Abstract: A sensor generates signals representing whether a computer game headset is being worn properly so that the wearer may be advised. The sensor may be a pressure sensor or motion sensor or stretch sensor on the headset, or it may be a camera that images the wearer and uses image recognition to determine if the headset is on correctly.

Abstract: Systems and methods are provided for determining an acceleration at a location of interest within one of a user's head and neck. At least one of linear acceleration data, angular acceleration data, angular velocity data, and orientation data is produced using at least one sensing device substantially rigidly attached to an ambient-accessible surface of the user's head. The location of interest is represented relative to a position of the at least one sensing device as a time-varying function. An acceleration at the location of interest is calculated as a function of the data produced at the sensing device and the time-varying function representing the location of interest. The calculated acceleration at the location of interest is provided to at least one of the user and an observer in a human-perceptible form.

Abstract: Provided is an apparatus and method for automatically recognizing an object by using a low-speed camera in a dual photographing mode, in which the apparatus includes an image acquirer and an image information analyzer. In the present disclosure, without using a separate motion sensor a movement state of a specific object during sports activities may be automatically recognized by using a successive photographing function of a low-speed camera in a dual photographing mode. Further, once an object starts moving, high-speed images in a multiple exposure mode may be automatically captured by using a high-speed photographing function of the low-speed camera in a dual photographing mode without using an expensive high-speed camera, and based on the captured images, movement information, including a movement speed and direction of the sports ball, the force and axis of rotation of the ball, and the like, is automatically analyzed to generate object movement information.

Abstract: Simultaneous movies of plural portions of a scene are acquired and shown, using one imager with electrooptical directing device to acquire, stepwise, an interleaved (e. g. alternating) sequence of subscene images. Apparatus is ideally in a vehicle: airborne or unmanned, or both. The invention records and transmits (via one data link, with no needed parallel path) the sequence as one image series; best sorts the received sequence into noninterleaved sequences, a separate sequence for each subscene; and shows these as movies. Alternatively, scene portions form a mosaic. Including gyro operation and pointing, the device best gets a new image roughly each 5 to 40 msec or less; or excluding gyros and pointing, 5 to 40 msec by FSM, 1 to 5 by MEMS, 1 to 5 (or 10) by LC, 1 by 2-axis nongimbal scanner and 0.1 to 0.2 by digigimbal. Subscene direction and focal changes best synchronize with frame reception. FSMs best have refractory bearings and electromagnetic pointing.

Abstract: A device for simulating fire effects in military or civilian combat training. The device includes a light source configured to produce light beams and a light source control adapted to control a light lobe formed by the light beams from the light source. The light source control includes a two-dimensional array of elements electronically controllable to assume a selected state among at least a first state of letting through light incident thereupon in a main direction of the light lobe or a second state of not letting through the light incident thereupon in the main direction, and a unit adapted to control the elements for designing the spatial propagation of the light lobe.

Abstract: A system and method of detecting and thwarting the use of unauthorized imaging systems at theatrical performances. A method includes determining, using a computing device and stored emission signatures of a plurality of different imaging devices, whether an emission is indicative of a presence of an imaging device that has transmitted a content signal and in response to determining that the emission is indicative of the presence of the imaging device that has transmitted the content signal, and initiating, using the computing device, transmission of a thwarting signal from a signal generator to thwart the imaging device.

Abstract: In a method and medical examination device for post-editing of at least one film clip created within an examination with the imaging medical examination device, at least one associated data item of at least one film clip is created. The data item designates the film shot and contains at least one suitable information item for the purpose of determining a specific sub-segment of the film clip.

Abstract: A system and method of detecting and thwarting the use of unauthorized imaging systems at theatrical performances. Sensors are deployed at a theatrical event to detect a focusing signal and/or the RF signal of an unauthorized imaging device. De-focusing signals are used to disrupt the auto focus system of imaging devices that do not use IR focusing systems. A thwarting signal comprising invisible light frequencies may be combined to produce a thwarting signal that is received by the CCD of an imaging device as white light thereby rendering the recorded image unusable. Emission signatures of imaging devices are stored in a datastore and distributed to users of thwarting systems via a network. Emission signatures are associated with thwarting signals to allow detection and thwarting systems to respond quickly to the use of an unauthorized imaging device.

Abstract: An object of the present invention is to provide a description method for efficiently representing contents of motion picture with a small data volume. The organization of the present invention (1) represents a trajectory of how each object has moved over time by using reference plane representing position information of each object, (2) sets a description unit based on a type of action of each object by using changes in shape of each object, (3) has actions of each object represented as each behavioral section, and (4) comprises a description facility capable of reading and interpreting definition of an object dependent on video contents, definition of classes of actions, and definition of interpretation of a scene by interaction of plural objects.

