KR20080035892A - Image playback apparatus for providing thumbnail search using image shot and method of the same - Google Patents

Abstract

A DVR(Digital Video Recorder) system for supporting thumbnail search by using an image shot, an image reproduction apparatus, an image reproduction method, and a recording medium thereof are provided to display image shots by predetermined section on a reproduced image, thereby enabling a user to search a desired section in a reproduction file conveniently by reproducing an image after a corresponding image shot when the user selects the image shot. An image reproduction unit(330) reproduces an input image. An image shot display unit(350) displays at least one image shot included into the input image according to time during the reproduction of the image. The image reproduction unit reproduces an image after a selected image shot if one of the displayed image shots is selected. An image storage unit(320) stores reproduction files and reads out a corresponding reproduction file according to the selection of reproduction file and an execution command. A time setting unit(360) sets time intervals. An image shot extraction unit(340) extracts the image shots at time intervals from the read reproduction file.

Description

Image Playback Apparatus for Providing Thumbnail Search Using Image Shot and Method of the Same}

1 is a view for explaining an execution screen of a conventional playback file.

2 is a view for explaining a monitoring system using a DVR system according to the present invention.

3 is a block diagram illustrating an internal configuration of an image reproducing apparatus according to an embodiment of the present invention.

4 is a diagram illustrating an execution screen of a playback file according to an exemplary embodiment of the present invention.

5 is a flowchart illustrating an image reproducing method according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

300: video playback device

310: control unit

320: image storage unit

330: video playback unit

340: image shot extracting unit

350: image shot display unit

360: time setting section

370: time insertion unit

The present invention relates to an image reproducing apparatus and method for supporting a thumbnail search using an image shot. More particularly, the present invention relates to an image reproducing apparatus and a method for extracting image shots at predetermined time intervals along with execution of a reproduction file. The present invention relates to a video reproducing apparatus and method for providing a thumbnail search.

The DVR (Digital Video Recorder) system can provide users with video captured from cameras installed in various locations through CCTV and provide backup video when necessary. That is, the user may investigate a crime or a problem occurring in a specific region through the backup image provided by the DVR system. Video data stored in the DVR system may be displayed through the DVR system or a remote terminal. In general, the video data is displayed on the screen in a panorama playback manner. The panorama reproduction method will be described with reference to FIG. 1.

1 is a view for explaining a panorama playback method of a conventional playback file.

As shown in FIG. 1, a playback file is driven through a predetermined application maintained in a DVR system or the remote terminal, and may change a frame currently being played according to an input from a user. In other words, the user can move the current position identifier displayed on the screen to a desired position, and play it by moving to a desired frame position among the currently-running playback files. The panorama playback method generally used is a method of changing a frame to be played by moving a position of a current location identifier displayed on a screen.

However, this panorama playback method causes considerable inconvenience in DVR system to quickly search for a specific section of a desired playback file. For example, when playing a backup video of a relatively restricted area, such as a safe, a secure area, or a financial automation device, the user watches the playback video from start to finish to see if anyone has entered the area. Search or search while moving the current location identifier to a particular section. Further, given the predetermined loading time for the frames from the corresponding section to be played back according to the moved current position identifier, the user must spend a considerable time searching for the desired image. Therefore, there is an urgent need for a more advanced technical idea capable of quickly and conveniently searching for a desired section of a playback file.

The present invention has been made to solve the problems of the prior art as described above, by displaying the image shot of the frame on the current screen for each predetermined section, and if selected from the displayed image shot to play back from the frame, quick and convenient An image reproducing apparatus and method for supporting a thumbnail search for searching a desired section in a reproduction file are provided.

In order to achieve the above object and to solve the above-mentioned problems of the prior art, the DVR system according to an aspect of the present invention is an image playback unit for playing an input video, and at least one image included in the video during the playback of the video; And an image shot display unit for displaying a shot according to time, and wherein the image reproducing unit reproduces an image after the selected image shot when any one of the displayed image shots is selected.

According to an aspect of the present invention, an image reproducing apparatus includes: an image shot extractor extracting image shots having a predetermined time interval from a reproduction file, an image reproduction unit reproducing the reproduction file, and at least one or more of the extracted image shots; An image shot display unit displayed on the image reproduced by the unit, and the image reproduction unit controls to move to and reproduce the selected image shot when any one of the image shots displayed on the reproduced image is selected by the image shot display unit; It characterized in that it comprises a control unit.

According to an aspect of the present invention, there is provided a video playback method (A-1) selecting and executing a playback file, (A-2) extracting image shots of a predetermined time interval from the video of the played playback file, Displaying on an image, (A-3) selecting any one of the image shots on which the image shots are displayed, and (A-4) moving to the selected image shot to play the playback file; It is characterized by.

