Abstract: An image forming apparatus for recording an image on a recording medium according to an inputted diagnostic image signal, including: a recording medium loading section capable of loading plural types of recording media; an exposing device for forming latent images by exposing with predetermined plural test exposure values; a developing device to form developed images on the recording medium; a density measuring device for measuring densities of the developed images; a memory device for storing predetermined density values correlated to the predetermined plural test exposure values; a selecting device for selecting a predetermined number of images among the developed images; and a calibration section for creating LUT that determines a relationship between exposure values and input image signals, based on measured densities of the selected predetermined number of images and stored predetermined density values correlated to the test exposure values.

Abstract: There is described a medical-image recording apparatus that can output medical images having a plurality of different pixel sizes without deterioration of image quality. The apparatus includes an image recording section to record the medical image onto a recording medium with a writing pitch selected from a plurality of writing pitches P1 - - - Pn (P1<P2< - - - <Pn, n?2); an interpolating-magnification-factor determining section to determine an interpolating magnification factor, corresponding to a reading pitch employed for reading the medical image and each of the plurality of writing pitches P1 - - - Pn; an image interpolating section to apply an image interpolation processing to the medical image, based on the interpolating magnification factor; and a writing-pitch selecting section to select an appropriate writing pitch out of the plurality of writing pitches P1 - - - Pn. The appropriate writing pitch fulfills a specific relationship.

Abstract: An information navigation apparatus monitors a user's preferential tendencies among huge amounts of digital content using as objective a criterion as possible, and displays content information that would facilitate the user's content selection based on the monitored data. The apparatus is capable of accommodating the user's modification of his or her preferential tendencies on the spot. The information navigation apparatus comprises a content selection history memory unit for storing a user's content selection history, a content information database for storing content information about digital content, a preference analysis unit for analyzing the user's preferences based on said content information and said user's content selection history, and display means for displaying the result of analysis of the user's preferences by said preference analysis unit.

Abstract: A medical image system including: an image data input section for inputting image data including medical image data of a radiographed object and supplementary information; a plurality of outputting sections for outputting a medical image on the basis of the medical image data; a setting section for setting a setting density range or a setting brightness range of the medical image to be outputted on the basis of the inputted supplementary information; an information obtaining section for obtaining density information including a output density range or brightness information including a output brightness range which each of the outputting sections can output; a selecting section for selecting at least one of the outputting sections which can output the medical image data; and a transmitting section for transmitting the medical image data with the supplementary information to the selected outputting sections.

Abstract: There is described an inkjet recording medium that can display image suitable for observation without employing wet development processing. The recording medium is substantially transparent and includes a supporting base shaped in a sheet; and an ink-absorbing layer that is formed on at least one of both sides of the supporting base, and that absorbs ink particles so as to form the image. The diffuse transmission density of a first area, being a part of the recording medium on which no image is formed, is in a range of 0.45-0.15, and a Q-factor of the first area is in a range of 1.50-1.00; and the recording medium is so constituted that a Q-factor of a second area, being a part of the recording medium on which an image is formed so as to adjust a diffuse transmission density at 1.00, is in a range of 1.20-1.00.

Abstract: In an ink-jet recording apparatus, when an intensity of the energy of electromagnetic waves of a predetermined region is E and an optical density of the image recorded on a recording medium based on an image signal is D, a controller conducts the image recording such that a characteristic curve representing a change of the optical density D for a logarithm of the energy intensity E becomes a monotone increasing function or a monotone decreasing function. When &ggr;1, &ggr;2 and &ggr;3 are defined on the characteristic curve such that an inclination of a line connecting points corresponding to E1 and E2 is &ggr;1, an inclination of a line connecting points corresponding to E3 and E4 is &ggr;2, and an inclination of a line connecting points corresponding to E5 and E6 is &ggr;3, the characteristic curve is determined so as to satisfy the following formulas: |&ggr;1|<|&ggr;2| and |&ggr;3|<|&ggr;2|.

Abstract: There is described a medical image recording system for recording an image on a reflex-type recording medium based on image information, and a medical image recording system for recording with ink-jet the medical image information obtained through an input device, such as a medical photographing device. The system includes an image-processing section to apply a dynamic-range compression processing to original image signals representing the medical image and inputted therein, in order to generate output image signals, and an image-forming section to form a compressed medical image on the reflex-type recording medium, based on the output image signals generated by the image-processing section. The dynamic-range compression processing is to compress a dynamic-range of density variation to be expressed on the reflex-type recording medium.

Abstract: There is described an image processing method and an image converting apparatus for performing the image processing for recording the medical image information. The apparatus includes an image converting section to convert the image in respect to the original image signals; an image feature extracting section to extract image features for every pixel included in the plurality of pixels in respect to the original image signals; a sharpness information obtaining section to obtain sharpness information from the image converting section; a sharpness calculating section to calculate correlation between the image features and the sharpness information; and a frequency processing section to compensate for a sharpness level of the image, based on the correlation calculated by the sharpness calculating section, so as to reduce a variation of the sharpness level before and after the image converting section converts the image in respect to the original image signals.

Abstract: An image recording method for visualizing an image signal of medical diagnosis, which has the steps of: inputting the image signal of medical diagnosis; processing the image signal of medical diagnosis to get correct sharpness in visualized image by applying a frequency enhancement processing; and visualizing the image signal of medical diagnosis by conducting an ink-jetting process to form an image on a recording medium based on a processed image signal, wherein the ink-jetting process has a characteristic such that sharpness of a visualized image varies in relation with a density of the visualized image; wherein degree of enhancement in the frequency enhancement processing is determined according to a density of visualized image.

