JP2000111978A - Device and method for cancelling swing and tilt for plane photographing - Google Patents

Device and method for cancelling swing and tilt for plane photographing

Info

Publication number
JP2000111978A
JP2000111978A JP10286126A JP28612698A JP2000111978A JP 2000111978 A JP2000111978 A JP 2000111978A JP 10286126 A JP10286126 A JP 10286126A JP 28612698 A JP28612698 A JP 28612698A JP 2000111978 A JP2000111978 A JP 2000111978A
Authority
JP
Japan
Prior art keywords
light beam
camera
tilt
photographing
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10286126A
Other languages
Japanese (ja)
Other versions
JP4270615B2 (en
Inventor
Hidenori Saruwatari
秀憲 猿渡
Yasushi Fukuju
靖 福寿
Yoshiaki Kakinuma
良明 柿沼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP28612698A priority Critical patent/JP4270615B2/en
Publication of JP2000111978A publication Critical patent/JP2000111978A/en
Application granted granted Critical
Publication of JP4270615B2 publication Critical patent/JP4270615B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a device and method for cancelling swing and tilt by which distortion is not caused in a photographic image in the case of photographing a plane original by a still camera. SOLUTION: The device for cancelling the swing and tilt for plane photographing is constituted of an irradiation means A radiating a light beam excellent in directivity, an attaching means B equipped with a function for attaching the means A to the camera 1 or a camera frame 3 and a function for adjusting and confirming the radiation angle of the light beam, a reflection means C normally reflecting the light beam, a light receiving means D capable of confirming the receiving position of the reflected light beam. The method for cancelling the swing and tilt for plane photographing is constituted of a stage to adjust and confirm the light beam radiated by the means A so as to be perpendicular to a lens and an image pickup surface, and a stage to respectively control the pan angle and the tilt angle of the camera so that the alignment of the direction of the light beam radiated to the original with the direction of the light beam reflected by the means C may be confirmed by the means D.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、大型あるいは長尺
の平面原稿を複数回のショットで分割撮影した後、複数
の撮影画像を繋ぎ合わせて原稿を再現する一枚の撮影画
像を形成する場合に、繋ぎ部の寸法誤差、ピント差を発
生させないようにする撮影時のカメラと原稿の正常な位
置関係を得るための平面撮影あおり解消装置及び方法に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case where a large or long planar document is divided and photographed by a plurality of shots, and then a plurality of photographed images are joined to form a single photographed image for reproducing the document. In addition, the present invention relates to an apparatus and a method for eliminating a planar photographing tilt for obtaining a normal positional relationship between a camera and a document at the time of photographing so as not to cause a dimensional error and a focus difference of a joint.

【0002】[0002]

【従来の技術】建築内装材の印刷に用いる種々な木目模
様や石目模様を有する大型の天然木材板や石材等を原稿
として写真製版を行う場合、これまで、超大型の製版カ
メラが使用され、一旦、銀塩写真感光フィルムに撮影さ
れた画像を基に写真製版工程を行ってきた。製版工程
は、写真技術を利用する方法と、画像をスキャナーで読
み込んでデジタルデータ化し、コンピュータによるデジ
タル画像処理を利用する方法があった。今日では、CC
D(荷電結合素子)撮像面を有するデジタルカメラが好
適に使用されるようになり、原稿の有する画像情報が直
接デジタル画像情報に変換されてコンピュータに記録さ
れるようになってきている。一般に、上記の原稿は大型
あるいは長尺なものを撮影するケースが多く、原稿画像
が製版カメラの感光性フィルムの最大寸法をオーバーす
るので、また、デジタルカメラの場合には、デジタルカ
メラの撮像面のCCD画素数の制約があって、一回の撮
影では解像度が落ちるので、原稿画面を複数回に分割し
て撮影し、後から複数の画像を繋ぎ合わせる方法が行わ
れている。
2. Description of the Related Art When performing photoengraving using a large natural wood board or stone material having various grain patterns or stone patterns used for printing of interior building materials, an ultra-large plate making camera has been used. A photoengraving process has been performed once based on an image photographed on a silver halide photographic film. The plate making process includes a method using a photographic technique and a method using an image read by a scanner to be converted into digital data and using digital image processing by a computer. Today, CC
A digital camera having a D (charge-coupled device) imaging surface has been used favorably, and image information of a document has been directly converted into digital image information and recorded on a computer. In general, the above-mentioned originals often photograph large or long objects, and the original image exceeds the maximum size of the photosensitive film of the plate-making camera. Due to the limitation of the number of CCD pixels described above, the resolution is reduced in one shot, so that a method of dividing the original screen into a plurality of shots and shooting a plurality of images later is performed.

