Abstract: Method and processor for searching for a target within video data comprising the steps of receiving a target selected from within video data. Identifying a current selection of target matches for the selected target within further video data. Ranking the current selection of target matches. Receiving a signal confirming or rejecting one or more of the ranked target matches. Identifying a further selection of target matches for the confirmed target matches from the further video data. Indicating portions of the further video data containing the further selection of target matches.

Abstract: A patient table and a control device of a pallet of the patient table are provided according to the present application to facilitate achieving the switching between manual operation and automatic operation in controlling the pallet, and to improve the operation convenience. The control device includes a through-beam photoelectric switch, a shutter and a trigger connected to the shutter, the trigger is arranged on a push-pull portion of the pallet to allow the shutter to be driven to move when a hand acts on the push-pull portion, to block a light beam of the through-beam photoelectric switch. The through-beam photoelectric switch is in signal connection with the control board of the patient table and is configured to send a signal for releasing the pallet to the control board of the patient table once the light beam of the through-beam photoelectric switch is blocked.

Abstract: A cathode HAS a cathode head in which a surface emitter is arranged that emits electrons upon application of a heating voltage. The surface emitter is fashioned as a parallel surface emitter with at least two emitter surfaces spaced apart from one another, to which at least one electrically conductive cutoff electrode is fed that is galvanically separated from the parallel surface emitter. Such a cathode has a good cutoff capability.

Abstract: An X-ray imaging detector for generating X-ray transmission image in a form of electric signal, for use in X-ray imaging apparatus which comprises the X-ray imaging detector, an X-ray generator and a fixing means for fixedly positioning an object to be examined between the X-ray generator and the X-ray imaging detector mounted thereon, whereby X-ray imaging is performed by moving the X-ray generator and the X-ray imaging detector both interposing the object fixedly positioned by the fixing means while keeping facing each other.

Abstract: In accordance with the invention, an apparatus for diagnostic radiographic imaging comprises an x-ray source for providing an exposing dose of x-rays and a first radiation receptor for detecting imagewise modulated x-rays are emitted from the x-ray source and from an imaging object interposed between the source and the first receptor; the first receptor thereby provides a first image of the object. A second radiation receptor for detecting imagewise modulated x-rays that are emitted from the first receptor is situated behind the first receptor and comprises x-ray converter means and detector means for detecting a converted x-ray image; the second receptor provides a digital second image of the object.

Abstract: An X-ray diagnostic apparatus for diagnosing an object to be examined, includes X-ray radiating means for radiating an X-ray on the object to be examined, means for detecting the X-ray passed through the object to be examined and obtaining an X-ray static image of the object to be examined, and means for adding discrimination information to the X-ray static image of the object to be examined and outputting a static image to which discrimination information is added. In addition, the X-ray diagnostic apparatus of the present invention further comprises means for recording a motion image of the object having information corresponding to the static image having to which the discrimination information has been added.

Abstract: An x-ray photographing apparatus includes a first x-ray image detecting unit having a first x-ray image detection region, a second x-ray image detecting unit arranged in tandem with the first x-ray image detecting unit and having a second x-ray image detection region, and a bed apparatus having a subject placing unit for moving a subject to be examined between the first and second x-ray image detection regions. The first x-ray image detecting unit performs x-ray film photography and fluoroscopy of the lower limbs of a subject to be examined. The second x-ray image detecting unit performs x-ray film photography of the entire region of the lower limbs of the subject. The bed apparatus serves to perform photography of a blood vessel with a contrast medium. The subject placing unit can arbitrarily perform moving and stopping operations between the first and second x-ray image detection region.

Abstract: An X-ray radiographing system is provided with a table having a spot-film device which moves synchronously with an X-ray generator along a longitudinal axis (a patient's body axis) of the table. The spot-film device comprises a fluoroscopic area and a radiographic area arranged along a transverse axis at a front portion of the table. A film holder holding an X-ray sheet film (unexposed or exposed) shuttles along a transverse rail between the fluoroscopic area and a radiographic area. A feed magazine and a take-up magazine are provided under the fluoroscopic area. Unexposed X-ray sheet film is removed by suction cups from an opening in the feed magazine, and fed to the film holder. Exposed X-ray film is returned to the take-up magazine. Both the magazines can be loaded and unloaded from the front portion of the device.