According to another aspect of the present invention, there is provided a video reproducing method (B-1) maintaining playback files in a storage means, and (B-2) reading a corresponding playback file from the storage means according to a user's playback file selection and execution command. (B-3) extracting image shots of a predetermined time interval from the read out file, and (B-4) at least one or more of the extracted image shots are reproduced from the read out file. And displaying the image on the image.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments. For example, the image reproducing apparatus according to the present invention may be used in a DVR system, but is not limited or limited by the DVR system.

2 is a diagram illustrating a monitoring system 200 using the DVR system 210 according to the present invention.

2 illustrates the monitoring system 200 including the DVR system 210 as an example of an image reproducing apparatus according to the present invention. As shown in FIG. 1, the monitoring system 200 may monitor images captured by cameras of at least one or more channels in real time through a closed circuit television (CCTV), and the necessary image data may be a DVR system. Can be backed up to 210. The image data backed up to the DVR system 210 can be searched and read through a remote computer 220 connected through a network. For example, in order to view the image data backed up to the DVR system 210, the user needs to play the DVR system 210 through an input device such as a keyboard or a mouse in a remote computer 220. You can command to search and play the video.

In particular, in an embodiment of the present invention, a user accesses a predetermined application program managed by the DVR system 210 or a user connects to the DVR system 210 using a predetermined application program that may be executed in the computer 220. You can search and browse the backed up image data. Here, although the image data backed up to the DVR system 210 will be described as an example, a thumbnail search is performed for all multimedia data including video or audio data using an image shot according to the present invention. Supported video reproducing apparatus and method may be applied.

In detail, the DVR system 210 receives image data from at least one or more cameras, encodes the received image data by a predetermined compression method such as MPEG, generates reproduction files, and stores the generated reproduction files. Means back up to, for example, a file system. Accordingly, the DVR system 210 receives a playback file selection and execution command from the user in order to read and execute a desired playback file from the playback files backed up to the predetermined storage means. The DVR system 210 extracts image shots of a predetermined time interval from the playback file read from the storage means according to the playback file selection and execution command, and displays the image shots on the playback image of the read playback file. . The image shots may be captured screens of a predetermined time interval constituting the playback file before or after a current playback time. That is, the image shots are images of frames extracted at predetermined time intervals from the reproduction file data, and the user may know what images are included in the reproduction file through the image shots. The image shot according to an embodiment of the present invention may be displayed on a portion of an image currently being reproduced, for example, at a lower portion of the screen.

Accordingly, the user may branch to a specific section of the playback file associated with the corresponding image shots displayed on the screen and view the corresponding image. More specifically, the image shot includes time information on the corresponding frame, that is, the time of the current playback position from the playback start time, and when the specific image shot is selected from the user, the DVR system 210 determines the time. The information is checked and the image after the frame is played. As a result, the user may check an image shot of capturing a playback file at predetermined time intervals and move quickly and conveniently to a section corresponding to an image to be searched.

3 is a block diagram illustrating an internal configuration of an image reproducing apparatus 300 according to an embodiment of the present invention. The video reproducing apparatus 200 may be included in the DVR system 210 of FIG. 2.

As shown in FIG. 3, the image reproducing apparatus 300 includes a control unit 310, an image storage unit 320, an image reproducing unit 330, an image shot extracting unit 340, an image shot display unit 350, and A time setting unit 360 is included. The controller 310 is responsible for overall control of each component of the image reproducing apparatus 300.

The image storage unit 320 stores the playback files and reads out the corresponding playback file according to a user's playback file selection and execution command. The playback file may be a multimedia file including data encoded from at least one camera operated for a DVR system according to a predetermined data compression scheme such as MPEG. In addition, the image reproducing unit 330 reproduces the read reproduction file, and the image shot extracting unit 340 extracts image shots having a predetermined time interval from the read reproduction file, and the image shot display unit 350 ) Processes at least one of the extracted image shots to be displayed on the image reproduced by the image reproducing unit 330. In addition, the time setting unit 360 sets the time interval for the image shot extracting unit 340 to refer to, and the time inserting unit 370 starts corresponding times to the extracted image shots, that is, starts playback. Inserts the times of the current playback position from time. In this case, the image shot display unit 350 may allow the time inserting unit 370 to display image shots having corresponding times inserted in the reproduced image.

