JP2005276383A - Picture file recording and reproducing apparatus and picture file recording and reproducing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a picture file recording and reproducing apparatus and a picture file recording and reproducing program in which a plurality of picture files photographed simultaneously can be retrieved and analyzed efficiently. <P>SOLUTION: When a plurality of image pick-up picture files recorded in a storage apparatus 103 is desired to be reproduced while synchronizing, first, a file desired to be reproduced while synchronizing is selected by an operation part 109, and operation such as fast forwarding, slow reproduction, temporary stop is performed. Based on this operation, a CPU 108 performs control so that a first picture of the selected file is read from the storage apparatus 103 and it is expanded by a picture expansion part 104, and outputted to a monitor 106. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image file recording / reproducing apparatus and an image file recording / reproducing program.

  In a CCTV (Closed Circuit Television) system that monitors video captured by a camera, the captured video is not only displayed and monitored on a monitor, but also recorded for later confirmation of video or evidence of crime. ing. In video recording, recording has been conventionally performed on video tape using a time-lapse VTR. However, in order to improve reliability, durability, and searchability, recording has recently been performed on a hard disk or an optical disk using a PC or a video disk recorder. There are many cases.

In an actual monitoring site, the monitoring target is often imaged with a plurality of cameras. For example, when the inside of a convenience store is monitored, the entrance / exit, the vicinity of the cash register, and the inside of the store are imaged by different cameras and recorded respectively (for example, see Patent Document 1).
JP 2003-163923 A

  By the way, since the picked-up images are recorded as independent files, they are also reproduced when they are reproduced. Therefore, for example, when the criminal moves from the vicinity of the cash register to the entrance / exit, even if he wants to arrange two images side by side, it cannot be played back in synchronization or controlled by fast-forwarding, slowing, etc. . For this reason, the conventional reproducing apparatus has a problem that the recorded image cannot be efficiently searched or analyzed.

  SUMMARY An advantage of some aspects of the invention is that it provides an image file recording / reproducing apparatus and an image file recording / reproducing program for efficiently searching and analyzing a plurality of captured image files. .

In order to solve the above-mentioned problems, the present invention comprises the following means 1) to 2).
That is,
1) An image file recording / reproducing apparatus used in a monitoring system for recording / reproducing a plurality of image files obtained by photographing the same area from different angles,
Recording means for recording the plurality of image files and time information thereof;
Selection means for selecting an image file to be reproduced from a plurality of image files recorded by the recording means and an image file to be reproduced simultaneously;
Reproduction means for simultaneously reproducing a plurality of image files selected by the selection means based on time information of the image files;
An image file recording / reproducing apparatus comprising:

2) An image file recording / reproducing program for controlling an image file recording / reproducing apparatus used in a monitoring system for recording / reproducing a plurality of image files obtained by photographing the same area from different angles,
A recording step for recording the plurality of image files and time information thereof;
A selection step of selecting an image file to be reproduced and an image file to be reproduced simultaneously from the plurality of image files recorded by the recording step;
A reproduction step of simultaneously reproducing a plurality of image files selected in the selection step based on time information of the image files;
An image file recording / reproducing program comprising:

  According to the `` image file recording / playback apparatus and image file recording / playback program '' of the present invention, the specified file is decompressed in synchronization with the time information, and simultaneously played, fast forwarded, slowed, paused, etc. are displayed. It is possible to provide a playback device and a playback program that can efficiently search and analyze recorded images.

  The best mode for carrying out the invention of an image file recording / reproducing apparatus and an image file recording / reproducing program according to the present invention will be described below with reference to preferred embodiments.

  Hereinafter, an image file recording / reproducing apparatus applied to the present embodiment will be described with reference to the accompanying drawings. FIG. 1 is a block diagram of a PC as an example of an image file recording / reproducing apparatus applied to this embodiment, FIG. 2 is a flowchart for explaining the operation of the image file recording / reproducing apparatus applied to this embodiment, and FIG. Is an example of a playback control screen displayed on a PC monitor, and FIG. 4 is an example of a screen that simultaneously displays four images.

  In describing FIG. 1, reference numerals in FIG. 2 may be referred to.

  In FIG. 1, 101 (101a, 101b ...) is an image input unit, 102 (102a, 102b ...) is an image compression unit, 103 is a storage device such as a hard disk, 104 (104a, 104b ...) is an image expansion unit, 105 is An image output unit 106 is an externally connected monitor, 107 is a memory, 108 is a CPU, 109 is an operation unit such as a mouse or keyboard, 110 is a bus line, each unit is connected to the bus line 110, and the CPU 108 is connected to each unit. I have control.