Abstract: An addition image generation module 10 sequentially timewise adds images (input images) of still pictures at individual discrete time points included in a motion picture to be analyzed, thereby generating two kinds of addition images (image A and image B), respectively including images of still pictures at different discrete time points with the images being added at different ratios. Matrix development modules respectively take out pixel groups (first pixel group a(i, j) and second pixel group b(i, j)) located in a predetermined area (for example, in an area having a size of 3×3), from the generated image A and image B. A motion detection module compares the taken out first pixel group a(i, j) and second pixel group b(i, j), to detect a motion component in the motion picture to be analyzed.

Abstract: An addition image generation module 10 sequentially timewise adds images (input images) of still pictures at individual discrete time points included in a motion picture to be analyzed, thereby generating two kinds of addition images (image A and image B), respectively including images of still pictures at different discrete time points with the images being added at different ratios. Matrix development modules respectively take out pixel groups (first pixel group a(i, j) and second pixel group b(i, j)) located in a predetermined area (for example, in an area having a size of 3×3), from the generated image A and image B. A motion detection module compares the taken out first pixel group a(i, j) and second pixel group b(i, j), to detect a motion component in the motion picture to be analyzed.

Abstract: Helmet mounted system is provided which includes a helmet which is custom fitted to a user, an optical system which is removably attachable to the helmet, an attachment which is fixedly attached to the optical system, and a mount which is custom fitted and fixedly attached to the helmet. The mount is located on the helmet such that once the attachment is snap-fit onto the mount, the optical system is in place for use by the user, without any further adjustment.

Abstract: A continuous taking camera has eight exposure chambers arranged in two horizontal rows and four vertical columns. One 35 mm full size original frames of photographic film is divided into eight sub-frames. One taking lens is disposed in front of each of the exposure chambers. A stationary shutter plate is disposed behind the taking lenses. Openings are formed in the stationary plate behind the respective lenses. First and second shutter disks are rotatably supported coaxially on the stationary plate on a single shaft. A first group of two holes is formed in the first disk. A second group of two holes is formed in the second disk. The second disk is rotated by the rotation of the first disk, there being a pin-and-slot lost motion connection between the two disks, so that different sets of holes in the disk register with each other, depending on the direction of rotation of the disks.

Abstract: Method and photographic apparatus for performing motion studies on a moving subject. The moving subject is photographed through a rotating disc having at least one transparent aperture and a plurality of filter apertures covered with filter plates. Opaque regions of the disc separate the apertures from one another. Preferably, miniature spotlights are connected to moving points of the subject that are desired to be studied. Each of the spotlights projects a beam having essentially one selected wavelength to pass through the filter apertures and the filter plates. Incident background light, lighting the subject, is prevented from passing through the filter apertures by virtue of the filter plates. As a result, a photograph produced by the camera includes a series of light-streak images produced by the motion of the spotlights and the light emitted by the spotlights entering the filter apertures. Interruptions in the light-streaks are produced by the opaque regions of the disc.

Abstract: The disclosure provides a process and an apparatus for a system of animation and a system of teaching finger spelling.

Abstract: Methods and apparatus for motion estimation in motion picture processing are disclosed in which an initial velocity vector is selected as an estimation of the displacement of a region from a location in a first frame to a corresponding location in a second frame and the velocity estimate is then refined by minimizing an average value of the squared directional gradient residual over the region. A continuous signal representation is obtained from a set of image intensity samples over the region of interest and, from tThe U.S. government has rights in this invention pursuant to NSF Grant No. DC1-8407285.

Abstract: Laser diode marker for high speed cinematography.It comprises a power laser diode operating in pulse-like manner, electronic control means of the laser diode enabling the latter to emit a light signal and means for transmitting the latter to a photosensitive circuit with which the camera used is provided.Application to the time marking of events.

Abstract: A method for timing races and apparatus for performing the method including a cinematographic camera the lens of which is directed onto the finishing line. All data necessary for the evaluation of a race from preparation for start, start and finish appear on a single document which may be a photographic film or a magnetic tape. On such record will be shown the starting signal (37), the reaction times (t.sub.2, t.sub.3) of the participants of the starting signal, possibly the wind speed during the race and finally the arrival times (t.sub.6, t.sub.7) of the participants. The several parameters are recorded together with a scale giving reference times.

Abstract: An apparatus and method for showing motion in a single color photograph in which motion of an object is shown by displaced images of the object in different colors. The scene to be photographed is illuminated by a light source including a plurality of light units emitting light of differing spectral composition. The light units are individually and sequentially activated, the light emitted from all of the units appearing to be emitted from substantially the same location. The flashing of the light units is controlled by a timer. The resulting photograph shows the non-moving objects in a color which is the composite of the spectral composition of all of the light units, typically the natural color. The movement of an object is shown by a spaced series of sharp images of that object in a variety of colors. The color sequence corresponds to the sequence of the flashes of the light units.

