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WO2006011067A2 - Sauvegarde de donnees d'image - Google Patents

Sauvegarde de donnees d'image Download PDF

Info

Publication number
WO2006011067A2
WO2006011067A2 PCT/IB2005/052242 IB2005052242W WO2006011067A2 WO 2006011067 A2 WO2006011067 A2 WO 2006011067A2 IB 2005052242 W IB2005052242 W IB 2005052242W WO 2006011067 A2 WO2006011067 A2 WO 2006011067A2
Authority
WO
WIPO (PCT)
Prior art keywords
image data
memory device
thumbnail
acquisition apparatus
picture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2005/052242
Other languages
English (en)
Other versions
WO2006011067A3 (fr
Inventor
Maarten P. Bodlaender
Erik Niessen
Peter Bingley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of WO2006011067A2 publication Critical patent/WO2006011067A2/fr
Publication of WO2006011067A3 publication Critical patent/WO2006011067A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00347—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with another still picture apparatus, e.g. hybrid still picture apparatus
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077—Types of the still picture apparatus
    • H04N2201/0084—Digital still camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077—Types of the still picture apparatus
    • H04N2201/0087—Image storage device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3212—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a job, e.g. communication, capture or filing of an image
    • H04N2201/3222—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to a job, e.g. communication, capture or filing of an image of processing required or performed, e.g. forwarding, urgent or confidential handling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
    • H04N2201/325—Modified version of the image, e.g. part of the image, image reduced in size or resolution, thumbnail or screennail

