JP2003107601A - Device and method for photographing three-dimensional image - Google Patents
Device and method for photographing three-dimensional imageInfo
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- JP2003107601A JP2003107601A JP2001305251A JP2001305251A JP2003107601A JP 2003107601 A JP2003107601 A JP 2003107601A JP 2001305251 A JP2001305251 A JP 2001305251A JP 2001305251 A JP2001305251 A JP 2001305251A JP 2003107601 A JP2003107601 A JP 2003107601A
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- Prior art keywords
- zoom magnification
- stereoscopic
- image capturing
- baseline length
- stereoscopic image
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 67
- 230000000007 visual effect Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 14
- 238000003384 imaging method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 14
- 230000008602 contraction Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- Stereoscopic And Panoramic Photography (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，立体画像を撮影す
る立体画像撮影装置および立体画像撮影方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic image capturing apparatus and stereoscopic image capturing method for capturing a stereoscopic image.
【０００２】[0002]
【従来の技術】左右の撮影光学系を持つステレオカメラ
において、最適な左右の両眼視差調整には様々な試みが
行われている。例えば、特公平５−３１９９号公報では
フオーカス情報に基づいて立体効果調整機構により駆動
モーターで左右ビデオカメラの光軸の交差位置を被写体
の位置と一致させるようにしている。2. Description of the Related Art Various attempts have been made to optimally adjust left and right binocular parallax in a stereo camera having left and right photographing optical systems. For example, in Japanese Examined Patent Publication No. 5-3199, a stereoscopic effect adjusting mechanism uses a drive motor to match the crossing position of the optical axes of the left and right video cameras with the position of the subject based on the focus information.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この従
来の方法では単に左右の光軸の交差する位置と被写体の
位置とを一致させるだけで、同じ被写体でのズーム倍率
操作による両眼視差の変化には対応できない。However, in this conventional method, it is possible to change the binocular parallax by operating the zoom magnification on the same subject simply by matching the position where the left and right optical axes intersect with the position of the subject. Cannot handle.
【０００４】本発明は上記の課題を解決するためにズー
ム倍率情報から、立体画像撮影装置の左右の撮影光学系
間の基線長、輻輳角の制御を行い、適切な両眼視差を作
り出すことを目的とする。In order to solve the above problems, the present invention controls the base line length and the convergence angle between the left and right photographing optical systems of the stereoscopic image photographing apparatus based on the zoom magnification information to create an appropriate binocular parallax. To aim.
【０００５】[0005]
【課題を解決するための手段】上記の課題を鑑みて，本
発明の立体画像撮影装置は、ズーム倍率敗報を基にし
て、左右の撮影光学系のなす基線長、輻輳角を制御し、
適切な両眼視差を作り出す事を特徴とする。In view of the above-mentioned problems, the stereoscopic image taking apparatus of the present invention controls the baseline length and vergence angle formed by the left and right taking optical systems based on the loss of zoom magnification information,
It is characterized by creating appropriate binocular parallax.
【０００６】以上、本発明を整理して要約すれば以下の
構成に集約できる。The present invention can be summarized in the following configurations if summarized and summarized as described above.
【０００７】（１）左眼用画像と右眼用画像を撮像する
左右の撮像手段と、前記左右の撮像手段のズーム倍率を
変更するズーム倍率変更手段と、前記左右の撮像手段の
それぞれの光軸がなす基線長、輻輳角を制御する基線長
輻輳角制御手段と、前記基線長輻輳角制御手段を制御す
る立体視覚効果制御手段とを持つことを特徴とする立体
画像撮影装置。(1) Left and right image pickup means for picking up a left-eye image and a right-eye image, zoom magnification changing means for changing the zoom magnification of the left and right image pickup means, and light for the left and right image pickup means, respectively. A stereoscopic image capturing apparatus comprising: a baseline length vergence angle control means for controlling a base line length and a vergence angle formed by axes; and a stereoscopic visual effect control means for controlling the base line length vergence angle control means.
【０００８】（２）前記基線長輻輳角制御手段は前記基
線長と前記輻輳角を同時に独立して制御できることを特
徴とする前記（１）に記載の立体画像撮影装置。(2) The stereoscopic image photographing apparatus according to (1), wherein the baseline length vergence angle control means can independently control the baseline length and the vergence angle at the same time.
【０００９】（３）前記ズーム倍率変更手段と前記基線
長輻輳角制御手段は同時に独立して動作することを特徴
とする前記（１）に記載の立体画像撮影装置。(3) The stereoscopic image photographing apparatus according to (1), wherein the zoom magnification changing means and the baseline length convergence angle control means operate independently at the same time.
