Abstract:
The invention relates to a method of detecting objects within a wide range of a road vehicle. According to said method, the distance between a moving or stationary vehicle and one or more objects is calculated by distance-based image segmentation using stereoscopic image processing techniques and the properties of the detected objects are determined by object recognition in the segmented image areas. Image areas of three-dimensional and/or flat objects are detected and said three-dimensional and/or flat objects are detected by clustering 3D pixels according to defined criteria. Three-dimensional objects are determined by features with similar distance values and flat objects by features with similar height values.
Abstract:
The present invention has its applications in life-saving services, guarding services, in various human activities. Its embodiment provides possibility for stereo-observation and photographing in various scales, filing of object's coordinates - geographic latitude, longitude, altitude, observer's coordinates, distance between object and observer, hour and date, azimuth and measuring scale, by means of use of data, provided by a satellite navigation system. The camera can be of a non-reflex type or of mirror-reflex type, using photofilm or digital. In case the camera is digital, the photo and data can be transmitted to a satellite telecommunication system. In presented navigation system is achieved a high level of utilization ratio of composition elements; furthermore the system is constructed of a minimum number of building elements. Said system comprises a two-parted photographic lens (3), embodied in camera's body (1) and connected in parallel and movably to a camera sight (5). The connection between the two parts (2 and 4) of photographic lens (3) is provided by means of a dismountable joint (6), itself enabling the body (1) to work in three stable working positions.
Abstract:
The invention relates to an autostereoscopic method and a device for the three-dimensional representation of information according to a barrier-, lenticular-, prismatic masking- or similar method by means of flat-panel displays (liquid crystal, plasma, electroluminescent or other displays), for use in computer and video technology, games and advertisements, medical technology, virtual reality applications and other areas. According to the invention, the image points are proportionally displaced to follow the lateral movement of an observer by shifting, for each coloured subpixel, the intensity of the coloured subpixels to horizontally adjacent coloured subpixels. This method can be used with known devices. It becomes especially useful wehn, for each image point, n+1 adjacent coloured subpixels are triggered. Observers moving sideways continue to see the picture in almost consistently high quality.
Abstract:
A three-dimensional image recording/reproduction method, and an apparatus therefor. An opaque light control panel having a large number of fine light transmission portions at predetermined locations is placed between an object and a recording panel, and a large number of small images of the object are formed on the recording panel through the fine light transmission portions. The small images recorded on an image display panel are reproduced to display the three-dimensional image of the object. An opaque panel having an opening is disposed around the object or between the object and the light control panel, and a conversion operation is carried out so as to reverse the small image of the opening formed on the recording panel point-symmetrically by 180 DEG with a point, at which a line connecting the center of the opening of the opaque panel to each fine light transmission portion, being the point of symmetry. The cubic image is formed on the front side of the light control panel.
Abstract:
The invention concerns a high-definition autostereoscopic video terminal which is equipped with a first screen (19) and a second screen (19) for displaying a total image produced from two stereo images by optical superimposition. Each stereo image contains inter-rastered half-images each of which is intended for one eye (18.1, 18.2) of the viewer and consists of substantially vertical parallel strips. Disposed between the first screen (19) and the second screen (20) is a superimposition device (23) (half-silvered mirror) for superimposing the half-images intended for the left eye (18.2) and the half-images intended for the right eye (18.1) in order to produce a high-definition total image.
Abstract:
In the capture and display of three dimensional images, techniques are provided for controlling the amount of disparity between left and right images used to create a three dimensional representation to permit three dimensional perception which would otherwise be lost as dispartiy increased beyond psychological and physiological limits. Both mechanical (470) and electronic means (520) for controlling disparity are shown. Techniques are disclosed for creating three dimensional animations which utilize disparity control for adjusting the perceived depth of an object vis-a-vis a neutral plane. When zooming in on an object with a stereo camera pair, the shift is in focal length accompanying the zoom is accompanied by a simultaneous shift in disparity so that the stereo effect it not lost when a target object is very close, a moderate distance, or very far from the cameras.
Abstract:
A process for aiding the planning and conducting of radiosurgery through the use of computerized three dimensional stereoscopic real time display of the structure to be treated as well as the positioning of the radiation volumes or shots delivered by a Gamma knife or like radiosurgical apparatus. The treatment volumes being displayed as colored spherical images that may be individually universally manipulated to determine relative positioning one to another as well as to the confines of the area to be treated.
Abstract:
A viewing system is provided for presenting a real image in space that is rotated extremely rapidly so that an entire audience, regardless of an individual's position about the viewing system, can view the same image substantially simultaneously and continuously. An electronic image rotation system distorts, processes and rotates an image upon a cathode ray tube (CRT) (10), and a parabolic mirror (26) arrangement projects the image from the CRT (10) to provide a rotating real image in space (36). A rotatable polarized screen (72) and a separate, stationary polarized screen (80) cooperate to define a viewing window which remains continually aligned with the rotating real image in space (36).