【0003】[0003]

【発明が解決しようとする課題】しかるに、従来の超大
型の製版カメラは、原稿面、レンズ面、撮像面(ピント
面)の3面がそれぞれ平行な関係をもって移動できの
で、分割撮影によって撮影された個々の画像における上
下、左右の寸法誤差は低く抑えられるが、スタジオに大
きなカメラスペースを必要とし、原稿架台への原稿の取
り付け、原稿の横方向への移動が容易でない等の操作上
の問題に加え、従来の銀塩感光材料に撮影された連続調
写真画像を経由してCEPS(COLOR ELECTRONIC PREPR
ESS SYSTEM)の製版スキャナーによってデジタルデータ
に変換しなければならないという工程上手間のかかる問
題がある。デジタルカメラは、カメラ自体がコンパクト
であり、大型原稿を原稿架台に適宜に固定し(垂直であ
る必要は全くない)、この原稿平面に対してカメラのレ
ンズ面、撮像面を平行にして、カメラの方を平行移動す
ればよいので、操作性に優れ、しかも直接デジタル画像
データを得ることができ、今日の製版のデジタルデータ
化の流れに沿うものである。しかるに、デジタルカメラ
は、撮像面積が4x5インチ乃至は8x10インチ程度
のスティールカメラであって、レンズ面と撮像面との平
行関係は満足されても原稿面との平行関係を保って撮影
できることは全く保証されていない。図1は、従来のデ
ジタルカメラによる平面原稿撮影時に起こり易い不正な
撮影条件の説明図である。デジタルカメラ1による平面
原稿2の撮影の場合、デジタルカメラ1のレンズ面S1
と、撮像面S2と、原稿面S3とが総て平行関係になけ
ればならないのに、図1に示すように、デジタルカメラ
1のパン角Δθ(水平面におけるデジタルカメラの光軸
と原稿平面からの垂直線による角度)が存在する状態で
撮影を行ってしまう場合が多い。また、図示はされてい
ないが、デジタルカメラ1のチルト角Δτ(鉛直面にお
けるデジタルカメラの光軸と原稿平面からの垂直線によ
る角度)についても同様である。すなわち、原稿の左
右、上下で寸法精度のある撮影画像を得るためには、Δ
θ=Δτ=0でなければならない。図2は、パン角度の
撮影画像に及ぼす影響の説明図である。図2において、
実線で囲んだ画像は、横長原稿を左右各々2分割して撮
影したうちの1回目の撮影によるもので、点線で囲んだ
画像は2回目の撮影によるものである。図2(a)は、
Δθ=0の正常な撮影の場合であって、1回目、2回目
とも撮影画像の左右で画像の歪みは起きていない。従っ
て、1回目撮影画像と2回目撮影画像とを図示の如く左
右方向に繋いだ場合、繋ぎ部分は画像が一致し、任意の
縦線fを境界として繋ぐことにより、横長の原稿画像の
全体を得ることができる。これに対して,図2(b)
は、Δθがある値を有する場合であって、1回目、2回
目の撮影画像はいずれも左右で歪みが生じ、共通画像部
分、すなわち繋ぎ部分において寸法誤差を生じている。
また、被写界深度が浅い場合は、寸法誤差だけでなく撮
影画面の左右でピント誤差も発生している場合がある。
また、図示はされていないが、チルト角Δτがある場合
には、撮影画像の上下についても同じ傾向の歪みが生じ
る。このような歪みがあるままでは、複数画像の繋ぎ部
において、繋がり不良となり、意匠性、再現性の低下は
さけられず、またこの繋ぎ部分の修正処理を施すには、
かなりの時間と労力を必要とするという問題がある。こ
のような、歪みを防ぐためには、前記原稿面等の3面を
互いに平行に保よう、カメラの角度を設定しなければな
らないが、図2(b)の如き歪みは、両画像を付き合わ
せて始めて明確になるものであり、単独の画像をファイ
ンダーで眺めただけでは検知しがたいものである。ま
た、石材のような重量のある原稿を架台に斜めに立てか
け、斜めの方向から撮影する場合、上記の平行関係を保
って撮影することは一層難しくなる。本発明は、前述の
問題点に鑑みてなされたもので、あおり(被写体画像を
歪曲して撮れるよう、レンズ面と撮像面との平行関係を
故意に崩すことができるスティールカメラ独自の機能で
あるが、以降、原稿面も含めて前記3面が平行でない状
態を意味する用語として使用する。)を解消した状態で
繋ぎ部において寸法差、ピント差の無い分割画像を撮影
可能とする平面撮影あおり解消装置及び方法を提供する
ことを目的とする。
However, in the conventional ultra-large plate-making camera, the three surfaces of the original, the lens, and the imaging surface (focusing surface) can move in parallel with each other. Although the vertical and horizontal dimensional errors in each image can be kept low, the camera requires a large camera space in the studio, and it is not easy to mount the original on the document stand and move the original horizontally. In addition to CEPS (COLOR ELECTRONIC PREPR) via continuous tone photographic images taken on conventional silver halide photosensitive materials
There is a problem in that the process has to be converted into digital data by a plate making scanner of ESS SYSTEM). The digital camera itself is compact, a large original is appropriately fixed to a document stand (it is not necessary to be vertical at all), and the camera lens surface and imaging surface are parallel to this original plane. Since it is only necessary to translate the image data in parallel, the operability is excellent and digital image data can be directly obtained, which is in line with the flow of digitization of today's plate making. However, the digital camera is a still camera having an imaging area of about 4 × 5 inches to about 8 × 10 inches, and it is quite impossible to shoot while maintaining the parallel relationship between the lens surface and the imaging surface even if the parallel relationship between the lens surface and the imaging surface is satisfied. Not guaranteed. FIG. 1 is an explanatory diagram of illegal photographing conditions that are likely to occur when photographing a flat original by a conventional digital camera. In the case of photographing the flat original 2 by the digital camera 1, the lens surface S1 of the digital camera 1
