公开(公告)号：EP2919185A1

公开(公告)日：2015-09-16

申请号：EP13853936.6

申请日：2013-11-08

Applicant: FUJIFILM Corporation

Inventor： TOZUKA Koichi ,  ISHIBASHI Hideyasu ,  OSANAI Ryusuke ,  YOSHIDA Naoko

IPC: G06T1/00 ,  H04N1/46 ,  H04N1/60 ,  H04N9/64

CPC classification number: H04N13/15 ,  A61B5/0077 ,  A61B5/0088 ,  A61B5/1032 ,  A61B5/441 ,  A61C19/04 ,  G01J3/508 ,  G01J3/52 ,  G01J3/524 ,  G06T7/90 ,  G06T11/001 ,  G06T2207/10024 ,  G06T2207/30036 ,  H04N1/6086 ,  H04N9/643 ,  H04N9/735 ,  H04N13/257

Abstract: This camera system comprises: a database which stores a plurality of three-dimensional profiles, wherein conversion relations, which are computed from image data which is obtained by photographing a plurality of reference color three-dimensional objects whereto reference colorimetric values are pre-appended and corresponding reference colorimetric values, are associated with a plurality of photographic illumination conditions; a selection unit which, on the basis of an illumination condition when photographing a three-dimensional photographic subject, selects the three-dimensional color profile corresponding to said illumination condition; and a color conversion unit which, on the basis of the selected three-dimensional color profile, carries out a color conversion from the image data of the photographed image of the photographed three-dimensional photographic subject to a colorimetric value.

公开(公告)号：EP2739206A4

公开(公告)日：2015-03-11

申请号：EP12820383

申请日：2012-07-18

Applicant: CARESTREAM HEALTH INC

Inventor： LIANG RONGGUANG ,  MILCH JAMES ,  INGLESE JEAN-MARC

IPC: A61B5/00

CPC classification number: A61B5/4547 ,  A61B5/0088 ,  G01J3/0229 ,  G01J3/0289 ,  G01J3/501 ,  G01J3/508

公开(公告)号：EP2688479A4

公开(公告)日：2014-09-10

申请号：EP12760500

申请日：2012-03-19

Applicant: CARESTREAM HEALTH INC

Inventor： WANG WEI ,  SONG LIWEI ,  WU YINGQIAN ,  WONG VICTOR C ,  YAN JIAYONG

IPC: G06T7/00 ,  A61B6/14

CPC classification number: G06T7/0012 ,  A61B5/0071 ,  A61B5/0088 ,  A61B5/4547 ,  A61B5/7267 ,  A61B6/14 ,  A61B6/5217 ,  A61C9/0046 ,  G01J3/508 ,  G06K2209/05 ,  G06T2207/10064 ,  G06T2207/20081 ,  G06T2207/30036

Abstract: A method for intraoral imaging obtains a digital image of one or more teeth and detects first and second boundaries. At each of the first and second boundaries, there is calculated a boundary ratio of mean gray-scale values for the tooth area on one side of the boundary to mean gray-scale values for background areas on the other side. The calculated boundary ratios are stored. A third ratio of the mean gray-scale values for the tooth area near the first boundary to the mean gray-scale values for the tooth area near the second boundary is calculated and stored. A vector is formed and stored that contains at least the calculated boundary ratios and the third ratio. The tooth surface is classified as either smooth or occlusal according to the stored vector. The image data is processed according to the classification and processing results are reported.

公开(公告)号：EP1903502A3

公开(公告)日：2012-07-11

申请号：EP07018096.3

申请日：2007-09-14

Applicant: Olympus Corporation

Inventor： Komiya, Yasuhiro

IPC: G06T7/00 ,  A61B5/00 ,  A61C19/10

CPC classification number: G01J3/508 ,  G06T7/0012 ,  G06T7/12 ,  G06T7/73 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/30036

Abstract: An image storage portion 31 stores image data that is input. An outline detecting portion 32 detects an outline of tooth that is the object of color measurement in the image based on the image data. A specular reflection region detecting portion 33 detects the position of a specular reflection region in the tooth that is the object of color measurement based on the data of each pixel that constitutes the image. A rectangular region setting portion 34 sets an analysis region to become the object of analysis processing in the image based on the position of the specular reflection region that is detected by the specular reflection region detecting portion 33. In accordance with the present invention, it is possible to avoid setting an analysis region in a specular reflection region when setting an analysis region, that is the object of analysis processing of an image, in the image.

Abstract translation: 图像存储部31存储输入的图像数据。 轮廓检测部32基于图像数据检测作为图像中的颜色测量对象的牙轮廓。 镜面反射区域检测部分33基于构成图像的每个像素的数据来检测作为颜色测量对象的齿中的镜面反射区域的位置。 矩形区域设定部34基于由镜面反射区域检测部33检测出的镜面反射区域的位置，将分析区域设定为图像中的分析处理对象。根据本发明， 在图像中设定作为图像的分析处理对象的分析区域时，可以避免在镜面反射区域中设定分析区域。

公开(公告)号：EP2407763A2

公开(公告)日：2012-01-18

申请号：EP11005573.8

申请日：2011-07-07

Applicant: Carestream Health, Inc.