【００１０】（４）前記ズーム倍率変更手段はズーム倍
率情報を出力することを特徴とする前記（１）に記載の
立体画像撮影装置。(4) The stereoscopic image taking apparatus according to (1), wherein the zoom magnification changing means outputs zoom magnification information.
【００１１】（５）前記立体視覚効果制御手段は前記ズ
ーム倍率情報を入力することを特徴とする前記（４）に
記載の立体画像撮影装置。(5) The stereoscopic image capturing apparatus according to (4), wherein the stereoscopic visual effect control means inputs the zoom magnification information.
【００１２】（６）前記立体視覚効果制御手段は入力し
た前記ズーム倍率情報を基に立体視覚効果制御信号を出
力することを特徴とする前記（５）に記載の立体画像撮
影装置。(6) The stereoscopic image capturing apparatus according to (5), wherein the stereoscopic visual effect control means outputs a stereoscopic visual effect control signal based on the input zoom magnification information.
【００１３】（７）前記基線長輻輳角制御手段は前記立
体視覚効果制御信号を入力することを特徴とする前記
（６）に記載の立体画像撮影装置。(7) The stereoscopic image photographing apparatus according to (6), wherein the baseline length vergence angle control means inputs the stereoscopic vision effect control signal.
【００１４】（８）前記基線長輻輳角制御手段は前記立
体視覚効果制御信号を基に前記基線長、前記輻輳角の制
御を行うことを特徴とする前記（７）に記載の立体画像
撮影装置。(8) The stereoscopic image photographing apparatus according to (7), wherein the baseline length convergence angle control means controls the baseline length and the convergence angle based on the stereoscopic vision effect control signal. .
【００１５】（９）左眼用画像と右眼用画像を撮像する
左右の撮像工程と、前記左右の撮像工程時のズーム倍率
を変更するズーム倍率変更工程と、前記左右の撮像工程
時のそれぞれの光軸がなす基線長、輻輳角を制御する基
線長輻輳角制御工程と、前記基線長輻輳角制御工程を制
御する立体視覚効果制御工程とを持つことを特徴とする
立体画像撮影方法。(9) Left and right image pickup steps for picking up the left eye image and right eye image, a zoom magnification changing step for changing the zoom magnification in the left and right image pickup steps, and the left and right image pickup steps, respectively. And a stereoscopic visual effect control step of controlling the baseline length vergence angle control step and a baseline length vergence angle control step of controlling the optical axis of the optical axis.
【００１６】（１０）前記基線長輻輳角制御工程では前
記基線長と前記輻輳角を同時に独立して制御できること
を特徴とする前記（９）に記載の立体画像撮影方法。(10) The stereoscopic image photographing method according to (9), wherein the baseline length and the convergence angle can be controlled independently at the same time in the baseline length convergence angle control step.
【００１７】（１１）前記ズーム倍率変更工程と前記基
線長輻輳角制御工程は同時に独立して動作することを特
徴とする前記（９）に記載の立体画像撮影方法。(11) The stereoscopic image photographing method according to (9), wherein the zoom magnification changing step and the baseline length convergence angle controlling step operate independently at the same time.
【００１８】（１２）前記ズーム倍率変更工程ではズー
ム倍率情報を出力することを特徴とする前記（９）に記
載の立体画像撮影方法。(12) The stereoscopic image photographing method according to (9), wherein zoom magnification information is output in the zoom magnification changing step.
【００１９】（１３）前記立体視覚効果制御工程では前
記ズーム倍率情報を入力することを特徴とする前記（１
２）に記載の立体画像撮影方法。(13) In the stereoscopic visual effect control step, the zoom magnification information is input,
The stereoscopic image capturing method described in 2).
【００２０】（１４）前記立体視覚効果制御工程では入
力した前記ズーム倍率情報を基に前記立体視覚効果制御
信号を出力することを特徴とする前記（１３）に記載の
立体画像撮影方法。(14) In the stereoscopic effect control step, the stereoscopic effect control signal is output based on the input zoom magnification information.
【００２１】（１５）前記基線長輻輳角制御工程では前
記立体視覚効果制御信号を入力することを特徴とする前
記（１４）に記載の立体画像撮影方法。(15) The stereoscopic image photographing method according to (14), wherein the stereoscopic vision effect control signal is input in the baseline length vergence angle control step.
【００２２】（１６）前記基線長輻輳角制御工程では前
記立体視覚効果制御信号を基に前記基線長、前記輻輳角
の制御を行うことを特徴とする前記（１５）に記載の立
体画像撮影方法。(16) The stereoscopic image photographing method according to (15), characterized in that, in the baseline length convergence angle control step, the baseline length and the convergence angle are controlled based on the stereoscopic effect control signal. .
