CN1420475A - Intellgent image data storage managing method and device - Google Patents
Intellgent image data storage managing method and device Download PDFInfo
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- CN1420475A CN1420475A CN 02158037 CN02158037A CN1420475A CN 1420475 A CN1420475 A CN 1420475A CN 02158037 CN02158037 CN 02158037 CN 02158037 A CN02158037 A CN 02158037A CN 1420475 A CN1420475 A CN 1420475A
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Abstract
An intelligent memory management method for image data includes providing a storage medium containing many image data units consisting of a basic layer and a reinforcing layer containing multiple image data layers for the memory unit in camera, lowering the image quality factor of the image data to be deleted for deleting them, requesting new storage space, and storing new image data.
Description
Technical field
The present invention is relevant for the storage management method of data, and particularly a kind of intelligent image data storing management method and device.
Background technology
Digital camera early, behind the recording image, the image compression is stored on its appended Storage Media, the image File Format of its storage is mainly based on audio communication video signal stagger scheme (AVI), mpeg group-1 (MPEG-1) or mpeg group-2 (MPEG-2), and main difference is image compressed format, archives compression ratio and image resolution height.
The shortcoming of tradition image storing mode is can't be after image recording be finished, according to the demand of user to the media storage device capacity, sacrifice the quality of previous image frame, get the possibility of recording the longer time image again in return, and traditional image storing mode does not have elasticity.
Therefore, when the capacity image of recording is filled Storage Media, in the time of can't recording any image again, if want to take another section film, unique method has only wherein one section image deletion, just has way to record again again.
Fig. 1 shows the synoptic diagram of conventional digital image media storage device.As shown in the figure, digitized video media storage device 1 has comprised three sections image datas: video signal data 11, video signal data 13 and video signal data 15.The form of video signal data is MPEG-1 or MPEG-2, and each video signal data all comprises an I-page frame (I-frame, intra-coded frame) and a plurality of P-page frame (P-frame, Predict ive-coded frame).The I-page frame occurs twice usually in the numerical information of 30 page frames of per second, but mainly is decided by still each, whether picture had very big variation in second, and the I-page frame has determined the image of background and as the prediction reference page frame of P-page frame; The P-page frame is to be used for analyzing last page frame and the object estimated in the film can occur in which position of next page frame, and the ability of this prediction object dynamically and in moving can provide preferable animation shadow matter in successional film is broadcast.
Digitized video media storage device 1 can be any Storage Media, for example computer media memory card (Smart Media), flash memory (Memory Stick) and compact flash memory card (Compact Flash), hard disk, CD-RW or DVD-RW imprint CDs etc., suppose that its capacity has 200MB, the size of video signal data 11 is that the size of 100MB, video signal data 13 is that the size of 50MB and video signal data 15 is 50MB, and use the space of digitized video media storage device 1 this moment.If think to record the video signal data of one section 30MB size, then necessary deletion wherein one section video signal data (is deleted video signal data 15) again.
With digital camera, if present digital camera is not when memory card has remaining space, but also wants to take other photo, the photo of partly before having taken can be changed into the lower photo of resolution and store to exchange more spaces for.But because the image format of digital camera and digital camera is different, can't use identical method, also can reach same purpose at present without any known techniques.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of method of image data storage management, more flexible image storing mode is provided, allow the user can in the Storage Media of prestored image archives, obtain more storage area to increase by one section new image.
Based on above-mentioned purpose, the invention provides a kind of method of intelligent image data storing management, it is as described below that it implements basic step: provide a Storage Media at a video camera media storage device, Storage Media comprises several image datas, each image data has comprised a basal layer (Base Layer) and an enhancement Layer (Enhancement Layer), comprises the image data layer of plural image quality coefficient in addition in enhancement Layer; If will increase new image data, suppose new image data capacity greater than the remaining spatial content of Storage Media, then cutout has stored the image quality coefficient of the enhancement Layer of image data, reduces the image quality of original image data; And obtain a new storage area from Storage Media, and new storage area capacity is more than or equal to the capacity of new image data, to store above-mentioned new image data.
In addition, the invention allows for a kind of device of intelligent image data storing management, comprising: a data input cell, obtain an image data, above-mentioned image data comprises a basal layer and an enhancement Layer, and above-mentioned enhancement Layer comprises plural image data layer; One Storage Media unit is coupled to above-mentioned data input cell, and above-mentioned image data is stored in above-mentioned Storage Media unit; And a data processing unit, be coupled to above-mentioned Storage Media unit, delete the part above-mentioned image data layer of above-mentioned enhancement Layer, to obtain a new storage area.
The present invention utilizes the characteristic of MPEG-4 FGS File Format, partial image factor of merit in the enhancement Layer is deleted, reduce the quality of original image, and then reduce original image data capacity, to exchange new storage area for, allow the user can in the Storage Media of prestored image archives, obtain more storage area increasing by one section new image, thereby more flexible image storing mode is provided.
