CN106530216B - Full-view image document handling method and system - Google Patents
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- CN106530216B CN106530216B CN201610967538.9A CN201610967538A CN106530216B CN 106530216 B CN106530216 B CN 106530216B CN 201610967538 A CN201610967538 A CN 201610967538A CN 106530216 B CN106530216 B CN 106530216B
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- 230000009467 reduction Effects 0.000 claims abstract description 8
- 230000006870 function Effects 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000011218 segmentation Effects 0.000 claims description 12
- 238000003709 image segmentation Methods 0.000 claims description 3
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/06—Topological mapping of higher dimensional structures onto lower dimensional surfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4023—Scaling of whole images or parts thereof, e.g. expanding or contracting based on decimating pixels or lines of pixels; based on inserting pixels or lines of pixels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4038—Image mosaicing, e.g. composing plane images from plane sub-images
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Abstract
The invention discloses a kind of full-view image document handling methods and system, technical solution to be: creating the longitude and latitude image of certain the ratio of width to height；Percentage between two wefts is set, calculates the width of every row in longitude and latitude image line by line, is longitude and latitude image by panoramic picture bilinear interpolation；The compression storage image for creating certain the ratio of width to height, longitude and latitude image is split, and is spliced into complete compression storage image；The panoramic picture for reduction of certain the ratio of width to height is finally created, searches corresponding mapping position on compression storage image line by line, bilinear interpolation is reduced to panoramic picture.Full-view image document handling method of the invention and system can reduce data volume of the full-view image file in storage, transmission process, improve the compression, storage and efficiency of transmission of panorama image file, bandwidth resources are effectively utilized.
Description
Technical field
The invention belongs to file process field, it is related to a kind of document handling method and system, more particularly to a kind of panorama
Image file processing method and system.
Background technique
In recent years, increasingly wider, the storage of the following panoramic video file is applied in pan-shot in social life
Amount quickly becomes larger as the resolution ratio of various capture apparatus improves, and existing wire/radio network is difficult to carry high-resolution
Panoramic video file transmission under format.
Panoramic video file is usually to carry out storage transmission according to the ratio of width to height longitude and latitude image of 2:1, has amount of storage big,
Transmit the features such as slow.If reducing storage volume and accelerating transmission speed, it is necessary to compress panoramic video file, tradition
Compression method be that image is simply subjected to horizontal down sample, obtain the compression image of size 1:1, this compression scheme sacrifice
The details of panoramic picture, it is to panoramic picture mass loss excessive.
Therefore, it is necessary to propose improvement project in view of the deficiencies of the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of full-view image document handling method and systems, solve panorama in the prior art
The problem that image file amount of storage volume is excessive, transmission speed is excessively slow.
Full-view image document handling method of the invention includes:
A, panoramic picture is converted into latitude image；
B, pair warp and weft degree image is split and is stored as compression storage image；
It C, is panoramic picture by compression storage image restoring.
Further, step A further comprises: the longitude and latitude image of certain the ratio of width to height is created, setting longitude and latitude image
Panoramic picture bilinear interpolation is longitude and latitude figure by the percentage percent of longitude and latitude image shared by area between two wefts
Picture.
Further, step B further comprises: the width and height of setting compression storage image, by longitude and latitude image
Left-half copies to the corresponding position of compression storage image, and the right half part of longitude and latitude image is split and is moved to compression and is deposited
Store up the corresponding position of image.
Further, step C further comprises: creating the panoramic picture for reduction of certain the ratio of width to height, is pressing line by line
Mapping position is found on contracting storage image, bilinear interpolation restores panoramic picture.
Further, according to functionTwo wefts are calculated in longitude and latitude
Position topHeight and bottomHeight in image are spent, wherein height is the height of longitude and latitude image.
Further, according to function
Calculate the compressed width length of longitude and latitude image current line, wherein row indicates that longitude and latitude image row row, width are
The width of longitude and latitude image.