Although the imaging surface S2 and the document surface S3 must all be in a parallel relationship, as shown in FIG. 1, the pan angle Δθ of the digital camera 1 (from the optical axis of the digital camera in the horizontal plane and the document plane). In many cases, photographing is performed in a state where an angle due to a vertical line exists. Although not shown, the same applies to the tilt angle Δτ of the digital camera 1 (the angle between the optical axis of the digital camera in a vertical plane and a vertical line from the original plane). In other words, in order to obtain a photographed image with dimensional accuracy in the left, right, up, and down directions of a document, Δ
θ = Δτ = 0. FIG. 2 is an explanatory diagram of an influence of a pan angle on a captured image. In FIG.
The image surrounded by a solid line is obtained by the first shooting in which the horizontally long document is divided into two portions on the left and right sides, and the image surrounded by the dotted line is obtained by the second shooting. FIG. 2 (a)
This is the case of normal photographing with Δθ = 0, and no image distortion occurs on the left and right of the photographed image in the first and second times. Therefore, when the first captured image and the second captured image are connected in the left-right direction as shown in the figure, the connected portions have the same image, and by connecting an arbitrary vertical line f as a boundary, the entirety of the horizontally long original image can be obtained. Obtainable. On the other hand, FIG.
Is a case where Δθ has a certain value, and the first and second captured images are both distorted on the left and right, and a dimensional error is generated in a common image portion, that is, a joint portion.
When the depth of field is shallow, not only a dimensional error but also a focus error may occur on the left and right sides of the shooting screen.
Although not shown, if the tilt angle Δτ is present, the same tendency of distortion occurs in the upper and lower portions of the captured image. In the presence of such distortion, in the connection portion of a plurality of images, the connection becomes poor, and the designability and the reproducibility cannot be reduced.
The problem is that it requires considerable time and effort. In order to prevent such distortion, the angle of the camera must be set so that the three surfaces such as the document surface are kept parallel to each other. However, the distortion as shown in FIG. It becomes clear only after looking at it, and it is difficult to detect it just by looking at a single image with the viewfinder. In addition, when a heavy document such as a stone is leaned on a gantry and photographed from an oblique direction, it becomes more difficult to photograph while maintaining the above parallel relationship. The present invention has been made in view of the above-described problems, and is a unique function of a still camera capable of intentionally breaking a parallel relationship between a lens surface and an imaging surface so that a subject image can be distorted and taken. However, hereinafter, it will be used as a term meaning a state where the three surfaces including the original surface are not parallel.) In a state where the three surfaces are eliminated, it is possible to capture a divided image having no dimensional difference or focus difference at the connecting portion. It is an object of the present invention to provide a solution apparatus and method.

