JPH06348843A - Picture processor - Google Patents

Picture processor

Info

Publication number
JPH06348843A
JPH06348843A JP5137253A JP13725393A JPH06348843A JP H06348843 A JPH06348843 A JP H06348843A JP 5137253 A JP5137253 A JP 5137253A JP 13725393 A JP13725393 A JP 13725393A JP H06348843 A JPH06348843 A JP H06348843A
Authority
JP
Japan
Prior art keywords
image
hough
light
picture
input
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
JP5137253A
Other languages
Japanese (ja)
Other versions
JP3327999B2 (en
Inventor
Ikutoshi Fukushima
福島郁俊
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP13725393A priority Critical patent/JP3327999B2/en
Publication of JPH06348843A publication Critical patent/JPH06348843A/en
Application granted granted Critical
Publication of JP3327999B2 publication Critical patent/JP3327999B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To provide a picture processing in which Hough transformation can be exactly attained at a high speed. CONSTITUTION:This device is constituted of a reading light 200 for reading at least a picture, picture inputting means 201 for irradiating with the reading light, and inputting the input picture to system, Hough transforming member 202 for operating Hough transformation to the picture information inputted to the system by the picture inputting means 201, and CCD camera 204 for detecting the Hough transformation information transformed by the Hough transforming member 202. The Hough transforming member 202 is constituted of a part which transforms the input light only into one axial direction in a very small area, and a very small condensing element array having an image forming characteristic only in one direction.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、画像処理装置に関し、
特に、入力画像のハフ変換を光学的に瞬時に行う画像処
理装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus,
In particular, the present invention relates to an image processing device that optically and instantaneously performs Hough transform of an input image.

【0002】[0002]

【従来の技術】産業用ロボットの視覚装置やオートメー
ションラインの製品検査装置等を始めとして、画像の認
識装置へのニーズは強く、様々な認識方式が提案されて
いる。その中でも、ハフ変換(Hough Transform )は画
像の認識に広く用いられている変換で、入力画像をf
(x,y)とすると、f(x,y)に、 F(m,c)=∬f(x,y)δ(y−mx−c)dxdy …(1) の変換を施し、入力画像中の線分の傾きmと切片cを検
出する変換である。具体的には、f(x,y)の中の点
A(xs ,ys )でf(xs ,ys )=1であるとす
る。すると、(1)式のf(xs ,ys )δ(ys −m
s −c)の演算により、この点は、 ys −mxs −c=0 …(2) となり、(m,c)を変数と見ると、直線に変換され
る。ここで、B(xt ,y t )もf(xt ,yt )=1
であるとすれば、この点も同様に、 yt −mxt −c=0 …(3) の直線に変換される。この式(2)、式(3)の2つの
直線の交点は、 m=(ys −yt )/(xs −xt ), c=(xs t −xt s )/(xs −xt ) であり、このmとcは、それぞれ点Aと点Bを通る直線
の切片と傾きを示している。つまり、f(x,y)内に
ある直線上の点は、変換された座標平面では、全てその
直線の傾きと切片を示す点を通る直線に変換され、さら
に、変換された直線を(1)式のように積分を行うの
で、変換された画像は、傾きと切片を示す部分では大き
な値を持つことになり、適当なしきい値を設定すれば、
その傾きと切片を示す点のみが出力され、ハフ変換が行
われる。
2. Description of the Related Art Industrial robot visual devices and automation
Image recognition, including product line inspection equipment
There is a strong need for intelligent devices, and various recognition methods have been proposed.
There is. Among them, the Hough Transform
This is a transformation that is widely used for image recognition.
If (x, y), f (x, y) is transformed into F (m, c) = ∬f (x, y) δ (y-mx-c) dxdy (1) to obtain the input image. Check the slope m and intercept c of the line segment in the
It is a conversion to be issued. Specifically, the points in f (x, y)
A (xs, Ys) F (xs, Ys) = 1
It Then, f (xs, Ys) Δ (ys-M
xsAccording to the calculation of -c), this point becomes ys-Mxs-C = 0 (2), and if (m, c) is regarded as a variable, it is converted into a straight line.
It Where B (xt, Y t) Is also f (xt, Yt) = 1
If this is the case, then yt-Mxt-C = 0 is converted into a straight line of (3). The two equations (2) and (3)
The intersection of the straight lines is m = (ys-Yt) / (Xs-Xt), C = (xsyt-Xtys) / (Xs-Xt), Where m and c are straight lines passing through points A and B, respectively.
Shows the intercept and slope. That is, within f (x, y)
All points on a straight line are all in the transformed coordinate plane.
Converted to a straight line passing through the points indicating the slope and intercept of the straight line, and
Then, the converted straight line is integrated as shown in equation (1).
Then, the converted image is large in the part showing the inclination and the intercept.
Therefore, if you set an appropriate threshold,
Only the points indicating the slope and intercept are output, and the Hough transform is performed.
Be seen.