【００２３】[0023]
【発明の実施の形態】以下、添付図面に従って本発明に
係る実施形態を説明する。DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００２４】（実施例１）図１に、本発明が対象とする
ズーム機能付きで左右の撮影光学系間の基線長、輻輳角
の制御が可能な立体画像撮影装置１を示す。この立体画
像撮影装置１は右撮影光学系２、左撮影光学系４それぞ
れに基線長の伸縮と光軸を回転させ輻輳を変化させる右
基線長伸縮輻輳回転軸３、左基線長伸縮輻輳回転軸５を
備えている。右基線長伸縮輻輳回転軸３、左基線長伸縮
輻輳回転軸５は基線１０上を駆動モーターによって稼動
する。(Embodiment 1) FIG. 1 shows a stereoscopic image photographing apparatus 1 having a zoom function and capable of controlling a base line length and a convergence angle between left and right photographing optical systems, which is a target of the present invention. This stereoscopic image capturing apparatus 1 includes a right baseline optical extension 2 and a left image capturing optical system 4, respectively. It is equipped with 5. The right baseline length expansion / convergence rotation shaft 3 and the left baseline length expansion / convergence rotation shaft 5 are driven by drive motors on the base line 10.
【００２５】図２はとある被写体の平面図を表したもの
である。右上に位置するのが球６で、左下に位置するの
が円錐７であり、点ｐ０は円錐７の底面の円の円周で最
左で上下位置中央に位置する。FIG. 2 shows a plan view of an object. The sphere 6 is located at the upper right, the cone 7 is located at the lower left, and the point p0 is located at the leftmost center of the vertical position on the circumference of the circle of the bottom of the cone 7.
【００２６】図３は前記図２の被写体の立面図である。
球６、円錐７、点ｐ０いずれも図２のものと同じであ
る。FIG. 3 is an elevation view of the subject shown in FIG.
The sphere 6, the cone 7, and the point p0 are all the same as those in FIG.
【００２７】図４は図２の被写体を単眼カメラＬ１で撮
影している様子を平面図で表したものである。単眼カメ
ラは図１の立体画像撮影装置１の撮影光学系の一つと同
じものを使用し、立体画像撮影装置１の基線１０の中央
ｏに光軸を基線１０と垂直にして位置している。単眼カ
メラＬ１の光軸方向を撮影方向８と定義する。球６の中
心ｑ０と単眼カメラＬ１の撮影面との距離はＬである。
中心ｑ０を通り８撮影方向に垂直な直線をフォーカスラ
イン９と呼ぶ。図７が前記単眼カメラＬ１で撮影された
画像である。FIG. 4 is a plan view showing how the subject of FIG. 2 is photographed by the monocular camera L1. The monocular camera uses the same one of the photographing optical systems of the stereoscopic image photographing device 1 of FIG. 1, and is located at the center o of the base line 10 of the stereoscopic image photographing device 1 with the optical axis perpendicular to the base line 10. The optical axis direction of the monocular camera L1 is defined as a shooting direction 8. The distance between the center q0 of the sphere 6 and the shooting surface of the monocular camera L1 is L.
A straight line that passes through the center q0 and is perpendicular to the 8 shooting directions is called a focus line 9. FIG. 7 is an image taken by the monocular camera L1.
【００２８】図５は図２の被写体を立体画像撮影装置１
で撮影している様子を平面図で表したものである。Ｌ２
ＬおよびＬ２Ｒは一組の立体画像撮影装置の光学系でＬ
２Ｌが左撮影光学系、Ｌ２Ｒが右撮影光学系である。左
撮影光学系Ｌ２Ｌは立体画像撮影装置の中心ｏから撮影
方向垂直、基線左方向に距離ａ離れた所、また右撮影光
学系Ｌ２Ｒは中心ｏから撮影方向垂直、基線右方向に距
離ａ離れた所に位置する。左撮影光学系Ｌ２Ｌの光軸と
撮影方向８の為す角はαであり、また右撮影光学系Ｌ２
Ｒの光軸と撮影方向８の為す角もαである。FIG. 5 is a stereoscopic image photographing apparatus 1 for the subject of FIG.
It is a plan view showing a state of being photographed in. L2
L and L2R are an optical system of a pair of stereoscopic image capturing devices.
2L is a left photographing optical system, and L2R is a right photographing optical system. The left photographing optical system L2L is perpendicular to the photographing direction from the center o of the stereoscopic image photographing device at a distance a to the left of the baseline, and the right photographing optical system L2R is perpendicular to the photographing direction from the center o to a distance a to the right of the baseline. Located in the place. The angle between the optical axis of the left photographing optical system L2L and the photographing direction 8 is α, and the right photographing optical system L2L
The angle formed by the optical axis of R and the photographing direction 8 is also α.
