Abstract: A mixing ratio database stores information regarding a mixing ratio of plural materials for producing a color corresponding different color chart IDs. A plurality of pieces of color chart spectral information under determination illumination light are calculated using a plurality of pieces of spectral information of spectral reflection factors contained in a color chart and spectral information of the determination illumination light which is information of illumination light used for color chart determination. One of the calculated plural pieces of color chart spectral information which most closely matches spectral information of a subject is determined. A color chart ID which identifies the determined piece of color chart spectral information is output, and information of a mixing amount of each of the plurality of materials for the output color chart ID is also output based on the information stored in the mixing ratio database.

Abstract: The invention provides a multiband image pickup method and device with good color reproducibility, which is capable of imaging a subject with a number of imaging bands of not less than 4 colors and obtain a color image of not less than 3 colors without lowering spatial resolution. A first imaging of a subject image is performed by a single-plate imaging device having a color filter composed of 5 colors of R, O, G, C and B. A control unit shifts the imaging element by a shift drive unit so that each light having formed an image on the each filter of R, B and G of the color filters forms an image on a position of the each filter of O, C and G of the color filters and, thereafter a second imaging is performed. A image processing unit generates 2 3-band Bayer images based on captured images obtained by the first imaging and the second imaging, and generates a multiband image of not less than 3 colors from them.

Abstract: A multispectral image capturing apparatus has different spectral sensitivity characteristics of at least four bands. Three primary bands of the at least four bands have spectral sensitivity characteristics of standard RGB. At least one auxiliary band of the rest of the at least four bands excluding the three primary bands has a spectral sensitivity characteristic of a narrower bandwidth than bandwidths of the RGB.

Abstract: An image processing system includes a photographing apparatus and a processing apparatus. The photographing apparatus includes LEDs for emitting light with characteristics of spectroscopic distributions varied in a visible light area, an image pick-up device unit which picks-up a subject image that is illuminated by the LEDs and is formed by an image pick-up optical system and which outputs an image signal, and a control unit. The control unit sequentially lights-on the LEDs upon an instruction for photographing a subject spectroscopic image being input from an operating switch, picks-up the image, and thus controls the operation for capturing subject spectroscopic images. The processing apparatus includes a calculating device which performs a desired image calculation based on the image signal.

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.

Abstract: A multispectral image capturing apparatus has different spectral sensitivity characteristics of at least four bands. Three primary bands of the at least four bands have spectral sensitivity characteristics of standard RGB. At least one auxiliary band of the rest of the at least four bands excluding the three primary bands has a spectral sensitivity characteristic of a narrower bandwidth than bandwidths of the RGB.

Abstract: An image processing system includes a photographing apparatus and a processing apparatus. The photographing apparatus includes LEDs for emitting light with characteristics of spectroscopic distributions varied in a visible light area, an image pick-up device unit which picks-up a subject image that is illuminated by the LEDs and is formed by an image pick-up optical system and which outputs an image signal, and a control unit. The control unit sequentially lights-on the LEDs upon an instruction for photographing a subject spectroscopic image being input from an operating switch, picks-up the image, and thus controls the operation for capturing subject spectroscopic images. The processing apparatus includes a calculating device which performs a desired image calculation based on the image signal.

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 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 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 via a public switched network. Therefore, a repair material compound ratio calculation database 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.

Abstract: A color chart processing apparatus includes a spectrum calculating unit for receiving information regarding a spectral reflection factor of each color contained in a predetermined color chart and information regarding determination illumination light, and determining a spectrum of the color contained in the predetermined color chart under the determination illumination light by calculating the received information, and a determination information output unit for receiving a color signal of a subject, determining which color of the predetermined color chart closest matches the color signal of the subject by comparing the spectrum of each color determined by the spectrum calculating unit with the color signal of the subject, and outputting information identifying the resulting determination color.

Abstract: A photographing system for photographing a subject includes a color information detecting section for detecting color information of the subject, a color image capturing section for capturing a color image of the subject, and a color correcting section for performing color correction of a color image captured by the color image capturing section from corresponding position information of the color information detecting section and the color image capturing section, so as to enable highly accurate color correction.

Abstract: A fluid filled type vibration damping device including: an obstructing rubber elastic plate disposed so as to obstruct a communication aperture that connects a pressure receiving chamber and an equilibrium chamber; contact retaining portions arranged on an outer peripheral edge of the rubber plate and held in contact against a partition member; an elastic deformation zone arranged circumferentially between the contact retaining portions of the rubber plate so as to undergo elastic deformation on a basis of pressure differential between the pressure receiving chamber and the equilibrium chamber to be spaced away from the partition member to cause the aperture to open up; and a non-linearizing member provided such that the elastic characteristics of the elastic deformation zone become more rigid in a non-linear manner in association with increase in an amount of its deformation.

