923 results about "Multi camera" patented technology

A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.

A pair of cameras having an overlapping field of view is aligned based on images captured by image sensors of the pair of cameras. A pixel shift is identified between the images. Based on the identified pixel shift, a calibration is applied to one or both of the pair of cameras. To determine the pixel shift, the camera applies correlation methods including edge matching. Calibrating the pair of cameras may include adjusting a read window on an image sensor. The pixel shift can also be used to determine a time lag, which can be used to synchronize subsequent image captures.

The invention provides an image switching accuracy improving method and device which is used for multi-camera system which can produce wide-angle image. The distortion of lens will make the overlap area photographed by multi-camera not accord with the characteristics, so, the gap of combined wide-angle images can be seen. The image switching accuracy improving method and device provided by the invention proofreads the distortion of lens, and makes the characteristics in overlap area accord with it and jointing engine can produce the seamless wide-angle image easily.

The present invention is a portable camera and lighting unit for standalone use in videography to create a high-resolution well-illuminated video feed from a vast array of camera angles and positions, the illumination source always inherently tracking with the camera. The unit may also be used as a satellite in combination with a primary video conferencing and production station (VVPR) for multi-camera production and teleconferencing capabilities. The portable camera and lighting unit includes a portable base, a mast extending upward from the base, and an articulating boom that is fully-pivotable and extendable. A remote control Pan-Tilt-Zoom camera is mounted at the end of the boom for overhead images of healthcare procedures, and an adjustable beam light source is mounted directly on the camera for lighting. The mast is equipped with a color monitor coupled to the camera for operator previewing at the portable unit, and the remote control camera provides a single video feed that can be teleconferenced, recorded, and even mixed with other cameras when used as a satellite adjunct to the primary VVPR, thereby allow full production capabilities for live interactive broadcasts, all in real time by a single operator from a single point of control. The portable unit is mobile and offers more diverse lighting and camera angles than previously possible.

A system and method are disclosed for improved video transmission, particularly in security settings. An improved security controller combines the interfaces and functionality for high quality video delivery over often less-than-perfect wireless networks, multi-camera analog / digital video controllers and encoders, multi-frequency wireless camera support, connectivity for serial controllers, network switching, and distributed digital video recording with optional object and motion detection. The video transmission is enhanced using wireless adaptive video encoding, mobile viewing optimization, and wireless bandwidth improvement.

An apparatus and method for calibrating machine vision measuring systems that have more than one camera are disclosed. A first calibration target is mounted in a fixed relationship to a first camera of the machine vision measuring system. A third camera mounted in a fixed relationship to a second camera of the machine vision measuring system. Second and third calibration targets are mounted in a fixed relationship to one another and viewable by the first camera and by the third camera. A data processor is programmed to compute calibration of the first camera and the second camera, based on a position of the second calibration target relative to the third calibration target and a position of the first camera with respect to the third camera. The apparatus and method provide a way to continuously measure the positions of the cameras used in the measuring system to calibrate the system.

The invention is to track and to photograph an object mobile over a wide range, by a cooperative operation of multi-camera. The invention provides a mobile tracking system for tracking a mobile by a cooperation of multi-camera, in which each camera includes photographing means which photographs and recognizes a mobile, changing means which changes a view angle of the photographing means, position deriving means which derives a position of the self camera, distance deriving means which derives a distance between the self autonomic camera and the mobile, and communication means which transmits an identifier of the self camera, a position of the self camera, a moving direction of the mobile and a distance between the self autonomic camera and the mobile to another camera and receives an identifier of the other camera, a position of the other camera, a moving direction of the mobile and a distance between the other camera and the mobile from the other camera.

The invention discloses a human body target tracking method in a nonoverlapping vision field multi-camera network, which comprises the following steps of target detection of a single camera, target tracking of the single camera, and target association and continuous target tracking of multi cameras, wherein the target association of the multi cameras comprises the following substeps of target characteristic extraction and topological relation establishment, the target characteristic extraction is extraction of each human body movement target HSV (Hue, Saturation and Value) characteristic, andthe topological relation establishment is establishment of the space-time topological relation of the multi-camera network according to the obtained association relation of targets. By the human bodytarget tracking method disclosed by the invention, the continuous tracking of human body movement targets in a large scene is realized, and the problem of the monitoring of the limited vision range of a single camera is solved.

A system and method for efficiently locating in 3D an object of interest in a target scene using video information captured by a plurality of cameras. The system and method provide for multi-camera visual odometry wherein pose estimates are generated for each camera by all of the cameras in the multi-camera configuration. Furthermore, the system and method can locate and identify salient landmarks in the target scene using any of the cameras in the multi-camera configuration and compare the identified landmark against a database of previously identified landmarks. In addition, the system and method provide for the integration of video-based pose estimations with position measurement data captured by one or more secondary measurement sensors, such as, for example, Inertial Measurement Units (IMUs) and Global Positioning System (GPS) units.