JP2008271106A - Mobile imaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile imaging device which simultaneously photographs front, left, and right images of a sealed surface of a cylindrical object. <P>SOLUTION: The mobile imaging device has a mobile terminal main body, a camera part 100 which is provided at one edge of the mobile terminal main body, a display part provided on a side of the mobile terminal main body, and an operation part provided on a side of the mobile terminal main body. The camera part 100 includes a left side 90-degree prism 101a and a right side 90-degree prism 101b which are arranged so as to caliper the sealed surface on the cylindrical member from left and right, a convex lens 103 which condenses input light from the sealed surface and input light from the plurality of side face projection prisms, and an image sensor 104 on which input light that is condensed through the convex lens 103 is formed into an image. The camera part 100 simultaneously photographs a front image of the sealed surface, and left and right images of the sealed surface through the plurality of side face projection prisms. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a portable photographing apparatus capable of photographing a bicycle that has been stolen or illegally dumped, confirming the owner, making a discovery contact, and holding report information.

  2. Description of the Related Art Conventionally, a system for reading a tag has been studied in order to search for a neglected bicycle or the like, and an apparatus for reading bicycle information from a bar code or an IC chip has been proposed (for example, Patent Document 1, Patent Document). 2).

JP 2003-256960 A JP 2005-235133 A

In a conventional portable photographing device, it is necessary to prepare a separate reading tag such as a barcode or an IC chip, and information (image information) for judging the characteristics of the bicycle is associated with owner information. In addition, there is a problem that it is necessary to prepare another photographing apparatus.
In addition, there is a problem that a financial burden is generated on the user side by newly introducing a barcode or an IC tag.

  On the other hand, it is conceivable to use an existing crime prevention registration sticker as it is to shoot as an image, but a photographing device that can store character-recognized data by image processing is indispensable, and the crime prevention registration sticker is photographed to recognize characters. Therefore, since the crime prevention registration sticker is affixed to the columnar member of the bicycle in a cylindrical shape, there has been a problem that it is necessary to shoot a plurality of times and combine the images.

  An object of the present invention is to obtain a portable photographing device capable of photographing a character on a seal surface attached to a cylindrical member at one time.

  A portable photographing device according to the present invention is a portable photographing device for photographing characters on a seal surface affixed to a cylindrical member and reading the characters by image processing, and is provided at one end of the portable terminal body and the portable terminal body. An imaging unit, a display unit provided on the side surface of the mobile terminal body, and an operation unit provided on the side surface of the mobile terminal body, the imaging unit sandwiching the seal surface on the cylindrical member from the left and right A plurality of side projection prisms to be arranged, a convex lens that collects input light from the seal surface and input light from the plurality of side projection prisms, and input light that is collected via the convex lens are imaged. A front image of the seal surface and left and right images of the seal surface via a plurality of side surface projection prisms.

  According to the present invention, by using an imaging unit (camera unit) having a plurality of side surface projection prisms, the character on the seal surface attached to the cylindrical member can be captured at a time.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing the overall configuration of a portable photographing apparatus according to Embodiment 1 of the present invention.
2 is a side view showing a subject (bicycle) photographed by the portable photographing device shown in FIG. 1, and FIGS. 3 to 5 are actual security registration stickers attached to the bicycle in FIG. It is explanatory drawing which shows how it looks.

  In FIG. 1, the portable photographing device is provided at a rectangular parallelepiped portable terminal body 1 suitable for carrying, an operation unit 2 and a display unit 3 provided on a side surface of the portable terminal body 1, and a distal end portion of the portable terminal body 1. And the photographing unit 10.

  When taking a photograph using the portable photographing apparatus configured as shown in FIG. 1, when the photographing unit 10 is directed toward the subject while supporting the portable terminal body 1, the subject is displayed as a moving image on the display unit 3. Therefore, the operation unit 2 is operated in the optimum display state to complete photographing. FIG. 1 shows an example in which the crime prevention registration sticker is photographed and displayed on the display unit 3.

Next, the actual appearance of the crime prevention registration sticker attached to the bicycle will be described with reference to FIGS.
In FIG. 2, a crime prevention registration sticker 6 is affixed to, for example, a cylindrical member 5 that is easy to see from the top of the structure of the bicycle 4 that is the subject.

  When viewed from the upper surface of the cylindrical member 5, the crime prevention registration sticker 6 looks differently as shown in FIGS. 3 to 5 according to the angle of view (field of view). 3 shows a case where the field of view is deflected to the right side of the crime prevention registration sticker 6, FIG. 4 shows a case where the field of view is located at the center of the crime prevention registration sticker 6, and FIG. Shows the case.

3 to 5, arrows 6 a, 6 b, and 6 c indicate ranges that are difficult to see due to the curved portion of the cylindrical member 5.
In FIG. 3, the range 6a of the left curved surface portion of the security registration sticker 6 is difficult to see from the front, and in FIG. 5, the range 6c of the right curved surface portion of the security registration sticker 6 is difficult to see from the front. On the other hand, in FIG. 4, the left and right side portions of the crime prevention registration sticker 6 appear to be curved.