Inventor： Wong, Victor C. ,  Milch, James R. ,  Ray, Lawrence A. ,  Burns, Peter D.

IPC: G01J3/46 ,  G01J3/50

CPC classification number: A61B1/24 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/04 ,  A61B1/0638 ,  G01J3/46 ,  G01J3/462 ,  G01J3/465 ,  G01J3/50 ,  G01J3/501 ,  G01J3/508 ,  G01J3/524

Abstract: A method and apparatus for generating a color mapping for a dental object. The method includes generating a transformation matrix according to a set of spectral reflectance data for a statistically valid sampling of teeth. Illumination is directed toward the dental object over at least a first, a second, and a third wavelength band, one wavelength band at a time. For each of a plurality of pixels in an imaging array, an image data value is obtained, corresponding to each of the at least first, second, and third wavelength bands. The transformation matrix is applied to form the color mapping by generating a set of visual color values for each of the plurality of pixels according to the obtained image data values and according to image data values obtained from a reference object at the at least first, second, and third wavelength bands. The color mapping can be stored in an electronic memory.

Abstract translation: 一种用于产生牙科物体的颜色映射的方法和装置。 该方法包括根据用于统计学上有效的牙齿取样的一组光谱反射率数据产生变换矩阵。 照射通过至少第一，第二和第三波长带，一次一个波长带指向牙科物体。 对于成像阵列中的多个像素中的每一个，获得对应于至少第一，第二和第三波长带中的每一个的图像数据值。 通过根据获得的图像数据值生成一组视觉颜色值，并且根据从至少第一，第二的参考对象获得的图像数据值来应用变换矩阵以形成颜色映射 和第三波长带。 颜色映射可以存储在电子存储器中。

公开(公告)号：EP1707928A4

公开(公告)日：2011-03-09

申请号：EP05704004

申请日：2005-01-21

Applicant: OLYMPUS CORP

Inventor： KONNO OSAMU ,  KOMIYA YASUHIRO ,  WADA TORU ,  SATO NOBUMASA

IPC: G01J3/46 ,  A61B5/00 ,  A61C19/04 ,  G01J3/02 ,  G01J3/10 ,  G01J3/50 ,  G03B15/00 ,  H04N1/60

CPC classification number: G01J3/50 ,  A61B5/0013 ,  A61B5/4547 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0224 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/501 ,  G01J3/508 ,  G01J3/51

Abstract: The image processing system is applied to dentistry, for example, and performs photography of the teeth of a patient while causing a plurality of illumination light LEDs of different wavelengths to emit light by means of a photography device(1A) when producing a crown repair or denture of the patient, whereby image data are acquired. The image data are transmitted to a dental filing system (2A) constituting a processing device where color reproduction data are determined through computation. In addition, color reproduction data are transmitted to the dental technician's office (55) via a public switched network. Therefore, a repair material compound ratio calculation database (56) is searched and the compound data for a material that matches the hue of the patient's teeth are found, whereby a crown repair or denture or the like that very closely matches the color of the patient's teeth is produced.

公开(公告)号：EP2280261A1

公开(公告)日：2011-02-02

申请号：EP10185970.0

申请日：2007-07-12

Applicant: DeguDent GmbH

Inventor： Krumbholz, Klaus

IPC: G01J3/52

CPC classification number: A61C13/082 ,  A61C19/10 ,  G01J3/462 ,  G01J3/508 ,  G01J3/52

Abstract: Die Erfindung bezieht sich auf ein Zahnfarbsystem umfassend Grund- und Mischfarben, denen Koordinaten im CIELab-Farbraum zugeordnet sind, in dem die Farben der natürlichen Zähne im Wesentlichen auf Koordinaten innerhalb eines ellipsoidförmigen Raumes (18) liegen, dem eine Längsachse (22) zugeordnet ist. Damit das Farbsystem aus einer geringen Anzahl von Grund- und Mischfarben besteht und eine optimale Farbanpassung an die den Zahnersatz umgebenden natürlichen Zähnen ermöglicht, wird vorgeschlagen, dass die Grundfarben aus ersten Grundfarben und zumindest einer Gruppe zweiter Grundfarben bestehen, dass die Koordinaten der ersten Grundfarben auf der Längsachse (22) des ellipsoidförmigen Raumes oder einer von hell nach dunkel im CIELab-Raum verlaufenden Basislinie liegen, dass die Koordinaten zumindest einer Gruppe von zweiten Grundfarben in einer die Längsachse oder Basislinie senkrecht schneidenden Ebene (52) liegen und dass die Koordinaten der Mischfarben Schnittpunkte (74,76) von ersten und zweiten Geraden sind, wobei zumindest eine erste Gerade parallel zu der Längsachse oder Basislinie verläuft und jeweilige zweite Gerade (60,62,64,66,68,70,72) eine Verbindung zwischen den Koordinaten einer der ersten Grundfarben und einer der zweiten Grundfarbe ist.

