WO2006134509A2 - Method and apparatus for storing image data files - Google Patents
Method and apparatus for storing image data files Download PDFInfo
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- WO2006134509A2 WO2006134509A2 PCT/IB2006/051788 IB2006051788W WO2006134509A2 WO 2006134509 A2 WO2006134509 A2 WO 2006134509A2 IB 2006051788 W IB2006051788 W IB 2006051788W WO 2006134509 A2 WO2006134509 A2 WO 2006134509A2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/51—Indexing; Data structures therefor; Storage structures
Definitions
- Fig. 4 is a block diagram showing the apparatus for storing a group of image data files according to an embodiment of the present invention
- Fig.5 is a schematic diagram showing an image data file to be stored according to the present invention.
- the present invention stores the image data section that is common to multiple (two or more) image data files as a share data unit.
- each image data file is stored, as to the common data section, only the reference restoration information for describing the common data section with respect to the share data unit is stored, so as to save storage space and improve storage efficiency.
- the common data section can be restored from the share data unit based on the reference restoration information and then the image data file can be restored in combination with the specific data section in the image data file. All image data files with reference to a share data unit may constitute a group of image data files.
- acquiring description information it is not limited to capture standard description information such as EXIF information, some characteristic information therein may also be extracted by image processing techniques as the characteristic description information of the image data file, such as the rotundity and rectangle in the image, elements in a human-shaped image, the shape of an animal, the profile of a static object, a block of blue sky and etc.
- search whether there is a share data unit in the digital image device (step S 130).
- a share data unit refers to a data unit that can be used to restore other data according to the reference restoration information.
- the reference restoration information represents the similarity and difference between a data unit to be restored and the share data unit, and the conversion required for obtaining the corresponding data by the share data unit, and it may further include address information about various data and etc.
- step S220 judge whether the image data files can be archived into a group of image data files according to the acquired description information. If the similarity between the image data files falls within a preset range, the image data files are suitable to be stored as a group of image data file. For example, compare the image data files by twos to get a similarity and then compare it with a preset similarity, and then it can be determined whether the image data files can be stored as a group of image data files.
- step S240 determine a share data unit according to the description information of the acquired image data files that can be archived into one group of files.
- all or part of the data in the image data files in the group should be able be to be restored through an easy conversion according to the share data unit.
- these image data files generally have common data, wherein the identical data section or the data that are identical or can be considered as identical after simple conversion may act as a data object in the share data unit.
- not every image data file has to include the determined share data unit entirely.
- step S250 divide each of the image data files into common data section and specific data section according to the determined share data unit. Division of the image data file is described at step S 170 in Fig.l.
- Apparatus 300 further comprises a generating means 340, for generating the reference restoration information for describing the common data section with respect to the share data unit. From the reference relationship between the common data section and the share data unit, the common data section can be restored according to the share data unit.
- the reference restoration information is the description information about the correspondence between the common data section and the share data unit.
- Apparatus 300 further comprises a storing means, for storing the reference description information and the specific information of the data unit.
- the apparatus can be one with storage function in prior arts and can store image data to be stored in a conventional way.
- Apparatus 400 can be provided within a digital image device, to improve data storage efficiency and save storage space, thus forming a digital image device as provided in the present invention.
Abstract
The present invention provides a method and apparatus for storing digital image data files. The proposed method comprises steps of: acquiring description information of an image data file to be stored; comparing the description information of the image data file and description information of a share data unit, to determine a similarity between the image data file and the share data unit; dividing the image data file into specific data section and common data section if the similarity reaches a preset requirement, wherein the common data section can be restored based on the share data unit; generating reference restoration information of the common data section with respect to the share data unit; and storing the reference restoration information and specific information of the file. According to the present invention, the storage space occupied is saved and the storage efficiency is improved.
Description
METHOD AND APPARATUS FOR STORING IMAGE DATA FILES
FIELD OF THE INVENTION
The present invention relates generally to data storage field, and more particularly, to method and apparatus for storing image data files.