Further, according to function
Search mapping point point (θ, φ) of the coordinate points (col, row) on longitude and latitude image on panoramic picture.
Further, according to functionCalculate the width ow and height of compression storage image
Degree oh(is not shown in the figure).
Further, according to function
Coordinate points (col, row) on longitude and latitude image are mapped to the coordinate points (i, j) on compression storage image.
Further, according to function
Coordinate points (i, j) of the coordinate points (ni, nj) of longitude and latitude image on compression storage image are searched line by line,
Further, according to function
Compression storage image bilinear interpolation is reduced to panoramic picture, wherein (x, y) is the point restored on panoramic picture.
Further, panoramic picture therein can also be panoramic video.
The invention also provides a kind of full-view image document handling systems, including image conversion module, segmentation module, splicing
Memory module and image restoring module, in which:
Panoramic picture is converted into latitude image by image conversion module；
Segmentation module connect with image conversion module, reception image conversion module convert after longitude and latitude image, and will be through
Latitude image segmentation is at video data block；
Splicing memory module connect with segmentation module, and the video data block after resume module is divided in reception, and by picture number
According to block splicing, it is stored as compression storage image；
Image restoring module with splicing memory module connect, receive splicing memory module treated compression store image,
It is panoramic picture by compression storage image restoring.
Further, image conversion module creates the longitude and latitude image of certain the ratio of width to height, and two of longitude and latitude image are arranged
Panoramic picture bilinear interpolation is longitude and latitude image by the percentage percent of longitude and latitude image shared by area between weft.
Further, segmentation module presets the width and height of compression storage image, splices memory module for longitude and latitude
The left-half of degree image copies to the corresponding position of compression storage image, and the right half part of longitude and latitude image is divided and moved
To the corresponding position of compression storage image.
Further, the panoramic picture for reduction of certain the ratio of width to height is pre-created in image restoring module, and compression is deposited
Storage image bilinear interpolation is reduced to panoramic picture.
Further, the panoramic picture in full-view image document handling system of the present invention can also be panoramic video.
Full-view image document handling method of the invention and system can reduce full-view image file in storage, transmission process
In data volume, improve the compression, storage and efficiency of transmission of panorama image file, bandwidth resources be effectively utilized.
Detailed description of the invention
Fig. 1 is the flow chart of full-view image document handling method of the present invention；
Fig. 2 is the transition diagram of panoramic picture and longitude and latitude image of the invention；
Fig. 3 is the transition diagram of longitude and latitude image and compression storage image in Fig. 2；
Fig. 4 is the schematic diagram of compression storage image restoring panoramic picture in Fig. 3；
Fig. 5 is the module map of full-view image document handling system of the present invention.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is specifically described.
As shown in Figure 1, full-view image document handling method process of the invention the following steps are included:
Step 101: creating the longitude and latitude image of certain the ratio of width to height, which is usually 2:1, is also possible to other ratios
Example；
Step 102: shared percentage between two wefts of setting；
Step 103: calculating the width of the every row of longitude and latitude image line by line, panoramic picture is converted by bilinear interpolation
Latitude image；
Step 104: calculating the width and height of compression storage image；
Step 105: the left-half of longitude and latitude image is copied to the corresponding position of compression storage image；
Step 106: the right half part of longitude and latitude image being divided to and is moved to the corresponding position of compression storage image, is generated
Complete compression storage image；
Step 107: creating the panoramic picture for reduction of certain the ratio of width to height, which is usually 2:1, is also possible to
Other ratios；
Step 108: finding mapping position on compression storage image line by line, compression is stored by image by bilinear interpolation
It is reduced to panoramic picture.
As shown in Fig. 2, being the transition diagram of panoramic picture of the present invention Yu latitude image, in the present embodiment, such as create
The ratio of width to height is the longitude and latitude image of 2:1.Firstly, percentage shared between two wefts of setting, is denoted as percent, percent
Value range between 0-1.Position of two wefts in longitude and latitude image is calculated according to function 1, is arranged entitled
TopHeight and bottomHeight, 1 algorithm of function are as follows:
The compressed width of longitude and latitude image current line is calculated according to function 2, is denoted as length, 2 algorithm of function is as follows:
。
Wherein, row indicates longitude and latitude image row row, and width, height are respectively the width and height of longitude and latitude image
Degree.