For example, at a predetermined time interval set by the time setting unit 360 from a playback file backed up by a DVR system where a video is backed up at a place where monitoring of access of a person is required, such as a safe, a security area, or a financial automation device. The image shot extractor 340 extracts image shots. In this case, when the corresponding playback file is executed and displayed on the screen by the video reproducing unit 330, the image shots extracted by the image shot extracting unit 340 are displayed on the screen on which the playing file is executed. Can be displayed together. Accordingly, the user can quickly move to the position to search while playing back the image shots displayed on the playback screen.

4 is a diagram illustrating an execution screen of a playback file according to an exemplary embodiment of the present invention. As shown in FIG. 4, the image reproducing unit 330 executes a specific reproducing file selected from at least one or more reproducing files stored in the image storing unit 320 to display on the screen. For example, when a time interval of 10 minutes is set in the time setting unit 360, the image shot extractor 340 extracts image shots at 10 minute intervals from the playback file, and the image shot display unit ( 330 displays image shots extracted at intervals of 10 minutes on the playback screen. According to an embodiment of the present invention, the image shot display unit 330 checks the time of the playback screen currently being played and displays a predetermined number of image shots on the playback screen. For example, when the current playback screen is an execution screen of a playback file of a DVR system recorded for 1 hour from 14:00 to 15:00 as shown in FIG. 4, the image shot display unit 330 may display the 14: Image shots of the playback file for one hour from 00 to 15:00 in 10-minute increments can be displayed at the bottom of the screen. That is, the playback screen from 14:00 to 15:00 may further display image shots which are captured images separated by 10 minute intervals. Accordingly, the user may check the image shots at a glance, select an image shot having an image to be searched, and play the play file from a time corresponding to the image shot.

In the above-described example, a certain number of image shots corresponding to the time of the playback screen (from 14:00 to 15:00) are displayed, but the image shot display unit 350 according to an embodiment of the present invention Image shots displayed on the reproduced image may be changed over time. For example, when a time interval of 5 minutes is set in the time setting unit 360, the image shot extractor 340 extracts image shots at 5 minute intervals from the playback file, and the image shot display unit ( 330 may display five image shots including image shots extracted at five minute intervals before and after a current reproduction time on the reproduction screen. For example, if the current playback time is between 14:30 and 14:34, image shots at 5 minute intervals before and after, i.e. 14:20, 14:25, 14:30, 14:35, 14:40 Image shots of time can be displayed. In addition, in order to drive the image shot display unit 330 to display image shots of different time zones, an identifier (<<, >>) in the form of an arrow for selecting an image shot may be clicked on the screen.

Meanwhile, referring to FIG. 3, when any one of the image shots displayed on the reproduced image is selected by the image shot display unit 350, the controller 310 moves to the selected image shot and then moves on to the selected image shot. The image reproducing unit 330 may be controlled to reproduce frames. More specifically, when the time inserting unit 370 extracts the image shot from the play file, the time inserting unit 370 includes time information on at what time the image shot is extracted from the play file. In this case, when the selection of the image shot is input from the user, the controller 310 may control the image reproducing unit 330 to execute a specific section of the time information among the reproduction files. As such, the image shot display unit 350 according to an embodiment of the present invention may display at least one or more of the image shots in which corresponding times are inserted by the time inserting unit 370 on the reproduced image. That is, as shown in FIG. 4, each of the image shots may indicate a time at which the playback file is captured together with the image capturing the playback file.

As a result, the image reproducing apparatus 300 according to the present invention displays an image shot of a corresponding frame on a current screen at a predetermined interval, unlike a conventional panorama reproducing method used for executing an image backed up by a DVR system. When selecting a shot, by displaying the frame of the corresponding time on the screen, it is possible to quickly and conveniently search for a desired section of the playback file.

5 is a flowchart illustrating an image reproducing method according to an embodiment of the present invention.

Referring to FIG. 5, the image reproducing apparatus 300 according to the present invention receives and encodes input image data from at least one camera to generate a reproduction file, and stores the encoded reproduction file in a storage means such as a hard disk. Save it.

Thus, in operation 501, the video reproducing apparatus 200 receives a selection input of the playback file held in the storage means and a command for executing the selected playback file from the user. According to the selection input and the execution command, the image reproducing apparatus 200 reads out and reproduces the corresponding reproduction file from the storage means. In addition to the reproduction, the image reproducing apparatus 300 generates image shots by extracting image shots of a predetermined time interval from the image of the reproduced reproduction file and displaying the image shots on the image of the reproduction file. That is, images captured at predetermined time intervals among the images of the reproduction file are displayed on the image of the executed reproduction file in the form of thumbnails. Therefore, the user can easily check the images of the predetermined time interval included in the playback file.

