KR20130137075A - Method for storing image data and apparatus for thea same - Google Patents

Method for storing image data and apparatus for thea same Download PDF

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Publication number
KR20130137075A
KR20130137075A KR1020130028086A KR20130028086A KR20130137075A KR 20130137075 A KR20130137075 A KR 20130137075A KR 1020130028086 A KR1020130028086 A KR 1020130028086A KR 20130028086 A KR20130028086 A KR 20130028086A KR 20130137075 A KR20130137075 A KR 20130137075A
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South Korea
Prior art keywords
image data
information
input
stored
image
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KR1020130028086A
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Korean (ko)
Inventor
정지홍
조익환
백성환
신대규
정진회
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삼성전자주식회사
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Priority to US13/909,718 priority Critical patent/US20130329061A1/en
Priority to EP13170712.7A priority patent/EP2672401A1/en
Priority to CN2013102228408A priority patent/CN103473254A/en
Publication of KR20130137075A publication Critical patent/KR20130137075A/en

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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
    • 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
    • G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Library & Information Science (AREA)
  • Software Systems (AREA)
  • Processing Or Creating Images (AREA)

Abstract

The image data processing method according to the present invention includes the steps of receiving input image data from an external source, checking whether the input image data matches a stored image data previously stored in a database, and matching the stored image data. And storing the input image data in a database and providing the stored image data stored in the database.

Description

Method and device for storing image data {METHOD FOR STORING IMAGE DATA AND APPARATUS FOR THEA SAME}

The present invention relates to a method and apparatus for storing image data, and more particularly, to a method and apparatus for constructing a DB of image data to reuse image data provided by a user in a service.

Wireless terminals are currently being provided with various services based on location. That is, services such as showing a map, providing a navigation function, or tracking a location based on a place where a wireless terminal is located are provided. In particular, a service for providing a user with an image of a surrounding when providing a map or a navigation function is provided.

However, the currently provided image has a 2D format and is limited in view of the image, so that it is somewhat insufficient to obtain an accurate image desired by the user.

In addition, while the actual environment is constantly changing, it is difficult for a service provider to frequently update and build a DB for image data for a wide range of areas due to the limitations of the equipment and economic problems.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and provides a method and apparatus for constructing an image data DB to be used for a service in real time and automatically by utilizing image data obtained by a user using a service. There is this.

The image data processing method according to an aspect of the present invention includes the steps of receiving input image data from an external source, checking whether the input image data matches a stored image data previously stored in a database, and And storing the matching input image data in a database, and providing the stored image data stored in the database.

According to another aspect of the present invention, an image data input apparatus includes a camera unit for photographing an image, a time information checking unit for checking time information, and position information for checking coordinates of latitude and longitude of an area where the image data input device is located. Confirmation unit, a direction information processing unit for confirming the direction that the camera is provided in the image data input device, the image provided from the camera unit, the time information confirmed by the time information checking unit, the position information provided from the position information processing unit And an image data generation unit for generating image data by combining the direction information identified by the direction information processing unit.

According to another aspect of the present invention, an image data processing apparatus includes a camera unit for photographing an image, a location information confirmation unit for confirming coordinates of latitude and longitude of an area where the image data input device is located, and an image data input device. The direction information processing unit for confirming the direction that the camera is facing, the time information checked therein, the image provided from the camera unit, the position information provided from the position information processing unit, and the direction information processing unit And an image data generator for generating image data by combining the direction information.

According to the present invention, image data input such as portable terminals (portable multimedia devices, tablet PCs, digital cameras, etc.), mobile communication terminals (cellular phones, smart phones, etc.), which are not carried out at a specific time and are carried by an unspecified majority It can be repeated from time to time through the device, it is possible to build a database for the image data more efficiently using the image data provided from a plurality of image data input device.

In addition, by updating the image data provided from time to time by the image data input device in real time, it is possible to provide the most recent image data of the region or location, there is an advantage that can provide a more realistic image data to the user .