According to function 3 find the coordinate points (col, row) on longitude and latitude image on panoramic picture mapping point point (θ,
φ), the warp at the available coordinate points of bilinear interpolation (col, row) is carried out to the panoramic picture at mapping coordinate points (θ, φ)
Panoramic picture is converted into latitude image by bilinear interpolation by latitude image, and the algorithm of function 3 is as follows:
It is the transition diagram of longitude and latitude image and compression storage image in Fig. 2 shown in Fig. 3, creates the pressure of certain the ratio of width to height
Contracting storage image, such as the compression that the ratio of width to height is 1:2 store image.According to function 4, the width and height of compression storage image are calculated
Degree, is denoted as ow respectively and oh(is not shown in the figure), the algorithm of function 4 is as follows:
According to function 5
The coordinate points (col, row) that longitude and latitude image is calculated correspond to the coordinate points (i, j) of compression storage image, will
The longitude and latitude image obtained in Fig. 2 is split as data block 1, data block 2 and data block 3, and the data block 1 positioned at left-half replicates
To the corresponding position of compression storage image, compression storage figure is moved to after data block 2 and data block 3 fractionation of right half part
The corresponding position of picture forms complete compression shown in Fig. 3 and stores image.
Fig. 4 is the schematic diagram of compression storage image restoring panoramic picture in Fig. 3, creates being used for also for certain the ratio of width to height first
Former panoramic picture, for example, the present embodiment creates the panoramic picture for reduction of the ratio of width to height 2:1.Longitude and latitude image is arranged to sit
It is designated as (ni, nj), the mapped bits that longitude and latitude image coordinate is (ni, nj) are found on compression storage image line by line according to function 6
It sets, the algorithm of function 6 is as follows:
Wherein (i, j) is respectively the point compressed on storage image.
According to function 7, compression storage image is reduced to panoramic picture by bilinear interpolation, 7 algorithm of function is as follows:
Wherein x, y are the coordinate points restored on panoramic picture.
Fig. 5 is system module figure of the invention, as shown, the system includes image conversion module, segmentation module, splicing
Memory module and image restoring module, in which:
Panoramic picture is converted into latitude image by image conversion module；
Segmentation module connect with image conversion module, reception image conversion module convert after longitude and latitude image, and will be through
Latitude image segmentation is at video data block；
Splicing memory module connect with segmentation module, and the video data block after resume module is divided in reception, and by picture number
According to block splicing, it is stored as compression storage image；
Image restoring module with splicing memory module connect, receive splicing memory module treated compression store image,
It is panoramic picture by compression storage image restoring.
Further, image conversion module creates the longitude and latitude image of certain the ratio of width to height, and two of longitude and latitude image are arranged
Panoramic picture bilinear interpolation is longitude and latitude image by the percentage percent of longitude and latitude image shared by area between weft.
Further, segmentation module presets the width and height of compression storage image, splices memory module for longitude and latitude
The left-half of degree image copies to the corresponding position of compression storage image, and the right half part of longitude and latitude image is divided and moved
To the corresponding position of compression storage image.
Further, the panoramic picture for reduction of certain the ratio of width to height is pre-created in image restoring module, and compression is deposited
Storage image bilinear interpolation is reduced to panoramic picture.
Further, the panoramic picture in full-view image document handling system of the present invention can also be panoramic video.