【0003】しかし、全ての画像の点について前述のよ
うな直線への変換を行い、それらを積分しなければなら
ないので、電気的にハフ変換を行うためには非常に時間
がかかってしまう。
However, since it is necessary to convert all the image points to the above-mentioned straight lines and integrate them, it takes a very long time to electrically perform the Hough conversion.

【0004】そこで、光学的に画像全体に一度に瞬時に
ハフ変換を施す試みがいくつか提案されている。例え
ば、図6に示すように、入力画像102にコヒーレント
光101を照射し、その透過光がハフ変換フィルター1
03と、フーリエ変換レンズ104を経ることで、ハフ
変換された画像をそのフーリエ変換面105で得る。こ
こで、ハフ変換フィルター103は、コンピュータを用
いてある微小領域について、その領域内に入射する光を
上述の式(1)に基づく直線に変換するように計算され
た干渉縞を記録したサブホログラムを2次元的に並べた
ものである(P.Ambs et al. "Optical implementation
of the Hough transform by a matrix ofholograms", A
PPLIED OPTICS,Vol.25,No.22,pp4039-4045(1986) 参
照)。
Therefore, some attempts have been proposed to optically and optically perform Hough transform on the entire image at once. For example, as shown in FIG. 6, the input image 102 is irradiated with the coherent light 101, and the transmitted light thereof is converted into the Hough transform filter 1.
03 and the Fourier transform lens 104, a Hough transformed image is obtained on the Fourier transform plane 105. Here, the Hough transform filter 103 is a sub-hologram that records interference fringes calculated so as to convert the light incident on a certain minute area using a computer into a straight line based on the above equation (1). Are arranged two-dimensionally (P.Ambs et al. "Optical implementation
of the Hough transform by a matrix of holograms ", A
PPLIED OPTICS, Vol.25, No.22, pp4039-4045 (1986)).

【0005】[0005]

【発明が解決しようとする課題】上述したホログラムに
基づく方式では、サブホログラムの大きさがハフ変換す
る際の入力画像中の検出可能な線分の太さに対応し、細
かな線分も検出するためには、サブホログラムの大きさ
も小さくしなければならない。しかし、実際上、サブホ
ログラムの大きさは、感光材の分解能や、回析によるフ
ーリエ変換面での影響により、小さくできない。さら
に、ハフ変換された画像はフーリエ変換面で得られるの
で、小さい領域に集光するために検出し難く、その精度
は回析の影響等により余り高くない。さらに、回析光を
用いるために、検出できる光量は回析効率に依存し、入
射光量の大幅な損失を伴うので、入力光量を多くしなけ
ればならない等の課題を抱えている。
In the hologram-based method described above, the size of the sub-hologram corresponds to the thickness of the detectable line segment in the input image when Hough conversion is performed, and a fine line segment is also detected. In order to do so, the size of the sub-hologram must also be reduced. However, in practice, the size of the sub-hologram cannot be reduced due to the resolution of the photosensitive material and the influence on the Fourier transform plane due to diffraction. Furthermore, since the Hough-transformed image is obtained on the Fourier transform plane, it is difficult to detect because it is focused on a small area, and its accuracy is not so high due to the influence of diffraction and the like. Further, since the diffracted light is used, the amount of light that can be detected depends on the diffraction efficiency, and a large loss of the amount of incident light is involved, so there is a problem that the amount of input light must be increased.