【００２９】α＝ｔａｎ-1（ａ／Ｌ）である。Α = tan −1 (a / L).
【００３０】光軸の交点には中心ｏから距離Ｌ撮影方向
に位置する球６の中心ｑ０にある。点ｐ１は左撮影光学
系Ｌ２Ｌの光軸と基線の交点、点ｐ４は右撮影光学系Ｌ
２Ｒの光軸と基線の交点である。また、点ｐ５は直線ｐ
０ｐ４とフォーカスライン９との交点、点ｐ８は直線ｐ
０ｐ１とフォーカスライン９との交点である。この左撮
影光学系Ｌ２Ｌおよび右撮影光学系Ｌ２Ｒの一組の立体
画像撮影装置で撮影された画像を重ね合わせたものが図
８である。The intersection of the optical axes is at the center q0 of the sphere 6 located in the photographing direction at the distance L from the center o. Point p1 is the intersection of the optical axis of the left photographic optical system L2L and the base line, and point p4 is the right photographic optical system L.
It is the intersection of the optical axis of 2R and the baseline. The point p5 is a straight line p
The intersection of 0p4 and the focus line 9, the point p8 is the straight line p
It is the intersection of 0p1 and the focus line 9. FIG. 8 is a superposition of images captured by the pair of stereoscopic image capturing devices of the left image capturing optical system L2L and the right image capturing optical system L2R.
【００３１】図８において光軸の交点にある球の撮影画
像にはほとんどずれが現れず、その左手前にある三角錐
の撮影画像にはずれが現れる。その三角錐の撮影された
画像の底辺のずれ量をｓとする。In FIG. 8, almost no deviation appears in the photographed image of the sphere at the intersection of the optical axes, and deviation appears in the photographed image of the triangular pyramid in front of it. Let s be the shift amount of the base of the captured image of the triangular pyramid.
【００３２】この図８の撮影画像が撮影されている状態
から、カメラの位置方向を変えずに２倍のズームアップ
を行い、撮影された画像を重ね合わせると図９のように
なる。左手前にある三角錐の撮影された画像の底辺のず
れ量をｔとする。２倍ズームアップによりｔ≒２ｓとな
る。From the state in which the photographed image of FIG. 8 is photographed, zoom-in is performed twice without changing the position and direction of the camera, and the photographed images are superposed as shown in FIG. The amount of deviation of the base of the captured image of the triangular pyramid on the left front is t. With 2 × zoom up, t≈2s.
【００３３】ずれ量が２倍に拡大してしまうと、左右の
像の融像が難しくなる。そこでズーム情報を基にして基
線長、輻輳角の制御を行い、ずれ量の拡大を抑える。If the shift amount is doubled, fusion of the left and right images becomes difficult. Therefore, the base line length and the convergence angle are controlled based on the zoom information to suppress the expansion of the shift amount.
【００３４】図６は図５の状態から基線長を短くし、輻
輳角を狭めた様子の平面図である。ａ＞ｂ、α＞βであ
る。左撮影光学系Ｌ３Ｌは立体画像撮影装置の中心ｏか
ら撮影方向垂直、基線方向に距離ｂ離れた位置、また右
撮影光学系Ｌ３Ｒは中心ｏから撮影方向垂直、基線右方
向に距離ｂ離れた位置にある。左撮影光学系Ｌ３Ｌの光
軸と撮影方向の為す角はβであり、また右撮影光学系Ｌ
３Ｒの光軸と撮影方向の為す角もβである。FIG. 6 is a plan view showing a state in which the baseline length is shortened and the vergence angle is narrowed from the state of FIG. a> b and α> β. The left photographing optical system L3L is located at a position perpendicular to the photographing direction from the center o of the stereoscopic image photographing device, and is located at a distance b in the baseline direction. It is in. The angle formed between the optical axis of the left photographing optical system L3L and the photographing direction is β, and the right photographing optical system L3
The angle formed by the optical axis of 3R and the shooting direction is also β.
【００３５】β＝ｔａｎ-1（ｄ／Ｌ）である。Β = tan −1 (d / L).
【００３６】光軸の交点には中心ｏから距離Ｌ撮影方向
に位置する６球の中心ｑ０にある。この左撮影光学系Ｌ
３Ｌおよび右撮影光学系Ｌ３Ｒの一組の立体画像撮影装
置で撮影された画像を重ね合わせたものが図１０であ
る。The intersection of the optical axes is located at the center q0 of the six spheres located in the photographing direction at the distance L from the center o. This left photographic optical system L
FIG. 10 is a diagram in which images captured by a pair of stereoscopic image capturing devices of 3L and the right capturing optical system L3R are superimposed.
