Abstract: A method of filing and reproducing a medical image comprises the steps of feeding image signals representing a medical image to an image processing apparatus and an image filing apparatus, reproducing the medical image as a visible image by feeding the image signals processed in the image processing apparatus to an image output apparatus and, on the other hand, filing the image signals on a recording medium in the image filing apparatus retrievably and transferably to the image output apparatus. Image processing information representing image processing conditions in the image processing apparatus are fed to the image filing apparatus and stored on the recording medium in conformity with the image signals which are to be processed by use of the image processing conditions.

Abstract: An apparatus is disclosed for displaying two-channel audio input signals in a three-color visual pattern. In general, the visual pattern may be formed on a viewing screen by an apparently moving spot having three color components. Phase shifting means is employed to phase shift one of the two audio input signals, and both audio input signals are subsequently processed by low pass filters to produce positioning signals in X-Y coordinates for the spot which forms the visual pattern. In addition, the two audio input signals are also mixed and separately processed by a high pass filter, a band pass filter and a low pass filter to produce frequency separated signals for controlling the intensity of each of three color components of the spot forming the visual pattern. Automatic color balance means utilizing negative feedback is employed to control the amplitude of the separate frequency-discriminated audio signals.

Abstract: A scanning apparatus for the array scanning of information upon a record medium to simultaneously develop a multiplicity of information lines. Scanning is carried out by a reciprocating shuttle traversing the width of the scanning area. The record medium to be scanned is mounted on a platen that undergoes periodic longitudinal advancement through a distance corresponding to the width of the band traced by the scanning array. The platen advances when the shuttle is undergoing its reversal. Precise incrementing of the platen is achieved by the positioning of a reference element during the active scanning segment of the shuttle and then locking the reference element in position. The platen is then quickly advanced into contact with the reference element during the short reversal of time of the shuttle. Springs are used to help reverse the direction of travel of the shuttle at each end of its reciprocating scan.

Abstract: An aplanatic image combiner. At least two image generating cathode ray tubes are provided having curved concave phosphor image generating surfaces. A set of dichroic mirrors are provided to combine images from each of the curved surfaces into a single combined image. A lens is positioned to transmit the combined image to an image magnification system. The lens has a curved surface forming an exit aperture for the image combiner. The radius of curvature of the lens is configured to be substantially the same as the radius of curvature of each of the concave image generating surfaces of the cathode ray tube. An image is generated to an image magnification system without generating any field aberration or astigmatic and chromatic aberration requiring correction in the magnification system.

Abstract: A line sensor for color reading comprises a plurality of line sensors, each having photosensors arranged one-dimensionally, for the number of the color signals to be separated arranged in parallel with each other on one and the same substrate; and a color filter for color signal separation directly disposed on the light-receiving portion of each of said line sensors. The parallel line sensors may be disposed so as to be non-coplanar, e.g., by provision of insulating layers at least on wiring sections of the first and second line sensors, the second and third line sensors being disposed on the first and second insulating layers, respectively.

Abstract: An optical filter for use in a solid state color camera containing a plurality of solid state image sensing devices having a predetermined horizontal scanning direction, the filter including a first crystal plate for separating an incident ray into an ordinary ray and extraordinary rays in a direction of 45.degree. with respect to the horizontal scanning direction of said solid state image sensing devices, a second crystal plate for separating the incident ray thereof into an ordinary ray and extraordinary rays in a direction which coincides with the horizontal scanning direction, and a third crystal plate for separating the incident ray into an ordinary ray and extraordinary ray in a direction of -45.degree. with respect to the horizontal scanning direction. The second crystal plate is located between the first and third crystal plates, and the three plates are bonded together in the form of a laminate.