【0006】本発明はこのような事情に鑑みてなされた
ものであり、その目的は、正確で高速にハフ変換できる
画像処理装置を提供することである。
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an image processing apparatus which can perform Hough conversion accurately and at high speed.

【0007】[0007]

【課題を解決するための手段】上記課題を解決し、上記
目的を達成するために、本発明の画像処理装置は、少な
くとも画像を読み出すための読み出し光と、この読み出
し光を照射し、入力画像を系内に入力するための画像入
力手段と、この画像入力手段により系内に入力された画
像情報にハフ変換を施すためのハフ変換部材と、このハ
フ変換部材により変換されたハフ変換情報を検出するた
めの検出手段とから構成され、上記ハフ変換部材は、微
小領域において入力光を1つの軸方向にのみ変換する部
分と、1方向のみに結像特性を持つ微小な集光素子アレ
イとから構成されている。
In order to solve the above-mentioned problems and achieve the above-mentioned object, an image processing apparatus of the present invention has at least a read-out light for reading out an image and the read-out light for irradiating an input image. Image input means for inputting into the system, a Hough conversion member for performing Hough conversion on the image information input into the system by this image input means, and Hough conversion information converted by this Hough conversion member. The Hough conversion member includes a portion for converting the input light in only one axial direction in a minute area and a minute condenser element array having an image forming characteristic in only one direction. It consists of

【0008】[0008]

【作用】上述のような構成を取れば、ハフ変換部材上に
照射された入力画像f(x,y)内での微小領域を通る
光束を1つの軸方向にのみ変換する部分によりある1つ
の方向に曲げ、さらに、この光束を集光素子により他の
方向に拡げることができる。したがって、これらを調整
することにより、微小領域に入射してくる光束を任意の
平面で任意の直線に変換することができる。つまり、こ
のような構成を用いれば、この変換を入力画像全体に一
度に施すことができるので、ハフ変換は瞬時に行われ
る。ハフ変換面において、入力画像中の直線の傾きと切
片を示す点では、全ての直線が通り、大きな強度を得る
ことができる。したがって、変換された座標平面上で
は、入力画像上に存在する直線の傾きと切片に対応した
点に光の強度を得ることになり、検出手段でこの平面の
強度分布を検出することで、ハフ変換の画像を得ること
ができる。
According to the above-mentioned structure, the Hough transforming member has a portion for converting the light flux passing through the minute area in the input image f (x, y) irradiated on the Hough transforming member into only one axial direction. It is possible to bend in one direction and further spread this light beam in another direction by a condensing element. Therefore, by adjusting these, it is possible to convert the light flux incident on the minute area into an arbitrary straight line on an arbitrary plane. That is, with such a configuration, this conversion can be applied to the entire input image at once, so that the Hough conversion is instantaneously performed. On the Hough transform plane, all the straight lines pass at the points indicating the slope and intercept of the straight lines in the input image, and a large intensity can be obtained. Therefore, on the transformed coordinate plane, the light intensity is obtained at a point corresponding to the slope and intercept of the straight line existing on the input image, and the intensity distribution of this plane is detected by the detection means, thereby You can get the converted image.

【0009】しかも、本発明においては、回析による操
作でないため、光学系における光量の損失は非常に少な
く、ハフ変換された画像も小さい領域に限定されること
もないので、入力画像中の細かな線分まで検出すること
が可能である。
Moreover, in the present invention, since the operation is not performed by diffraction, the loss of the light amount in the optical system is very small, and the Hough-transformed image is not limited to a small area. It is possible to detect even simple line segments.

【0010】[0010]