In addition, by automatically checking the additional information from the image provided from the user, and stored in the image data DB, the administrator of the image data DB to reduce the burden of manually entering the additional information, the user's utilization There is an advantage that can efficiently build high additional information.

1 is a block diagram of an image data storage management system according to an embodiment of the present invention;
2 is a block diagram showing a detailed configuration of an image data input device included in an image data management system according to an embodiment of the present invention;
3 is a block diagram showing a detailed configuration of an image data management server included in an image data management system according to an embodiment of the present invention;
4 is an exemplary diagram of stored image data stored in a database of an image data management server according to an embodiment of the present invention;
5 is a flowchart of an image data processing method according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. It is to be noted that the same components in the drawings are denoted by the same reference numerals and symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a block diagram of an image data storage management system according to an exemplary embodiment of the present invention. Referring to FIG. 1, an image data management system according to an embodiment of the present invention includes an image data input device and an image data management server connected through a wired or wireless communication network.

The image data input device 10 basically includes a camera for photographing an image and a communication module for transmitting image data through a wired or wireless communication network. For example, the image data input device 10 includes a portable terminal (a portable multimedia device, a tablet PC, a digital camera, etc.), a mobile communication terminal (a cellular phone, a smart phone, etc.), and further, for building image data. It may include an image photographing device provided for a special purpose.

The image data management server 20 has an environment in which image data provided from the image data input device 10 is received to build a database, and provide the constructed database to a user.

In particular, the image data management server 20 may receive and store image data from the plurality of image data input devices 10, and may include information (eg, included in image data provided from the plurality of image data input devices 10). Update, store and manage image data in consideration of location information, direction information, time information, weather information, etc., provide users with the most recently updated image data, or provide updated image data in chronological order can do.

Referring to the operation of the image data management system, first, the image data input device 10 transmits the acquired image data to the image data management server 20 through a wired or wireless communication network. Then, the image data management server 20 checks a region of the database to which the received image data matches in consideration of various information included in the image data, for example, GPS information, direction information, time information, weather information, and the like. The stored image data matching the generated image data. Thereafter, the image data management server 20 checks an association between the received image data and the stored image data, and updates and stores the stored image data with the received image data.

The operation of the image data management system is not performed at a specific time, but is carried by an unspecified number of portable terminals (portable multimedia devices, tablet PCs, digital cameras, etc.), mobile communication terminals (cellular phones, smart phones, etc.). The same image data input device 10 may be repeated from time to time. Therefore, the image data management server 20 has an advantage of more efficiently constructing a database for image data in the image data management server 20 using the image data provided from the plurality of image data input devices 10. have. In addition, the image data management server 20 can update the image data provided by the image data input device 10 in real time, thereby providing the most recent image data of the region or location, thereby providing more realistic image data. There is an advantage that can be provided to the user.

2 is a block diagram illustrating a detailed configuration of an image data input device included in an image data management system according to an exemplary embodiment of the present invention. Referring to FIG. 2, the image data input apparatus includes a camera unit 210, a location information processor 220, a direction information processor 230, and an image data generator 240.

The camera unit 210 is a conventional camera for capturing an image, and outputs color information of the photographed area in raw data or a compressed data format in a predetermined format. In one embodiment of the present invention, the image indicates data output from the camera unit 210 and is defined as raw data or color information compressed in a predetermined format.

The location information processor 220 generally checks the latitude and longitude coordinates of the area where the current image data input device is located, and checks the distance between the satellite and the receiver by confirming a signal transmitted from the satellite. The location information processing unit 220 is a module for processing a signal based on a satellite navigation system to identify a location, for example, GPS, Beitou, DORIS, Glonass, COMPASS, Galileo, IRNSS, QZSS, EGNOS, GAGAN, GPS-C. , LAAS, MSAS, WAAS, Starfire, and the like.

In addition, the location information processing unit 220 may further include a module for checking a location in the room when it is located indoors, for example, using Wi-Fi, an acceleration sensor, a G-sensor, or the like. The location and movement in the room can be detected.