【0004】[0004]

【課題を解決するための手段】本発明による平面撮影あ
おり解消装置は、指向性の光ビームを照射する照射手段
と、該照射手段をカメラもしくはカメラ架台へ取り付け
る機能と前記光ビームの照射角度の調整、確認機能を兼
備した照射手段の取り付け手段と、原稿面と同一平面上
に置かれ、照射される前記光ビームを正反射する反射手
段と、該反射手段によって反射してくる光ビームの受光
位置を確認できる受光手段とから構成したものである。
また、本発明による平面撮影あおり解消方法は、前記カ
メラ若しくはカメラの架台に取り付けられた前記照射手
段によって照射される光ビームがカメラのレンズと撮像
面に対して垂直になるよう調整、確認する工程と、前記
原稿面に対して照射される光ビームの方向と前記反射手
段によって反射される光ビームの方向との一致が、前記
受光手段によって確認されるように、前記カメラのパン
角、チルト角をそれぞれ制御する工程と、から構成して
なるものである。
SUMMARY OF THE INVENTION According to the present invention, there is provided an apparatus for canceling a tilt of a plane photographing device, comprising: an irradiating means for irradiating a directional light beam; a function of attaching the irradiating means to a camera or a camera base; Attachment means for irradiation means having both adjustment and confirmation functions, reflection means placed on the same plane as the surface of the document and for regularly reflecting the light beam to be irradiated, and reception of the light beam reflected by the reflection means And light receiving means for confirming the position.
Further, in the planar shooting and tilt canceling method according to the present invention, the step of adjusting and confirming that the light beam irradiated by the irradiating means attached to the camera or the gantry of the camera is perpendicular to the lens and the imaging surface of the camera. And a pan angle and a tilt angle of the camera, so that the coincidence between the direction of the light beam irradiated on the document surface and the direction of the light beam reflected by the reflection means is confirmed by the light receiving means. And a step of controlling each of them.

【0005】[0005]