【実施例】本発明の画像処理装置の実施例について、図
1〜図5を参照にして説明する。図1は本発明の画像処
理装置の概念図であり、その中、200は画像を読み出
すための読み出し光であり、201は画像入力手段、こ
こでは液晶表示装置であり、202はハフ変換部材であ
り、さらに、203の出力面と204のCCDカメラで
検出手段を構成する。ハフ変換部材202について、具
体的に、図2〜図4を用いて説明する。まず、ハフ変換
部材202は、図2に示すように、入力光を1つの軸の
方向にのみ変換する部分として、焦点距離f0 の円筒レ
ンズ部分301と、焦点距離f1 を持つ微小円筒レンズ
302のアレイ部分とからなる。図1及び図2に示すよ
うに、円筒レンズ部分301と微小円筒レンズアレイ3
02の境界面303において、座標系(x1 ,y1 )を
設定した場合、円筒レンズ部分301は、入射光をx1
方向の焦点距離f0 の位置に結像させる特性を持ち、y
1 の方向には結像作用を持たせない。この円筒レンズ部
分301によって、図1に示すように、画像入力手段2
01上の入力画像f(x,y)上の点(x0 ,y0 )を
通る光線は、境界面303においては(x0',y0 )に
達し、入力画像f(x,y)の上の点(x0 ,y0 )を
中心とする領域Sを通る光束は、境界面303において
点(x0',y0 )を中心とする領域S’に達する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the image processing apparatus of the present invention will be described with reference to FIGS. FIG. 1 is a conceptual diagram of an image processing apparatus of the present invention, in which 200 is a reading light for reading an image, 201 is an image input means, here a liquid crystal display device, and 202 is a Hough conversion member. In addition, the output surface of 203 and the CCD camera of 204 constitute detection means. The Hough conversion member 202 will be specifically described with reference to FIGS. 2 to 4. First, the Hough transformation member 202, as shown in FIG. 2, the input light as part of converting only in the direction of one axis, microcylinder lenses having a cylindrical lens portion 301 of the focal length f 0, the focal length f 1 And an array portion of 302. As shown in FIGS. 1 and 2, the cylindrical lens portion 301 and the micro cylindrical lens array 3 are arranged.
When the coordinate system (x 1 , y 1 ) is set on the boundary surface 303 of No. 02, the cylindrical lens portion 301 reflects the incident light at x 1
Has a characteristic of forming an image at a focal length f 0 in the direction, and y
There is no imaging effect in the 1 direction. By this cylindrical lens portion 301, as shown in FIG.
The ray passing through the point (x 0 , y 0 ) on the input image f (x, y) on 01 reaches (x 0 ', y 0 ) on the boundary surface 303, and the input image f (x, y) The light flux passing through the area S centering on the point (x 0 , y 0 ) above the point reaches the area S ′ centering on the point (x 0 ', y 0 ) on the boundary surface 303.

【0011】一方、図3にこの境界面303の断面でハ
フ変換部材202を示したように、微小領域S’におい
て、微小円筒レンズ302は、その結像しない方向の軸
401が、境界面303の座標系で(x0',y0 )を中
心とし、傾きが1/x0 の直線となり、軸401に垂直
で結像する方向の軸402は、軸401と垂直な−x0
の傾きの直線を形成するように配置されている。
On the other hand, as shown in FIG. 3 showing the Hough conversion member 202 in the cross section of the boundary surface 303, in the minute region S ′, the minute cylindrical lens 302 has the axis 401 in the direction in which no image is formed, and the boundary surface 303. In the coordinate system of (x 0 ', y 0 ), a straight line with an inclination of 1 / x 0 is formed, and the axis 402 in the direction of forming an image perpendicular to the axis 401 is -x 0 perpendicular to the axis 401.
Are arranged so as to form a straight line of inclination.

【0012】さらに、図3中の軸402を含む平面での
このハフ変換部材202の断面図を図4に示す。図4に
示すように、領域S’に入射した光束は、図3で示す軸
401と垂直な軸402を含み、軸401に垂直な平面
の方向に結像特性を持っており、光束は図4で示すよう
に焦点距離f1 の位置に集光し、その後に拡がる。
Further, FIG. 4 shows a sectional view of the Hough converting member 202 in a plane including the axis 402 in FIG. As shown in FIG. 4, the light flux incident on the area S ′ includes an axis 402 perpendicular to the axis 401 shown in FIG. 3 and has an image forming characteristic in the direction of a plane perpendicular to the axis 401. As shown by 4, the light is condensed at the position of the focal length f 1 and then spreads.