In addition, the location information processing unit 220 may confirm the altitude of the image data input device using the altitude sensor, and may further reflect this in the verification of the location information.

In particular, the direction information processor 230 identifies the direction that the camera provided in the image data input apparatus is facing and generates and provides information on the direction (hereinafter, referred to as direction information). For example, the direction information processor 230 may include a direction sensor to check the direction information checked through the direction sensor, or to check the direction information using information checked through the acceleration sensor and the magnetic field sensor.

The image data generator 240 controls operations of the camera unit 210, the location information processor 220, and the direction information processor 230 to generate image data. The image data generator 240 first instructs the operation of the camera unit 210 to activate the camera unit 210 to preview color information acquired through the camera unit 210 using a function such as preview. The display device may be output to a display (not shown), and at the same time, the location information processing unit 220 and the direction information processing unit 230 may be operated to wait for an operation for obtaining location information and direction information.

Subsequently, when a shooting button is input by the user, the camera unit 210 converts the color information into a predetermined format to generate an image and outputs the image at the corresponding time and time, and the image data generator 240 generates the image. The position information processor 220 and the direction information processor 230 instruct the confirmation of the position information and the direction information, respectively, at the time and the time point at which they are displayed. The image data generator 240 combines an image provided from the camera unit 210, a location information provided from the location information processor 220, a direction information provided from the direction information processor 230, and time information. Generate image data. The image data generated in this way is first stored inside, and is transmitted to the image data management server through the communication module.

Furthermore, the image data input apparatus may further include an additional information processor 250 which extracts and provides additional information from the image provided by the camera unit 210. The additional information processor 250 may apply additional information detection algorithms to the image provided by the camera unit 210 to detect additional information such as a predetermined character or direction indication from the image. The text may include, for example, a text written on a road sign, a text written on a sign of a building, a contact, a text indicating a price of a specific product, and the like. In this case, the additional information processor 250 may image the coordinates of the area where the additional information is detected along with the additional information so that the 3D position of the additional information may be identified using the coordinates of the area where the additional information is detected. The data manager 330 may be provided.

Meanwhile, in generating the image data, the image data generator 240 may further include additional information provided by the additional information processor 250 to generate image data.

3 is a block diagram illustrating a detailed configuration of an image data management server included in an image data management system according to an embodiment of the present invention. Referring to FIG. 3, the image data management server includes an image data input unit 310, an image data matching unit 320, an image data management unit 33, an image data providing unit 340, and an image data DB 350. do.

The image data input unit 310 is an input / output interface device that receives image data from an external device. For example, the image data input unit 310 performs a function of receiving image data generated by the image data input device through a communication network, or obtained by an external device. The image data is received from a storage medium storing the data. In this case, the image data input unit 310 may be input through a storage medium storing image data obtained by an external device, a USB, an optical transmission port, a serial port, a parallel port, and the like.

The image data matching unit 32 compares the image data input from the image data input unit 310 (hereinafter referred to as input image data) with the image data stored in the image data DB (hereinafter referred to as stored image data) and matches. The stored image data. At this time, the image data matching unit 32 preferably checks the matching stored image data in consideration of location information, direction information, time information, and the like included in the image data, and more preferably uses the location information and time information. Request the weather information to a server (not shown) providing the weather information, and check the stored image data by reflecting the weather information.

In addition, the image data matching unit 320 scores a ratio at which the images of the input image data and the stored image data match each other, and indicates that the input image data and the stored image data are matched when indicating a value equal to or greater than a predetermined predetermined ratio. You can decide.

