摘要:
A spectral image photographing section photographs the image of an object to be photographed as spectrum information in units of pixels so as to mutually record and reproduce a faithful image between two points. A photographing light spectrum detecting section detects the spectrum distribution of illumination light at a photographing point. A reproduction environment light spectrum detecting section detects the spectrum distribution of illumination light at a reproduction point. A spectral reflectance distribution calculating section eliminates the influence of the spectrum distribution of illumination light from the spectrum information photographed by the spectral image photographing section, and calculates the spectral reflectance distribution of the object. A spectrum converting section calculates, on the basis of the reproduction environment light spectrum detected by the reproduction environment light spectrum detecting section and the spectral reflection distribution calculated by the spectral reflectance distribution calculating section, a spectrum distribution obtained when the image of the object is photographed under illumination light substantially identical to that at the reproduction point. A vector imaging section converts the spectrum distribution of each pixel converted by the spectrum converting section into three-dimensional color.
摘要:
A color image processing apparatus reproduces color data of a subject at higher accuracy by estimating the spectral reflectance of the subject from the color chip basis function vn (λ) which can expand the spectral reflectances of all color chips of the reference chart and the expansion coefficients B of the color chips. The color image processing apparatus uses an image processing device to which a subject shooting signal Q shot by the color image input device and a reference chart shooting signal G taken from a plurality of color chips each having a spectral reflectance, is known.
摘要:
A color image processing apparatus for reproduces color data of a subject at higher accuracy by estimating the spectral reflectance of the subject from the color chip basis function vn (&lgr;) which can expand the spectral reflectances of all color chips of the reference chart and the expansion coefficients B of the color chips. The color image processing aparatus uses an image processing device to which a subject shooting signal Q shot by the color image input device and a reference chart shooting signal G taken from a plurality of color chips each having a spectral reflectance is known.
摘要:
A computerized tomography system including an X-ray source for emitting X-rays in a cone-beam shape, a two-dimensional X-ray image acquirer which is arranged so as to face the X-ray source and acquires an image of an object by using the X-rays; and rotator for rotating the X-ray source and the two-dimensional x-ray image acquirer around the object, wherein a three-dimensional reconstructed image is formed from the projection images acquired by the two-dimensional X-ray image acquirer while rotating the rotator. An iterative reconstruction calculator for forming the three-dimensional reconstructed image from the projection images is provided. The three-dimensional reconstructed image without artifacts can be acquired from a small amount of projection data.
摘要:
An information retrieval system allowing the user to build a database or to retrieve data therefrom based on vague retrieval-designating data without becoming aware of the database structure. The system comprises a neural network, a memory, an interface part and a CRT. The neural network stores data designating electronic still pictures contained in the memory. When data for designating retrieval are input, the interface part groups the data into such categories as the place where the desired picture was taken and the date on which it was taken, and supplies the neural network with the categorized input data. In turn, the neural network outputs by association the data corresponding to the input data. Given the data from the network, the memory outputs the relevant electronic still picture to the CRT for display.
摘要:
A display apparatus includes a color image projection unit and a screen. The color image projection unit includes a converter which receives image signals of three primary colors, and converts the received image signals of three primary colors into image signals of four or more primary colors, and a color image projector which includes a plurality of image projection devices having respective primary colors, and which receives the image signals of four or more primary colors, and projects the received image signals of four or more primary colors onto the screen. The color image projector is capable of physically adjusting positions of the image signals of four or more primary colors, which are projected onto the screen such that the positions of the image signals are coincident with each other.
摘要:
The present invention provides a method and apparatus for producing a hologram from a series of two-dimensional images horizontally different in line of sight from each other. The holographic apparatus employs original images produced by photographing an object from different directions, an object optical system which makes a light be incident upon original image to project an object beam onto photo-sensitive material, and a reference optical system which projects a reference beam of a same wavelength as the object beam toward the photo-sensitive material. The horizontal component of the object beam can be converged at a rear point i.e., a point of view at image reproduction, relatively distant from the photo-sensitive material on which a hologram is produced. When the hologram is reconstructed, a beam having the same wavelength as when recorded is converged at the rear point of view, so that the reconstructed image can be viewed in a same color free from any color shading.
摘要:
A color reproduction system includes a color image display unit capable of displaying a color image of four or more primary colors, and a color converting unit for converting input three-primary color signals into color image signals of respective primary colors of the color image display unit. The color converting unit includes an area deciding section that decides a color conversion area to which the input three-primary color signals belong in a three-dimensional color space, and a color image signal calculating section that converts the input three-primary color signals into color image signals of respective primary colors based on color conversion parameters corresponding to a color conversion area decided by the area deciding section.
摘要:
An image processing apparatus comprises a CPU, an information input unit, a main storage made up of a RAM, an image input interface, a display interface, and a ROM. These components are mutually connected on a bus. The CPU includes an image processor which operates according to programs stored in the ROM. The image processor comprises a corresponding point detector for detecting corresponding points in multiple images, an image matching unit for matching at least two images according to the output result of the corresponding point detector, and an image synthesizer for synthesizing at least part of at least one image portion matched by said image matching unit with at least part of image information of other images to form a single image. The information input unit is a keyboard for entering the type of an electronic endoscope and other data. The image input interface is connected to image memories and receives image data from the memories.
摘要:
An intelligence information processing system is composed of an associative memory and a serial processing-type computer. Input pattern information is associated with the associative memory, and pattern recognition based on the computer evaluates an associative output. In accordance with this evaluation, an associative and restrictive condition is repeatedly added to the energy function of a neural network constituting the associative memory, thereby converging the associative output on a stable state of the energy. The converged associative output is verified with intelligence information stored in a computer memory. The associative and restrictive condition is again repeatedly added to the energy function in accordance with the verification so as to produce an output from the system.