Abstract: An image processing system includes a photographing apparatus (1) and a processing apparatus (2). The photographing apparatus (1) includes six LEDs (6a to 6f) for emitting light with characteristics of spectroscopic distributions varied in a visible light area, a monochrome-type CCD (8) which picks-up a subject image that is illuminated by the LEDs (6a to 6f) and is formed by an image pick-up optical system (7) and which outputs an image signal, and a CPU (18) which sequentially lights-on the LEDs (6a to 6f) upon an instruction for photographing a subject spectroscopic image being input from an operating switch (14), picks-up the image by the CCD (8), and thus controls the operation for capturing 6-primary-color subject spectroscopic images.

Abstract: A multiband camera control apparatus comprises a multiband camera section configured to be capable of capturing a plurality of color bands, a computer configured to control the multiband camera section, a user interface configured to transmit instruction information for the control from the user to the computer, and parameters configured to control the corresponding band in each of the plurality of bands. The user interface includes a switching instruction section configured to switch between the plurality of bands. The computer is configured to control the multiband camera section by using the parameter corresponding to the band selected according to the instruction to switch between the plurality of bands from the switching instruction section.

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.

Abstract: A color chart processing apparatus includes a spectrum calculating unit for receiving information regarding a spectral reflection factor of each color contained in a predetermined color chart and information regarding determination illumination light, and determining a spectrum of the color contained in the predetermined color chart under the determination illumination light by calculating the received information, and a determination information output unit for receiving a color signal of a subject, determining which color of the predetermined color chart closest matches the color signal of the subject by comparing the spectrum of each color determined by the spectrum calculating unit with the color signal of the subject, and outputting information identifying the resulting determination color.

Abstract: A multispectral image processing device of the present invention comprising: a base image conversion unit 6, which expands an input multiband image of a subject based on a base vector to convert it into a base image; a base vector calculation unit 2, which calculates the base vector; and an output unit 7, which outputs a multispectral image based on the base image converted in the base image conversion unit 6 is characterized in that the base vector calculation unit 2 calculates a base vector for 3 primary colors obtained by the product of a predetermined rendering illumination spectrum and a color matching function, and an orthogonal base vector, which is orthogonal to the base vector for 3 primary colors and based on statistical information on the spectral reflectance of the subject as the base vectors. Thereby, a multispectral image is converted into image data highly compatible with an existing 3-band system.

Abstract: An image processing system which 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 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 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 via a public switched network. A repair material compound ratio calculation database is searched and compound data for a material that matches the hue of the patient's teeth is retrieved, so that a crown repair or denture or the like that very closely matches the color of the patient's teeth can be produced.

Abstract: A multi-spectral camera is provided which includes an image pickup optical system which forms an image of a subject. A wavelength selecting device receives light beams from the image pickup optical system and outputs a light beam having a selected wavelength. A wavelength switching device selectively switches the selected wavelength of the wavelength selecting device. An image pickup element receives the light beam output from the wavelength selecting device and outputs image data. A spectroscope receives the light beams from the image pickup optical system and outputs spectral data. And a subject characteristic calculating unit calculates a spectral data characteristic of the subject from the spectral data output from the spectroscope.

Abstract: A multispectral image capturing apparatus has different spectral sensitivity characteristics of at least four bands. Three primary bands of the at least four bands have spectral sensitivity characteristics of standard RGB. At least one auxiliary band of the rest of the at least four bands excluding the three primary bands has a spectral sensitivity characteristic of a narrower bandwidth than bandwidths of the RGB.

Abstract: An imaging device 11, in which photoelectric conversion is performed by an imaging element 16 for acquiring an image of a subject formed by the photographing lens 12, comprising a light source estimation unit 31 for generating estimated light source information for estimating a light source of the subject, on the basis of an image signal acquired by the imaging device 16; an light source sensor 18 for detecting a spectrum of the light source; a light source sensor information calculation unit 32 for generating a light source sensor information including the spectrum based on the spectrum; a color conversion parameter calculation unit 33 for calculating the color conversion parameters of the image signal based on the estimated light source information and the light source sensor information; and, a color conversion processing unit 34 for performing color conversion of the image signal by using the color conversion parameters.