JPH06185993A - Inputting system for three-dimensional surface data - Google Patents
Inputting system for three-dimensional surface dataInfo
- Publication number
- JPH06185993A JPH06185993A JP33937292A JP33937292A JPH06185993A JP H06185993 A JPH06185993 A JP H06185993A JP 33937292 A JP33937292 A JP 33937292A JP 33937292 A JP33937292 A JP 33937292A JP H06185993 A JPH06185993 A JP H06185993A
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- Prior art keywords
- boundary
- shape
- measured
- irradiation position
- laser
- Prior art date
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Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、物体表面の形状を非接
触で計測する三次元表面データ入力システムに関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional surface data input system for contactlessly measuring the shape of an object surface.
【０００２】[0002]
【従来の技術】従来のこの種のシステムは、物体表面の
形状計測をレーザ光などを計測物体表面に照射し、その
レーザ光の照射位置をとらえることで行うよう構成され
ていた。すなわち、非接触で物体表面の形状を計測する
には、通常、レーザ光や白色光など、様々な波長をもつ
光（もっぱら可視光）を使用し、これらの人工もしくは
自然の光を物体表面にあて、その反射を光センサによっ
て検出し、それから物体表面の形状を算出している。2. Description of the Related Art A conventional system of this type is configured to measure the shape of the surface of an object by irradiating the surface of the object to be measured with laser light or the like and capturing the irradiation position of the laser light. That is, in order to measure the shape of an object surface in a non-contact manner, light with various wavelengths (mainly visible light) such as laser light or white light is usually used, and these artificial or natural lights are applied to the object surface. Then, the reflection is detected by an optical sensor, and then the shape of the object surface is calculated.
【０００３】このような従来の計測システムの例として
は、形状計測用の赤色レーザ光源およびＴＶカメラを備
えた回転式スキャナ（参考文献：末永、渡部「３Ｄ形状
と輝度（色）の同時計測が可能なスキャナとその顔面像
計測への応用」情報処理学会コンピュータビジョン研究
会資料、６７−５、１９９０年７月１９日）がある。こ
のシステムは、形状とカラーを同時に計測する能力を有
している。An example of such a conventional measuring system is a rotary scanner equipped with a red laser light source for shape measurement and a TV camera (reference document: Suenaga, Watanabe "3D shape and luminance (color) simultaneous measurement. Possible Scanner and Its Application to Facial Image Measurement ", Information Processing Society of Japan, Computer Vision Research Group, 67-5, July 19, 1990). This system has the ability to measure shape and color simultaneously.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の技術による三次元形状計測システムでは、レーザ光
等を計測物体表面に照射し、そのレーザ光等の照射位置
をとらえることで行うよう構成されているため、計測物
体の反射特性によってはレーザ光の位置をとらえること
ができず、形状計測データが求められないという欠点が
あった。上記参考文献のシステムについて述べれば、形
状計測ユニットで赤色レーザ光の反射位置をとらえる際
に、計測物体が黒い場合やレーザ光が乱反射されるよう
な領域では、形状計測データを求めることができない。
以下に、この点についてもう少し詳しく説明する。However, the above-mentioned conventional three-dimensional shape measuring system is configured to irradiate the surface of the object to be measured with a laser beam or the like and capture the irradiation position of the laser beam or the like. Therefore, there is a drawback in that the position of the laser beam cannot be detected depending on the reflection characteristic of the measurement object, and the shape measurement data cannot be obtained. As for the system of the above-mentioned reference, when the reflection position of the red laser light is detected by the shape measurement unit, the shape measurement data cannot be obtained in the case where the measurement object is black or the region where the laser light is diffusely reflected.
This point will be described in more detail below.
【０００５】本来、三次元形状計測は、物体の表面形状
を計測するが、使用する可視光が物体表面にあてられた
場合には、その表面の反射特性に従って、拡散反射、鏡
面反射または透過するので、その可視光の照射位置をＴ
Ｖカメラにてとらえることができない場合があり、物体
の本来の表面形状を正確に計測することは困難である。
このように、従来方式では、現実に存在するような様々
な反射特性をもつ物体の表面形状を正確に計測すること
はきわめて困難であった。Originally, three-dimensional shape measurement measures the surface shape of an object, but when visible light used is applied to the surface of the object, it diffuses, specularly reflects or transmits according to the reflection characteristics of the surface. Therefore, the irradiation position of the visible light is T
In some cases, it cannot be captured by the V camera, and it is difficult to accurately measure the original surface shape of the object.