【００３７】図１０の左手前にある三角錐の底辺のずれ
をｕとする。ｂ＝１／２ａの時、ｕ≒１／２ｔ≒ｓとな
る。The deviation of the base of the triangular pyramid on the front left side of FIG. 10 is defined as u. When b = 1 / 2a, u≈1 / 2t≈s.
【００３８】それを図１１を用いて説明する。図５のα
および図６のβが十分小さな値のとき、左撮影光学系Ｌ
２Ｌの光軸と垂直で点ｑ０を通る投射面をフォーカスラ
イン９上の位置においてもそれほど大きな差はない。そ
のことは同様にＬ２Ｒ、Ｌ３Ｌ、Ｌ３Ｒにも当てはめる
ことが出来る。そこで点ｑ０を通るそれぞれの投射面を
フオー力スライン９上にあるとする。This will be described with reference to FIG. Α in FIG.
And β in FIG. 6 is a sufficiently small value, the left photographing optical system L
There is no great difference in the position on the focus line 9 on the projection plane that is perpendicular to the 2L optical axis and passes through the point q0. The same applies to L2R, L3L and L3R. Therefore, it is assumed that the respective projection planes passing through the point q0 are on the force force line 9.
【００３９】点ｐ０は図２および図３で示した円錐７の
一点ｐ０、点ｑ０は６球の中心の点、９フォーカスライ
ンは図４のところで説明した線である。点ｐ１は左撮影
光学系Ｌ２Ｌの光軸と基線の交点、点ｐ２は左撮影光学
系Ｌ３Ｌの光軸と基線の交点、点ｐ３は右撮影光学系Ｌ
３Ｒの光軸と基線の交点、点ｐ４は右撮影光学系Ｌ２Ｒ
の光軸と基線の交点である。また、点ｐ５は直線ｐ０ｐ
４とフォーカスライン９との交点、点ｐ６は直線ｐ０ｐ
３とフォーカスライン９との交点、点ｐ７は直線ｐ０ｐ
２とフォーカスライン９との交点、点ｐ８は直線ｐ０ｐ
４とフォーカスライン９との交点である。The point p0 is one point p0 of the cone 7 shown in FIGS. 2 and 3, the point q0 is the center point of the six spheres, and the 9 focus lines are the lines described in FIG. Point p1 is the intersection of the optical axis of the left photographing optical system L2L and the base line, point p2 is the intersection of the optical axis of the left photographing optical system L3L and the base line, and point p3 is the right photographing optical system L.
The intersection of the optical axis of 3R and the base line, point p4 is the right photographing optical system L2R.
Is the intersection of the optical axis and the baseline. The point p5 is a straight line p0p.
The intersection of 4 and the focus line 9, the point p6 is a straight line p0p
The intersection of 3 and the focus line 9, point p7 is a straight line p0p
The intersection of 2 and the focus line 9, the point p8 is the straight line p0p
It is the intersection of 4 and the focus line 9.
【００４０】線分ｑ０ｐ５と線分ｑ０ｐ８との差ｃがＬ
２ＬおよびＬ２Ｒで構成される立体画像撮影装置で撮影
した時の三角錐の底辺のずれとなる。また線分ｑｐ６と
線分ｑｐ７との差ｄがＬ３ＬおよびＬ３Ｒで構成される
立体画像撮影装置で撮影した時の三角錐の底辺のずれと
なる。The difference c between the line segment q0p5 and the line segment q0p8 is L
It is the bottom of the triangular pyramid when the image is captured by the stereoscopic image capturing device configured by 2L and L2R. Further, the difference d between the line segment qp6 and the line segment qp7 is the displacement of the base of the triangular pyramid when the image is captured by the stereoscopic image capturing apparatus configured by L3L and L3R.
【００４１】フォーカスライン９と基線１０は平行なの
で、Since the focus line 9 and the base line 10 are parallel,
【００４２】 [0042]
【００４３】の結果より三角錐の底辺のずれは基線長
の長さに比例する事がわかる。ゆえに上記の通りｂ＝１
／２ａの時、ｕ≒１／２ｔ≒ｓとなる。From the result, it can be seen that the deviation of the base of the triangular pyramid is proportional to the length of the base line. Therefore, as above, b = 1
When it is / 2a, u≈1 / 2t≈s.