Abstract: A dual axis translation mechanism for holding and moving an object of variable dimension to a position defined by first and second axis. The mechanism includes a frame, a carriage mounted on the frame for movement with respect to the frame in the first axis, and an object holding means coupled with the carriage for holding and moving the object with respect to the carriage in the second axis. A motor selectively drives a first shaft and a drive/brake assembly provides a second shaft which, in a drive mode of the assembly is driven synchronously with the first shaft and, which in a brake mode of the assembly is held non-driven while the first shaft is being driven. First and second endless belts are mounted for rotating movement within the frame and extend in a direction parallel to the first axis.

Abstract: A mechanism for selective translation of an object along first and second axes comprises a frame, a carriage mounted on the frame for sliding movement with respect to the frame along the first axis, a holder for said object and an intermediate mounting means coupled to the holder and the carriage for mounting the holder on the carriage for sliding movement with respect to the carriage along the second axis. A motor is provided for selectively driving a first shaft and a drive/brake assembly provides a second shaft. In a drive mode of the assembly the second shaft is allowed to be driven synchronously with the first shaft and, in a brake mode of the assembly, is held non-driven while the first shaft is being driven. First and second endless belts are coupled to the first and second shafts, respectively, for receiving selective rotational movement therefrom.

Abstract: Automatic filmer capable of centering the cassette with respect to an x-ray window and measuring the width and length thereof. Oppositely disposed channels are used to center the cassette about a first center line and measure the width thereof. A gripper assembly is used to draw the cassette into the housing and determine the length of the cassette. A carriage assembly moves the cassette within the housing so as to expose the cassette to x-rays within the x-ray window.

Abstract: A system and method is disclosed for minimizing residual vibration of a radiographic system due to rapid movement of a radiographic film cassette between a park and expose position. The cassette is moved by a servo system including a servo motor which is responsive to a voltage input waveform to drive the cassette. A waveform is chosen for the voltage input such that no inpulse derivatives appear until the waveform has been diferentiated at least three times. The primary natural resonant frequency of the system is determined and noted. The duration of the selected input waveform is adjusted such that the frequency spectrum of the adjusted input waveform defines a relative null which approximately coincides with the primary resonant frequency. The amplitude of the voltage input waveform is then further adjusted as a function of the distance to be traveled by the cassette between the park and expose positions.

Abstract: A spot film device suitable for use with the radiographic system and having a device for carrying and oscillating a grid which serves to absorb X-rays scattered from an object to be radiographed. Rotation force generated by a motor is used not only to move the grid between radiographic and parking positions but also to oscillate the grid. This enables the grid carrier system to be made comparatively simple in construction. In addition, the grid is oscillated over a certain range by the rotation force transmitted from the motor, so that comparatively high reliability can be guaranteed in oscillating the grid.

Abstract: A plain film platform for projection screen apparatus for X-ray apparatus has a platform member, a first fixed guiding strip for a film extending along one vertical side, a second fixed guiding strip extending along a lower side near the opposite vertical side over a small part of the platform member, and a third movable guiding strip extending between the first and second guiding strips and displaceable parallel to the lower second guiding strip.

Abstract: A compact, lightweight, portable, versatile and modular field x-ray system is disclosed. A base member is provided and supports an x-ray table. Two vertical masts are also coupled to the base, for movement alongside the table in a direction parallel to its longitudinal dimension. The masts move independently of one another but can also be linked together for movement in unison. A tube head is attached to one mast by articulated structure, including a series of offset arms, which affords the tube head 6 degrees of freedom of movement, both above and below the x-ray table. A spot film device is movably coupled to the second mast. The second mast and spot film device are manually removable from the remainder of the system for operation in radiographic only mode.