BACKGROUND OF THE INVENTION
The introduction of digital imaging devices, such as digital camera, camcorder, mobile phone with built-in camera and the like, brings a lot of conveniences to people's daily life. It has become fashionable to take photos by digital photography. Nowadays, digital cameras account for about one third of the total camera market, and more remarkably, the percentage keeps on growing steadily.
The convenience of digital cameras attributes to its unique manner for image data access, to a large extent. The images taken by digital cameras can be stored into certain data storage media in various image data formats. Image data are stored in various formats, such as JPEG (Joint Photographic Experts Group), TIFF (Tagged Information File Format), GIF (Graphic Interchange Format), PNG (Portable Network Graphic) and etc. There are various storage media available, like SM (Smart-Media) card, CF (Compact Flash) card, XD (extreme Digital) card, SD card, MMC (Multi-Media Card) card, Memory Stick, Micro-drive and so on. The capacity of storage media can be from 32M, 64M, 128M to
256M, and even to be in the unit of GB.
Higher techniques, however, inspires higher demands. On the one hand, personal image data files of users are increasing exponentially due to the convenience of digital imaging devices. On the other hand, people have higher requirement for the resolution of digital images, which causes the image resolution (such as pixels) to keep on improving relatively, the image resolution having been improved from 1 million pixels in the early phase to 8 million pixels presently. Under such a trend, it is of great importance to store more high-resolution image data files in a limited storage space. Accordingly, it becomes an important development direction in data storage to store more data on existing storage media more effectively.
It is, therefore, necessary to provide a method and apparatus for storing image data files, so as to store image data files more effectively.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a method and apparatus for storing image data files, to overcome the drawbacks in prior arts. According to an embodiment of the present invention, It provides a method for storing image data files, the method comprising: acquiring description information of an image data file to be stored; comparing the description information of the image data file and description information of a share data unit, so as to determine a similarity between the image data file and the share data unit; dividing the image data file into specific data section and common data section if the similarity reaches a preset requirement, wherein the common data section can be restored based on the share data unit; generating reference restoration information for describing the common data section with respect to the share data unit; and storing the reference restoration information and the specific information of the data file. According to an embodiment of the present invention, It provides an apparatus for storing image data files, the apparatus comprising: an acquiring means, for acquiring description information of an image data file to be stored; a comparing means, for comparing the description information of the image data file and description information of a share data unit, so as to determine a similarity between the image data file and the share data unit; a dividing means, for dividing the image data file into specific data section and common data section if the similarity reaches a preset requirement, wherein the common data section can be restored based on the share data unit; a generating means, for generating reference restoration information for describing the common data section with respect to the share data unit; and a storing means, for storing the reference restoration information and the specific information of the data file.
According to the method and apparatus for storing image data files as provided in the present invention, we only need to store the specific data section and the reference restoration information for describing the common data section in a image data file with respect to a share data unit, while not repeat the storage of the common data section that is identical with or in great similarity to the share data unit. When the image data file is being restored, the common data section can be restored according to the specific data section and the reference restoration information. The method proposed in the present invention
reduces the storage capacity for storing image data files and improves the storage efficiency. In particular, the present invention improves the storage efficiency for static images on mobile storage devices, such as digital camera, mobile phone and etc.
Other objects and attainments together with a fuller understanding of the invention will become apparent and appreciated by referring to the following descriptions and claims taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Detailed description will be given to the preferred embodiments of the present invention with reference to accompanying drawings, in which:
Fig. 1 is a flowchart showing the method for storing an image data file according to an embodiment of the present invention;
Fig. 2 is a flowchart showing the method for storing a group of image data files according to an embodiment of the present invention; Fig. 3 is a block diagram showing the apparatus for storing an image data file according to an embodiment of the present invention; and
Fig. 4 is a block diagram showing the apparatus for storing a group of image data files according to an embodiment of the present invention;
Fig.5 is a schematic diagram showing an image data file to be stored according to the present invention.
Throughout all the above drawings, like reference numerals will be understood to refer to like, similar or corresponding features or functions.