  3 to 5, when the seal surface of the crime prevention registration sticker 6 is photographed using a general camera, the left and right side portions are distorted even if the seal surface is photographed from the front of the crime prevention registration sticker 6. Processing makes it difficult to read characters.

Therefore, the photographing unit 10 of the portable photographing apparatus is configured as shown in FIG. FIG. 6 is an enlarged cross-sectional view showing the configuration of the camera unit 100 provided in the photographing unit 10, and is shown in association with the crime prevention registration sticker 6 attached to the columnar member 5 of the bicycle 4.
In FIG. 6, the camera unit 100 of the photographing unit 10 includes a left-side right-angle prism 101 a, a right-side right-angle prism 101 b, an optical path length correction glass 102, a convex lens 103, and an image sensor 104. Each dashed arrow indicates an optical path from the crime prevention registration sticker 6 to the image sensor 104.

The left side surface right angle prism 101a and the right side surface right angle prism 101b sandwich the cylindrical member 5 from the left and right, the left side surface right angle prism 101a projects the left side surface portion of the column member 5 in a right angle direction, and the right side surface right angle prism 101b is a column member. 5 is projected in a right angle direction.
The optical path length correction glass 102 supports the left-side right-angle prism 101a and the right-side right-angle prism 101b, and is interposed between the security registration sticker 6 and the convex lens 103, and reduces light aberration in the near-infrared region. .

  The convex lens 103 receives light incident from the security registration sticker 6 via the left-side right-angle prism 101a, right-side right-angle prism 101b, and the optical path length correction glass 102, and from the front of the security registration sticker 6 via the optical path length correction glass 102. The input light is condensed to form an image on the image sensor 104. At this time, as indicated by the dashed arrows, light from all surfaces of the crime prevention registration sticker 6 is uniformly imaged on the image sensor 104.

  The image sensor 104 converts the light imaged by the convex lens 103 into a video signal and outputs it to an image processing circuit (not shown). The image-processed video is output to the display unit 3 of the mobile terminal body 1, stored in the storage unit at the operation timing of the operation unit 2, and further printed out as necessary.

As described above, the photographing unit 10 (camera unit 100) of the portable photographing apparatus according to Embodiment 1 of the present invention includes the left side right-angle prism 101a and the right side right-angle prism 101b, the optical path length correction glass 102, and the convex lens 103. And the image sensor 104, and not only the front image of the crime prevention registration sticker 6 but also the left and right images are picked up at the same time. Characters can be read reliably.
As a result, it is possible to obtain a portable photographing device that can effectively perform actual photography of a stolen or illegally dumped bicycle, owner confirmation, discovery notification, and reporting information holding.

Embodiment 2. FIG.
In the first embodiment (FIG. 6), night shooting is not considered, but the openable / closable illumination unit 200 shown in FIGS. 7 and 8 is combined with the camera unit 100 as shown in FIG. You may comprise so that imaging | photography can be carried out also at night.
7 and 8 are side views showing the illumination unit 200 used in Embodiment 2 of the present invention. FIG. 7 shows a closed state, and FIG. 8 shows an open state. FIG. 9 is a side view showing a shooting state in which the camera unit 100 and the illumination unit 200 are combined.

In general, auxiliary light is required for photographing at night, but even when photographing using a normal flash, light is uniformly emitted to the security registration sticker 6 locally attached to the cylindrical member 5. Difficult to irradiate.
However, by using the illumination unit 200 shown in FIGS. 7 to 9, even at night, it is possible to shoot by irradiating uniform illumination light onto the crime prevention registration sticker 6 on the cylindrical surface.

.
7 and 8, the illumination unit 200 includes a left reflecting mirror 201a and a right reflecting mirror 201b, a left light source 202a and a right light source 202b, a hinge portion 203, a left case 204a and a right case 204b. Each broken line arrow indicates an irradiation light path from the left light source 202a and the right light source 202b to the crime prevention registration sticker 6.

  The left reflecting mirror 201a and the right reflecting mirror 201b have a ¼ spherical shape that can be opened and closed to the left and right, and in a closed state as shown in FIG. 7, are combined together to form a hemisphere (dome). To do. The hemispherical reflector dome is configured to cover the columnar member 5 to which the crime prevention registration sticker 6 is attached in the vertical direction from the hemispherical top to the center of the sphere.

  The left light source 202a and the right light source 202b are disposed opposite to the upper ends of the left reflecting mirror 201a and the right reflecting mirror 201b, and a plurality of the left light source 202a and the right light source 202b are disposed on the bottom circumferential portion of the hemisphere as needed. Thereby, the dome-shaped reflected light is configured to be uniformly irradiated on the entire surface of the crime prevention registration sticker 6.

  The left case 204a and the right case 204b store and support the left reflecting mirror 201a and the right reflecting mirror 201b, and the left light source 202a and the right light source 202b, respectively, and are hinges provided at a connection portion with the mobile terminal body 1 Centering on the part 203, as shown in FIG.7 and FIG.8, it can be opened and closed in the left-right direction.