Abstract: An electronic blackboard includes a writing sheet which extends between a pair of rollers, partly wound therearound, a CCD image sensor for scanning the surface of the writing sheet which is illuminated by a lamp, and a control system including a central processing unit (CPU) for controlling its overall operation. Upon power up, the writing sheet is set in its initial position and the CCD image sensor scans along a non-image line outside of a writing surface of the writing sheet. The presence or absence of any abnormality condition is determined depending on the number of black level data found in the image data read by the CCD image sensor. That is, if the non-image line is defined in a white background area, the image data read by the CCD image sensor with the writing sheet set in its initial position should not include any black level image data other than those produced by noise. Thus, if the number of black level image data is found to be significant, there must be some abnormal condition.

Abstract: A solid-state color imaging apparatus includes an array of color filters. The first and third rows of the array are constructed entirely of same-color filters. The second row of the array comprises a first set of color filters for generating a first color difference signal component modulated with a predetermined number of picture elements forming one cycle in the horizontal direction, and the fourth row comprises a second set of color filters which generates a second color difference signal component modulated with a predetermined number of picture elements forming one cycle in the horizontal direction. In one embodiment, the same-color filters of the first and third rows are transparent to red, green and blue light.

Abstract: The invention uses a multiple beam cathode ray tube to write a television type raster, or frame, with the maximum data rate and writing speed reduced by a factor equal to the number of simultaneously operating beams. To overcome excessive slope in the picture, a stepped deflection is used such that the majority of vertical deflection occurs after a particular horizontal sweep is completed and before the successive sweep begins. The scanning speed is further increased by using an optical transmission filter capable of selectively transmitting separate colors emitted by the screen of the cathode ray tube wherein a portion of the filter may be set to transmit the next color in the color sequence while the remainder of the filter is transmitting the color presently displayed.

Abstract: A completely electronic color camera for electronically recording an image of an object. The image signals from a solid-state image sensor having color filters are converted to digital form so that the digitized image signals are applied to the same number of coding compression circuits, e.g. differential pulse code modulation circuits, as the kinds of colors of the color filters per scanning line, are subjected to a color separation coding processing and are then stored directly in a memory without performing any additional processing. Error detecting and correctng circuits are provided. Error detecting and correcting data and lens setting data are added to the image data and recorded. The camera is reduced in size, is low in power consumption and requires a reduced memory capacity per frame.

Abstract: A multiple tube projection television system. At least two image generating cathode ray tubes are provided, having an image generating surface which is concave. The radius of curvature of the image generating tubes is selected to be between 1.2 and 2 times the image diagonal of each tube. Dichroic mirror means are provided to combine the images produced from each tube. A projection lens system is positioned at an optical distance from each tube which is substantially equal to the radius of curvature of the concave phosphor surface. The combination provides for an optimum amount of light to the entrance aperture of the projection lens system.

Abstract: A color-separation film is produced for one or more original pictures which require trimming by carrying out a separation process by means of a color scanner. The original pictures are adhered to a light-shielding sheet. The light-shielding sheet is provided with trimming windows through which all or portions of the original pictures are viewable. The shielding sheet and the original pictures viewable therethrough are scanned to obtain color-separated images which images are then recorded on a photosensitive sheet which is mounted on a recording cylinder. Further, a binary-coded signal is developed which indicates the regions on the light-shielding sheet which lie outside the trimming windows. The binary-coded picture signal is used for forming a mask region on the photosensitive sheet. Accordingly, a subsequent contact-printing procedure is simplified and the printing process can be carried out more reliably and accurately.

Abstract: A color image pickup device suppresses false color signals in order to provide true color reproduction. That is, the device incrementally or continuously reduces false color signals. More particularly, this device includes a color separation filter through which an optical image passes to an image pickup device such as a CCD sensor or the like. A suppression circuit that includes a low pass filter and a high brightness detector detects when the brightness of the optical image exceeds a predetermined level. A color signal forming circuit forms a plurality of color signals from the output of the image pickup device and this plurality of color signals are output by a sequencing circuit in a predetermined cycle. The output level of the sequencing circuit is adjusted in response to the output of the detector by a control circuit, and this output is modulated by a modulator.

