43 results about "Pan–tilt–zoom camera" patented technology

A gaze direction determining system and method is provided. A two-camera system may detect the face from a fixed, wide-angle camera, estimates a rough location for the eye region using an eye detector based on topographic features, and directs another active pan-tilt-zoom camera to focus in on this eye region. A eye gaze estimation approach employs point-of-regard (PoG) tracking on a large viewing screen. To allow for greater head pose freedom, a calibration approach is provided to find the 3D eyeball location, eyeball radius, and fovea position. Both the iris center and iris contour points are mapped to the eyeball sphere (creating a 3D iris disk) to get the optical axis; then the fovea rotated accordingly and the final, visual axis gaze direction computed.

A system for automatically acquiring high-resolution images by steering a pan-tilt-zoom camera at targets detected in a fixed camera view is provided. The system uses automatic or manual calibration between multiple cameras. Using automatic calibration, the homography between the cameras in a home position is estimated together with the effects of pan and tilt controls and the expected height of a person in the image. These calibrations are chained together to steer a slave camera. The manual calibration scheme steers a camera to the desired region of interest and calculates the pan, tile and zoom parameters accordingly.

A videoconference apparatus and method coordinates a stationary view obtained with a stationary camera to an adjustable view obtained with an adjustable camera. The stationary camera can be a web camera, while the adjustable camera can be a pan-tilt-zoom camera. As the stationary camera obtains video, faces of participants are detected, and a boundary in the view is determined to contain the detected faces. Absence and presences of motion associated with the detected face is used to verify whether a face is reliable. To then capture and output video of the participants for the videoconference, the view of the adjustable camera is adjusted to a framed view based on the determined boundary. In the end, active video captured in the framed view with the adjustable camera can be sent to a far-end for the videoconference.

The invention discloses a method capable of amplifying and tracking a goal in a master-slave mode between a fixed camera and a pan tilt zoom (PTZ) camera and relates to the field of video surveillance. The method capable of amplifying and tracking the goal in the master-slave mode between the fixed camera and the PTZ camera achieves that the goal in an image is quickly amplified and tracked in the master-slave mode. The method includes the steps of building matching relation between view of the wide angle fixed camera and view of the PTZ camera, thereby converting a goal image coordinate found in the fixed camera to a corresponding PTZ control command, controlling PTZ to automatically aiming at the goal to appropriately zoom, and driving PTZ camera by a tracking result of the fixed camera to keep tracking to the goal. The method capable of amplifying and tracking the goal in the master-slave mode between the fixed camera and the PTZ camera has the advantages of being capable of achieving 'what you see is what you get' due to the fact that the goal is directly clicked and selected through the fixed camera with the wide view angle, fast in response speed of a user, simple and convenient, good in user experience, capable of avoiding difficulties in dynamic tracking to form a reliable solution by adopting the mature static camera goal tracking technology and matching with fixed PTZ camera coordinate mapping steps with high reliability.

The invention discloses a networking video monitoring system. The system comprises multiple pan-tilt-zoom cameras serving as video monitoring front-end devices and a main monitoring center provided with a main control device, wherein the main control device is connected with the multiple pan-tilt-zoom cameras, a monitoring processing unit installed on each pan-tilt-zoom camera is connected with a geographical location information acquiring unit, a level angle acquiring and setting unit, an elevation angle acquiring and setting unit, a ranging unit and a data storage unit, and the main control device of the main monitoring center is connected with the monitoring processing unit of each pan-tilt-zoom camera. Furthermore, the invention discloses a method for achieving real-time linkage monitoring of the networking video monitoring system. According to the method and system, real-time all-weather uninterrupted video monitoring can be conducted on any monitored object through the urban networking video monitoring system in time quickly, comprehensive and multi-angle shooting requirements of users can be met, and production and working safety of a monitored area is guaranteed.

In various embodiments, a High Definition (HD) camera may be controlled by one or more motors in a base of the HD camera. Cables and other components may be used to manipulate the HD camera lens through the side arms of the HD camera. Putting the motors in the base may reduce the size of the outer case of the HD camera and add stability. In some embodiments, images from the HD camera may be converted into a serialized stream and transported over a cable from the HD camera. Other components may also be used to increase the functionality of the HD camera.

The system disclosed herein seeks to solve the problem of unnatural, dizzy camera motion when moving a camera between two preset positions, e.g., head and shoulder shots of two videoconference participants. Particularly, the system described herein attempts to mimic the camera movement that a professional camera operator would use in a professional video production. A preferred method of moving the camera between two positions is to first zoom out, away from the first position, pan across to the next position, then zoom in. This gives viewers of the camera content an idea of the spatial relationship between the two camera positions and also avoids the aesthetically undesirable effect of panning through irrelevant visual background at high zoom ratios. Disclosed herein is a technique of producing this desired behavior in the context of an automatically or semi-automatically controlled video camera, such as those used in conjunction with videoconferencing equipment.

A method and apparatus acquires images of a scene with an omni-directional imager and a pan-tilt-zoom imager. A relationship between pixels in the input image and locations in the scene is expressed in terms of polar coordinates. An event is detected in the input images and the omni-directional pan-tilt-zoom camera is directed at the event in the scene using the relationship expressed in the polar coordinates.

The invention provides a video monitoring image identification-based automatic coal caving control system. According to the video monitoring image identification-based automatic coal caving control system, a pan-tilt-zoom camera is arranged on a tail beam, and comprises a first shooting part and a second shooting part; the first shooting part is arranged on a coal conveying direction parallel to aback scraper plate conveyer to obtain the coal conveying process images of the back scraper plate conveyer; the second shooting part is arranged in a direction vertical to the coal conveying direction of the back scraper plate conveyer to obtain coal conveying images of the back scraper plate conveyer, and determine the coal conveying amount and coal ash content of coal on the back scraper plateconveyer; the pan-tilt-zoom camera is used for sending the coal conveying process images, the coal conveying amount and coal ash content of coal on the back scraper plate conveyer to an upper computerfor checking by monitors. The video monitoring image identification-based automatic coal caving control system is capable of direction expanding monitoring range of operating personnel to a back coalcaving working face, and avoiding influences of coal and gangue identification and coal thickness change factors caused by geological condition change on coal caving control process.

