Abstract:
The present invention discloses a set of dental colour indicator devices and a method of selecting dental colours. Each indicator device (20) has a number of colour samples (11-19) arranged in a regular array. Each of the samples corresponds to the colour at a corresponding location in an identical array formed on one of a plurality of transverse parallel cuts (26) through an elongate substantially elipsoid body (10) which represents the possible range of dental colours when graphically represented on a colour co-ordinate system such as the CIELAB psycometric colour system or the Munsell visual colour system. The selected colour is either the colour of one of the samples or a mixture of the colour of two adjacent samples.
Abstract:
Apparatuses and methods for producing improved photographs suitable for measuring teeth whiteness with a handheld camera using a camera jig are provided. The camera jig includes a base that contacts a surface. The camera jig also includes a light shield made from a tubular structure defining an interior cavity. The camera jig further includes a slot in the tubular structure that supports the handheld camera at a predetermined distance from a target, which may be teeth of a user. The slot aligns a lens of the handheld camera with the target. Further, the light shield blocks substantially all ambient light, other than light of a light source of the handheld camera, from the target as it is photographed.
Abstract:
L'objet de l'invention est un appareil (1) de mesure de teinte dentaire comprenant un boîtier (11), une poignée (10) et une tête de mesure (20), ledit appareil étant caractérisé en ce que ladite tête de mesure (20) comprend : - un corps creux (40) s'étendant selon un axe longitudinal (46), ledit corps creux comprenant une extrémité proximale (48) et une extrémité distale coudée (49) par rapport à l'axe longitudinal (46), ladite extrémité distale (49) étant munie d'un embout amovible (26) destiné à venir en contact avec une surface d'analyse d'une dent; - au moins une source lumineuse et des moyens d'acquisition d'image solidaires au corps creux (40), ledit corps creux étant apte à transmettre la lumière de ladite source lumineuse depuis l'extrémité proximale jusqu'à l'extrémité distale; et en ce que ledit appareil comprend un ensemble d'orientation permettant de monter l'extrémité proximale (48) du corps creux dans le boîtier (11) de façon à ce que la tête de mesure (20) occupe différentes positions angulaires par rapport au boîtier (11).
Abstract:
A dental imaging and illumination device. The device has an optical interface for emitting light from the device and for receiving light into the device. The device has a light source, a camera, a beam splitter and a color reference. The color reference and the light source are optically coupled via an optical path so that the light source can illuminate the color reference. This optical path bypasses the beam splitter. The device facilitates color measuring particularly in the field of dentistry.
Abstract:
The present invention generally relates to methods and systems for (i) skin assessment based on the utilization of bioimpedance and fractional calculus and implementation of methods for skin hydration assessment based on the utilization of bioimpedance and fractional calculus and systems thereof, (ii) an Opto-Magnetic method based on RGB and gray images data as "cone - rods" principles with enhanced qualitative and quantitative parameters for analyzing water based on Opto-Magnetic properties of light-matter interaction and systems thereof, and (iii) imaging and analyzing skin based on the interaction between matter and electromagnetic radiation and implementation of an Opto-Magnetic method with enhanced qualitative and quantitative parameters for imaging and analyzing skin based on Opto-Magnetic properties of light-matter interaction and systems thereof.
Abstract:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur optischen 3D-Vermessung, wobei die Vorrichtung zwischen einem ersten Modus für die optische 3D-Vermessung mittels der chromatischen konfokalen Messmethode oder der Triangulation- Messmethode und einem zweiten Modus für die Farbmessung verstellbar ist. Im ersten Modus wird ein breitbandiger Beleuchtungsstrahl auf eine erste Ebene einer Messobjektsoberfläche fokussiert und im zweiten Modus wird der breitbandige Beleuchtungsstrahl auf eine zweite Ebene außerhalb der ersten Ebene in einem Abstand d von der Messobjektsoberfläche fokussiert.
Abstract:
An object is to represent the difference of colors of a vital tooth and a tooth sample in a highly precise manner and to compare the colors in a relatively easy manner. The invention provides a dental colorimetry apparatus including a shade-guide-information storage unit configured to store acquired image data of a tooth sample and colorimetric information of each pixel acquired on the basis of the acquired image data; a pixel extracting unit configured to acquire reference colorimetric information used as a reference when carrying out a comparison with the vital tooth, to compare the reference colorimetric information and the colorimetric information for each pixel of the tooth sample, and to extract pixels whose comparison results satisfy a predetermined condition; an image-generating unit configured to create a sample comparison image in which a third pixel group including pixels extracted by the pixel extracting unit and a fourth pixel group including pixels that are not extracted are represented by different colors; and a display device configured to display the sample comparison image created by the image-generating unit.