DETAILED DESCRIPTION OF THE INVENTION The present invention stores the image data section that is common to multiple (two or more) image data files as a share data unit. When each image data file is stored, as to the common data section, only the reference restoration information for describing the common data section with respect to the share data unit is stored, so as to save storage space and improve storage efficiency. When the image data file is reconstructed, the common data section can be restored from the share data unit based on the reference restoration information and then the image data file can be restored in combination with the specific data section in the image data file. All image data files with reference to a
share data unit may constitute a group of image data files.
Fig. 1 is a flowchart showing the method for storing an image data file according to an embodiment of the present invention. First, receive an image data file (step SIlO). The received image data file may be a static digital picture data captured by a digital image device or an external image data transferred to the digital image device, such as a picture in
JPEG format and the like.
Then, acquire the description information of the image data file (step S 120). Like other data files, an image data file also has metadata description information. For example, a file in JPEG format generally includes standard EXIF (exchange image file format) data and some other optional and extensible metadata description information. In an image data file including EXIF data, further included is description information data such as shooting date, exposure data such as the aperture, shutter, flash used and the downsized image and etc, in addition to the image data.
When acquiring description information, it is not limited to capture standard description information such as EXIF information, some characteristic information therein may also be extracted by image processing techniques as the characteristic description information of the image data file, such as the rotundity and rectangle in the image, elements in a human-shaped image, the shape of an animal, the profile of a static object, a block of blue sky and etc. Next, search whether there is a share data unit in the digital image device (step S 130).
In the present invention, a share data unit refers to a data unit that can be used to restore other data according to the reference restoration information. The reference restoration information represents the similarity and difference between a data unit to be restored and the share data unit, and the conversion required for obtaining the corresponding data by the share data unit, and it may further include address information about various data and etc.
The share data unit may be stored in a group of image data files. In the present invention, a group of image data files includes two or more image data files. This group of files includes a share data unit, by which part or all of the data in each image data file can be restored based on the reference restoration information. Generation of a group of image data files will be described later.
If it's retrieved that there is a share data unit, acquire the description information of the share data unit (step S 140). The description information of the share data unit describes the characteristic information of the share data unit. The characteristic information may
include profile information (width and height information when the image is a regular rectangle, polygon profile information when the image is irregular) of the image and compression format, resolution, orientation, chromaticity, primary chromaticity, color space transformation matrix coefficients, file update time and date of the image, model number of the data device of the image data, software used, the person who created these image data files and etc. The characteristic information also may include EXIF IFD (Image File Directory) attribute information, such as data/time of the original data or digital data, exposure time, ISO (International Standards Organization) setting and etc. The characteristic information further may include GPS (Global Position System, for describing the geographic location where the image is shot) attribute information, and description of some elements, description of the foreground and background and etc in the image.
Afterwards, compare the description information of the image data file and that of the share data unit, so as to determine whether the similarity between them reaches a preset requirement (step S 150). With prior arts, it is determined that the similarity between an image data file to be stored and a share data unit by comparing their description information. With prior arts, image division and recognition techniques can be applied to divide and recognize the image data file to be stored and compare it with the data in the share data unit, so as to get the estimate of the similarity between them. By comparing the determined similarity and a preset requirement, it can be determined whether the image data file and the share data unit satisfy the preset requirement.
If the similarity between the image data file and the share data unit doesn't satisfy the preset requirement, further retrieve whether there exists any other share data unit. If it's retrieved that there are other share data units, proceed to step S 140. If it's retrieved that there doesn't exist any other share data unit, determine whether to create a group of image data files or not (step S 165). If the user or the system intends to create a group of image data files including the image data to be stored according to existing image data files, the specific method is illustrated in the following description about Fig.2. Otherwise, end the storage method provided in the present invention, and store the image data file to be stored in a conventional storage way.