Definitions

  • the invention relates to a method of backing-up image data which is stored in an internal memory device of an image acquisition apparatus, the image data comprising a pixel matrix representing a picture.
  • the invention further relates to an apparatus for backing-up image data which is stored in an internal memory device of an image acquisition apparatus, the image data comprising a pixel matrix representing a picture.
  • the invention further relates to an image acquisition apparatus.
  • the invention further relates to a computer program product to be loaded by a computer arrangement, comprising instructions to back-up image data which is stored in an internal memory device of an image acquisition apparatus.
  • digital photos which have been acquired by an image acquisition apparatus like a digital camera are downloaded to a backup apparatus like a personal computer (PC).
  • PC personal computer
  • Several mechanisms exist for downloading this type of image data For example downloading based on a flexible transfer medium like a flash card.
  • a cable connection is used e.g. based on the universal serial bus (USB) standard.
  • USB universal serial bus
  • a further alternative is based on a wireless connection.
  • the image data which is stored in the internal memory device of the image acquisition apparatus can be erased.
  • the user of the image acquisition apparatus might wish to delay the deletion of image data.
  • a reason for this might be that the user wants to show the images to other users.
  • the image acquisition apparatus is used as a kind of data transport and display medium. It will be clear that continuing with making new images without deletion of old images eventually results in a fully occupied internal memory device. In other words, at a certain moment the user has to delete some of the old images to make space for storing new images to be acquired.
  • This object of the invention is achieved in that the method comprises: transferring the image data to an external memory device; creating an annotated thumbnail which substantially corresponds to a downscaled version of the picture and of which a group of pixels represent an annotation that the image data is back-upped.
  • an image acquisition apparatus comprises a display device for displaying thumbnails of the pictures which have been acquired. By displaying an annotated thumbnail of which a group of pixels represent an annotation that the image data is back- upped, the user is informed that the corresponding picture is back-upped.
  • the creation of the annotated thumbnail is part of the method of backing-up. This creation enables the displaying of the annotated thumbnail. In principle, displaying the annotated thumbnail is not part of the method of backing-up, but is typically part of a method of browsing.
  • the sequence of steps of transferring the image data and creating an annotated thumbnail is not fixed.
  • the transferring can succeed or precede the creating of the annotated thumbnail or the transferring and creating can be performed partly simultaneously. That means that the term "annotation that the image data is back-upped" should not be interpreted literally related to tense. Mind that the annotation may have been created even before the transfer was started.
  • image data is meant an image file comprising a number of components.
  • a typical format for such an image file is known as EXIF (exchangeable image file format).
  • EXIF exchangeable image file format
  • This standard specifies that an image file comprises a high-resolution representation of the picture a pixel matrix representing a picture, a thumbnail of the picture and some meta-data.
  • the thumbnail comprises a group of pixels which represent an annotation that the image data is back-upped. This group of pixels may correspond to an icon, a character or text which is to be interpreted by the user that the corresponding image data is back-upped.
  • An important aspect of the invention is that the information about that status is part of the pixel matrix which represents the thumbnail. That means that there is no need for an additional flag or attribute to indicate that status.
  • the probability of persistence of this information is relatively high if it is stored within the thumbnail.
  • the probability that such an additional flag is lost is relatively high because such a flag is not widely supported by back ⁇ up apparatus.
  • the proposed solution of creating the annotated thumbnail is also advantageous and s regarding to backwards compatibility.
  • the support of thumbnails already exists for several years. That means that even older equipment, e.g. for backup can benefit from this invention.
  • An other advantage of the proposed solution is that it is relatively easy to create the annotated thumbnails.
  • the annotated thumbnail is created by modifying a number of pixel values of a further thumbnail which was created on basis of the pixel matrix. In that event before starting the method of backing-up their was already a thumbnail. That means that a previously created thumbnail corresponding to the same picture is modified into a annotated thumbnail. Alternatively, there was no thumbnail before the method of backing-up started and the annotated thumbnail is created as part of the method of backing-up .
  • the annotated thumbnail is created by the image acquisition apparatus.
  • the annotated thumbnail is created by a further apparatus which comprises the external memory device and subsequently the annotated thumbnail is transferred to the image acquisition apparatus and stored into the internal memory device of the image acquisition apparatus.
  • the apparatus comprises: receiving means for receiving the image data; a memory device for storing the image data; processing means for creating an annotated thumbnail which substantially corresponds to a downscaled version of the picture and of which a group of pixels represent an annotation that the image data is back-upped; and - sending means for sending the annotated thumbnail to the image acquisition apparatus.
  • image acquisition apparatus comprises: acquisition means for acquiring image data, the image data comprising a pixel matrix representing a picture; - an internal memory device for storing the image data; transferring means for transferring the image data to an external memory device; processing means for creating an annotated thumbnail which substantially corresponds to a downscaled version of the picture and of which a group of pixels represent an annotation that the image data is back-upped.
  • This object of the invention is achieved in that the computer program product after being loaded provide processing means with the capability to carry out: transferring the image data to an external memory device belonging to a further apparatus which is external from the image acquisition apparatus; creating an annotated thumbnail which substantially corresponds to a downscaled version of the picture and of which a group of pixels represent an annotation that the image data is back-upped.
  • the computer program product may be loaded to processing means which are part of the image acquisition apparatus.
  • the computer program product may be loaded to processing means which are part of the further apparatus, i.e. a backup apparatus.
  • a further processing may be required: sending the annotated thumbnail to the image acquisition apparatus.
  • Fig. IA schematically shows image data before backing-up and Fig. IB schematically shows the image data after backing-up; and Fig. 2 schematically shows an embodiment of the image acquisition apparatus according to the invention in combination with an embodiment of the apparatus for backing- up image data according to the invention.
  • Fig. 1 A schematically shows image data 100 before backing-up.
  • the image data 100 comprises a pixel matrix 104 representing a picture.