【００４４】以上の結果より、ズーム倍率変動前の基線
長にズーム倍率変動分の逆数を掛けた値を新たな基線長
に設定し、なおかつ左右の撮影光学系の光軸の交点を基
線長変動前と同じ位置にする輻輳角に設定すればずれ量
をズーム変動前とほぼ変わらないように抑えることが出
来る。From the above results, a value obtained by multiplying the baseline length before zoom magnification variation by the reciprocal of the zoom magnification variation is set as the new baseline length, and the intersection of the optical axes of the left and right photographing optical systems is varied. If the convergence angle is set to the same position as before, the amount of deviation can be suppressed so that it is almost the same as before zooming.
【００４５】図１２は上記の動作を説明するフローチャ
ートである。まず、ステップＳ１０１において被写体に
立体画像撮影装置を向ける。次にステップ１０２でその
被写体のステレオ画像を観察者が見るのに適切な基線長
・輻輳角に設定する。次にステップ１０３で被写体を撮
影する。FIG. 12 is a flow chart for explaining the above operation. First, in step S101, the stereoscopic image capturing apparatus is aimed at the subject. Next, in step 102, a stereo image of the subject is set to a baseline length / convergence angle suitable for the observer to see. Next, in step 103, the subject is photographed.
【００４６】次にステップ１０４で立体画像撮影装置の
向きに変更があるかどうか判別する。もし向きに変更が
あればステップ１０２に戻る。変更がなければステップ
１０５に進む。Next, at step 104, it is judged whether or not the orientation of the stereoscopic image pickup device is changed. If the orientation is changed, the process returns to step 102. If there is no change, go to step 105.
【００４７】次にステップ１０５でズーム倍率に変更が
あるかどうか判別する。ズーム倍率に変更がなければス
テップ１０３に戻り、変更があればステップ１０６に進
む。ステップ１０６ではステップ１０５でのズーム倍率
変更を受け、ズーム倍率変更前の左右の画像のずれ量か
らの大幅変動を抑える基線長・輻輳角の値を計算する。Next, at step 105, it is judged if the zoom magnification is changed. If there is no change in the zoom magnification, the process returns to step 103, and if there is a change, the process proceeds to step 106. In step 106, the zoom magnification change in step 105 is received, and the values of the baseline length / convergence angle that suppress a large change from the shift amount of the left and right images before the zoom magnification change are calculated.
【００４８】次にステップ１０７ではステップ１０６で
計算した基線長・輻輳角の値を新たに設定する。次にま
たステップ１０３に戻って被写体を撮影する。Next, at step 107, the values of the base line length and the angle of convergence calculated at step 106 are newly set. Then, the process returns to step 103 to photograph the subject.
【００４９】図１３は上記の装置を端的に表した図であ
る。立体画像撮影装置１には右撮影光学系２と左撮影光
学系４があり、それぞれに右基線長伸縮輻輳回転軸３、
左基線長伸縮輻輳回転軸５が備えてあり、左右の撮影光
学系がなす基線長と輻輳角を変化させることが出来る。
右基線長伸縮輻輳回転軸３、左基線長伸縮輻輳回転軸５
を制御するのが基線長輻輳角制御部１１である。FIG. 13 is a diagram schematically showing the above apparatus. The stereoscopic image capturing apparatus 1 has a right image capturing optical system 2 and a left image capturing optical system 4, each of which has a right baseline length expansion / contraction vergence rotation axis 3,
The left baseline length expansion / convergence rotation axis 5 is provided, and the baseline length and vergence angle formed by the left and right photographing optical systems can be changed.
Right baseline length expansion / convergence rotation axis 3, left baseline length expansion / convergence rotation axis 5
Is controlled by the baseline length vergence angle control unit 11.
【００５０】また、右撮影光学系２、左撮影光学系４の
ズーム倍率を変化させる、ズーム倍率変更部１２があ
り、ズーム倍率変更部１２は立体視覚効果制御部１３に
ズーム倍率情報１４を送る。立体視覚効果制御部１３は
ズーム倍率情報１４を基に立体視覚効果制御信号１５を
基線長輻輳角制御部１１に送り、基線長輻輳角制御部１
１は立体視覚効果制御信号１５に従って右基線長伸縮輻
輳回転軸３、左基線長伸縮輻輳回転軸５を制御する。Further, there is a zoom magnification changing unit 12 for changing the zoom magnification of the right photographing optical system 2 and the left photographing optical system 4, and the zoom magnification changing unit 12 sends the zoom magnification information 14 to the stereoscopic effect control unit 13. . The stereoscopic visual effect control unit 13 sends a stereoscopic visual effect control signal 15 to the baseline length convergence angle control unit 11 based on the zoom magnification information 14, and the baseline length convergence angle control unit 1
Reference numeral 1 controls the right base line length expansion / contraction convergence rotation axis 3 and the left base line length expansion / convergence rotation axis 5 in accordance with the stereoscopic visual effect control signal 15.