【発明の実施の形態】図3は、本発明による平面撮影あ
おり解消装置の説明図である。本発明による平面撮影あ
おり解消装置は、図3に示すように、照射手段A,取り
付け手段B,反射手段C,受光手段Dからなるものであ
る。先ず、照射手段Aは、指向性のある光ビームを照射
させる装置であって、半導体レーザ、ヘリウムネオンレ
ーザ等のレーザ発振器を内蔵するレーザポインタが好適
に使用されるが、無論これだけに限定される訳ではな
い。取り付け手段Bは、レーザポインタから照射される
光ビームの方向が、カメラのレンズ面S1と撮像面S2
に対して垂直になるように、レーザポインタをカメラ1
の一部あるいはカメラの架台3に固定し、且つ、垂直度
の微調整、確認を可能とする治具からなるものである。
この治具は、レーザポインタを挿着する筒状体を備えて
いる。この筒状体は、中心軸の周辺で回転可能であり、
この中心軸がカメラ1のレンズ面S1、撮像面S2に対
して垂直になるように予め治具に固定されている。反射
手段Cは、厚み精度と平面精度の良好なミラーであっ
て、照射される前記光ビームを正反射するものであり、
平面原稿と同一平面上に静置して使用されるものであ
る。受光手段Dは、照射手段Aの直前に置かれて使用さ
れるものであって、これも各種のものが用いられるが、
簡便なものの一例として、光ビームを透過しにくい不透
明なアクリル板等からなり、中央に3〜4mmφ程度の
光ビームを通過させる照射孔を備えたものが挙げられ
る。また、手段A,B,及びDを取り付けるカメラ1
は、CCD撮像素子を撮影面に用いたデジタルカメラ、
イメージオルシコン、ビジコン等の撮像管を撮像面に用
いたテレビジョンカメラ、銀塩写真の感光性フィルムを
撮像面に用いたカメラ等各種のものが用いられる。これ
らの中でも、本発明は、小型のデジタルカメラを用いた
場合に、特にその効果を奏する。なお、以上の各手段の
他に、照射手段に接続される電源供給手段が必要となる
が省略する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 is an explanatory view of a planar photographing tilt canceling apparatus according to the present invention. As shown in FIG. 3, the apparatus for eliminating planing tilt according to the present invention includes an irradiating unit A, a mounting unit B, a reflecting unit C, and a light receiving unit D. First, the irradiating unit A is a device for irradiating a directional light beam, and a laser pointer having a built-in laser oscillator such as a semiconductor laser or a helium neon laser is preferably used, but is not limited to this. Not in translation. The mounting means B is configured to determine whether the direction of the light beam emitted from the laser pointer is the same as the camera lens surface S1 and the imaging surface S2
Position the laser pointer so that it is perpendicular to
And a jig which is fixed to the camera base 3 and allows fine adjustment and confirmation of the verticality.
This jig includes a cylindrical body into which a laser pointer is inserted. This tubular body is rotatable around a central axis,
The central axis is fixed to a jig in advance so that it is perpendicular to the lens surface S1 and the imaging surface S2 of the camera 1. The reflecting means C is a mirror having good thickness accuracy and high flatness accuracy, and reflects the irradiated light beam regularly.
It is used by being placed on the same plane as a flat original. The light receiving means D is used immediately before the irradiation means A, and various kinds of light receiving means D are used.
As an example of a simple one, an opaque acrylic plate or the like hardly penetrating a light beam and having an irradiation hole at the center for passing a light beam of about 3 to 4 mmφ can be cited. Camera 1 to which means A, B, and D are attached
Is a digital camera using a CCD image sensor on the shooting surface,
Various types such as a television camera using an image pickup tube such as an image orchicon and a vidicon as an image pickup surface, and a camera using a photosensitive film of silver halide photography for an image pickup surface are used. Among these, the present invention exhibits its effects particularly when a small digital camera is used. In addition, a power supply unit connected to the irradiation unit is required in addition to the above units, but is omitted.