As described above, in the conventional method, it is extremely difficult to accurately measure the surface shape of an object having various reflection characteristics that actually exists.
【０００６】例えば、上記参考文献のシステムを使用し
て人間の頭部を計測する場合、顔（例えば、額、目、
鼻、口、頬や耳のような皮膚）の領域はほぼ適切な三次
元形状が計測できるが、頭髪（とくに黒髪）のように、
可視光の反射が小さく、しかも拡散反射してしまう領域
では、レーザ光の照射位置をＴＶカメラがとらえること
ができず、正しい三次元形状計測ができないという欠点
があった。For example, when measuring the head of a human using the system of the above reference, the face (for example, forehead, eye,
Areas of the nose, mouth, cheeks, and ears) can measure almost appropriate three-dimensional shapes, but like hair (especially black hair),
In a region where the visible light is smallly reflected and diffused and reflected, the TV camera cannot catch the irradiation position of the laser light, and the three-dimensional shape cannot be measured correctly.
【０００７】本発明は、上記問題点を解決するためにな
されたものであり、その目的は、計測物体の様々な反射
特性に影響されることなく、光源と撮像手段を用いて非
接触でその計測物体の三次元形状を正しく計測できるよ
うにする三次元表面データ入力システムを提供すること
にある。The present invention has been made in order to solve the above problems, and its purpose is to use a light source and an imaging means in a non-contact manner without being affected by various reflection characteristics of a measurement object. An object of the present invention is to provide a three-dimensional surface data input system capable of accurately measuring the three-dimensional shape of a measurement object.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
め、本発明では、物体表面の形状を計測するために光源
およびその光源の光の照射位置をとらえる撮像手段を備
えた三次元表面データ入力システムにおいて、光源から
物体に光を照射し、その照射位置を撮像手段によりとら
えて該物体の表面を計測して該物体表面の形状データを
求める第１の計測手段と、前記物体全体の映像を撮像手
段によりとらえて、該物体と背景の境界位置からも該物
体の形状データを求めるとともに、その境界位置の輝度
を記録する第２の計測手段と、前記記録された境界位置
の輝度の大きな領域では、光の照射位置から計測できる
前記第１の計測手段の形状データを選択し、該記録され
た境界位置の輝度の小さな領域では、該境界位置から計
測できる前記第２の計測手段の形状データを選択する選
択手段と、を具備する構成としている。In order to achieve the above object, according to the present invention, three-dimensional surface data provided with a light source for measuring the shape of the surface of an object and an imaging means for capturing the irradiation position of the light from the light source. In the input system, first measuring means for irradiating an object with light from a light source, capturing the irradiation position by an imaging means to measure the surface of the object to obtain shape data of the surface of the object, and an image of the entire object. And the shape data of the object are obtained from the boundary position between the object and the background, the second measuring means for recording the brightness at the boundary position, and the large brightness at the recorded boundary position. In the area, the shape data of the first measuring means that can measure from the light irradiation position is selected, and in the area in which the brightness of the recorded boundary position is small, the shape data can be measured from the boundary position. It has a configuration comprising a selection means for selecting the shape data of the measuring means.
【０００９】[0009]
【作用】本発明の三次元表面データ入力システムでは、
計測する物体への光の照射位置を撮像手段によりとらえ
て三次元形状計測を行うほかに、計測する物体と背景の
境界を撮像手段によってとらえることで三次元形状計測
を行いつつ、その境界の輝度を記録し、その境界の輝度
によって光の照射位置により計測した形状データと境界
により計測した形状データの選択を行い、その境界の輝
度が小さいため光の照射位置による計測ができないよう
な反射特性の領域では、境界により計測した形状データ
を使用することで、光源と撮像手段を用いても、計測物
体の表面の反射特性によらずに、物体の形状を正確に計
測できるようにする。In the three-dimensional surface data input system of the present invention,
In addition to performing three-dimensional shape measurement by capturing the light irradiation position on the object to be measured by the image capturing means, the boundary of the object to be measured and the background is captured by the image capturing means while performing the three-dimensional shape measurement and the brightness of the boundary. The shape data measured by the irradiation position of light and the shape data measured by the boundary are selected according to the brightness of the boundary, and the reflection characteristics of the reflection characteristics that cannot be measured by the irradiation position of the light because the brightness of the boundary is small. In the region, by using the shape data measured by the boundary, it is possible to accurately measure the shape of the object regardless of the reflection characteristic of the surface of the measurement object, even if the light source and the imaging unit are used.