  3 is a reproduction control screen, 31 is an operation unit, 32 is an image display unit, 33 is a menu unit such as a title bar, menu bar, and tool bar, and 34 is a file display unit.

  Images captured by the image capturing apparatus are input to the image input units 101a and 101b. Then, the CPU 108 controls each unit according to a preset timer, sensor input, etc., digitizes it with the image input unit 101, compresses it with a method such as JPEG or MPEG, and records it as an image file in the storage device 103. .

  A procedure for reproducing the image file recorded in this way will be described. When the playback program is activated, the PC displays a screen as shown in FIG. 3, and displays a list of files on the file display section 34 at the lower right (step S1).

  When a plurality of files are to be reproduced in synchronization, first, the files to be reproduced in synchronization are selected from the file list 64. As a selection method, for example, a plurality of files are selected with the mouse while pressing a control key (step S2).

  When the file selection is completed, the “synchronized playback” button in the operation unit 31 is clicked to synchronize these files (step S3).

  Then, the PC reads the first image of the selected file from the hard disk 103 on the image display unit 32 on the reproduction control screen, decompresses it with the image decompression unit 104, and displays it on the image display unit 32 on the reproduction control screen (step S4).

  A display example of the image display unit 32 at this time is shown in FIG. In this example, the inside of a convenience store store is monitored with four cameras. The first camera and the second camera image the display shelf, the third camera images the vicinity of the cash register, and the fourth camera. Shall capture the vicinity of the entrance. When four image files recorded with images taken by the four cameras are designated in step S2, the four image files are decompressed by the four image decompression units 104, respectively, and the first screen 41 as shown in FIG. Is a display shelf image captured by the first camera, the second screen 42 is an image of the display shelf captured by the second camera, and a third screen 43 is an image of the vicinity of the cash register captured by the third camera. On the fourth screen, the image near the entrance and exit taken by the fourth camera and the four screens are displayed side by side on the image display unit 32.

When it is desired to reproduce the image, the reproduction button on the operation unit 31 is clicked (step S5).
Then, the four image decompression units 104 decompress the four image files in synchronization based on the file time information and display them on the screen (step S6).

  If the user wants to fast-forward, slow-play or pause the image, click the fast-forward button, slow button, pause button, etc. on the operation unit 31 (step S7).

  Then, the PC performs operations such as fast-forwarding, slow playback, and pause while synchronizing the four image expansion units 104 in accordance with the instruction in step S7 (step S8).

  In this way, the playback apparatus of the present invention plays back a plurality of files in synchronization. As a result, images taken from different directions of the monitoring target can be viewed at the same time, so that the recorded images can be efficiently searched and analyzed.

  Note that the image decompression unit may be provided with hardware-type decompression units corresponding to the maximum number of files to be synchronized and played back, or software-type decompression units may be activated for the number of files to be synchronized and played back.

It is a schematic block diagram of the image file recording / reproducing apparatus applied to a present Example. It is a flowchart for demonstrating the image file reproduction | regeneration operation | movement of the image file recording / reproducing apparatus applied to a present Example. It is the figure which showed an example of the reproduction | regeneration control screen of the image file recording / reproducing apparatus applied to a present Example. It is the figure which showed an example of the screen which reproduces | regenerates four image files synchronously with the image file recording / reproducing apparatus applied to a present Example.

Explanation of symbols

101a, 101b ... Image input units 102a, 102b ... Image compression unit 103 ... Storage devices 104a, 104b ... Image decompression unit 105 ... Image output unit 106 ... Monitor 107 ... Memory 108 ... CPU
110 ... Bus line

Claims (2)

An image file recording / reproducing apparatus used in a monitoring system for recording / reproducing a plurality of image files obtained by photographing the same area from different angles,
Recording means for recording the plurality of image files and time information thereof;
Selection means for selecting an image file to be reproduced from a plurality of image files recorded by the recording means and an image file to be reproduced simultaneously;
Reproduction means for simultaneously reproducing a plurality of image files selected by the selection means based on time information of the image files;
An image file recording / reproducing apparatus comprising: An image file recording / reproducing program for controlling an image file recording / reproducing apparatus used in a monitoring system for recording / reproducing a plurality of image files obtained by photographing the same area from different angles,
A recording step for recording the plurality of image files and time information thereof;
A selection step of selecting an image file to be reproduced and an image file to be reproduced simultaneously from the plurality of image files recorded by the recording step;
A reproduction step of simultaneously reproducing a plurality of image files selected in the selection step based on time information of the image files;
An image file recording / reproducing program comprising:

Images