It will be understood by those skilled in the art that each mathematical function in specification can be with one or more programmings
Any combination of language writes the program code for executing operation of the present invention, and described program design language includes object-oriented
Programming language-Java, C++ etc., further include conventional procedural programming language-such as " C " language or
Similar programming language.Program code can execute fully on the user computing device, partly on a user device
Execute, executed as an independent software package, part on the user computing device part execute on a remote computing or
Person executes in remote computing device or server completely.In the situation for being related to remote computing device, remote computing device can
To pass through the network of any kind --- it is connected to user calculating equipment including local area network (LAN) or wide area network (WAN)-,
Or, it may be connected to external computing device (such as being connected using ISP by internet).The present invention
Involved in calculating equipment for example can be mobile terminal, PC, hand-held tablet computer etc. with image processing function
Terminal device.
In addition, although describing the operation of the method for the present invention in the accompanying drawings with particular order, this do not require that or
Hint must execute these operations in this particular order, or have to carry out shown in whole operation be just able to achieve it is desired
As a result.Additionally or alternatively, it is convenient to omit multiple steps are merged into a step and executed by certain steps, and/or by one
Step is decomposed into execution of multiple steps.
Although detailed description of the preferred embodimentsthe spirit and principles of the present invention are described by reference to several, it should be appreciated that, this
It is not limited to the specific embodiments disclosed for invention, does not also mean that the feature in these aspects cannot to the division of various aspects
Combination is benefited to carry out, this to divide the convenience merely to statement.The present invention is directed to cover appended claims spirit and
Included various modifications and equivalent arrangements in range.
Claims (13)
1. a kind of full-view image document handling method, which comprises the following steps:
A, panoramic picture is converted into latitude image；
B, pair warp and weft degree image is split and is stored as compression storage image；
It C, is panoramic picture by compression storage image restoring；
Step A further comprises: creating the longitude and latitude image of certain the ratio of width to height, face between two wefts of longitude and latitude image is arranged
The percentage of the shared longitude and latitude image of product, is longitude and latitude image by panoramic picture bilinear interpolation；
The longitude and latitude image of described certain the ratio of width to height of creation, is arranged longitude and latitude shared by area between two wefts of longitude and latitude image
The percentage of image specifically includes:
The longitude and latitude image of certain the ratio of width to height is created, longitude and latitude image shared by area between two wefts of longitude and latitude image is set
Percentage percent；
According to functionCalculate two wefts position in longitude and latitude image
TopHeight and bottomHeight, wherein height is the height of longitude and latitude image；
According to functionCalculate longitude and latitude figure
As the compressed width length of current line, wherein row indicates that longitude and latitude image row row, width are longitude and latitude image
Width.
2. full-view image document handling method according to claim 1, which is characterized in that step B further comprises: setting
The left-half of longitude and latitude image, is copied to the corresponding position of compression storage image by the width and height of compression storage image,
The right half part of longitude and latitude image is split to and is moved to the corresponding position of compression storage image.
3. full-view image document handling method according to claim 1, which is characterized in that step C further comprises: creation
The panoramic picture for reduction of certain the ratio of width to height finds mapping position on compression storage image line by line, and bilinear interpolation is also
Former panoramic picture.
4. full-view image document handling method according to claim 1, which is characterized in that further comprise:
According to function
Search mapping point point of the coordinate points (col, row) on longitude and latitude image on panoramic picture
5. full-view image document handling method according to claim 1, which is characterized in that further comprise:
According to functionCalculate the width ow and height oh of compression storage image.
6. full-view image document handling method according to claim 1, it is characterised in that according to function
Coordinate points (col, row) on longitude and latitude image are mapped to the coordinate points (i, j) on compression storage image.
7. full-view image document handling method according to claim 4, which is characterized in that further comprise: according to function
Coordinate points (i, j) of the coordinate points (ni, nj) in compression storage image of longitude and latitude image are searched line by line.
8. full-view image document handling method according to claim 7, which is characterized in that further comprise: according to function
Compression storage image bilinear interpolation is reduced to panoramic picture, wherein (x, y) is the point restored on panoramic picture.
9. full-view image document handling method according to claim 1, which is characterized in that panoramic picture therein can be with
It is panoramic video.
