Abstract:
PROBLEM TO BE SOLVED: To conduct highly accurate color correction so that color information also matches on different side surfaces of the same tooth such as the buccal surface and the occlusal surface.SOLUTION: A dental image processor 5 comprises: a memory 8 for storing position information of a reference region having a color correlation with standard color information, which is the color information acquired in another region of either the occlusal surface or the buccal surface, the reference region being a region on an image Gconstituting a correction target acquired for either the occlusal surface or the buccal surface of the tooth; a reference color information extraction unit 9 for extracting the reference color information, which is the color information in the reference region of the image G; a correction coefficient calculation unit 10 for calculating the correction coefficients which match the reference color information extracted by the reference color information extraction unit 9 to the standard color information; and a color information correction unit 11 for correcting the color information of the image Gby using the correction coefficients calculated by the correction coefficient calculation unit 10.
Abstract:
The invention relates to a computer readable medium that includes one or more programs for carrying out a method for restoration of a patient's tooth. The method includes the steps of generating an electronic image of a patient's tooth; providing a preliminary treatment plan for addressing the dental needs of the patient; and forwarding the electronic image and preliminary treatment plan to a dental laboratory so that the technician can evaluate the image and treatment plan and in a manner such that the technician and dentist can review and discuss the preliminary treatment plan.
Abstract:
PROBLEM TO BE SOLVED: To provide an image processing system capable of color reproduction, inspection and determination, inspecting, determining with high acurracy, having a compact and lightweight imaging part of excellent portability, and capable of controlling easily a size or the like of a photographed subject image when photographing a human body affected part. SOLUTION: This image processing system is provided with a photographing device 1M having an imaging optical system 7 for photographing a subject 142, a CCD 8 for acquiring a subject signal from the subject 142, an LED group 6X having respectively different spectral distribution characteristics, and a photographing button 14a for executing an image photographing operation, and for obtaining a plurality of subject spectroscopic images by lighting selectively the LED group 6X on while interlocked with an exposure timing of the CCD 8, and an image processing part having an image memory part for storing the obtained subject spectroscopic images and for carrying out desired image computation based on the image signal. The photographing device 1M has further a range finding sensor 141, and controls the size of the subject in the photographed image. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an image processing system that enables reproduction, inspection or decision of colors with high accuracy, and moreover, that is compact and lightweight in the imaging unit thereof, and is superior in portability. SOLUTION: The system has an LED illuminating unit 127, where each of LED groups 129 with different spectral distribution characteristics are arranged; a camera lens 122 and image sensor unit for photographing a subject; an operation switch 123 for performing an imaging operation; a connection contact to be interlocked with the LED illuminating unit 127; and a spectrum detecting unit for detecting spectra of the light from the LED illuminating unit 127. The system includes a mobile phone 121 for obtaining a plurality of subject spectral images by selectively lighting the LED groups 129, while interlocking with the exposure timing of the image sensor unit; and an image processing unit for performing image calculation from the subject spectral images and spectrum data obtained. In the system, the LED illuminating unit 127 is monted removably on the mobile phone 121. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
The inventive automatic tooth color determination system (1) is at its most basic comprising; - a light isolation apparatus (11) made of opaque material which surrounds the mouth to provide light insulation from the outside environment; - a mobile phone/tablet (13) with a camera or a dental camera (22); - a light reflecting surface (16) which prevents the light from hitting the tooth surface vertically, - a digital platform which has the processor that will perform the dental color determination operation comparatively, - a flash of mobile phone/tablet (14) with standart white color tones; - a connector sleeve (12) for connecting the mobile phone/tablet (13) with the light isolation apparatus (11).
Abstract:
The present invention relates to a light guide device (100) comprising light transfer frame (111), light guide cable (112), light directing slide (151), support means (120) and light positioning means (140) which is removably attachable to an imaging device such as a camera (10) with a lens (11) and a flash (12) to be used in dental imaging applications. Light transfer frame (111) houses light guide cable (112) so that it is aligned with flash (12) of the imaging device. Light emitted from flash (12) is transmitted to light positioning unit (141) of light positioning means (140) via optical fibers (131) encased in light guide cable (112). Distance of light positioning unit (141) from lens (11) is adjustable by light positioning adjustment unit (143). Light guide device (100) is securely and adjustably attached to camera (10) via support means (120). In some embodiments of the invention, polarizing filters (161 and 162) are placed in front of lens (11) and twin light sources (145) so that their polarizing direction is orthogonal to each other to obtain cross-polarized lighting. In this manner, the invention aims to provide a practical alternative for use in dental photography applications.
Abstract:
Disclosed is a method, a user interface and a system for use in determining shade of a patient's tooth, wherein a digital 3D representation comprising shape data and texture data for the tooth is obtained. A tooth shade value for at least one point on the tooth is determined based on the texture data of the corresponding point of the digital 3D representation and on known texture values of one or more reference tooth shade values.
Abstract:
A device (1) for dental use for discriminating the color of teeth, comprises: a cellular phone (2) with a digital camera (20) comprising a lens (21) and a light source (22) acting as flash, a case (3), a spacer (7) mounted on the case (3) in correspondence of the lens (21) and the light source (22), a first polarization filter (4) and a second polarization filter (5) disposed inside the spacer (7), respectively on said lens (21) and on said light source (22), a calibration label (8) disposed in the spacer (7), a database (100) containing a plurality of digital sample images that univocally define sample colors, and a comparison software (101 ) to compare the digital image of the tooth taken with the device (1) with said sample images of the database (100) to discriminate the color of the photographed tooth.