【0006】図4は、平面撮影あおり解消方法について
の説明図である。次に、以上説明した装置を使用する平
面撮影あおり解消方法について説明する。あおりが解消
された状態とは、レンズ面S1、撮像面S2、原稿面S
3の3面が平行に保たれている状態であって、レンズ面
S1と撮像面S2の平行関係は、カメラ自体の構造的な
問題であって、平行関係は容易に保つことができる。従
って、原稿面S3とカメラ1(図4ではデジタルカメラ
の場合を示す)のレンズ面S1あるいは撮像面S2との
平行精度を如何にして精度よく、簡便な方法で確保する
かが本発明の課題である。その方法は、先ず、前記カメ
ラ1若しくはカメラの架台3への前記取り付け手段Cに
よって備えられている筒状体にレーザポインタを挿着す
る。電源をONにして、レーザポインタから光ビームを
照射し、5〜10m先の任意の反射物(壁面でもよい)
上に光ビームの光点を写し出す。この状態で、筒状体を
その軸の周辺方向に回転して、光点に動きがないことを
確認する。もし、光点が輪を描く場合には、光点の動き
がなくなるまで、レーザポインタの挿着位置を微調整す
る。以上によってカメラ側から光ビームがレンズ面S
1、撮像面S2に対して垂直に照射される条件が整う。
次いで、図4に示すように、カメラ1をミラーによる反
射手段Cの置かれた原稿面S3に向け、原稿2上のミラ
ーに対して光ビームを照射し、照射した光ビームLiの
方向とミラーによって反射してくる光ビームLrとの誤
差を受光手段Dを用いて確認し、誤差を0に収束させる
ことにより、前記3面を相互に平行に調整する。具体例
で説明すると、レーザポインタの直前に置かれた前述の
如き照射孔のある光拡散性の乳白色アクリル板等からな
る受光手段Dによって受光し、受光点と照射孔とが一致
するようにカメラ1のパン角度θとチルト角度τを調整
し、これらを0とする。この受光点と照射孔との一致は
目視によって確認することができ、この両方向の光ビー
ムLi,Lrの方向が一致した時点で、始めて、Δθ=
Δτ=0となり、あおり解消が行われ、カメラ1による
撮影画像に歪み、ピント差の生じない正しい撮影条件が
整う。なお、原稿2は図4に示すように、原稿架台4の
上に斜めに立てかけて置いてもよい。また、アクリル板
等の受光手段Dが大きすぎて、本番撮影の邪魔になる場
合には撮影条件設定後取り外せばよい。また、反射手段
Cも、あおりが解消された後は取り外し、本番撮影を行
う。撮影以降の工程は、従来公知の各種製版工程を適宜
選択すればよい。また適用できる版式も、グラビア、オ
フセット、活版等各種のものが適用可能である。
FIG. 4 is an explanatory diagram of a method of eliminating a planar photographing tilt. Next, a description will be given of a method for eliminating a planar imaging tilt using the above-described apparatus. The state in which the tilt has been eliminated means that the lens surface S1, the imaging surface S2, and the document surface S
In the state where the three surfaces 3 are kept parallel, the parallel relationship between the lens surface S1 and the imaging surface S2 is a structural problem of the camera itself, and the parallel relationship can be easily maintained. Therefore, it is an object of the present invention how to secure the parallel accuracy between the original surface S3 and the lens surface S1 or the imaging surface S2 of the camera 1 (a digital camera is shown in FIG. 4) with high accuracy and a simple method. It is. In the method, first, a laser pointer is attached to the cylindrical body provided by the attaching means C to the camera 1 or the mount 3 of the camera. Turn on the power, irradiate the light beam from the laser pointer, and any reflector 5 to 10 m away (may be a wall surface)
The light spot of the light beam is projected above. In this state, the cylindrical body is rotated around its axis to confirm that the light spot does not move. If the light spot draws a ring, the insertion position of the laser pointer is finely adjusted until the light spot stops moving. As described above, the light beam is transmitted from the camera to the lens surface S.
1. The conditions for vertically irradiating the imaging surface S2 are set.
Then, as shown in FIG. 4, the camera 1 is directed to the original document surface S3 on which the reflecting means C by the mirror is placed, and the mirror on the original document 2 is irradiated with a light beam. The error with the light beam Lr reflected by the above is confirmed using the light receiving means D, and the error is converged to 0, thereby adjusting the three surfaces to be parallel to each other. To explain in a specific example, light is received by a light receiving means D composed of a light-diffusing milky white acrylic plate or the like having an irradiation hole as described above, which is placed immediately before the laser pointer, and the camera is set so that the light receiving point coincides with the irradiation hole. The pan angle θ and the tilt angle τ of 1 are adjusted and set to 0. The coincidence between the light receiving point and the irradiation hole can be visually confirmed. When the directions of the light beams Li and Lr in both directions coincide with each other, Δθ =
Δτ = 0, the tilt is eliminated, and the image captured by the camera 1 is distorted, and a correct image capturing condition that does not cause a focus difference is established. As shown in FIG. 4, the document 2 may be placed leaning on the document table 4 at an angle. If the light receiving means D such as an acrylic plate is too large and hinders actual shooting, it may be removed after setting the shooting conditions. Also, the reflection means C is removed after the tilt is eliminated, and the actual photographing is performed. In the steps after the photographing, various well-known plate making steps may be appropriately selected. Various types of plates such as gravure, offset and letterpress can be applied.