【0013】つまり、入力画像f(x,y)の点
(x0 ,y0 )を中心とする微小領域Sは、円筒レンズ
部分301によって境界面303で点(x0',y0 )を
中心とする領域S’に達する。さらに、ここに達した光
束は、前述したような微小円筒レンズ302の作用によ
って、−x0 の傾きの方向において焦点距離f1 の位置
に集光した後に拡がる。したがって、境界面303から
0 だけ離れた面では、−x0 の傾きをなす直線とな
る。一方、この微小領域S’に入射した光束において、
円筒レンズ部分301の作用により、出力面(0,
0 )に達する光束が存在する。つまり、入力画像f
(x,y)上の点(x0 ,y0 )を中心とする領域Sを
通る光束は、出力面203では、傾き−x0 ,切片y0
の直線、つまり、Y=−x0 X+y0 の直線に変換され
る。これが入力画像上の全ての微小領域について一度に
瞬間に行われるので、前述したように、入力画像のハフ
変換が行われることになる。この出力面203でハフ変
換された画像を、検出手段において、あるしきい値を設
定し、しきい値処理を行えば、変換された画像の中から
強度の弱い部分は消え、強い強度を持つ傾きと切片の情
報を示す点のみを得ることができ、これらをCCDカメ
ラ204で検出すれば、所望の切片と傾きのみの情報を
得ることができる。
That is, in the minute area S centering on the point (x 0 , y 0 ) of the input image f (x, y), the point (x 0 ', y 0 ) is formed on the boundary surface 303 by the cylindrical lens portion 301. Reach the central area S '. Further, the light flux that has reached here spreads after being condensed at the position of the focal length f 1 in the direction of the inclination of −x 0 by the action of the minute cylindrical lens 302 as described above. Therefore, a surface distant from the boundary surface 303 by f 0 is a straight line having an inclination of −x 0 . On the other hand, in the light flux incident on this minute area S ′,
Due to the action of the cylindrical lens portion 301, the output surface (0,
There is a luminous flux reaching y 0 ). That is, the input image f
On the output surface 203, the light flux passing through the region S centered on the point (x 0 , y 0 ) on (x, y) has an inclination −x 0 and an intercept y 0.
Is converted into a straight line of Y = −x 0 X + y 0 . Since this is performed at once for all the minute areas on the input image, the Hough transform of the input image is performed as described above. If a threshold value is set in the detecting means for the Hough-transformed image on the output surface 203 and threshold processing is performed, the weak portion disappears from the converted image, and the image has a strong intensity. Only points indicating information on the slope and the intercept can be obtained, and if these are detected by the CCD camera 204, information on only the desired intercept and the slope can be obtained.

【0014】以上において、ハフ変換部材202の入力
光を1つの軸の方向にのみ変換する部材として、焦点距
離f0 の円筒レンズ部分301を用いたが、図5に示す
ように、入射面502を設定し、この面502から出力
面203までの距離をLとすると、入力画像の中心より
0 だけ離れた点を中心とする微小領域が、その領域に
入射する光束をθ=−arctan(x0 /L)の向きへ曲げ
るように、入射面502上でx0 の位置を通り、ある一
定の角度を持つガラス501等で構成される面を配置し
ても同様の作用が得られる。
In the above, the cylindrical lens portion 301 having the focal length f 0 is used as a member for converting the input light of the Hough converting member 202 only in the direction of one axis, but as shown in FIG. Is set, and the distance from the surface 502 to the output surface 203 is L, a minute area centered at a point distant from the center of the input image by x 0 makes the luminous flux incident on that area θ = −arctan ( The same effect can be obtained by arranging a surface made of glass 501 or the like that passes through the position of x 0 on the incident surface 502 and has a certain fixed angle so as to be bent in the direction of (x 0 / L).

【0015】以上、本発明の画像処理装置を実施例に基
づいて説明してきたが、本発明はこれら実施例に限定さ
れず種々の変形が可能である。例えば、ハフ変換部材2
02の円筒レンズ部分301、微小円筒レンズ302の
双方又は何れか一方をフレネルレンズ又はフレネルゾー
ンプレートで構成することもできる。
The image processing apparatus of the present invention has been described above based on the embodiments, but the present invention is not limited to these embodiments and various modifications can be made. For example, the Hough conversion member 2
It is also possible to configure both or either of the cylindrical lens portion 301 of No. 02 and the micro cylindrical lens 302 with a Fresnel lens or a Fresnel zone plate.