If the similarity between the image data file to be stored and the share data unit satisfies the preset requirement, divide the image data file to be stored into common data section and specific data section (step S 170). When an image data file is divided, take the
share data unit as the standard, divide the data that is included in the share data unit and the data that is slightly different to that in the share unit while can be changed to the share unit are by an appropriate change as common data section, with the other data as specific data section. Furthermore, the division can be performed according to the objects in the image, for example, the lawns or trees and the like that are common in the background of the images as the common data section and the person in the foreground as the specific data section.
The common data section in an image data file may be not completely consistent with the share data unit, as long as it can be restored easily based on the share data unit. For example, compared with the share data unit, the common data section has some similar but different data with slight changes, or the common data section lacks some data that is included in the share data unit. In both of the above two cases, the common data can be obtained according to the share data.
Then, generate the reference restoration information for describing the common data section with respect to the share data unit (step S 180). The requirement at the time of dividing an image data file is to restore the divided common data section easily based on the share data unit, so the common data section can be restored using the reference relationship description information for describing the common data section with respect to the share data unit. The reference restoration information may include the address information of the share data unit to be referred, and the data conversion required by some parts of the data and etc.
In the case that the common data section and the share data unit are identical entirely, a link relationship is established between them, so that the common data can be restored according to the link relationship when the common data is reconstructed. In the case that the common data and the share data unit are slightly different, the conversion relationship description between their different parts is established while establishing the link relationship. If there is some data that the common data section lacks while the share data unit possesses, a description should be given that this part of data is not required in the restoration of the common data. Finally, store the specific data section and the generated reference restoration information, so as to realize storage of the image data file (step S 190). The specific data section may be stored after or in simultaneity with the division of the image data file and needn't be stored again after the reference restoration information is generated. Storage
space can be saved greatly by using the method provided in the present invention to store image data files and the effect is more desirable in particular when storing static image data that is shot in a short period of time and has a lot of identical elements and identical data.
If several image data files (such as digital photos) have identical or consistent shooting date and exposure data such as the aperture, shutter and flash used are identical or consistent, there will be more identical or similar parts in the image data files. For example, if some photos are shot respectively for several people at a scenic spot within a certain period of time, their backgrounds are generally consistent. For another example, many persons have the experience to take several photos continuously for later selection when shooting a group photo for several people. There are lots of identical elements (such as the trees or rare stones in a scenic spot, the building in the scene and etc.) in the photos. Separated storage of these photos will occupy a very large space, particularly when the image resolution is high. Storage space can be saved if these common elements are stored together. Fig. 2 is a flowchart showing the method for storing a group of image data files according to an embodiment of the present invention. Storage of a group of image data files can be performed according to the user requirement, for example, several existing image data files may be stored in a group, and can also be performed by the system according to the similarity between the image data files. First, acquire the description information of a plurality of image data files (step S210).
The acquired description information of the image data files includes the description information for the generation process of the image data files such as exposure data, the characteristic information of the image data files such as data compression scheme, and the characteristic information of the image data content such as the elements, foreground, background and the like of the image. The image data files may be existing image data files, or include the image data files to be stored.
Then, judge whether the image data files can be archived into a group of image data files according to the acquired description information (step S220). If the similarity between the image data files falls within a preset range, the image data files are suitable to be stored as a group of image data file. For example, compare the image data files by twos to get a similarity and then compare it with a preset similarity, and then it can be determined whether the image data files can be stored as a group of image data files.
If these files can't be archived into a group of files, determine the image data files
therein that can be archived into one group of files (step S230). If one of the image data files is obviously different from others by exceeding a limit, such as a preset similarity parameter, this image data file will be excluded from the group of the image data files and stored in a conventional way. The image data files that can be archived into one group are determined according to the similarity between the image data files and the preset criteria.