【００１０】[0010]
【実施例】以下、本発明の実施例を、図面を参照して詳
細に説明する。Embodiments of the present invention will now be described in detail with reference to the drawings.
【００１１】図１は本発明の一実施例を示す構成図であ
る。図において、９９は計測物体設置台、１００は計測
物体、１０１は光源の例としてのレーザ光源、１０２は
レーザ分散レンズ、１０３は撮像手段の例としてのＴＶ
カメラ、１０４はレーザ照射位置、１０５は計測物体と
背景の境界、１０６は境界検出画像、１０７はレーザ照
射位置検出画像、１０８は境界検出ユニット、１０８′
は境界検出画像１０６における計測物体と背景の境界、
１０９はレーザ照射位置検出ユニット、１０９′はレー
ザ照射位置検出画像１０７におけるレーザの照射位置、
１１０は境界三次元形状メモリ、１１１は表面輝度メモ
リ、１１２はレーザ三次元形状メモリ、１１３は形状デ
ータ選択ユニットを示している。FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 99 is a measurement object installation stand, 100 is a measurement object, 101 is a laser light source as an example of a light source, 102 is a laser dispersion lens, and 103 is a TV as an example of an image pickup means.
A camera, 104 is a laser irradiation position, 105 is a boundary between the measurement object and the background, 106 is a boundary detection image, 107 is a laser irradiation position detection image, 108 is a boundary detection unit, and 108 '.
Is a boundary between the measurement object and the background in the boundary detection image 106,
109 is a laser irradiation position detection unit, 109 'is a laser irradiation position in the laser irradiation position detection image 107,
110 is a boundary three-dimensional shape memory, 111 is a surface brightness memory, 112 is a laser three-dimensional shape memory, and 113 is a shape data selection unit.
【００１２】本実施例では、計測物体１００を設置台９
９に設置して、この設置台９９を回転させることにより
三次元形状を計測する場合を例とする。このように設置
台９９の上で回転される計測物体１００に対し、レーザ
光源１０１からレーザ分散レンズ１０２を介してレーザ
光が照射され、レーザ照射位置１０４で例示されている
ようにレーザ光がその表面にあてられる。ここで、計測
物体１００は、上半分がほとんどレーザ光を反射しない
様な表面特性を持ち、下半分がレーザ光の照射された位
置がわかる表面特性を持つものとする。ＴＶカメラ１０
３は、レーザ照射位置１０４を含む計測物体１００の表
面映像をとらえる位置に配置されているものとする。In this embodiment, the measuring object 100 is mounted on the installation table 9
An example will be described in which the three-dimensional shape is measured by installing the unit on a substrate 9 and rotating the installation table 99. Laser light is emitted from the laser light source 101 through the laser dispersion lens 102 to the measurement object 100 that is rotated on the installation table 99 in this manner, and the laser light is emitted as illustrated at the laser irradiation position 104. It is applied to the surface. Here, it is assumed that the upper half of the measurement object 100 has a surface characteristic that hardly reflects the laser beam, and the lower half has a surface characteristic that the position where the laser beam is irradiated can be seen. TV camera 10
3 is arranged at a position where a surface image of the measurement object 100 including the laser irradiation position 104 can be captured.