The user who checks the playback file at the predetermined time interval through the thumbnail image shot selects one of the image shots displayed on the screen. Accordingly, the image reproducing apparatus 300 receives a selection from the user in step 503, and moves to the selected image shot in step 504 to play the playback file. More specifically, when the image shot is extracted from the playback file at predetermined time intervals, the information about the corresponding playback time may be included in the image shot. Therefore, the image reproducing apparatus 300 moves to a time corresponding to the image shot among the reproduction files and displays subsequent frames according to the user's selection.

The image reproducing method according to an embodiment of the present invention processes step 504 of reproducing the reproduced file by moving to the selected image shot, and reproducing a predetermined number of image shots for each before and after the moved image shot. Can be displayed on the video. That is, the predetermined number of image shots before or after a predetermined time may be updated to be displayed on the screen according to the current execution time of the playback file. Accordingly, the user can easily search for a playback file through the thumbnail-shaped image shots corresponding to the currently viewed playback screen.

As a result, the image reproducing apparatus 300 displays the image shot of the frame on the current screen for each predetermined section through the image reproducing method, and reproduces after the corresponding portion of the playback file when the user selects which image shot. It can provide a function to search the desired section quickly and conveniently.

Embodiments of the invention include a computer readable medium containing program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD-ROMs, DVDs, magnetic-optical media such as floppy disks, and ROM, RAM, flash memory, and the like. Hardware devices specifically configured to store and execute the same program instructions are included. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

As described above, the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from such description.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention. .

In an image reproducing apparatus and method for supporting a thumbnail search according to the present invention, by displaying image shots for a predetermined interval in a reproduced image, the image after the image shot is reproduced when a user selects an image shot. You can quickly and conveniently search for the desired section in the playback file.

In addition, the video reproducing apparatus and method for supporting the thumbnail search according to the present invention, when applied to the DVR system to play the backup video, there is an effect that the user can conveniently provide a search for the section to search using the image shot have.

Claims (14)

In the DVR system for playing the video input from at least one camera, An image reproducing unit reproducing the input image; And An image shot display unit for displaying at least one image shot included in the image according to time during reproduction of the image; And the image reproducing unit reproduces the image after the selected image shot when any one of the displayed image shots is selected. The method of claim 1, An image storage unit for storing the play files and reading the play files according to a user's play file selection and execution command; A time setting unit for setting a time interval; And An image shot extracting unit extracting image shots of the time interval from the read out reproduction file; DVR system further comprising. The method of claim 1, A time insertion unit for inserting corresponding times into the extracted image shots More, And the image shot display unit displays at least one or more of the image shots in which the corresponding times are inserted by the time inserter on the reproduced video. The image shot display unit of claim 1, DVR system, characterized in that to display a predetermined number of image shots for each of the extracted image shots before and after the current playback time on the playback video. The method of claim 1, A controller which controls the image reproducing unit to move to and reproduce the selected image shot when any one of image shots displayed on the reproduced image is selected by the image shot display unit; DVR system further comprising. The method of claim 5, wherein the image shot display unit, And a predetermined number of image shots for each of the before and after the moved image shots are displayed on the reproduced image. The method of claim 6, wherein the image shot display unit, DVR system, characterized in that for changing the image shots displayed on the image to be reproduced after being moved to the selected image shot over time. An image shot extracting unit extracting image shots of a predetermined time interval from the playback file; An image reproducing unit for reproducing the reproduced file; An image shot display unit displaying at least one of the extracted image shots on an image reproduced by the image reproducing unit; And A controller which controls the image reproducing unit to move to and reproduce the selected image shot when any one of image shots displayed on the reproduced image is selected by the image shot display unit; Image playback apparatus comprising a. In the method of playing the video, (A-1) selecting and executing the playback file; (A-2) extracting image shots of a predetermined time interval from the image of the executed reproduction file and displaying the image shots on the image of the reproduction file; (A-3) selecting any one of the image shots in which the image shots are displayed; And (A-4) moving to the selected image shot and playing the playback file Image playback method comprising a. The method of claim 9, After the step (A-4), (A-5) displaying a predetermined number of image shots for each of the before and after the moved image shot on the reproduced image Image playback method further comprises. The method of claim 10, In the step (A-5), And changing the image shots displayed on the image to be reproduced after being moved to the selected image shot over time. The method of claim 9, In the step (A-2), Inserting corresponding times into the extracted image shots, and displaying at least one or more of the inserted image shots on the reproduced image. (B-1) maintaining the playback files in the storage means; (B-2) reading the reproduction file from the storage means according to a user's reproduction file selection and execution instruction; (B-3) extracting image shots of a predetermined time interval from the read out file; And (B-4) displaying at least one or more of the extracted image shots on an image in which the read out file is played; Image playback method comprising a. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 9 to 13 on a computer.

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