Specifically, referring to the operation of the image data matching unit 320, the image data matching unit 320 preferentially reflects location information, direction information, time information, weather information, etc. included in the input image data, and stores the image data DB ( 350, the plurality of stored image data corresponding to the input image data is detected as a candidate group. Each image of the plurality of stored image data included in the detected candidate group and the image of the input image data are applied to an image matching algorithm to confirm a matching ratio of the two images, and the stored image having a relatively high matching ratio. The decision is made to match the data. As such, the image data matching unit 320 reflects the location information, the direction information, the time information, the weather information, and then matches the input image data by performing image matching on the images for the selected candidate group. Since it can be confirmed, it is possible to detect more accurately matched image data, it is possible to increase the reliability of the image data. Accordingly, the image data management server of the present invention can provide more accurate and reliable image data when applied to augmented reality.

The image data manager 330 manages image data stored in the image data DB 350. The image data manager 330 updates the stored image data that is determined to match the input image data by the image data matching unit 320 to the input image data. Save it. In this case, the image data manager 330 may update and store the stored image data with the input image data, or store the input image data in chronological order with respect to the stored image data.

In addition, in storing the stored image data, when there are a plurality of image data for the same position and angle, the image data manager 330 may further extract and store 3D data using the plurality of image data. Specifically, by checking the overlapping areas among the plurality of images for the same position and angle, converting the overlapping areas into a 3D image format, and applying stereo matching to the 3D converted image, The feature points of the included subjects are extracted, and the extracted feature points are stored as 3D data. In this case, a plurality of images having the same position and angle may exist, so that a more realistic 3D image may be realized and more accurate and reliable 3D data may be extracted based on the same.

The image data DB 350 may be divided into an area in which information about the image data is stored and an area in which an actual image is stored. For example, an area in which information about the image data is stored is stored in a predetermined format to facilitate matching of the information included in the image data as illustrated in FIG. 4. To this end, the image data management unit 330 stores the information identified by the image matching unit 320, that is, location information, direction information, time information, weather information, etc., of the input image data in the image data DB 350. The image data manager 330 additionally automatically generates index information for efficiently searching for the stored image using time information and weather information according to a predetermined rule, and further stores the index information in the image data DB 350. For example, in generating the index information, considering the time information, if the date is between March and May, if the date is between June and August, the summer, if from September to November, autumn, December to February If it is set as winter, it can be set as the morning from 6 to 12 am, afternoon from 12 to 18:00, evening from 18:00 to 20:00, and night from 20 to 6 pm.

The image data providing unit 340 has an environment in which stored image data stored in the image data DB 350 can be provided to the user terminal. For example, a web page capable of checking image data corresponding to a location, a direction, and a time requested from a user terminal from a stored image stored in the image data DB 350 and providing the identified stored image data to the user terminal. Or 3D map application environment.

In addition, the image data management server may further include an additional information processor 360 for identifying additional information from the input image data. For example, the additional information processor 360 may apply a character detection algorithm to an image included in the input image data to detect additional information such as a predetermined character or direction indication from the image.

Since the additional information processor may be provided in the image data input apparatus and the additional image data may already be included in the input image data, the additional information processor 360 separately inputs the additional information when the input image data includes the additional information. The additional information included in the input image data may be identified and provided to the image data management unit 330 without proceeding to detect additional information in the image included in the image data.

In addition, the additional information processor 360 may provide the image data manager 330 with the coordinates of the area where the additional information is detected, and the image data manager 330 uses the coordinates of the area where the additional information is detected. The 3D position of the additional information can be confirmed. In detail, the image data management unit 330 identifies a plurality of stored image data corresponding to the input image data that detects the additional information, and checks the overlapping regions among the plurality of images of the same position and angle. By converting the overlapping area into the 3D image format and applying stereo matching to the 3D converted image, the 3D coordinates where the additional information included in the 3D converted image is located are identified. Through this, additional information may be expressed at a location close to reality through a plurality of images having the same location and angle, thereby providing a more accurate and reliable 3D map or augmented reality service. In the past, the administrator manually mapped the additional information to the image, but through the image data management server of the present invention, the administrator additionally maps the additional information to the correct location without the hassle of having to directly map or input a lot of data. There is an advantage to express.