【００５１】（実施例２）１／２の倍率にズームダウン
した場合に基線長を２倍に広げ、ずれ量を保ち、立体感
を損なわないようにする。(Embodiment 2) When zooming down to 1/2 magnification, the base line length is doubled to maintain the amount of deviation so as not to impair the stereoscopic effect.
【００５２】[0052]
【発明の効果】以上説明したように、本発明によれば、
基線長、輻輳角の変位が可能な立体映像撮影装置におい
て、ズームアップした時の両眼視差の拡大を抑え、観察
者の立体画像の自然な融像を促すことが出来る。As described above, according to the present invention,
In a stereoscopic image capturing apparatus capable of displacing the base line length and the angle of convergence, it is possible to suppress the expansion of binocular parallax when zooming up and promote natural fusion of the stereoscopic image of the observer.
【図１】 立体画像撮影装置を表した図FIG. 1 is a diagram showing a stereoscopic image capturing device.
【図２】 被写体の平面図を表した図FIG. 2 is a diagram showing a plan view of a subject.
【図３】 被写体の立面図を表した図FIG. 3 is a diagram showing an elevation view of a subject.
【図４】 単眼カメラによる撮影の構図を表した図FIG. 4 is a diagram showing a composition of photographing by a monocular camera.
【図５】 立体映像撮影装置による撮影の構図を表した
図FIG. 5 is a diagram showing a composition of shooting by a stereoscopic image shooting device.
【図６】 立体映像撮影装置による撮影の構図を表した
図FIG. 6 is a diagram showing a composition of photography by a stereoscopic image capturing apparatus.
【図７】 単眼カメラによって撮影した画像を表した図FIG. 7 is a diagram showing an image taken by a monocular camera.
【図８】 立体映像撮影装置によって撮影した画像を表
した図FIG. 8 is a diagram showing an image captured by a stereoscopic image capturing device.
【図９】 立体映像撮影装置によって撮影した画像を表
した図FIG. 9 is a diagram showing an image captured by a stereoscopic image capturing device.
【図１０】 立体映像撮影装置によって撮影した画像を
表した図FIG. 10 is a diagram showing an image captured by a stereoscopic image capturing device.
【図１１】 基線長とずれの関係を説明する図FIG. 11 is a diagram for explaining the relationship between the baseline length and the shift.
【図１２】 全体の流れを説明するフローチャートFIG. 12 is a flowchart explaining the overall flow.
【図１３】 本発明を端的に表した図FIG. 13 is a diagram schematically showing the present invention.
１ 立体画像撮影装置 ２ 右撮影光学系 ３ 右基線長伸縮輻輳回転軸 ４ 左撮影光学系 ５ 左基線長伸縮輻輳回転軸 ６ 球 ７ 円錐 ８ 撮影方向 ９ フォーカスライン １０ 基線 １１ 基線長輻輳角制御部 １２ ズーム倍率変更部 １３ 立体視覚効果制御部 １４ ズーム倍率情報 １５ 立体視覚効果制御信号 Ｌ１ 単眼カメラ Ｌ２Ｌ 左撮影光学系 Ｌ２Ｒ 右撮影光学系 Ｌ３Ｌ 左撮影光学系 Ｌ３Ｒ 右撮影光学系 ｑ０ 点 ｐ０ 点 ｐ１ 点 ｐ２ 点 ｐ３ 点 ｐ４ 点 ｐ５ 点 ｐ６ 点 ｐ７ 点 ｐ８ 点 1 Stereoscopic image capture device 2 Right shooting optical system 3 Right baseline length expansion / convergence rotation axis 4 Left photography optical system 5 Left baseline length expansion / convergence rotation axis 6 balls 7 cones 8 Shooting direction 9 Focus line 10 baseline 11 Baseline length convergence angle control unit 12 Zoom magnification change section 13 Stereoscopic visual effect control unit 14 Zoom magnification information 15 Stereoscopic visual effect control signal L1 monocular camera L2L Left shooting optical system L2R Right shooting optical system L3L Left shooting optical system L3R Right shooting optical system q0 point p0 point p1 point p2 point p3 point p4 point p5 points p6 point p7 points p8 point
Claims (16)
の撮像手段と、前記左右の撮像手段のズーム倍率を変更
するズーム倍率変更手段と、前記左右の撮像手段のそれ
ぞれの光軸がなす基線長、輻輳角を制御する基線長輻輳
角制御手段と、前記基線長輻輳角制御手段を制御する立
体視覚効果制御手段とを持つことを特徴とする立体画像
撮影装置。1. Left and right image pickup means for picking up an image for the left eye and an image for the right eye, zoom magnification changing means for changing a zoom magnification of the left and right image pickup means, and respective optical axes of the left and right image pickup means. A stereoscopic image capturing apparatus comprising: a baseline length vergence angle control means for controlling a baseline length and a vergence angle formed by the stereoscopic vision effect control means for controlling the baseline length vergence angle control means.