  • the pixel matrix 104 comprises a number of pixel values. Pixel values correspond to color and/or luminance values.
  • the image data 100 further comprises meta-data 102 related to the picture. Typical attributes of the meta data 102 are the date and location of acquisition of the picture. Other attributes may be related to the number of pixels of the matrix, the number of bits used per pixel, the type of compression which optionally was used and the compression ratio which was applied.
  • the image data also comprises a thumbnail 106.
  • a thumbnail 106 corresponds to a downscaled version of the picture, i.e.
  • a thumbnail is based on interpolation of the pixel values of the pixel matrix 104.
  • the number of pixels of the thumbnail is relatively low compared with the number of pixels of the pixel matrix 104 representing the picture.
  • the number of bits is relatively low. Accessing these bits from the internal memory device of the image acquisition apparatus is faster than accessing these bits of the pixel matrix 104.
  • a typical usage of thumbnails is providing a user and impression of the acquired picture.
  • An example of a file format comprising most of the elements mentioned above is the so-called EXIF format. A specification of this format can be found at www.exif.org.
  • Fig. IB schematically shows the image data after backing-up. Basically the image data comprises the same components as described in connection with Fig. IA.
  • FIG. IB an annotated thumbnail 107 is depicted, while in Fig. IA a thumbnail 106 without annotation is depicted.
  • This annotated thumbnail 107 substantially corresponds to a downscaled version of the picture.
  • a group of pixels of the annotated thumbnail 107 represent an annotation 108 that the image data 100 is back-upped.
  • the word "substantially” is used to indicate that because of the annotation 108 the annotated thumbnail 107 differs from a direct downscaled version of the picture.
  • Fig. 2 schematically shows an embodiment of the image acquisition apparatus 200 according to the invention in combination with an embodiment of the apparatus for backing-up image data 201 according to the invention.
  • the image acquisition apparatus 200 comprises: acquisition means 212 for acquiring image data.
  • the acquisition means comprises a lens 214 and an imaging sensor based on CMOS or alternatively a CCD; an internal memory device 202 for storing the image data.
  • the internal memory device 202 comprises RAM of preferably SD-RAM; - a communication unit 206 for image data exchange with other apparatus, e.g. a backup apparatus 201.
  • the communication unit 206 comprise a physical output interface 208 and some internal wires.
  • the communication is bi-directional, i.e. both sending and receiving of data are supported.
  • the communication unit 206 comprises a transmitter/receiver for wireless transmission of image data. - a processing unit 204 and which is arranged to create thumbnails. That means that the processing unit 204 is arranged to downscale an acquired picture into a thumbnail by means of interpolation of pixel values of the acquired picture.
  • the processing unit 204 is also arranged to create an annotated thumbnail 107 which substantially corresponds to a downscaled version of the picture and of which a group of pixels represent an annotation that the image data is back-upped; and a display device 210 for displaying thumbnails, including annotated thumbnails.
  • Typically such display device comprises an LCD.
  • an embodiment of the image acquisition apparatus comprises an internal bus system for data exchange between the components of the apparatus.
  • the apparatus for backing-up image data 201 comprises: a further communication unit 218 for image data exchange with other apparatus, e.g. an image acquisition apparatus 200.
  • the further communication unit 218 comprise a physical output interface 2 24 and some internal wires. Typically, the communication is bi-directional, i.e. both sending and receiving of data are supported.
  • the further communication unit 218 comprises a transmitter/receiver for wireless transmission of image data.
  • a memory device 216 for storing data, e.g. image data.
  • the memory device 216 may be based on optical storage like CD or DVD or hard disk based. Alternatively, the memory device 216 is based on solid state; a further processing unit 222 and which is arranged to create annotated thumbnails. That means that the processing unit 222 is arranged to downscale a received picture into a thumbnail by means of interpolation of pixel values of the received picture. Optionally, the processing unit 222 is also arranged to create an annotated thumbnail 107 which substantially corresponds to a downscaled version of the received picture and of which a group of pixels represent an annotation that the image data is received by the apparatus for backing-up image data 201 ;and an internal bus system 220 via which data can be exchanged between the different components of the apparatus 201, e.g.
  • the method of backing-up image data comprises: transferring image data 100 to an external memory device 216; creating an annotated thumbnail 107 which substantially corresponds to a downscaled version of the picture and of which a group of pixels represent an annotation 108 that the image data 100 is back-upped; and optionally comprises: sending the annotated thumbnail 107 to the image acquisition apparatus 200.
  • the apparatus for backing up 201 may be a personal computer PC.
  • it is an other type of consumer electronics apparatus like a personal video recorder for storage of all kinds of audio, video and still picture data which is to be distributed in a home or office.
  • Whether the sending of the annotated thumbnail 107 takes place depends on where the creating of the annotated thumbnail 107 is performed.
  • the creation of the annotated thumbnail 107 may be performed by the image acquisition apparatus 200 or it may be performed by the receiving apparatus for backing-up image data 201. In the latter case, the creation of the updated thumbnails is succeeded by transmission of the annotated thumbnail to the image acquisition apparatus 200.
  • Tables 1 and 2 summarize the different steps for these scenarios.
  • the second column of the Tables 1 and 2 list the actions being performed by the image acquisition apparatus 200.
  • the third column of the Tables 1 and 2 lists the actions being performed by the apparatus for backing-up 201.
  • Table 1 creation of annotated thumbnail by the image acquisition apparatus.
  • Table 2 creation of annotated thumbnail by the apparatus for backing-up.
  • the action "store annotated thumbnail” preferably corresponds to overwrite the data representing the thumbnail 106 with data representing the annotated thumbnail 107.
  • a preferred connection between the image acquisition apparatus 200 and the apparatus for backing up 201 is based on a USB connection.
  • Most digital cameras, i.e. the image acquisition apparatus provide "usb mass storage” capabilities. That means that they allow access to their internal memory device 202 in a similar way as a windows file system (fat) on a hard disk.
  • the specification of the usb mass storage class can be found at the following url: http://www.usb.org/developers/devclass docs/usb_msc_overview_ L2.pdf.
  • a computer program product being loaded in the processing means comprising the further processing unit 222 and some processing memory, which is not depicted in Fig. 2, is arranged to provide instructions to access image data from the internal memory device 202 of the image acquisition apparatus 200.
  • the computer program product is also arranged to overwrite the data of the thumbnail with data of the corresponding annotated thumbnail. It will be clear that such a computer program product being loaded in a standard PC allows to operate with an image acquisition apparatus which is not arranged to create an annotated thumbnail itself.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