【００１３】ＴＶカメラ１０３からの映像信号は、一方
では境界検出ユニット１０８に入力され、他方ではレー
ザ照射位置検出ユニット１０９に入力される。図では説
明のために、それぞれのユニット１０８，１０９が対象
としている検出領域を、境界検出画像１０６、レーザ照
射位置検出画像１０７として示している。境界検出画像
１０６では、１０８′のように計測物体と背景の境界の
画像中での位置が検出でき、物体の三次元形状を計測す
るために境界検出ユニット１０８にて使用される。この
境界検出ユニット１０８は、境界１０８′から検出され
た三次元形状を境界三次元形状メモリ１１０に蓄積し、
その境界１０８′での計測物体の輝度を表面輝度メモリ
１１１に蓄積する。レーザ照射位置検出画像１０７で
は、１０９′のように計測物体上のレーザの照射位置の
画像中での位置が検出でき、計測物体の三次元形状を計
測するためにレーザ照射位置検出ユニット１０９にて使
用される。このレーザ照射位置検出ユニット１０９は、
レーザ照射位置１０９′から検出された三次元形状をレ
ーザ三次元形状メモリ１１２に蓄積する。形状データ選
択ユニット１１３は、以上の各メモリ１１０，１１１，
１１２を参照可能に接続され、まず、表面輝度メモリ１
１１を参照して境界位置の輝度の大小に基づいて、境界
三次元形状メモリ１１０の形状データとレーザ三次元形
状メモリ１１２の形状データのいずれかを選択し、計測
データとして出力する。The video signal from the TV camera 103 is input to the boundary detection unit 108 on the one hand and to the laser irradiation position detection unit 109 on the other hand. In the figure, for the sake of explanation, the detection areas targeted by the respective units 108 and 109 are shown as a boundary detection image 106 and a laser irradiation position detection image 107. In the boundary detection image 106, the position of the boundary between the measurement object and the background in the image can be detected as in 108 ', and is used by the boundary detection unit 108 to measure the three-dimensional shape of the object. The boundary detection unit 108 stores the three-dimensional shape detected from the boundary 108 'in the boundary three-dimensional shape memory 110,
The brightness of the measurement object at the boundary 108 'is stored in the surface brightness memory 111. In the laser irradiation position detection image 107, the position in the image of the irradiation position of the laser on the measurement object can be detected as in 109 ′, and the laser irradiation position detection unit 109 measures the three-dimensional shape of the measurement object. used. This laser irradiation position detection unit 109
The three-dimensional shape detected from the laser irradiation position 109 'is stored in the laser three-dimensional shape memory 112. The shape data selection unit 113 includes the memories 110, 111,
112 is connected so that it can be referred to. First, the surface brightness memory 1
11, either the shape data of the boundary three-dimensional shape memory 110 or the shape data of the laser three-dimensional shape memory 112 is selected based on the magnitude of the brightness at the boundary position and is output as measurement data.
【００１４】以上のように構成した実施例の動作および
作用を次に述べる。The operation and action of the embodiment configured as described above will be described below.
【００１５】計測物体設置台９９の回転によって、計測
物体１００の表面の三次元形状が、境界検出ユニット１
０８とレーザ照射位置検出ユニット１０９のそれぞれで
並行して計測されて、各三次元形状データが境界三次元
形状メモリ１１０、レーザ三次元形状メモリ１１２に蓄
積されるとともに、表面の輝度が表面輝度メモリ１１１
に蓄積される。ここで、境界検出ユニット１０８にて検
出する三次元形状とレーザ照射位置検出ユニット１０９
にて検出する三次元形状の位置合わせは、レーザ光源１
０１とＴＶカメラ１０３の設置位置により算出されて行
われる。形状データ選択ユニット１１３は、表面輝度メ
モリ１１１の内容に基づき、形状データを境界三次元形
状メモリ１１０から用いるべきか、レーザ三次元形状メ
モリ１１２から用いるべきか選択する。具体的には、境
界位置の輝度の大きな領域ではレーザ光の照射位置から
計測できるレーザ三次元形状メモリ１１２の形状データ
を用い、境界位置の輝度の小さな領域では、境界位置か
ら計測できる境界三次元形状メモリ１１０の形状データ
を用いる。即ち、形状データ選択ユニット１１３の出力
からは、計測物体１００がレーザの照射位置をとらえら
れないような反射特性を持つ場合でも、計測物体１００
の三次元表面データが得られることになる。By rotating the measuring object installation base 99, the three-dimensional shape of the surface of the measuring object 100 is changed to the boundary detecting unit 1.