Abstract: An image processing apparatus includes a generator for generating predetermined image data representing an image and an image reproducing device for reproducing the image. A reading device reads the image reproduced by the reproducing device and generates read data representative thereof. A converter converts the read data generated by the reading device to converted image data which is substantially equal to the predetermined image data generated by the generating device. The converting means includes a table adapted to receive the read data as address data for converting and outputting the converted image data. The converted image data may be transmitted to the reproducing device which is arranged to reproduce an image represented by either the predetermined image data or the converted image data. The image processing apparatus of the present invention may also incorporate a digitizer having a dither processing circuit for specifically processing data in accordance with a plurality of kinds of basic cells.

Abstract: In an image recording apparatus, an input video signal is digitized at a plurality of voltage levels, digitized video signals are rate-converted, and digitized still images corresponding to the respective voltage levels are sequentially displayed on a television monitor and are printed together on a film.

Abstract: An image pickup apparatus includes an image pickup device and a plurality of color filter groups associated with the device. Each of the filter groups has a different transmission characteristic. The pickup device generates an output signal representative of incident radiation. A color separating circuit separates color signals corresponding to the color filter groups from the output generated by the image pickup device. A control device adjusts the level of at least one of the signals separated by the color separation circuit and a dot-sequential signal forming circuit converts the signals, the levels of which are adjusted by the control device into a dot-sequential signal. The dot-sequential signal so formed is the result of separated color signals and benefits from less stringent frequency requirements for various switching, filtering, and gain control elements.

Abstract: An incident optical image is split by a single semi-transparent mirror into first and second optical images and directed onto first and second intersecting planes so that the images are in mirror-image relationship to each other with respect to a line of intersection between the two planes. First and second identical solid-state area imagers are located on the two planes, respectively. A pair of identical solid-state area imagers respectively include image sensors for generating charges corresponding to the optical images incident thereon. A vertically bidirectionally transferrable charge transfer device is coupled to each image sensor and a horizontally bidirectionally transferrable charge transfer device is coupled to the vertical transfer device. The vertical and horizontal charge transfer devices of both imagers are driven so that signals derived therefrom will produce identical electronic images.

Abstract: A dynamic white uniformity correcting apparatus for a three-color display for displaying a color picture in response to three primary color signals and includes a cathode ray tube which has means for emitting a plurality of electron beams and a display screen divided into a plurality of incremental areas and the display also includes deflection means for scanning the plurality of electron beams across the display screen to produce the color picture in response to three primary color signals and wherein a correction signal generating means generates at least two correction signals for each incremental area of the display screen and the correction signal generating means includes a correction signal storage means for storing the correction signals.

Abstract: A rotating-drum scanning apparatus includes a rotating drum and a feed mechanism for feeding a rectangular sheet to the drum and winding it around the drum so that one side of the sheet is inclined at an angle .theta. to the axis of the drum. In a first embodiments, a scanning head is disposed to be movable in a direction parallel to the axis of the drum and includes a plurality of scanning elements arranged along a line parallel to the axis of the drum. These elements form on the sheet scanning lines extending at right angles to said one side of the sheet as the drum and the scanning head move. The angle .theta. is given by .theta.=tan.sup.-1 .DELTA.L/L, where L is the circumference of the drum and .DELTA.L is the distance covered by the scanning head while the drum makes one revolution. Another embodiment is similar to the first embodiment except that it arranges the scanning elements along a line which is also inclined at the angle .theta.

Abstract: An image processing apparatus receives color data and includes a masking processing circuit for modifying the colors represented by the color data by processing each of the different color data received. The colors are modified according to other color data associated with each of the colors represented by the color data. The masking processing circuit includes a first memory for storing data representing each color and a second memory for storing data from the data derived after masking processing the data stored in the first memory. The color data and the other color data are used as addresses in the first and second memory. The number of bits of each color data used as an address for each respective color is larger than the number of bits for each of the other color data received at that portion of the memory.