【0007】[0007]

【発明の効果】本発明によれば、指向性に優れた光ビー
ムを照射する照射手段Aと、前記照射手段Aのカメラ2
もしくはカメラ架台3への挿着機能と前記光ビームの照
射角度の調整、確認機能を兼備している取り付け手段B
と、原稿2と同一平面上に置かれ、照射される前記光ビ
ームを正反射する反射手段と、前記反射手段Cによって
反射してくる光ビームの受光位置を確認できる受光手段
Dとから構成されてなる平面撮影あおり解消装置によっ
て、先ず、カメラ側から照射される光ビームのレンズ面
S1、撮像面S2に対する垂直性を確認した後に、照射
される光ビームLiと平面原稿面の反射手段Cによって
反射される光ビームLrの方向を一致させることによっ
て、あおりが解消されたカメラ1による正しい撮影条件
を整えることができ、撮影された複数枚の画像の繋ぎ部
分における寸法誤差、ピント差がなくなることによっ
て、撮影画像の再現性、意匠性の向上はもとより、分割
撮影画像の繋ぎのための修正の手間と時間を大幅に削減
することが可能になる。また、本発明による平面撮影あ
おり解消装置及び方法は、デジタルカメラの場合に特に
好適ではあるが、デジタルカメラだけを対象とするもの
ではなく、一般のスティールカメラに対しても有効であ
り、また、1回で撮りきれる一枚の撮影画像を寸法精度
良く撮影する場合にも有効である。
According to the present invention, the irradiating means A for irradiating a light beam having excellent directivity and the camera 2 of the irradiating means A are provided.
Or mounting means B having both the function of attaching to the camera base 3 and the function of adjusting and confirming the irradiation angle of the light beam.
And a reflection unit that is placed on the same plane as the document 2 and that regularly reflects the light beam to be irradiated, and a light receiving unit D that can confirm a light receiving position of the light beam reflected by the reflection unit C. First, the verticality of the light beam emitted from the camera side with respect to the lens surface S1 and the imaging surface S2 is confirmed by the planar imaging tilt canceling device. By matching the directions of the reflected light beams Lr, it is possible to set a correct photographing condition by the camera 1 in which the tilt is eliminated, and eliminate a dimensional error and a focus difference at a joint portion of a plurality of photographed images. As a result, it is possible not only to improve the reproducibility and design of captured images, but also to greatly reduce the time and effort required to correct the divided captured images. . Further, the apparatus and method for canceling a vertical shooting tilt according to the present invention is particularly suitable for a digital camera, but is not intended only for a digital camera, and is also effective for a general still camera. This is also effective when capturing a single captured image that can be captured at one time with high dimensional accuracy.

【図面の簡単な説明】[Brief description of the drawings]

【図1】従来のデジタルカメラによる平面原稿撮影時に
起こり易い不正な撮影条件の説明図
FIG. 1 is an explanatory diagram of illegal photographing conditions that are likely to occur when photographing a flat original by a conventional digital camera.

【図2】パン角度の撮影画像に及ぼす影響の説明図FIG. 2 is an explanatory diagram of an influence of a pan angle on a captured image.

【図3】本発明による平面撮影あおり解消装置の説明図FIG. 3 is an explanatory view of a planar photographing tilt canceling device according to the present invention.