Subsequently, determine a share data unit according to the description information of the acquired image data files that can be archived into one group of files (step S240). During determining the share data unit, all or part of the data in the image data files in the group should be able be to be restored through an easy conversion according to the share data unit. For example, if the image data files have similar exposure data, generation time, data compression scheme, elements, foreground, background and so on, these image data files generally have common data, wherein the identical data section or the data that are identical or can be considered as identical after simple conversion may act as a data object in the share data unit. Additionally, not every image data file has to include the determined share data unit entirely. If the image data file with reference to the share data unit can reach a certain criteria (such as a certain ratio), the data can be listed as that in the share data unit. For those that don't include the share data unit, complement can be made with specific description, for example, some data therein being different from the share data, they need be stored separately without referring to the share data and etc.
Then, divide each of the image data files into common data section and specific data section according to the determined share data unit (step S250). Division of the image data file is described at step S 170 in Fig.l.
Next, generate the reference restoration information describing the common data section with respect to the share data unit (step S260). When dividing the common data section from the image data file, there exists reference restoration relationship between the common data section and the share data unit, for example, some part of the data in the share data unit can be restored according to some data objects in the share data unit. According to the corresponding description information, the corresponding reference restoration relationship is generated for restoring the common data section.
Ultimately, store the share data unit, and the specific data section and the reference restoration information of each image data file (step S270). The share data unit is stored as an independent data unit in the group of the image data files, and each image data file
includes two parts, one being its specific data section, and the other part being the reference restoration information for restoring the common data section based on the share data unit.
When storing an image data file, if certain characteristic object (such as a car) is very similar to the corresponding object in other images in the group, the characteristic object may also be added into the share data unit, that is, the share data unit may also be dynamically updated. In this case, the corresponding reference restoration information generally needs to be correspondingly updated and conditioned.
According to the method for storing image data files as provided in the present invention, a user may store and manage the image data files in group initiatively according to his/her requirement to save storage resources, for example, a group of photos shot at a scenic spot within a certain time period are stored in group. When storing the image data files in a group, the common image data and image elements therein can be store only once, thus to improve data storage efficiency and save data storage space. In addition, users can also compress the data of the specific data section or the share data unit with different compression ratios and compression methods according to actual requirement (for example, some insignificant data objects are processed with larger compression ratio configuration), to get optimal storage efficiency. For example, when the foreground character is required to be highlighted, the background (the data object in the share data unit) can be compressed with higher compression ratio and the foreground character (the data object of the specific data section) compressed with lower compression ratio. In this case, the description information of the share data unit or the specific data section with different compression ratios, the description information about the processing with different compression ratios and the like, become important description information acquired or generated in storing image data files.
Fig. 3 is a block diagram showing an image data file storage apparatus 300 according to an embodiment of the present invention. Apparatus 300 comprises an acquiring means 310, for acquiring the description information of an image data file to be stored. The acquired description information of the image data file includes standard EXIF description information and some optional and extensible metadata information. In the image file format including EXIF information, there are some other description information, such as shooting date, exposure data such as the aperture, shutter, flash and the like, and downsized image and etc., in addition to the image data.
Apparatus 300 further comprises a comparing means 320, for comparing the description information of the image data file and the description information of a share data unit, to determine the similarity between the data file and the share data unit. With prior arts, it can be determined that the similarity between an image data file to be stored and a base data unit by comparing their description information. With prior arts, image division and recognition techniques cab be applied to divide and recognize the image data file to be stored and compare it with the data in the share data unit, so as to get an estimate of the similarity between them. By comparing the determined similarity and a preset requirement, it can be determined whether the image data file and the share data unit satisfy the preset requirement.
Apparatus 300 further comprise a dividing means 330, for dividing the image data file to be store into specific data section and common data section if the similarity between the image data file and the share data unit reaches a preset criterion. When an image data file is divided, take the base data unit as the standard, divide the data that is included in the base data unit and the data that is slightly different to the share unit but can be changed to the share unit as common data section, with other data as the specific data section.
Apparatus 300 further comprises a generating means 340, for generating the reference restoration information for describing the common data section with respect to the share data unit. From the reference relationship between the common data section and the share data unit, the common data section can be restored according to the share data unit. The reference restoration information is the description information about the correspondence between the common data section and the share data unit.