08 and the laser irradiation position detection unit 109 are measured in parallel, the respective three-dimensional shape data are accumulated in the boundary three-dimensional shape memory 110 and the laser three-dimensional shape memory 112, and the surface brightness is stored in the surface brightness memory. 111
Accumulated in. Here, the three-dimensional shape detected by the boundary detection unit 108 and the laser irradiation position detection unit 109
The laser light source 1 is used to align the three-dimensional shape detected by
01 and the installation position of the TV camera 103. The shape data selection unit 113 selects whether to use the shape data from the boundary three-dimensional shape memory 110 or the laser three-dimensional shape memory 112 based on the content of the surface brightness memory 111. Specifically, the shape data of the laser three-dimensional shape memory 112 that can be measured from the irradiation position of the laser light is used in the area where the brightness at the boundary position is large, and the boundary three-dimensional that can be measured from the boundary position is used in the area where the brightness at the boundary position is small. The shape data of the shape memory 110 is used. That is, even if the measurement object 100 has a reflection characteristic such that the irradiation position of the laser cannot be detected from the output of the shape data selection unit 113, the measurement object 100 can be measured.
The three-dimensional surface data of will be obtained.
【００１６】以上によって、レーザの照射位置をとらえ
られないような反射特性をもつ物体の三次元表面データ
を正確に計測することができる。例えば、人物の頭髪の
ような場合、すなわち形状計測ユニット内のＴＶカメラ
によって、レーザ光の照射位置を検出できないような場
合にも、境界領域から求められた形状データにおいて、
その輝度が小さいことからその境界領域から求められた
形状を用いることで、形状を正確に計測することができ
る。また、物体の表面が全く反射しない場合や、物体上
に鏡面反射面が存在する場合にも同様に、表面カラーを
正確に計測することができる。As described above, it is possible to accurately measure the three-dimensional surface data of an object having a reflection characteristic such that the irradiation position of the laser cannot be detected. For example, even in the case of a person's hair, that is, even when the irradiation position of the laser beam cannot be detected by the TV camera in the shape measuring unit, in the shape data obtained from the boundary area,
Since the brightness is low, the shape can be accurately measured by using the shape obtained from the boundary area. In addition, even when the surface of the object does not reflect at all, or when there is a specular reflection surface on the object, the surface color can be accurately measured.
【００１７】なお、上記の実施例では設置台９９を回転
させて三次元形状を測定する例を示したが、設置台９９
が回転するのではなく、レーザ光源１０１、レーザ分散
レンズ１０２、ＴＶカメラ１０３が回転して計測物体１
００のまわりを回転したり移動したりすることで三次元
形状を計測する場合にも適用できることは当然である。
このように本発明は、その主旨に沿って種々に応用さ
れ、種々の実施態様を取り得るものである。In the above embodiment, the installation table 99 is rotated to measure the three-dimensional shape.
Does not rotate, but the laser light source 101, the laser dispersion lens 102, and the TV camera 103 rotate and the measurement object 1
Of course, it can also be applied to the case of measuring a three-dimensional shape by rotating or moving around 00.
As described above, the present invention can be applied in various ways in accordance with the gist thereof and can take various embodiments.
【００１８】[0018]
【発明の効果】以上説明したように、本発明の三次元表
面データ入力システムによれば、光源から光を照射し、
その照射位置を撮像手段によりとらえて物体の表面を計
測することによって物体表面の形状データを求める際
に、光の照射位置のみならず、物体全体の映像を撮像手
段によってとらえて、物体と背景の境界の位置からも物
体の形状データを求めつつ、その境界位置の輝度を記録
し、境界位置の輝度の大きな領域では光の照射位置から
計測できる形状データを用い、境界位置の輝度の小さい
領域では、境界位置から計測できる形状データを用いる
ことで、光の照射位置をとらえられないような反射特性
をもつ物体の三次元表面データを正確に計測することが
できる。As described above, according to the three-dimensional surface data input system of the present invention, light is emitted from the light source,
When obtaining the shape data of the object surface by measuring the surface of the object by capturing the irradiation position by the image capturing means, not only the light irradiation position but also the image of the entire object is captured by the image capturing means and the object and background While obtaining the shape data of the object from the boundary position, the brightness of the boundary position is recorded, and the shape data that can be measured from the light irradiation position is used in the area where the brightness of the boundary position is large, and the area where the brightness of the boundary position is small is used. By using the shape data that can be measured from the boundary position, it is possible to accurately measure the three-dimensional surface data of an object having a reflection characteristic such that the light irradiation position cannot be captured.
【図１】本発明の一実施例を示す構成図FIG. 1 is a configuration diagram showing an embodiment of the present invention.