Abstract: There is disclosed a method of producing a photograph of a mobile subject such as a vehicle, in which method a camera is mounted for linear translational movement along a support in a direction parallel with the path of movement of the subject. A motion transmitting operative connection is established between the subject and the camera such that for a linear translational displacement of the subject in said direction there will be a corresponding linear translational displacement of the camera in said direction along said support. The motion transmitting connection may comprise a mechanical connection e.g. via Bowden cable, or an electrical or electronic servo arrangement. To produce a photograph, the subject is displaced linearly in said one direction while making a photographic exposure in the camera, so that the period of the exposure lies within the period of corresponding movement of the camera along said support.

Abstract: An image viewing device is provided with movable projectors which superimpose illuminated marks on the image. Each projector can signal its location relative to a rest position and, by aligning the illuminated marks with selected features on the image, the distance between the features can be determined and displayed. Signal storage means permit comparisons between successive measurements. The viewing device can translate and rotate the viewed image so that the selected features can be aligned with the travel direction of the movable projectors.

Abstract: A stereo photographic measurement system having two wide angle lenses conted to a high speed motion picture camera by fiber-optic imaging bundles, and a target system, the camera and lenses being mounted upon one object and the target being mounted upon another object subject to motion relative thereto within the overlapping views of the lenses. In one embodiment head motion relative to the subject's torso during parachute opening is measured by this system with the target mounted on the back of the head and the lenses mounted near the base of the neck. Measurements of target position in each frame of stereo film by comparison of position of squares on the target are used to calculate head motion with respect to the upper torso.

Abstract: A device for obtaining a topographic picture of the surface of a rotating object comprising turret assembly mounting a pulsed laser, a photorecorder, an optical system for forming a set of light planes, and a system designed to synchronize a laser emission instant as the rotating object passes a preset point on its path, as well as a reflector arranged on the axis of rotation of the object. The pulse laser, the optical system for forming a set of light planes, and the turret assembly are installed coaxially with the axis of rotation of the object.

Abstract: A scene containing one or more targets for simulated target practice is pographed in a special motion picture camera such that only one half of each frame is exposed. After reversal development, a transparent template having two sets of aligned, spaced-apart cross-hairs is positioned over the film such that the upper set of cross-hairs is aligned with one of the recorded targets. Then, using the lower pair of cross-hairs as a guide, a pin-hole is punched in the unexposed i.e. opaque portion of the frame. This action is repeated for every frame in the film, altering the size of the dot as need be, as the target moves towards or away from the camera.

Abstract: A control apparatus for controlling operation of motion picture target apparatus, said control including servo control device for storing or calculating for each of a plurality of different types of weapons the flight times and trajectories of a projectile for a plurality of range settings of the weapon, said servo control device means producing an electrical output dependent upon flight time and trajectory, weapon selector being provided for selecting the stored or calculated information relating to a particular weapon, a stop control for selecting the range in accordance with the simulated range of the target image projected onto a screen, a stop control responsive to the produced electrical output of the servo control device dependent upon flight time of the projectile for stopping movement of a film through the projector, an audio detector for detecting the firing of a weapon for producing a start signal for the control apparatus and a solenoid responsive to the electrical output of the servo control devi

Abstract: A method and apparatus for generating a variable pulse width code of at lt three binary coded decimal digits at a rate sufficiently greater than the film speed of a movie camera to cause a single light source in the camera to record in a continuous sequence all the bits of the three digits on the edge of a film in the camera adjacent each frame.

Abstract: A method of matching a golfer with golf balls with varying aerodynamic properties is disclosed. The "launch conditions" with which the golfer "launches" a golf ball are measured to determine the golf ball dimple pattern most suitable for a particular golfer or to determine modifications which should be made in his style of play or club design.

Abstract: A method of making and utilizing a composite three layer specially polari motion target film for gunnery practice in which two vectograph films of 90.degree. variance in polarization and a black and white film comprise the composite film and are prepared by image transfer from a normal color movie film of a real world scene including background and target areas made with the target areas painted a color uncommon to the colors in the background. The method includes filtering out background and target areas respectively in image transfer to the respective vectograph films and in utilizing a filter rendering an appropriate gray value to the uncommon color target areas in the image transfer to the black and white film to cause the uncommon color targets to blend in with the background properly in the image obtained from the composite film. The result obtained is a complete motion picture film plus target areas, visible and invisible, of 90.degree.