と前記輻輳角を同時に独立して制御できることを特徴と
する請求項１に記載の立体画像撮影装置。2. The stereoscopic image capturing apparatus according to claim 1, wherein the baseline length vergence angle control means can independently control the baseline length and the vergence angle at the same time.
輳角制御手段は同時に独立して動作することを特徴とす
る請求項１に記載の立体画像撮影装置。3. The stereoscopic image capturing apparatus according to claim 1, wherein the zoom magnification changing unit and the baseline length convergence angle control unit operate independently at the same time.
報を出力することを特徴とする請求項１に記載の立体画
像撮影装置。4. The stereoscopic image capturing apparatus according to claim 1, wherein the zoom magnification changing unit outputs zoom magnification information.
倍率情報を入力することを特徴とする請求項４に記載の
立体画像撮影装置。5. The stereoscopic image capturing apparatus according to claim 4, wherein the stereoscopic effect control means inputs the zoom magnification information.
記ズーム倍率情報を基に立体視覚効果制御信号を出力す
ることを特徴とする請求項５に記載の立体画像撮影装
置。6. The stereoscopic image capturing apparatus according to claim 5, wherein the stereoscopic visual effect control unit outputs a stereoscopic visual effect control signal based on the input zoom magnification information.
覚効果制御信号を入力することを特徴とする請求項６に
記載の立体画像撮影装置。7. The stereoscopic image capturing apparatus according to claim 6, wherein the baseline length vergence angle control means inputs the stereoscopic visual effect control signal.
覚効果制御信号を基に前記基線長、前記輻輳角の制御を
行うことを特徴とする請求項７に記載の立体画像撮影装
置。8. The stereoscopic image capturing apparatus according to claim 7, wherein the base line length vergence angle control means controls the base line length and the vergence angle based on the stereoscopic visual effect control signal.
の撮像工程と、前記左右の撮像工程時のズーム倍率を変
更するズーム倍率変更工程と、前記左右の撮像工程時の
それぞれの光軸がなす基線長、輻輳角を制御する基線長
輻輳角制御工程と、前記基線長輻輳角制御工程を制御す
る立体視覚効果制御工程とを持つことを特徴とする立体
画像撮影方法。9. A left and right imaging step for picking up a left-eye image and a right-eye image, a zoom magnification changing step for changing a zoom magnification in the left and right imaging steps, and a left and right imaging step, respectively. A stereoscopic image capturing method comprising: a baseline length vergence angle control step of controlling a baseline length and a vergence angle formed by an optical axis; and a stereoscopic visual effect control step of controlling the baseline length vergence angle control step.
線長と前記輻輳角を同時に独立して制御できることを特
徴とする請求項９に記載の立体画像撮影方法。10. The stereoscopic image capturing method according to claim 9, wherein the baseline length and the vergence angle can be controlled independently at the same time in the baseline length convergence angle control step.
輻輳角制御工程は同時に独立して動作することを特徴と
する請求項９に記載の立体画像撮影方法。11. The stereoscopic image capturing method according to claim 9, wherein the zoom magnification changing step and the baseline length convergence angle controlling step operate independently at the same time.
率情報を出力することを特徴とする請求項９に記載の立
体画像撮影方法。12. The stereoscopic image capturing method according to claim 9, wherein zoom magnification information is output in the zoom magnification changing step.
ーム倍率情報を入力することを特徴とする請求項１２に
記載の立体画像撮影方法。13. The stereoscopic image capturing method according to claim 12, wherein the zoom magnification information is input in the stereoscopic visual effect control step.
た前記ズーム倍率情報を基に前記立体視覚効果制御信号
を出力することを特徴とする請求項１３に記載の立体画
像撮影方法。14. The stereoscopic image capturing method according to claim 13, wherein in the stereoscopic visual effect control step, the stereoscopic visual effect control signal is output based on the input zoom magnification information.
体視覚効果制御信号を入力することを特徴とする請求項
１４に記載の立体画像撮影方法。15. The stereoscopic image capturing method according to claim 14, wherein the stereoscopic vision effect control signal is input in the baseline length vergence angle control step.
体視覚効果制御信号を基に前記基線長、前記輻輳角の制
御を行うことを特徴とする請求項１５に記載の立体画像
撮影方法。16. The stereoscopic image capturing method according to claim 15, wherein the baseline length and the vergence angle are controlled based on the stereoscopic visual effect control signal in the baseline length vergence angle control step.
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| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20041207 |