【図4】平面撮影あおり解消方法についての説明図FIG. 4 is an explanatory diagram of a method for eliminating a planar imaging tilt.

【符号の説明】[Explanation of symbols]

1 カメラ、デジタルカメラ 2 平面原稿 3 カメラの架台 4 原稿架台 A 照射手段 B 取り付け手段 C 反射手段 D 受光手段 Li 照射される光ビーム Lr 反射される光ビーム S1 レンズ面 S2 撮像面 S3 平面原稿面 Δθ パン角 Δτ チルト角 DESCRIPTION OF SYMBOLS 1 Camera, digital camera 2 Plane document 3 Camera stand 4 Document stand A Irradiating means B Mounting means C Reflecting means D Light receiving means Li Irradiated light beam Lr Reflected light beam S1 Lens surface S2 Imaging surface S3 Planar document surface Δθ Pan angle Δτ Tilt angle

───────────────────────────────────────────────────── フロントページの続き (72)発明者 柿沼 良明 東京都新宿区市谷加賀町一丁目1番1号 大日本印刷株式会社内 Fターム(参考) 2H106 AA02 AA82 AB04 BD15  ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiaki Kakinuma 1-1-1 Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo F-term in Dai Nippon Printing Co., Ltd. (reference) 2H106 AA02 AA82 AB04 BD15

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 指向性の光ビームを照射する照射手段
と、該照射手段をカメラもしくはカメラ架台へ挿着する
機能と前記光ビームの照射角度の調整、確認機能を兼備
した前記照射手段の取り付け手段と、原稿面と同一平面
上に置かれ、照射される前記光ビームを正反射する反射
手段と、該反射手段によって反射してくる光ビームの受
光位置を確認できる受光手段とから構成されてなること
を特徴とする平面撮影あおり解消装置。
1. An irradiating means for irradiating a directional light beam, and mounting the irradiating means having a function of attaching the irradiating means to a camera or a camera base and a function of adjusting and confirming an irradiation angle of the light beam. Means, a reflecting means which is placed on the same plane as the surface of the document and which regularly reflects the light beam to be irradiated, and a light receiving means which can confirm a light receiving position of the light beam reflected by the reflecting means. A planar photographing tilt canceling device characterized in that:
【請求項2】 前記カメラ若しくはカメラの架台に取り
付けられた前記照射手段によって照射される光ビームが
カメラのレンズ面と撮像面に対して垂直になるよう調
整、確認する工程と、 前記原稿面に対して照射される光ビームの方向と前記反
射手段によって反射される光ビームの方向との一致が、
前記受光手段によって確認されるように、前記カメラの
パン角とチルト角をそれぞれ制御する工程と、 からなることを特徴とする平面撮影あおり解消方法。
2. A step of adjusting and confirming that a light beam emitted by the irradiating means attached to the camera or the camera base is perpendicular to a lens surface and an imaging surface of the camera; The coincidence of the direction of the light beam irradiated to the direction and the direction of the light beam reflected by the reflection means,
Controlling each of the pan angle and the tilt angle of the camera as confirmed by the light receiving means.
JP28612698A 1998-10-08 1998-10-08 Plane photographing tilt elimination apparatus and method Expired - Fee Related JP4270615B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28612698A JP4270615B2 (en) 1998-10-08 1998-10-08 Plane photographing tilt elimination apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28612698A JP4270615B2 (en) 1998-10-08 1998-10-08 Plane photographing tilt elimination apparatus and method

Publications (2)

Publication Number Publication Date
JP2000111978A true JP2000111978A (en) 2000-04-21
JP4270615B2 JP4270615B2 (en) 2009-06-03

Family

ID=17700273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28612698A Expired - Fee Related JP4270615B2 (en) 1998-10-08 1998-10-08 Plane photographing tilt elimination apparatus and method

Country Status (1)

Country Link
JP (1) JP4270615B2 (en)

Also Published As

Publication number Publication date
JP4270615B2 (en) 2009-06-03

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