5 is a flowchart illustrating an image data processing method operated by an image data management server according to an embodiment of the present invention. Hereinafter, the detailed operation of the image data management server will be described by explaining the procedure of the image data processing method with reference to the above-described components and FIG. 5.

First, the image data input unit 310 receives image data from the outside. For example, the image data generated by the image data input device may be received through a communication network, or image data obtained by an external device may be input through a terminal such as a USB device (step 51).

Next, the input image data is transferred to the image data matching unit 32, and the image data matching unit 32 checks whether the stored image data matching the input image data exists in the image data DB 350 ( Step 52). In detail, the image data matching unit 320 preferentially reflects the position information, the direction information, the time information, the weather information, etc. included in the input image data, and corresponds to the plurality of input image data from the image data DB 350. The stored image data is detected as a candidate group. Each image of the plurality of stored image data included in the detected candidate group and the image of the input image data are applied to an image matching algorithm to confirm a matching ratio of the two images, and the stored image having a relatively high matching ratio. The decision is made to match the data. As such, the image data matching unit 320 reflects the location information, the direction information, the time information, the weather information, and then matches the input image data by performing image matching on the images for the selected candidate group. Since it can be confirmed, it is possible to detect more accurately matched image data, it is possible to increase the reliability of the image data. Accordingly, the image data management server of the present invention can provide more accurate and reliable image data when applied to augmented reality.

Next, if it is confirmed that the stored image data corresponding to the input image data exists (53-Yes), the image data matching unit 320 provides the result to the image data providing unit 340, and the image data preparation Study 340 detects the corresponding stored image data from the image data DB 350 (step 54).

Next, the image data providing unit 340 provides a result value indicating that there is stored image data corresponding to the input image data and the stored image data identified in step 54 to the image data input device (step 55).

On the other hand, if it is determined that the stored image data corresponding to the input image data does not exist (53-No), the image data matching unit 320 provides the result to the image data providing unit 340, and the image data is generated. Study 340 provides the image data input device with a result value indicating that there is no stored image data corresponding to the input image data (step 56).

The image data manager 330 updates and stores the stored image data, which is determined to be matched with the input image data, by the image data matching unit 320 to the input image data, and the information identified by the image matching unit 320. That is, location information, direction information, time information, weather information, etc. of the input image data are stored in the area where the information about the image data is stored, and the image included in the input image data is stored in the area where the actual image is stored. (Step 57).

Furthermore, in step 57, the image data manager 330 automatically generates index information for efficiently searching for a stored image using time information and weather information according to a predetermined rule, and stores the index information in the image data DB 350. .

In step 57, when the image data manager 330 stores the stored image data, when there are a plurality of image data for the same position and angle, the image data manager 330 may further extract and store 3D data using the plurality of image data. Can be. Specifically, by checking the overlapping areas among the plurality of images for the same position and angle, converting the overlapping areas into a 3D image format, and applying stereo matching to the 3D converted image, The feature points of the included subjects are extracted, and the extracted feature points are stored as 3D data. In this case, a plurality of images having the same position and angle may exist, so that a more realistic 3D image may be realized and more accurate and reliable 3D data may be extracted based on the same.

Furthermore, steps 51 to 57 described above are repeatedly performed until the operation of the image data processing method ends.

In an embodiment of the present invention, the image data DB is updated by using the input image data input in the process of receiving image data from the user terminal, matching the result, and providing the result, but the present invention is limited thereto. The present invention is not, it is enough to perform the operation of automatically building a DB using the image data provided from a plurality of user terminals. For example, even if only the image data is input without receiving a result corresponding to the image data from the user terminal, the input image data may be updated and stored in the DB if it is determined that the input image data matches the stored image data. In this case, steps 54 to 56 described above may be omitted.

Additionally, in the image data processing method according to an embodiment of the present invention, the operation of confirming additional information from the input image data may be further performed. The checking of the additional information from the input image data may be performed by the additional information processor 360. The checking of the additional information may be performed between the steps 53 to 57. First of all, if the additional information is included in the input image data, and if the additional information is included in the input image data, If the additional information is not included in the input image data without additionally detecting the additional information in the image included in the input image data, a character detection algorithm is applied to the image included in the input image data. To detect additional information such as a predetermined character, direction indication, etc. from the image.