A method of tracking an object comprises providing a plurality of cameras, determining an image from each camera, and determining a common plane in the images. The method further comprises determining a parallax for scene points across the images, incorporating the parallax as a feature in a background model, and estimating a change in the scene using the background model. A camera can be a pan-tilt-zoom camera. A camera can be uncalibrated.

The invention relates to a video tracking system of a panoramic pan-tilt-zoom camera, belonging to the technical field of electronic apparatuses. The video tracking system comprises a panoramic cameramodule, a pan-tilt-zoom camera, a near-infrared label and a computer, wherein the panoramic camera module and the computer are connected in series to transmit panoramic video information of a trackedenvironment; the pan-tilt-zoom camera and the computer are connected in series to transmit video information and control information of a tracked target; and the near-infrared label is positioned onthe tracked target to transmit near-infrared light. The panoramic camera module is utilized to realize 360-degree panoramic tracking so as to enlarge a tracking view; the pan-tilt-zoom camera is utilized to obtain a clear video image of the tracked target; the near-infrared label is utilized to correctly recognize and position the tracked target; and image processing software is utilized to occupyless computer resources and improve the timeliness, therefore, the system rapidly and correctly obtains the clear video image of the tracked target finally.

Methods and systems for a video surveillance system are provided. The system includes a video camera assembly including a base, a first pan/tilt mechanism, and a second pan/tilt mechanism. The first pan/tilt mechanism is removably coupled to the base. The second pan/tilt mechanism is configured to be coupled to the base in replacement of the first pan/tilt mechanism. The system also includes a memory configured to store pan/tilt mechanism positional calibration information, and a controller communicatively coupled to the first pan/tilt mechanism configured to receive positional calibration information for the first pan/tilt mechanism, store the positional calibration information to the memory, retrieve the positional calibration information from the memory when the first pan/tilt mechanism is removed and replaced with the second pan/tilt mechanism, and download the retrieved positional calibration information for use by the second pan/tilt mechanism.

The invention, which is suitable for the security and protection field, provides a full-view-field-based controlling method and apparatus of a pan-tilt-zoom camera. The method comprises: a user designates a to-be-turned view angle of a pan-tilt-zoom camera on a full-view-field graph, wherein the designated view angle includes a view angle size and a view angle direction; according to calibration information, measured in advance, of the pan-tilt-zoom camera, a pan-tilt-zoom camera control parameter corresponding to the view angle designated by the user is calculated; and the pan-tilt-zoom camera is controlled based on the calculated pan-tilt-zoom camera control parameter, so that the controlled view angel of the pan-tilt-zoom camera is consistent with the view angle designated by the user basically. According to the invention, after the user designated the view angle on the full-view-field graph, the pan-tilt-zoom camera is controlled automatically and rapidly to be at the designated view angle. Therefore, the user can carry out operation simply and visually; the time and labor are saved; the adjusting efficiency is high; and the switching position is accurate.

The present disclosure in some embodiments provides a method of setting a captured image by a pan-tilt-zoom camera (PTZ camera) and an apparatus therefor. A method of setting a captured image by a PTZ camera and an apparatus therefor are disclosed for setting captured images of a plurality of image capturing areas, to enable prompt setting of multiple images with the PTZ camera changing its targeted imaging areas while maintaining an On Screen Display setting mode (OSD setting mode) for captured image setting.

The invention discloses a tunnel structure disease identification system based on a track type inspection robot. The tunnel structure disease identification system comprises an annular track installed on a tunnel arch waist, an inspection robot installed on the annular track, a robot positioning system, a communication system and a control station. The robot comprises a robot body, a bearing type server and a pan-tilt-zoom camera. A sensing system comprises a camera provided with an electric holder, a tunnel harmful gas concentration and air pressure sensor, a temperature/humidity sensor and a brightness and wind speed sensor. A control system mainly configures a tunnel structure disease identification program and a positioning and control program for robot inspection operation on the server. The tunnel structure disease identification program is used for discriminating and positioning tunnel diseases according to the video images and other sensors. The tunnel structure disease identification system solves the technical problem that in the prior art, tunnel structure diseases cannot be automatically and comprehensively discriminated, can effectively relieve the manual inspection pressure of an existing tunnel, and can increase the tunnel safety coefficient.

An electronic device receives an image of a monitored area captured a pan-tilt-zoom (PTZ) camera. When the electronic device rotates, rotation information of the electronic device relative to a previous position state of the electronic device is detected by an electronic gyroscope. The electronic device converts the rotation information of the electronic device into rotation information of a lens of the PTZ camera relative to a present position of the lens according to preset association, generates a first control command according to rotation information of the lens, and control the lens of the PTZ camera to move from the present position to a new position according to the first control command The electronic device receives a new image of the monitored area that is captured by the lens of the PTZ camera at the new position.

The present invention enhances the player's gameplay visual, feedback and other experiences by taking advantage of optical adapters, feedback mechanics, advancements in theatrical audio, frame rate throttle, meta-file object framework for storage and retrieval, calibration advancements, vocal command enhancements, voice object lookups, facial/body scan, color/clothing coordination, party or celebration capabilities, noise cancellation, interactive object placement, heart rate monitor, pan-tilt-zoom camera advances, cooperative gameplay advances and programming advancements.