Apparatus 300 further comprises a storing means, for storing the reference description information and the specific information of the data unit. The apparatus can be one with storage function in prior arts and can store image data to be stored in a conventional way.
The image data file storage apparatus 300 provided in the present invention can be used to implement the method for storing image data files provided in the present invention, and the storage efficiency is improved and the storage space is saved. Apparatus 300 can be provided within a digital image device to improve data storage efficiency and save storage space, so as to form a digital image device as provided in the present invention.
Fig. 4 is a block diagram showing an apparatus 400 for storing a group of image data files according to an embodiment of the present invention. Apparatus 400 is different from
apparatus 300 in that it comprises a determining means 420, for determining the share data unit of a group of files, and other means such as acquiring means 410, dividing means 430 and storing means 440 correspond to their counterparts in apparatus 300. Apparatus 400 can create a group of image data files according to the requirement of the user or the system, by using the method for storing a group of image data file as described in Fig.2.
Apparatus 400 can be provided within a digital image device, to improve data storage efficiency and save storage space, thus forming a digital image device as provided in the present invention.
Fig.5 shows an image data file to be stored according to the present invention. As shown in the figure, three image data files A, B and C on the left of the dashed line are data files stored entirely and independently, representing the storage states of the three image data files in prior arts. A, B and C may be restored without referring to other files and information, and the total storage space occupied is the sum of the storage spaces occupied by the three files A, B and C independently. On the right of the dashed line are illustrated three image data files A, B and C stored by the storage method provided in the present invention. In the group of image data files on the right of the dashed line, there is a share data unit S. All image data files included in the group of image data files or their data can be restored with reference to the share data unit S. All image data files referring to the share data unit S are included in the group of image data files.
In the group of files on the right of the dashed line, each image data file to be stored includes a specific data section that includes corresponding header information, EXIF information and specific image data content, and a piece of reference restoration information for the share information as well. The reference restoration information describes the reference restoration relationship of the common data section in the image data file with respect to the share data unit, for example, the common data section is consistent completely with the common data or the common data lacks some data that the share data possesses or the common data has some data that the share data doesn't possess or the common data can only be obtained by converting some data in the share data, and the storage address of the base data. The space for storing the three files A, B, C and the share data unit S is smaller than that for storing the three files separately.
While descriptions are given to the present invention in conjunction with specific embodiments, it's obvious to those skilled in the art that various substitutions,
improvements and modifications can be made to the above descriptions without departing from the basis of the present invention, the scope of which is to be defined by the attached claims herein.
Claims
1. A method for storing image data files, comprising: acquiring description information of an image data file to be stored; comparing description information of the image data file and description information of a share data unit for determining a similarity between the image data file and the share data unit; dividing the image data file into specific data section and common data section if the similarity reaches a preset requirement, wherein the common data section is capable of being restored based on the share data unit; generating reference restoration information for describing the common data section with respect to the share data unit; and storing the reference restoration information and the specific information of the data file.
2. The method according to claim 1, wherein the description information includes at least one of followings: description information for generation process of an image data file, and content description information of an image data file.
3. The method according to claim 1 or 2, wherein the reference restoration information includes address information of the share data unit.
4. An apparatus for storing image data files, comprising: an acquiring means, for acquiring description information of an image data file to be stored; a comparing means, for comparing the description information of the image data file and description information of a share data unit for determining a similarity between the image data file and the share data unit; a dividing means, for dividing the image data file into specific data section and common data section if the similarity reaches a preset requirement, wherein the common data section is capable of being restored based on the share data unit; a generating means, for generating reference restoration information for describing the common data section with respect to the share data unit; and a storing means, for storing the reference restoration information and the specific information of the data file.
5. The apparatus for storing image data files according to claim 4, wherein the description information includes at least one of the followings: description information for generation process of an image data file, and content description information of an image data file.
6. The apparatus for storing image data files according to claim 4 or 5, wherein the reference restoration information includes address information of the share data unit.