Abstract translation: 第一基色的坐标位于椭球形空间的纵轴上，或位于从空间中的光延伸到黑暗的基线上。 原色组位于垂直于纵轴或基线的平面上。 混合颜色的坐标是直线的交点，而直线与纵轴或基线平行地延伸，使得各直线连接原色。 包括用于为残留的牙齿包围的牙科假体产生牙科假体颜色的方法的独立权利要求。

公开(公告)号：EP2207472A1

公开(公告)日：2010-07-21

申请号：EP08837571.2

申请日：2008-10-01

Applicant: Ferton Holding SA

Inventor： HENNIG, Thomas

IPC: A61B5/00

CPC classification number: G01N21/6486 ,  A61B5/0088 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/024 ,  G01J3/10 ,  G01J3/4406 ,  G01J3/508 ,  G01J2003/1213 ,  G01N21/645 ,  G01N2021/6421 ,  G01N2021/6484

Abstract: The invention relates to a device for measuring fluorescent radiation emitted by biological substances, comprising a light source (18), a capturing unit (20), an evaluation unit (28) that is coupled to the capturing unit (20), at least one emission fibre (14) that is coupled to the light source (18), and at least one detection fibre (16) that is coupled to the capturing unit (20). Said emission fibre (14) guides excitation radiation to the biological substrate and the detection fibre (16) receives fluorescent radiation excited on the biological substance and guides it to the evaluation unit (28). According to the invention, the capturing unit (20) comprises a semi-conductor sensor arrangement (62) in which at least three sensors that are arranged inside a surface and that detect fluorescent radiation emitted by the biological substance in wave length areas that are separate from each other, are arranged. Data sets of at least two different reference measurements on at least two different biological substances are stored in the evaluation unit (28) that compares the measured measurement values to the stored data sets and issues a result relating to the pathological attacks of the examined biological substances and/or relating to the type of examined, biological substances.

公开(公告)号：EP2133820A3

公开(公告)日：2010-02-10

申请号：EP09167591.8

申请日：1999-10-04

Applicant: Shade Analyzing Technologies, Inc.

Inventor： Lehmann, Maryann ,  Youngs, Perry ,  Vock, Curtis, A.

IPC: G06K9/00 ,  G06K9/46 ,  A61C19/00

CPC classification number: G01J3/46 ,  A61C19/00 ,  A61C19/10 ,  G01J3/462 ,  G01J3/463 ,  G01J3/508 ,  G01N21/25 ,  G06K9/4652 ,  G06K9/6202 ,  G06K9/6255 ,  G06T7/90

Abstract: A digital camera connects to a tooth shade analyzer subsystem, e.g., a digital video processor, and a color display monitor for the electronic determination of the color of patient's teeth. Preliminarily, the camera captures series of digital color images of tooth shades corresponding to reference shade guides, and electronically compares the reference shades to an image of the patient's tooth. In a preferred embodiment the comparison is done over a set of pseudo-pixels, each corresponding to a group of pixels in an high-resolution camera. Once a match is found, it is communicated to a user of the system. In a specific embodiment the camera is equipped with a sleeve and illumination subsystems that help reduce the variations in the color of digital images due to external factors.

公开(公告)号：EP1528380A4

公开(公告)日：2009-12-09

申请号：EP03808856

申请日：2003-07-24

Applicant: OLYMPUS CORP

Inventor： KOMIYA YASUHIRO ,  WADA TORU ,  KONNO OSAMU ,  AJITO TAKEYUKI ,  NAKAMURA TOMOYUKI

IPC: A61B5/00 ,  A61B5/02 ,  A61C13/00 ,  A61C13/08 ,  G01J3/02 ,  G01J3/10 ,  G01J3/50 ,  H04N5/225 ,  H04N9/04

CPC classification number: G01J3/32 ,  A61B5/0013 ,  A61B5/0088 ,  A61B5/02 ,  A61C13/0004 ,  A61C13/082 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0224 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/463 ,  G01J3/50 ,  G01J3/501 ,  G01J3/508 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  H04N5/2256 ,  H04N9/045 ,  H04N13/0037 ,  H04N2209/043 ,  H04N2209/044

Abstract: An image processing system is used for dentistry. Upon creating a false tooth of a patient (59), a plurality of illuminating light of LEDs with different wavelengths emit light and a photographing apparatus (1A) photographs a tooth portion of the patient (59), thereby obtaining image data. The image data is sent to a dentistry filing system (2A) serving as a processing apparatus, and color reproducing data is obtained by calculation. The color reproducing data is sent to a dentistry factory (55) via a public line. Data is searched from a database (56) for calculating a ceramic compounding ratio, compound data of the ceramic false tooth is obtained, matching the color of the tooth portion of the patient (59), and the false tooth approximate to the tooth color of the patient (59) is created. The photographing apparatus has a control unit (18) which switches between a spectroscopic image capturing mode and a moving image capturing mode.