Description of drawings
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and cooperate appended graphicly, be described in detail below:
Fig. 1 shows the synoptic diagram of conventional digital image media storage device;
Fig. 2 shows system architecture diagram of the present invention;
Fig. 3 shows the synoptic diagram of digitized video media storage device of the present invention;
Fig. 4 shows the file administration synoptic diagram of digitized video media storage device of the present invention.
Symbol description:
1,3～digitized video media storage device;
2～storage device;
11,13,15,31,32,33～video signal data;
21～data input cell;
23～Storage Media unit;
25～data processing unit;
311～basal layer;
312～enhancement Layer;
D～give up image quality coefficient.
Embodiment
The invention provides a kind of method of intelligent image data storing management.
Fig. 2 is a system architecture diagram of the present invention.The digitized video media storage device of storage device 2 expression digital cameras, its fundamental purpose is that the image that will be recorded stores.Storage device 2 comprises a data input cell 21, a Storage Media unit 23 and a data processing unit 25.Data input cell 21 obtains the video signal data of being recorded from video camera, video signal data is imported in the Storage Media unit 23 store, and data processing unit 25 23 takes out video signal data from the Storage Media unit, returns after treatment again and deposits in the Storage Media unit 23.
Fig. 3 is the synoptic diagram of digitized video media storage device of the present invention.The unconventional AVI of employed in the present invention video signal data form, MPEG-1 or MPEG-2, and be to use the up-to-date mpeg group-4 (MPEG-4 that meets, Motion Pictures Expert Group) scalability video coding (FGS, Fine Granularity Scalability), abbreviate as: MPEG-4 FGS image compression standard.Each image of MPEG-4 FGS can divide two-layer (Layer): basal layer (Ba seLayer), the image data that can independently decipher is provided, and have only less image quality coefficient; And an enhancement Layer (Enhancement Layer), many image quality coefficients are provided.The image quality that basal layer is independently deciphered out is poor, adds that the part or all of image quality coefficient of enhancement Layer can improve the image quality of being deciphered out.
The FGS version that MPEG-4 adopts is to be position layer coding (the bitplane DCT-based coding) mode on basis with discrete cosine transform (DCT, Discrete CosineTransform).FGS encodes to have to calculate simply, contain one section network bandwidth " scope " and possess packet loss and restores advantages such as (packetloss resilience).
The digitized video media storage device 3 of Fig. 3 has comprised three sections image datas: video signal data 31, video signal data 32 and video signal data 33.Each section video signal data all is made up of an I-page frame and a plurality of P-page frame, the I-page frame occurs twice in the numerical information of 30 page frames of per second usually, but mainly be decided by still each, whether picture had very big variation in second, the I-page frame has determined the image of background and as the prediction reference page frame of P-page frame; The P-page frame is to be used for analyzing last page frame and the object estimated in the film can occur in which position of next page frame, and the ability of this prediction object dynamically and in moving can provide preferable animation shadow matter in successional film is broadcast.And each I-page frame and P-page frame are represented an image in the video signal data respectively, and each image is made up of basal layer 311 and enhancement Layer 312 respectively, and enhancement Layer 312 is the image data layers that comprise plural image quality coefficient.The capacity of supposing digitized video media storage device 3 is 200MB, the capacity of video signal data 31 is 100MB, the capacity of video signal data 32 is 50MB, the capacity of video signal data 33 is 50MB, three sections image datas like this have taken digitized video media storage device 3, if at this moment will increase one section image data newly, should how to do?
Fig. 4 is the file administration synoptic diagram of digitized video media storage device of the present invention.Can utilize the characteristic of the image file form of MPEG-4 FGS this moment, if video signal data 31 is not so important, image quality can be so good, then keep the basal layer of video signal data 31 and the image quality coefficient of part enhancement Layer, make the image quality of video signal data 31 reduce, the relative a part of space (Fig. 4 give up image quality coefficient D) of just can vacating; Same, video signal data 32 also keeps the image of basal layer and part enhancement Layer, make the image quality of video signal data 33 reduce, can vacate a part of space (Fig. 4 give up image quality coefficient D) again again, so can increase one section image data again newly in digitized video media storage device 3.
Intelligent shadow data of the present invention as the storage management method on limited digital camera media storage device, use meets MPEG4 FGS image compression standard compressed digital image data, can be with the compressing image data in the preexist storage device according to picture quality, the image quality coefficient of giving up the part enhancement Layer is to exchange the image recording space of longer time for.