7. A method for storing a group of image data files, the method comprising: acquiring description information of a plurality of image data files; determining a share data unit based on the acquired description information; dividing each of the image data files into specific data section and common data section based on the determined share data unit, wherein the common data section is capable of being restored based on the share data unit; generating reference restoration information for describing the common data section with respect to the share data unit; and storing the share data unit and the reference restoration information and the specific data section of each of the image data files.
8. The method for storing a group of image data files according to claim 7, wherein the description information includes at least one of the followings: description information for generation process of an image data file, and content description information of an image data file.
9. The method for storing a group of image data files according to claim 7 or 8, wherein the reference restoration information includes address information of the share data unit.
10. An apparatus for storing a group of image data files, the apparatus comprising: an acquiring means, for acquiring description information of a plurality of image data files; a determining means, for determining a share data unit based on the acquired description information; a dividing means, for dividing each of the image data files into specific data section and common data section based on the determined share data unit, wherein the common data section is capable of being restored based on said the share data unit; a generating means, for generating reference restoration information for describing the common data section with respect to the share data unit; and a storing means, for storing the share data unit and the reference restoration information and the specific data section of each of the image data files.
11. The apparatus for storing a group of image data files according to claim 10, wherein the description information includes at least one of the followings: description information for generation process of an image data file, and content description information of an image data file.
12. The apparatus for storing a group of image data files according to claim 10 or 11, wherein the reference restoration information includes address information of the share data unit.
13. A digital imaging device, comprising: a receiving means, for receiving an image data file; an apparatus for storing image data files, including: an acquiring means, for acquiring description information of the image data file; a comparing means, for comparing the description information of the image data file and description information of a share data unit for determining a similarity between the image data file and the share data unit; a dividing means, for dividing the image data file into specific data section and common data section if the similarity reaches a preset requirement, wherein the common data section is capable of being restored based on the share data unit; a generating means, for generating reference restoration information for describing the common data section with respect to the share data unit; and a storing means, for storing the reference restoration information and the specific information of the data file.
14. The digital imaging device according to claim 13, wherein the description information includes at least one of description information for generation process of an image data file and content description information of an image data file.
15. The digital imaging device according to claim 13 or 14, wherein the reference restoration information includes address information of the share data unit.
16. A digital imaging device, comprising: a receiving means, for receiving a plurality image data files; an apparatus for storing a group of image data files, comprising: an acquiring means, for acquiring description information of the plurality of image data files; a determining means, for determining a share data unit based on the acquired description information; a dividing means, for dividing each of the image data files into specific data section and common data section based on the determined share data unit, wherein the common data section is capable of being restored based on the share data unit; a generating means, for generating reference restoration information for describing the common data section with respect to the share data unit; and a storing means, for storing the share data unit and the reference restoration information and the specific data section of each of the image data files.
17. The digital imaging device according to claim 16, wherein the description information includes at least one of description information for generation process of an image data file and content description information of an image data file.
18. The digital imaging device according to claim 16 or 17, wherein the reference restoration information includes address information of the share data unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510076454 | 2005-06-15 | ||
| CN200510076454.8 | 2005-06-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2006134509A2 true WO2006134509A2 (en) | 2006-12-21 |
| WO2006134509A3 WO2006134509A3 (en) | 2007-03-01 |
Family
ID=37198885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2006/051788 WO2006134509A2 (en) | 2005-06-15 | 2006-06-06 | Method and apparatus for storing image data files |
Country Status (2)
| Country | Link |
|---|---|
| TW (1) | TW200802170A (en) |
| WO (1) | WO2006134509A2 (en) |
Cited By (1)
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| WO2018049739A1 (en) * | 2016-09-13 | 2018-03-22 | 首都师范大学 | Method and device for storing image data |
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| WO2018049739A1 (en) * | 2016-09-13 | 2018-03-22 | 首都师范大学 | Method and device for storing image data |
| US10943327B2 (en) | 2016-09-13 | 2021-03-09 | Capital Normal University | Method and device for storing image data |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006134509A3 (en) | 2007-03-01 |
| TW200802170A (en) | 2008-01-01 |
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