FIG. 9 shows a state in which the illumination unit 200 is combined and integrated with the camera unit 100, and shows a state in which the seal surface of the crime prevention registration sticker 6 on the cylindrical member 5 is photographed.
In FIG. 9, the left case 204a and the right case 204b sandwich the cylindrical member 5 portion of the bicycle 4 from the left and right so that the irradiation light quantity from the left light source 202a and the right light source 202b to the crime prevention registration sticker 6 is always uniform. It is configured.

  That is, in the left case 204a and the right case 204b, the left reflecting mirror 201a and the right reflecting mirror 201b forming the hemisphere are arranged so as to surround the entire camera unit 100, and the left reflecting mirror 201a The left reflecting mirror 201 a is disposed on the left side surface of the security registration sticker 6.

  As described above, the portable photographing apparatus according to Embodiment 2 of the present invention includes the dome-shaped illumination unit 200 that can cover the camera unit 100, and the illumination unit 200 can be opened and closed to the left and right. It has a mirror 201a and a right reflecting mirror 201b, and a left light source 202a and a right light source 202b.

As a result, the characters of the existing crime prevention registration sticker 6 are photographed by the camera unit 100, and a clear image is obtained even at night by using the auxiliary light from the left light source 202a and the right light source 202b of the illumination unit 200 as necessary. Can be taken, and the written characters on the crime prevention registration sticker 6 can be reliably read from one photographed image.
Further, since the left case 204a and the right case 204b are configured to be opened and closed to the left and right via the hinge portion 203, they can be easily disposed on the outer peripheral portion of the camera portion 100.

It is a perspective view which shows the whole structure of the portable imaging device which concerns on Embodiment 1 of this invention. It is a side view which shows the to-be-photographed object (bicycle) image | photographed with the portable imaging device of FIG. It is explanatory drawing which shows how the crime prevention registration sticker in FIG. 2 looks. It is explanatory drawing which shows how the crime prevention registration sticker in FIG. 2 looks. It is explanatory drawing which shows how the crime prevention registration sticker in FIG. 2 looks. It is explanatory drawing which shows the imaging | photography state by Embodiment 1 of this invention. It is a side view which shows the illumination part by Embodiment 2 of this invention. It is a side view which shows the open state of the illumination part by Embodiment 2 of this invention. It is explanatory drawing which shows the imaging | photography state by Embodiment 2 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Mobile terminal main body, 2 Operation part, 3 Display part, 4 Bicycle, 5 Cylindrical member, 6 Crime prevention registration sticker, 10 Shooting part, 100 Camera part, 101a Left side surface right angle prism, 101b Right side surface right angle prism, 102 , 103 Convex lens, 104 Image sensor, 200 Illumination part, 201a Left reflecting mirror, 201b Right reflecting mirror, 202a Left light source, 202b Right light source, 203 Hinge part, 204a Left case, 204b Right case.

Claims (5)

A portable photographing device for photographing characters on a seal surface attached to a cylindrical member and reading the characters by image processing,
A mobile device body,
A photographing unit provided at one end of the mobile terminal body;
A display unit provided on a side surface of the mobile terminal body;
An operation unit provided on a side surface of the mobile terminal body,
The photographing unit
A plurality of side surface projection prisms arranged so as to sandwich the sealing surface on the cylindrical member from the left and right;
A convex lens that condenses input light from the sealing surface and input light from the plurality of side surface projection prisms;
An imaging element on which the input light condensed through the convex lens is imaged,
A portable photographing apparatus that simultaneously photographs a front image of the seal surface and a left and right image of the seal surface via the plurality of side surface projection prisms. The plurality of side surface projection prisms are:
A left-side right angle prism disposed on the left side of the sealing surface;
The portable photographing device according to claim 1, comprising a right-side right-angle prism disposed on a right side of the seal surface.   The portable photographing apparatus according to claim 1, wherein the seal surface is a seal surface of a crime prevention registration sticker attached to a columnar member of a bicycle. An illumination unit for irradiating the front surface and the left and right surfaces of the sealing surface with a uniform light amount
The illumination unit is
A left reflecting mirror disposed on the left side of the sealing surface;
A right reflecting mirror disposed on the right side of the sealing surface;
A left light source disposed opposite to one end of the left reflecting mirror;
A right light source disposed opposite to one end of the right reflecting mirror;
A left case for storing and supporting the left reflecting mirror and the left light source;
A right case that houses and supports the right reflecting mirror and the right light source;
The portable imaging device according to any one of claims 1 to 3, wherein the left reflecting mirror and the right reflecting mirror have a hemispherical shape surrounding the imaging unit. The left case and the right case are
Having a hinge portion provided at a connection portion with the mobile terminal body;
The portable photographing apparatus according to claim 4, wherein the portable photographing apparatus is configured to be openable and closable from side to side with respect to the hinge portion.

Images