume like this.
Realize from the method for generating animation file by using picture sequence in the existing inter-frame compression techniques of utilizing, generally be that order according to sequence of pictures reads picture successively, write down the complete content of first pictures, the content and first pictures of second pictures are compared, and discrepant pixel is noted; The 3rd pictures and second pictures are compared, discrepant pixel is noted again, and by that analogy, until the comparison of reading of last picture, the file format that the compression back is generated as shown in Figure 1.Though this mode can guarantee to greatest extent data volume to be compressed, but exist the defective of reading property difference at random.When animation file is read, if will randomly draw the content of M frame picture, must restore 1 successively in order, the content of 2...M-1 frame since the first frame picture, could restore M frame picture according to the difference between M frame picture and the M-1 frame.Like this, when the M value was big, the stand-by period can be long, is unfavorable for rapid positioning operation.
In addition, for the sequence of pictures that is actually used in animation, difference between often adjacent two frames is little, traditional method is to adopt the interframe individual element to compare, find out difference, when dimension of picture was big, most of pixel was identical, and the discriminating conduct meeting of this individual element affects to efficient.
Summary of the invention
The objective of the invention is the defective at prior art, a kind of method of improved generating animation file by using picture sequence is provided, what this method can be more convenient restores the arbitrary frame picture, and can improve the efficient of interframe compression.
Technical scheme of the present invention is as follows: a kind of method of improved generating animation file by using picture sequence, this method is carried out segment processing to a complete sequence of pictures, the mode of every section the first frame picture with complete nothing compression is saved in the animation file, other frame picture in each section is by the mode of interframe compression, the difference between this frame picture and the former frame picture relatively, only the difference of minute book frame and former frame is carried out segmentation compression and decompress(ion), realizes the making of animation file.
Further, the method for aforesaid a kind of improved generating animation file by using picture sequence wherein, is divided into the plurality of sections that frame number equates with described sequence of pictures according to certain fixed integer, and the frame number of final stage is less than or equal to this fixed integer.
Further again, the method for aforesaid a kind of improved generating animation file by using picture sequence wherein, is a benchmark with the length of 10～20 frame pictures, and sequence of pictures is carried out segment processing.
The method of aforesaid a kind of improved generating animation file by using picture sequence, wherein, when the difference between certain frame picture of comparison and the former frame picture, picture is carried out dividing region with fixing size, the corresponding region of comparing two frame pictures respectively, the only discrepant zone of minute book frame and former frame.
Further, the method for aforesaid a kind of improved generating animation file by using picture sequence, wherein, the area size that picture is divided is 8 * 8～32 * 32 pixels.
Further, the method for aforesaid a kind of improved generating animation file by using picture sequence, wherein, when the corresponding region of front and back two frame pictures is compared, pixel value addition with in the zone obtains total weights, directly compares and write down the difference of corresponding region total weight value.
Beneficial effect of the present invention is as follows: because the present invention is in the compression process of sequence of pictures, introduced " middle whole frame " mechanism, when a certain frame picture in the sequence is restored, do not need to restore all frame pictures before successively since the first frame picture, begin to restore but need only from the first frame full picture of affiliated section, this has just obviously improved recovery speed, makes more convenient to operate.In addition,, avoided the comparison of individual element point, under the prerequisite of impact effect not, further improved the efficient that interframe is compressed by introducing " relatively " mechanism by the zone.
Description of drawings
Fig. 1 is the structural representation of the animation file that conventional method generated.
Fig. 2 is each frame correlation schematic diagram of the method for the invention.
Fig. 3 is the structural representation of the animation file of the method for the invention generation.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in detail.
For solve in the prior art sequence of pictures compressed after, defective that can not rapid positioning operation when restoring a certain frame picture, method provided by the present invention is carried out segment processing to a complete sequence of pictures, the mode of every section the first frame picture with complete nothing compression is saved in the animation file, other frame picture in each section is by the mode of interframe compression, the difference between this frame picture and the former frame picture relatively, the difference of minute book frame and former frame only, carry out segmentation compression and decompress(ion), realize the making of animation file.Sequence of pictures generally is to be divided into the plurality of sections that frame number equates according to certain fixed integer, and the frame number of final stage is less than or equal to this fixed integer.This fixed integer is the empirical value of determining according to the length of sequence of pictures, and general length with 10～20 frame pictures is benchmark in the practical application, and sequence of pictures is carried out segment processing.
With a sequence of pictures that has 97 frames is example, with per 10 frame pictures as a segmentation, the complete picture of the 1st, 11,21,31,41,51,61,71,81,91 pictures is saved in the animation file, the correlation of other frame picture as shown in Figure 2, all first pictures with affiliated section is relevant.According to the architecture of the formed animation file of this mode as shown in Figure 3.If, when needs restore the 85th frame picture, only need to extract the full picture of the 81st frame, then according to the difference between the consecutive frame picture, restore the 82nd, 83,84,85 frames successively, can obtain the complete image data of the 85th required frame.If use traditional method to obtain the 85th frame image data, then must begin to restore successively by the 2nd frame, obviously can be slow a lot of on speed.As seen, method provided by the present invention is convenient to the rapid positioning operation of picture very much.