In addition, the additional information processor 360 may provide the image data manager 330 with the coordinates of the area where the additional information is detected, and the image data manager 330 uses the coordinates of the area where the additional information is detected. The 3D position of the additional information can be confirmed. In detail, the image data management unit 330 identifies a plurality of stored image data corresponding to the input image data that detects the additional information, and checks the overlapping regions among the plurality of images of the same position and angle. By converting the overlapping area into the 3D image format and applying stereo matching to the 3D converted image, the 3D coordinates where the additional information included in the 3D converted image is located are identified. Through this, the administrator who manages the image data DB 350 can reduce the burden of manually inputting additional information, and there is an advantage of efficiently constructing additional information with high user utilization. In addition, through a plurality of images having the same location and angle, the additional information can be expressed in a location close to the actual, it is possible to provide a more accurate and reliable 3D map or augmented reality service.

Claims (16)

In the image data processing method,
Receiving input image data from outside;
Checking whether the input image data matches the stored image data previously stored in the database;
Storing the input image data corresponding to the stored image data in a database;
And providing a stored image data stored in a database. The image data processing method of claim 1, wherein the input image data includes location information, direction information, time information, and an image. The method of claim 1, wherein the stored image data includes location information, direction information, time information, weather information, and an image. The method of claim 1,
And generating additional information including the detected character from the image included in the input image data. The method of claim 1, wherein the receiving of the input image data comprises:
And receiving the input image data together with the user's location request from the user terminal. The method of claim 5,
And providing the stored image data corresponding to the input image data to a user terminal. In the image data input device,
A camera unit for photographing an image,
A location information checking unit for checking the latitude and longitude coordinates of the area where the image data input device is located;
A direction information processor for checking a direction of the camera provided in the image data input device;
An image data generation unit for generating image data by combining time information checked therein, the image provided from the camera unit, the location information provided from the location information processing unit, and the direction information checked from the direction information processing unit; Image data input device characterized in that it comprises a. The image data input device of claim 7, wherein the direction information processor includes a direction sensor and checks direction information checked through the direction sensor. The image data input apparatus of claim 7, wherein the direction information processor checks the direction information using information identified through an acceleration sensor and a magnetic field sensor. The image data input apparatus of claim 7, further comprising an additional information processor configured to extract and provide additional information from the image provided by the camera unit. In the image data processing apparatus,
An image data input unit for receiving input image data from an external device,
An image data matching unit configured to check whether the input image data matches the stored image data previously stored in the image data DB;
An image data manager configured to store and manage the input image data corresponding to the stored image data in an image data DB;
And an image data providing unit for providing stored image data stored in the image data DB. The image data processing apparatus of claim 11, wherein the input image data includes location information, direction information, time information, and an image. The image data processing apparatus of claim 11, wherein the stored image data includes location information, direction information, time information, weather information, and an image. 12. The method of claim 11,
And an additional information processor configured to generate additional information including text detected from an image included in the input image data. The method of claim 11, wherein the image data input unit,
And the input image data is input together with a user's location confirmation request from a user terminal. The method of claim 15, wherein the image data providing unit,
And the storage image data corresponding to the input image data is provided to the user terminal.
KR1020130028086A 2012-06-06 2013-03-15 Method for storing image data and apparatus for thea same KR20130137075A (en)

Priority Applications (3)

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US13/909,718 US20130329061A1 (en) 2012-06-06 2013-06-04 Method and apparatus for storing image data
EP13170712.7A EP2672401A1 (en) 2012-06-06 2013-06-05 Method and apparatus for storing image data
CN2013102228408A CN103473254A (en) 2012-06-06 2013-06-06 Method and apparatus for storing image data

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US201261656133P 2012-06-06 2012-06-06
US61/656,133 2012-06-06

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