９９…計測物体設置台 １００…計測物体 １０１…レーザ光源 １０２…レーザ分散レンズ １０３…ＴＶカメラ １０４…レーザ照射位置 １０５…計測物体と背景の境界 １０６…境界検出画像 １０７…レーザ照射位置検出画像 １０８…境界検出ユニット １０８′…境界検出画像における計測物体と背景の境界 １０９…レーザ照射位置検出ユニット １０９′…レーザ照射位置検出画像におけるレーザの照
射位置 １１０…境界三次元形状メモリ １１１…表面輝度メモリ １１２…レーザ三次元形状メモリ １１３…形状データ選択ユニット99 ... Measurement object installation stand 100 ... Measurement object 101 ... Laser light source 102 ... Laser dispersion lens 103 ... TV camera 104 ... Laser irradiation position 105 ... Boundary between measurement object and background 106 ... Boundary detection image 107 ... Laser irradiation position detection image 108 ... Boundary detection unit 108 '... Boundary between measurement object and background in boundary detection image 109 ... Laser irradiation position detection unit 109' ... Laser irradiation position in laser irradiation position detection image 110 ... Boundary three-dimensional shape memory 111 ... Surface brightness memory 112 ... Laser three-dimensional shape memory 113 ... Shape data selection unit
Claims (1)
よびその光源の光の照射位置をとらえる撮像手段を備え
た三次元表面データ入力システムにおいて、 光源から物体に光を照射し、その照射位置を撮像手段に
よりとらえて該物体の表面を計測して該物体表面の形状
データを求める第１の計測手段と、 前記物体全体の映像を撮像手段によりとらえて、該物体
と背景の境界位置からも該物体の形状データを求めると
ともに、その境界位置の輝度を記録する第２の計測手段
と、 前記記録された境界位置の輝度の大きな領域では、光の
照射位置から計測できる前記第１の計測手段の形状デー
タを選択し、該記録された境界位置の輝度の小さな領域
では、該境界位置から計測できる前記第２の計測手段の
形状データを選択する選択手段と、を具備することを特
徴とする三次元表面データ入力システム。1. A three-dimensional surface data input system comprising a light source for measuring the shape of the surface of an object and an imaging means for capturing the irradiation position of the light of the light source, wherein the object is irradiated with light from the light source and the irradiation position thereof is measured. And a first measuring means for measuring the surface of the object to obtain shape data of the surface of the object, and capturing the image of the entire object by the imaging means, and also from the boundary position between the object and the background. Second measuring means for obtaining the shape data of the object and recording the brightness at the boundary position, and the first measuring means capable of measuring from the light irradiation position in the recorded area of high brightness at the boundary position. Selecting shape data, and selecting the shape data of the second measuring means capable of measuring from the boundary position in the recorded area of low brightness at the boundary position. A three-dimensional surface data input system characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33937292A JP2601607B2 (en) | 1992-12-21 | 1992-12-21 | 3D surface data input system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33937292A JP2601607B2 (en) | 1992-12-21 | 1992-12-21 | 3D surface data input system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06185993A true JPH06185993A (en) | 1994-07-08 |
| JP2601607B2 JP2601607B2 (en) | 1997-04-16 |
Family
ID=18326842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33937292A Expired - Fee Related JP2601607B2 (en) | 1992-12-21 | 1992-12-21 | 3D surface data input system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2601607B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6775403B1 (en) | 1999-02-02 | 2004-08-10 | Minolta Co., Ltd. | Device for and method of processing 3-D shape data |
| US7016527B2 (en) | 2001-02-09 | 2006-03-21 | Minolta Co., Ltd. | Method for processing image data and modeling device |
| US7027641B2 (en) | 1999-12-27 | 2006-04-11 | Minolta Co., Ltd. | Three-dimensional shape measuring system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4635392B2 (en) | 2001-08-09 | 2011-02-23 | コニカミノルタホールディングス株式会社 | 3D object surface shape modeling apparatus and program |
-
1992
- 1992-12-21 JP JP33937292A patent/JP2601607B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6775403B1 (en) | 1999-02-02 | 2004-08-10 | Minolta Co., Ltd. | Device for and method of processing 3-D shape data |
| US7027641B2 (en) | 1999-12-27 | 2006-04-11 | Minolta Co., Ltd. | Three-dimensional shape measuring system |
| US7016527B2 (en) | 2001-02-09 | 2006-03-21 | Minolta Co., Ltd. | Method for processing image data and modeling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2601607B2 (en) | 1997-04-16 |
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