In addition, when the difference that compares between certain frame picture and the former frame picture, the present invention carries out dividing region with picture with fixing size, compares the corresponding region of two frame pictures respectively, only the discrepant zone of minute book frame and former frame.The area size of dividing is to determine according to the size of picture, and general empirical value is 8 * 8～32 * 32 pixels.Concrete grammar relatively is with each 32 the pixel value addition of this corresponding region, to obtain total weights, directly compare total weight value, if difference is arranged, then note difference, promptly the weights of weights that back one frame should the zone and former frame same area subtracts each other difference.When dimension of picture is big, because most of pixel is identical, therefore the method that compares of traditional individual element point just seems too loaded down with trivial details, and this manner of comparison provided by the present invention can significantly be raised the efficiency, and is specially adapted to the making of the animation file of big data quantity.
Method of the present invention is not limited to the embodiment described in the embodiment, and those skilled in the art's technical scheme according to the present invention draws other execution mode, belongs to technological innovation scope of the present invention equally.
Claims (6)
1. the method for an improved generating animation file by using picture sequence, it is characterized in that: this method is carried out segment processing to a complete sequence of pictures, the mode of every section the first frame picture with complete nothing compression is saved in the animation file, other frame picture in each section is by the mode of interframe compression, the difference between this frame picture and the former frame picture relatively, only the difference of minute book frame and former frame is carried out segmentation compression and decompress(ion), realizes the making of animation file.
2. the method for a kind of improved generating animation file by using picture sequence as claimed in claim 1 is characterized in that: described sequence of pictures is divided into the plurality of sections that frame number equates according to certain fixed integer, and the frame number of final stage is less than or equal to this fixed integer.
3. the method for a kind of improved generating animation file by using picture sequence as claimed in claim 2, it is characterized in that: the length with 10～20 frame pictures is benchmark, and sequence of pictures is carried out segment processing.
4. as the method for claim 1 or 2 or 3 described a kind of improved generating animation file by using picture sequence, it is characterized in that: when the difference between certain frame picture of comparison and the former frame picture, picture is carried out dividing region with fixing size, the corresponding region of comparing two frame pictures respectively, the only discrepant zone of minute book frame and former frame.
5. the method for a kind of improved generating animation file by using picture sequence as claimed in claim 4, it is characterized in that: the area size that picture is divided is 8 * 8～32 * 32 pixels.
6. the method for a kind of improved generating animation file by using picture sequence as claimed in claim 4, it is characterized in that: when the corresponding region of front and back two frame pictures is compared, pixel value addition with in the zone obtains total weights, directly compares and write down the difference of corresponding region total weight value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810117976A CN101656877A (en) | 2008-08-19 | 2008-08-19 | Improved method for generating animation file by using picture sequence |
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| CN200810117976A CN101656877A (en) | 2008-08-19 | 2008-08-19 | Improved method for generating animation file by using picture sequence |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930580A (en) * | 2011-09-27 | 2013-02-13 | 微软公司 | Data frame animation |
| WO2014063457A1 (en) * | 2012-10-22 | 2014-05-01 | Huawei Technologies Co., Ltd. | Systems and methods for data representation and transportation |
| CN103986933A (en) * | 2014-04-24 | 2014-08-13 | 小米科技有限责任公司 | Dynamic picture displaying method and device |
| CN104732574A (en) * | 2014-12-30 | 2015-06-24 | 北京像素软件科技股份有限公司 | Compression method and device for role play |
| CN107529098A (en) * | 2014-09-04 | 2017-12-29 | 英特尔公司 | Real-time video is made a summary |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031085A (en) * | 2007-03-30 | 2007-09-05 | 中国联合通信有限公司 | Method for processing mobile-terminal frame carboon |
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2008
- 2008-08-19 CN CN200810117976A patent/CN101656877A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031085A (en) * | 2007-03-30 | 2007-09-05 | 中国联合通信有限公司 | Method for processing mobile-terminal frame carboon |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930580A (en) * | 2011-09-27 | 2013-02-13 | 微软公司 | Data frame animation |
| WO2014063457A1 (en) * | 2012-10-22 | 2014-05-01 | Huawei Technologies Co., Ltd. | Systems and methods for data representation and transportation |
| CN104737518A (en) * | 2012-10-22 | 2015-06-24 | 华为技术有限公司 | Systems and methods for data representation and transportation |
| US9894421B2 (en) | 2012-10-22 | 2018-02-13 | Huawei Technologies Co., Ltd. | Systems and methods for data representation and transportation |
| CN104737518B (en) * | 2012-10-22 | 2018-11-16 | 华为技术有限公司 | The system and method for indicating and transmitting for data |
| CN103986933A (en) * | 2014-04-24 | 2014-08-13 | 小米科技有限责任公司 | Dynamic picture displaying method and device |
| CN103986933B (en) * | 2014-04-24 | 2017-12-12 | 小米科技有限责任公司 | Dynamic picture display methods and device |
| CN107529098A (en) * | 2014-09-04 | 2017-12-29 | 英特尔公司 | Real-time video is made a summary |
| CN104732574A (en) * | 2014-12-30 | 2015-06-24 | 北京像素软件科技股份有限公司 | Compression method and device for role play |
| CN104732574B (en) * | 2014-12-30 | 2017-12-12 | 北京像素软件科技股份有限公司 | The compression method and device of a kind of role play |
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Application publication date: 20100224 |