Abstract: A housing for accommodating a radiation detecting member, has a first plate member to which radiation is incident from an outside of the housing; a second plate member arranged opposite to the first plate member; a radiation detecting member provided between the first plate member and the second plate member and having a radiation receiving surface to detect the radiation having passed through the first plate member; and a scattering radiation shielding member arranged at a radiation receiving surface side of the radiation detecting member and to eliminate scattering radiation from the radiation before the radiation is detected by the radiation receiving surface.

Abstract: There is described a medical image recording apparatus, which records a medical image on a recording medium based on image data. The apparatus includes an ink-jetting head to emit ink particles onto the recording medium and a controlling section to control the ink-jetting head, so that a total amount of the ink particles per unit area, emitted by the ink-jetting head and adhered onto the recording medium, is maintained at substantially a constant value even if density of a solid-tone image area varies within density range D. With respect to at least one of combinations of values k1, k2 selected under conditions of 0≦k1<1, 0<k2<1.0, and k1<k2, the density range D fulfils the equation of Dmin+k1(Dmax−Dmin)≦D≦Dmin+k2(Dmax−Dmin), where, Dmax is a recordable maximum-density, and Dmin is a recordable minimum-density.

Abstract: A method of recording a transmission image composed of dots on a recording medium having the steps of; moving a recording medium in a sub-scanning direction, and moving a recording head relatively with respect to the recording medium in a main scanning direction which is crossing the sub-scanning direction, wherein a diameter D of a dot recorded on said recording medium falls within a range expressed by 1.

Abstract: There is described a radiation image reading apparatus, which includes a semiconductor detector for converting radiation photons penetrated through a subject into electric signals to generate a first radiation image information and a processor for processing the first radiation image information, so that a modulation transfer function in a low density region is not higher than a modulation transfer function in a high density region, in order to generate a second radiation image information. The abovementioned semiconductor detector includes a substrate, a plurality of electrodes, capacitors, switching elements, a photoconductive layer and a surface electrode, which are fabricated on the substrate.

Abstract: A radiation image reading apparatus is provided which includes a semiconductor detector for converting radiation photons penetrated through a subject into electric signals to generate first radiation image information, and a processor for processing the first radiation image information. The processor processes the first radiation image information so that a modulation transfer function in a low density region is not higher than a modulation transfer function in a high density region, in order to generate second radiation image information. The semiconductor detector includes a substrate, a plurality of electrodes, capacitors, switching elements, a photoconductive layer and a surface electrode, which are fabricated on the substrate.

Abstract: A radiation image reading system, comprises a plurality of reading apparatus to read a radiation image and to produce image data; and an information transmitting apparatus to transmit information regarding a patient to at least a reading apparatus of the plurality of reading apparatus; wherein when the information regarding the patient transmitted by the information transmitting apparatus is canceled, the information regarding the patient is transmitted by the information transmitting apparatus to another reading apparatus other than the reading apparatus to which the information regarding the patient was firstly transmitted.

Abstract: A broadband cholesteric polariser includes at least one pair of adjacent layers. The at least one pair includes a cholesteric layer and a compensating layer. The compensating layer has a refractive index perpendicular to the compensating layer greater than a refractive index oriented within the compensating layer.

Abstract: A method of reading a radiographic image on a stimulable phosphor sheet includes a step of obtaining correction data in which a spatial frequency processing is conducted so as to reduce a predetermined spatial frequency component of an image information which is irradiated with radiation without placing a subject. The predetermined spatial frequency component corresponds to an irregularity with poor reproducibility in terms of its position on the image information. The correction data is made so as to eliminate an irregularity which is reproducible of its position on the image information.

Abstract: The present invention discloses a sound image localization apparatus for localizing a sound image at an arbitrary location in three-dimensional space by adding an attenuation in distance to a digital filter in order to reduce an operation time of convolution and approximating the head related transfer function in a three-dimensional space thereby to control the localization in real time. The sound image localization control apparatus comprises a location sensor for three-dimensional measuring of the direction and location of a listener's head, a microprocessor for correcting sound pressure attenuation in proportion to the distance between a sound source and the head relative to a digital filter that approximates the head related transfer function consistent with the direction of the head, and a convolution processor for convolving the corrected digital filter with the monaural sound source data.

Abstract: A method for processing a radiographic image to obtain a processed image signal Sproc based on an original image signal Sorg. The method including the steps of: obtaining the original image signal Sorg representing the radiographic image based on radiographic image information transmitted through an object; obtaining an unsharp mask signal Sus corresponding to the original image signal Sorg; and conducting an operation presented by the formula: Sproc=A(Sorg)+B(Sus). In the formula, A(Sorg) is the function which does not include the unsharp mask signal Sus, B(Sus) is the function which does not include the original image signal Sorg.

Abstract: A method of reproducing a radiographic image of a subject includes processing radiographic image signals which indicates a signal level corresponding to an amount of radioactive rays transmitted through each portion of the subject. The method compresses a signal level range of a part of the low frequency region of the radiographic image signals and expands a signal level range of another part of the low frequency region of the radiographic image signals, thereby obtaining image signals that are usable to reproduce the radiographic image.