Abstract:
Disclosed is a method for merging photographic images including the steps of setting an angle of view to be zero in a perspective direction and to have a positive value in a direction perpendicular to the perspective direction; generating a plurality of source images by photographing the real world intermittently and continuously with moving and rotating a camera in a predetermined pitch in the perspective direction; obtaining each row image by eliminating overlapped portions of the source images in a rotating direction and then merging the source images; and eliminating overlapped portions of the row images in the perspective direction and then merging the row images.
Abstract:
The present invention provides a system for processing panoramic photographic images. The system includes a mirror for reflecting an image of a scene, a mounting assembly for mounting the mirror on an axis, a camera for capturing the image reflected by the mirror, a digital converter device for producing pixel data representative of the captured image, and means for radially linearly mapping the pixel data into a viewable image. The mirror includes a convex reflective surface defined by rotating around the axis: an equi-angular shape or a compensated equi-angular shape. Methods for processing images in accordance with the system are also provided.
Abstract:
The present invention describes a self-contained omni-directional imaging device. The device is designed to contain within it all mechanic, electronic, optic and electro-optic components required for its operation, namely: omni-directional optics, image capture device, power source, illumination sources, transmitters, receivers and additional optional elements for enhanced capabilities. A preferred embodiment of the invention describes such a device housed inside a durable spherical structure, designed for deployment to potentially hazardous environments, enabling omni-directional view to those environments without endangering the viewer. The device is capable of acquiring and transmitting still or video images and audio streams to a remote, control and display unit located near the operator. Among the typical uses for such a device are: security and surveillance, search and rescue operations, anti-terrorism and situation assessment in hostage situations and a variety of civilian and domestic uses, such as remote baby monitoring.
Abstract:
The invention concerns a magnifying device (100) for a panoramic anamorphic imaging system (1), said system (1) having an optical axis A and primary reflecting means (2) provided with an outer primary and at least partly reflecting sensing surface (3). The invention is characterised in that it comprises at least a lens (101, 111) in the form of at least a hollowed tube having a main axis P and a magnification substantially perpendicular to said axis. The invention also concerns a set of devices (100), a system (1) for panoramic anamorphic imaging and a method for panoramic anamorphic imaging.
Abstract:
The invention concerns a sighting device (10) for determining the position of a target in space, comprising at least a reflector (20) provided with an outer surface (30), at least partly reflecting, associated with an electromagnetic wave sensor (4). The invention is characterised in that it comprises four reflecting means (20, 21, 22, 23) associated each with an electromagnetic wave sensor (40, 41, 42, 43) said reflecting means (20, 21, 22, 23) being each provided with a respective concave conical surface (30, 31, 32, 33) and being arranged such that the respective axes (A0, A1, A2, A3) of the four surfaces (30, 31, 32, 33) are parallel and vertical, three conical surfaces (31, 32, 33) being arranged in the same horizontal medium plane P so that their respective axes (A1, A2, A3) form in horizontal cross-section a triangle and the fourth conical surface (30) being arranged above the other three.
Abstract:
Imaging apparatus comprising two imaging units (12) for producing images of respective scenes, each imaging unit comprising optical means for gathering light over a wide sector and directing it to image sensing means (14). The optical means of the imaging units can be back-to-back so as to encompass the imaging sensing means (14) and each unit can include a convex reflector (16) for reflecting light from a panoramic scene onto a planar reflector (18) which reflects light through a port or ports (24) in the convex reflector (16) onto a CCD array (14) within the convex reflector. Other reflecting systems include convex, concave and planar reflecting surfaces. Also disclosed are arrangements for reducing back-workings in the back-to-back fisheye lenses; a CCD with a curved image sensing surface; light shielding means; a method of generating position signals for navigating round a panoramic scene; and a device including a segmental field of view and an annular field of view which are combined to provide a panospherical image, the image output is processed to form a composite image in a flat plane.
Abstract:
An "immersive experience" motion picture theatre is provided either as a purpose-built structure or as a "retro-fit" of an existing domed theatre. The theatre of the invention has an audience seating deck (20) which slopes downwardly towards a screen (22) of part-cylindrical shape. The screen slopes upwardly and extends above the seating deck as well as wrapping around the sides of the seating deck. A projector (26) located within the seating deck (20) projects images onto the screen (22) about an upwardly oriented projection axis, through an orthographic fisheye lens which minimizes distortion of centre regions of the images. In this way, motion pictures that have been shot for showing on domed screens can be successfully projected onto the curved screen (22) of the invention.
Abstract:
An optical system for displaying an image comprising means for illuminating an object (211) and directing the image light to a display device (205) having an input surface and an output surface. Anamorphic optical means (Ch, Cv) are disposed between the object and the input surface operative to focus one directional component of the image at the input surface and to focus a different directional component of the image at the output surface.
Abstract:
Certain optical imaging systems exhibit disparate vertical and horizontal image focal surfaces; at least one of which is tipped with respect to the optical axis. The projection optics which illuminates such systems must provide that the vertical image components focus upon the nominal vertical image surface, while the horizontal image components focus on the disparate horizontal image surface. Because at least one of these image surfaces may be tilted with respect to the projection axis, correction is required to maintain focus over the entire image surfaces and to eliminate keystoning. The system may also require differing vertical and horizontal image magnifications as projected upon the above disparate focal surfaces. This invention describes, inter alia, the techniques for meeting these varied requirements, to project a rectilinear object field such that it forms a final focused rectilinear image in a system having tipped and disparate image planes.
Abstract:
A device for omnidirectional image viewing providing pan-and-tilt orientation, rotation, and magnification within a hemispherical field-of-view that utilizes no moving parts. The imaging device is based on the effect that the image from a fisheye lens (1), which produces a circular image of an entire hemispherical field-of-view, which can be mathematically corrected using high speed electronic circuitry (5, 6, 7, 12 and 13). More specifically, an incoming fisheye image from any image acquisition source (2) is captured in memory (4) of the device, a transformation is performed for the viewing region of interest and viewing direction, and a corrected image is output as a video image signal for viewing, recording, or analysis. As a result, this device can accomplish the functions of pan, tilt, rotation, and zoom throughout a hemispherical field-of-view without the need for any mechanical mechanisms. The preferred embodiment of the image transformation device can provide corrected images at real-time rates, compatible with standard video equipment. The device can be used for any application where a conventional pan-and-tilt or orientation mechanism might be considered including inspection, monitoring, surveillance, and target acquisition.