L'invention concerne un procédé de sauvegarde de données d'image (100), en particulier de données d'image qui sont stockées dans un dispositif à mémoire interne (202) d'un appareil d'acquisition d'image (200), les données d'image (100) comprenant une matrice de pixels (104) représentant une image. Le procédé consiste : à transférer les données d'image (100) vers un dispositif à mémoire externe (216) ; et à créer une vignette annotée (107) qui correspond sensiblement à une version réduite de l'image, un groupe de pixels de ladite vignette représentant une annotation indiquant que les données d'images (100) sont sauvegardées.
PCT/IB2005/052242 2004-07-19 2005-07-06 Sauvegarde de donnees d'image Ceased WO2006011067A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04103434.9 2004-07-19
EP04103434 2004-07-19

Publications (2)

Publication Number Publication Date
WO2006011067A2 true WO2006011067A2 (fr) 2006-02-02
WO2006011067A3 WO2006011067A3 (fr) 2006-06-22

Family

ID=35786569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/052242 Ceased WO2006011067A2 (fr) 2004-07-19 2005-07-06 Sauvegarde de donnees d'image

Country Status (1)

Country Link
WO (1) WO2006011067A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170228292A1 (en) * 2016-02-10 2017-08-10 International Business Machines Corporation Privacy Protection of Media Files For Automatic Cloud Backup Systems
US10133639B2 (en) 2016-02-10 2018-11-20 International Business Machines Corporation Privacy protection of media files for automatic cloud backup systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0004065D0 (en) * 2000-02-21 2000-04-12 Hewlett Packard Co Portable information capture devices
US7034880B1 (en) * 2000-05-11 2006-04-25 Eastman Kodak Company System and camera for transferring digital images to a service provider
JP2003110976A (ja) * 2001-09-27 2003-04-11 Fuji Photo Film Co Ltd 画像データ送信方法、デジタルカメラ、画像データ保管方法および装置並びにプログラム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170228292A1 (en) * 2016-02-10 2017-08-10 International Business Machines Corporation Privacy Protection of Media Files For Automatic Cloud Backup Systems
US10133639B2 (en) 2016-02-10 2018-11-20 International Business Machines Corporation Privacy protection of media files for automatic cloud backup systems

Also Published As

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