10. a kind of full-view image document handling system, which is characterized in that including image conversion module, segmentation module, splicing storage
Module and image restoring module, in which:
Panoramic picture is converted into latitude image by image conversion module, specially creates the longitude and latitude image of certain the ratio of width to height,
The percentage of longitude and latitude image shared by area between two wefts of longitude and latitude image is set, is by panoramic picture bilinear interpolation
Longitude and latitude image；
Segmentation module connect with image conversion module, reception image conversion module convert after longitude and latitude image, and by longitude and latitude
Image segmentation is video data block；
Splicing memory module connect with segmentation module, and the video data block after resume module is divided in reception, and by video data block
Splice, be stored as compression storage image；
Image restoring module with splicing memory module connect, receive splicing memory module treated compression store image, will press
Contracting storage image restoring is panoramic picture；
The longitude and latitude image of described certain the ratio of width to height of creation, is arranged longitude and latitude shared by area between two wefts of longitude and latitude image
The percentage of image specifically includes:
The longitude and latitude image of certain the ratio of width to height is created, longitude and latitude image shared by area between two wefts of longitude and latitude image is set
Percentage percent；
According to functionCalculate two wefts position in longitude and latitude image
TopHeight and bottomHeight, wherein height is the height of longitude and latitude image；
According to functionCalculate longitude and latitude figure
As the compressed width length of current line, wherein row indicates that longitude and latitude image row row, width are longitude and latitude image
Width.
11. full-view image document handling system according to claim 10, which is characterized in that segmentation module presets pressure
The left-half of longitude and latitude image is copied to compression storage image by the width and height of contracting storage image, splicing memory module
The corresponding position of compression storage image is divided and be moved to the right half part of longitude and latitude image by corresponding position.
12. full-view image document handling system according to claim 10, which is characterized in that image restoring module is created in advance
Compression storage image bilinear interpolation is reduced to panoramic picture by the panoramic picture for reduction for building certain the ratio of width to height.
13. the described in any item full-view image document handling systems of 0-12 according to claim 1, which is characterized in that therein complete
Scape image can also be panoramic video.
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| PCT/CN2016/113786 WO2018082188A1 (en) | 2016-11-05 | 2016-12-30 | Method and system for panoramic image file processing |
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| CN101833773A (en) * | 2010-03-04 | 2010-09-15 | 上海亚图软件有限公司 | Texture compression and synthesis methods for gradually reducing resolution |
| CN105872546A (en) * | 2016-06-13 | 2016-08-17 | 上海杰图软件技术有限公司 | Method and system for realizing panoramic image compression storage |
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| WO2007021135A1 (en) * | 2005-08-17 | 2007-02-22 | Pixoneer Geomatics, Inc. | Processing method of data structure for real-time image processing |
| CN101102498A (en) * | 2007-07-26 | 2008-01-09 | 北京华纬讯电信技术有限公司 | A high-definition video image processing method |
| JP5891425B2 (en) * | 2011-03-03 | 2016-03-23 | パナソニックＩｐマネジメント株式会社 | Video providing device, video providing method and video providing program capable of providing follow-up video |
| JP5826730B2 (en) * | 2012-09-20 | 2015-12-02 | 株式会社ソニー・コンピュータエンタテインメント | Video compression apparatus, image processing apparatus, video compression method, image processing method, and data structure of video compression file |
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| CN101833773A (en) * | 2010-03-04 | 2010-09-15 | 上海亚图软件有限公司 | Texture compression and synthesis methods for gradually reducing resolution |
| CN105872546A (en) * | 2016-06-13 | 2016-08-17 | 上海杰图软件技术有限公司 | Method and system for realizing panoramic image compression storage |
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Address after: 518101, A, block 601, dragon light Century Towers, Hai Xiu Road, Shenzhen, Guangdong, Baoan District Patentee after: Yingshi Innovation Technology Co., Ltd Address before: 518101, A, block 601, dragon light Century Towers, Hai Xiu Road, Shenzhen, Guangdong, Baoan District Patentee before: SHENZHEN ARASHI VISION Co.,Ltd. |