The present invention is according to the capacity of image compression quality and video camera media storage device, and intelligent dynamic-configuration image packed data is a kind of tool elasticity and high efficiency image compress mode and storage management method.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (14)
1. the method for an intelligent image data storing management is applicable to a video camera media storage device, it is characterized in that: comprise the following steps:
One Storage Media is provided, is used in above-mentioned video camera media storage device, above-mentioned Storage Media comprises at least one image data, and above-mentioned image data comprises a basal layer and an enhancement Layer; Wherein above-mentioned enhancement Layer comprises plural image data layer, and each above-mentioned image data layer has different image quality coefficients;
Increase by a new image data;
If the capacity of above-mentioned new image data is then deleted the part above-mentioned image data layer of above-mentioned enhancement Layer greater than the remaining spatial content of above-mentioned Storage Media; And
Obtain a new storage area from above-mentioned Storage Media, the capacity of above-mentioned new storage area is more than or equal to the capacity of above-mentioned new image data, to store above-mentioned new image data.
2. the method for intelligent image data storing management as claimed in claim 1, it is characterized in that: the form of above-mentioned image data is a MPEG-4 FGS image compression standard.
3. the method for intelligent image data storing management as claimed in claim 1, it is characterized in that: the above-mentioned basal layer in the above-mentioned image data provides lower image quality.
4. the method for intelligent image data storing management as claimed in claim 1 is characterized in that: according to user's demand, the step of the above-mentioned image data layer of cutout above-mentioned image data is for obtaining the above-mentioned image data of different images quality.
5. the method for intelligent image data storing management as claimed in claim 1, it is characterized in that: above-mentioned Storage Media is the memory card of following form: computer media memory card, flash memory and compact flash memory card, hard disk, CD-RW or DVD-RW imprint CDs.
6. the device of intelligent image data storing management, it is characterized in that: this device comprises:
One data input cell obtains an image data, and above-mentioned image data comprises a basal layer and an enhancement Layer, and above-mentioned enhancement Layer comprises plural image data layer;
One Storage Media unit is coupled to above-mentioned data input cell, and above-mentioned image data is stored in above-mentioned Storage Media unit; And
One data processing unit is coupled to above-mentioned Storage Media unit, deletes the part above-mentioned image data layer of above-mentioned enhancement Layer, to obtain a new storage area.
7. the device of intelligent image data storing management as claimed in claim 6, it is characterized in that: the device of above-mentioned data input cell is obtained above-mentioned image data from a video camera.
8. the device of intelligent image data storing management as claimed in claim 7, it is characterized in that: the form of above-mentioned image data is a MPEG-4 FGS image compression standard.
9. the device of intelligent image data storing management as claimed in claim 6, it is characterized in that: above-mentioned basal layer provides lower image quality.
10. the device of intelligent image data storing management as claimed in claim 6, it is characterized in that: above-mentioned enhancement Layer comprises plural image data layer, and each above-mentioned image data layer has different image qualities.
11. the device of intelligent image data storing management as claimed in claim 10, it is characterized in that: if will increase a new image data greater than above-mentioned Storage Media unit remaining space newly, the device that sees through above-mentioned data processing unit is deleted the part above-mentioned image data layer of above-mentioned enhancement Layer, to obtain above-mentioned new storage area from above-mentioned Storage Media unit.
12. the device of intelligent image data storing management as claimed in claim 11, it is characterized in that: above-mentioned new image data is deposited in above-mentioned new storage area.
13. the device of intelligent image data storing management as claimed in claim 11 is characterized in that: the step of the part above-mentioned image data layer of the above-mentioned enhancement Layer of deletion above-mentioned image data is for obtaining the relatively poor above-mentioned image data of an image quality.
14. the device of intelligent image data storing management as claimed in claim 6, it is characterized in that: above-mentioned Storage Media is the memory card of following form: computer media memory card, flash memory and compact flash memory card, hard disk, CD-RW or DVD-RW imprint CDs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02158037 CN1259639C (en) | 2002-12-20 | 2002-12-20 | Intellgent image data storage managing method and device |
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| CN 02158037 CN1259639C (en) | 2002-12-20 | 2002-12-20 | Intellgent image data storage managing method and device |
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| CN1420475A true CN1420475A (en) | 2003-05-28 |
| CN1259639C CN1259639C (en) | 2006-06-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297273B (en) * | 2004-10-25 | 2012-05-16 | 希尔莱特有限责任公司 | Preserving content of serial use devices in view of purge |
| CN103634552A (en) * | 2012-08-28 | 2014-03-12 | 华为技术有限公司 | Monitoring video storage method, system and central management server |
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2002
- 2002-12-20 CN CN 02158037 patent/CN1259639C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297273B (en) * | 2004-10-25 | 2012-05-16 | 希尔莱特有限责任公司 | Preserving content of serial use devices in view of purge |
| CN103634552A (en) * | 2012-08-28 | 2014-03-12 | 华为技术有限公司 | Monitoring video storage method, system and central management server |
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| Publication number | Publication date |
|---|---|
| CN1259639C (en) | 2006-06-14 |
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