Abstract: An X-ray table having a surface disposed in a plane defined by longitudinal and transverse axes and a column extending perpendicularly to such axes. The column includes a plurality of vertical tracks. A carriage is provided supporting a spot film device projecting over the table surface. The carriage comprises a plurality of bearing assemblies, corresponding to the plurality of tracks, for slidably mounting the carriage on the plurality of tracks of the column. Each bearing assembly comprises: a bearing plate mounted about a pivot point to a surface of the carriage; and, a plurality of opposing bearings rotatably mounted to the bearing plate and arranged to engage the corresponding one of the plurality of tracks on the column. Application of lateral force to the bearing plate of a first one of the bearing assemblies pivots the carriage about the pivot point of that bearing plate.

Abstract: A main carriage has four wheels each of which is supported by a corresponding guide rail. The main carriage is reciprocated between a standby position and a photographing position along the guide rails through the wheels. The wheels engaged with the guide rails at the two sides of the apparatus housing are rotatably mounted at the main carriage. The wheel engaged with the edge of the main carriage at the side of a film convey mechanism is mounted on the main carriage to be movable along its moving direction (X direction). A guide plate is fixed on a main body of the main carriage, and a guide hole is formed in the guide rail to extend along the X direction. A pair of supports are engaged in the guide hole, and a support plate is fixed to the supports. A wheel is rotatably mounted on an end of the support plate. The support plate is biased by a tension spring in the retracting direction of the main carriage.

Abstract: The invention relates to diaphragm means arranged close to the film in an X-ray spot film device. The diaphragm means comprises a first diaphragm with several rectangular aperture sections. The sections are displaced in the horizontal direction and have different vertical dimensions. A second diaphragm assembly has vertically extending diaphragm edges. By moving the first diaphragm to different positions in the radiation path, the aperture can be adapted to exposure formats of different vertical dimensions.

Abstract: The invention provides a retractable cassette holder for a combined X ray and radiographic examination apparatus. This cassette holder forms a mobile assembly comprising means for forming a recess with variable dimensions in the middle thereof and means for causing the barrel of a luminance amplifier to slide within this recess.

Abstract: The invention relates to an X-ray spot-film device comprising two sliding-fixtures. The sliding-fixtures serve inter alia, for the measurement of a film cassette. The measurement of the dimensions of the cassette is performed by means of a single strap which is coupled to the sliding fixtures. The effect of the cassette height on a measurable dimension of the strap differs from the effect of the cassette width. Consequently, the measurement also determines whether the cassette has been inserted upright or sideways.

Abstract: An exemplary embodiment comprises a spot film device, a transport mechanism for the transport of an image layer carrier from a ready position into an exposure position and back, and a speed control for the drive motor. A certain time interval which is essentially caused by the transport operations always lies between triggering an X-ray exposure and the actual exposure of the image layer. In order to facilitate release of the X-ray exposure at the proper point in time, the disclosure provides that the overall transport time of the image layer carrier from the ready position into the exposure position is kept constant independently of the mass to be transported. Additionally, the transport time can also be kept constant independently of the different length of the transport path given sequencing of a sub-division program. An inventive X-ray examination device is particularly suited for employment in X-ray diagnostics.

Abstract: In an exemplary embodiment displaceable clamping jaws mount x-ray film cassettes of varying format for movement into the exposure position. In the case of such x-ray cassette changers it is necessary that the width-definition of the cone of rays corresponds to the dimensions of the inserted x-ray film cassette. The film support, in the case of fluoroscopy, should be capable of being removed from the examination apparatus without difficulties. For this purpose, the disclosure provides that the film support and the clamping jaws are coupled with transmitters which assume positions with respect to a displacement direction of the film support in dependence on the clamping positions of the respective pairs of clamping jaws. Associated with the transmitters are receivers which, together with an actual value transmitter responsive to movement of the film support, are connected to a measured value processing arrangement.

Abstract: A space-saving selector is provided for equipping radiological apparatus.The selector of the invention equipping a radiological examination table is operational for radiography in all the positions which it occupies in the table, including the endmost positions.Such a selector may equip any radiological apparatus comprising a radiographic film capable of being alternately sensitized and protected.