【0016】[0016]

【発明の効果】本発明の画像処理装置は、前述したよう
に、回析効果を用いることなく光学的なハフ変換を行う
ので、光量の損失が少なく、高精度、高速にハフ変換の
画像を得ることが可能となる。
As described above, the image processing apparatus of the present invention performs the optical Hough conversion without using the diffraction effect, so that the loss of the light amount is small, and the Hough converted image can be formed with high accuracy and high speed. It becomes possible to obtain.

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

【図1】本発明の画像処理装置の概念図である。FIG. 1 is a conceptual diagram of an image processing apparatus of the present invention.

【図2】本発明の画像処理装置のハフ変換部材の概念図
である。
FIG. 2 is a conceptual diagram of a Hough conversion member of the image processing apparatus of the present invention.

【図3】境界面での微小円筒レンズアレイの配置図であ
る。
FIG. 3 is a layout view of a micro cylindrical lens array on a boundary surface.

【図4】図3の1つの軸に沿う断面図である。FIG. 4 is a cross-sectional view along one axis of FIG.

【図5】別の実施例の図4と同様な断面図である。5 is a sectional view similar to FIG. 4 of another embodiment.

【図6】従来のハフ変換光学装置を説明するための図で
ある。
FIG. 6 is a diagram for explaining a conventional Hough conversion optical device.

【符号の説明】[Explanation of symbols]

200…読み出し光 201…画像入力手段 202…ハフ変換部材 203…出力面 204…CCDカメラ 301…円筒レンズ部分 302…微小円筒レンズ 303…境界面 401、402…軸 501…偏向ガラス部材 502…入射面 S、S’…領域 200 ... Read-out light 201 ... Image input means 202 ... Hough conversion member 203 ... Output surface 204 ... CCD camera 301 ... Cylindrical lens part 302 ... Micro cylindrical lens 303 ... Boundary surface 401, 402 ... Axis 501 ... Deflection glass member 502 ... Incident surface S, S '... area

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 少なくとも画像を読み出すための読み出
し光と、この読み出し光を照射し、入力画像を系内に入
力するための画像入力手段と、この画像入力手段により
系内に入力された画像情報にハフ変換を施すためのハフ
変換部材と、このハフ変換部材により変換されたハフ変
換情報を検出するための検出手段とから構成された画像
処理装置。
1. A reading light for reading at least an image, image input means for irradiating the reading light and inputting an input image into the system, and image information inputted into the system by the image input means. An image processing apparatus comprising a Hough transform member for subjecting the Huff transform member to a Huff transform member, and a detection means for detecting the Hough transform information converted by the Hough transform member.
【請求項2】 前記ハフ変換部材は、微小領域において
入力光を1つの軸方向にのみ変換する部分と、1方向の
みに結像特性を持つ微小な集光素子アレイとから構成さ
れていることを特徴とする請求項1記載の画像処理装
置。
2. The Hough conversion member is composed of a portion that converts input light in only one axis direction in a minute area and a minute condenser element array having an image forming characteristic in only one direction. The image processing apparatus according to claim 1, wherein:
JP13725393A 1993-06-08 1993-06-08 Image processing device Expired - Fee Related JP3327999B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13725393A JP3327999B2 (en) 1993-06-08 1993-06-08 Image processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13725393A JP3327999B2 (en) 1993-06-08 1993-06-08 Image processing device

Publications (2)

Publication Number Publication Date
JPH06348843A true JPH06348843A (en) 1994-12-22
JP3327999B2 JP3327999B2 (en) 2002-09-24

Family

ID=15194345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13725393A Expired - Fee Related JP3327999B2 (en) 1993-06-08 1993-06-08 Image processing device

Country Status (1)

Country Link
JP (1) JP3327999B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022003801A (en) * 2020-09-24 2022-01-11 マクセル株式会社 Imaging apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022003801A (en) * 2020-09-24 2022-01-11 マクセル株式会社 Imaging apparatus
JP2022177064A (en) * 2020-09-24 2022-11-30 マクセル株式会社 Image generation method

Also Published As

Publication number Publication date
JP3327999B2 (en) 2002-09-24

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