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Image display system, terminal, method, and program

Inactive Publication Date: 2019-04-04
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention allows for easily acquiring and displaying a second image based on the position and orientation of a mobile terminal that has captured a first image. This is useful for users who want to capture images of specific places they are facing.

Problems solved by technology

It takes much time to search many images acquired based only on a position for an image in which a particular place is captured.
In security performed in a wide range, since it is demanded to reduce time taken at one place, it is difficult to use the art disclosed in Patent Literature 1 for security including detection of a suspicious object.

Method used

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  • Image display system, terminal, method, and program
  • Image display system, terminal, method, and program
  • Image display system, terminal, method, and program

Examples

Experimental program
Comparison scheme
Effect test

first example embodiment

[0035]FIG. 1 is a schematic diagram of an image display system 100 according to the present example embodiment. The image display system 100 has a mobile terminal 110 and a server 150. The mobile terminal 110 and the server 150 are connected to each other via wired connection or wireless connection via a network 190 such as the Internet. The image display system 100 may include devices such as another server, another mobile terminal, or the like. The mobile terminal 110 is a terminal that is carried by a customer and has an image capture function using a camera and a function of displaying an image acquired from the server 150. The server 150 is a server that is installed at any location and performs storage and acquisition of an image.

[0036]FIG. 2 is a general configuration diagram of the mobile terminal 110 and the server 150 according to the present example embodiment. Note that each of the mobile terminal 110 and the server 150 may be formed of a single device or may be formed o...

second example embodiment

[0105]In the present example embodiment, a position and an orientation of a pre-stored past image is displayed on a map, and a user is then notified that there is a past image close to the current position. An image display system 200 according to the present example embodiment has the same device configuration as that of the first example embodiment.

[0106]FIG. 8 is a front view of the display 113 of the mobile terminal 110 displaying peripheral information. In response to startup of an image display program according to the present example embodiment, the mobile terminal 110 transfers to a state of displaying peripheral information on the display 113 as illustrated in FIG. 8. The display 113 displays a map C1, a current marker C2, position markers C3, orientation markers C4, and a panorama marker C5 as peripheral information.

[0107]The map C1 is a map of a predetermined range about the current position of the mobile terminal 110 as the center. The current position of the mobile term...

third example embodiment

[0128]In the present example embodiment, information on an object included in a current image or a past image is displayed by using an object recognition technology. An image display system 300 according to the present example embodiment has the same device configuration as that of the first example embodiment.

[0129]FIG. 11 is a front view of the display 113 of the mobile terminal 110 accepting region designation. In response to startup of an image display program according to the present example embodiment, the mobile terminal 110 transfers to a state of accepting region designation on the display 113 as illustrated in FIG. 11. The display 113 displays a past image D1, a frame D3 indicating a designated region, and a button D4 used for determining a region.

[0130]For example, the past image D1 is acquired by the image display method according to the first example embodiment and received from the server 150. The current image may be used instead of the past image D1. The frame D3 ind...

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Abstract

The present invention provides an image display system, a terminal, a method, and a program that can quickly and accurately display an image corresponding to a particular location. An image display system according to one example embodiment of the present invention includes: a current image acquisition unit configured to acquire a first image captured by a mobile terminal; an information acquisition unit configured to acquire information including a position and an orientation of the mobile terminal that has captured the first image; a past image acquisition unit configured to acquire a second image based on the position and the orientation of the mobile terminal and a position and an orientation associated with the second image stored in the past in a storage device; and a difference detection unit configured to detect a difference between the first image and the second image.

Description

TECHNICAL FIELD[0001]The present invention relates to an image display system, a terminal, a method, and a program that display an image captured in the past at a particular location.BACKGROUND ART[0002]In security of an area, detection of a suspicious object is performed. A suspicious object may be an explosive or a toxic substance, for example, which is basically an object which is not usually placed at the place. Thus, detection of a suspicious object requires determination as to whether or not the object is usually placed.[0003]In particular, in security of an important event, surveys are performed over multiple times, and the personnel may be different for each survey. For example, in security of an important person, personnel who perform a survey in advance on a planned route and personnel who perform safety check immediately before the important person passes by are often different in actual practice. It is difficult to report all, to the personnel who perform check immediate...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/32G06F1/16H04N5/232G06F16/587G06V20/00
CPCG06K9/00671G06K9/3241G06F1/1686H04N5/23229G06F16/587G06V20/00G06V20/52G06V20/20H04N23/80
Inventor SAKAMOTO, SHIZUO
Owner NEC CORP
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