Abstract in simplified Chinese:本发明系关于一种实时侦测经极化的识别指针之系统与方法。所提供之影像数据的框架具有复数个像素,其中各像素均含经极化的光强度信息。每一像素之强度値系自该经极化的光强度信息判定。选择具有在一强度范围内之强度値的该等像素之第一部分。分析该第一部份中具有在一零限范围内之相近线性极化値之角度之该等像素,借以侦测在该影像数据中之该经极化的识别指针。
Abstract:
A method of transforming an input image from a hemispherical source to an output image in rectilinear coordinates is disclosed. The method includes receiving data representative of an input image originating from a hemispherical camera and having a size defined by an input image height and an input image width. Once the data is received, an output image width and output image height representative of a size of a in rectilinear coordinates output image is calculated based on the size of the input image. The in rectilinear coordinates output image is then generated by mapping input image pixels to locations within the width and height of the output image, without reference to the optical characteristics of the hemispherical camera.
Abstract:
A control system for use with one or more video surveillance cameras forming a video surveillance system. The control system includes a video database module wherein a database entry includes at least one sensor condition defining an alarm state for each camera. Additionally, there is an alarm condition module that receives one or more sensor signals from one or more sensors associated with a camera and retrieves the sensor condition defining an alarm state for the camera. The alarm condition module outputs an alarm signal if the alarm condition module determines that the one or more sensor signals meets the one or more sensor conditions. The control system is modular and may be distributed in a network environment. The control system also monitors the network bandwidth and can adjust the throughput of digital data representing the digital images in order to avoid any bandwidth limitations.
Abstract:
A method of taking an aerial survey maps boundaries of a first image and a second image from a first plane to a second plane to determine boundaries of an output image in the second plane. For a plurality of pixels in the output image, the method determines a corresponding pixel of either the first image or second image in the first plane.
Abstract:
A method for generating automated scripts for installing objects into databases on database servers. A script generator inputs parameters such as the target database server identifier and a list of target databases for the installation. The script generator also inputs a hierarchical directory tree with files at the child nodes containing object installation instructions. The script generator traverses the directory tree, starting with the root node, and generates an installation script. The script generator can also input a time/date at which the installation script will be automatically executed, allowing for unattended operation of the object installation procedure. Thus, a database administrator is substantially shielded from the complexity of the installation process and installations can be standardized across multiple database servers and databases.
Abstract:
Systems, methods, and computer program products for editing and displaying cartographic data are described. Cartographic source data is retrieved from a first record set and at least one feature of the source data is displayed in a display device. Based on a user's selection of a feature in the display device, source data corresponding to the selected feature is selected. Based on the user's modification of the selected feature in the display device, cartographic edit data, representing the user's modification of the feature, is created. The cartographic edit data is associated with the cartographic source data for the feature and the associated cartographic edit data is stored within a second record set. The source data and edited data may also be displayed by retrieving the cartographic source data for a feature from the first record set and retrieving the cartographic edit data associated with the source data from the second record set. The source data for the feature is merged with the associated cartographic edit data for the feature to create an output record set for display on the display device.
Abstract:
The present invention relates to a system and method of detecting polarized identification indicia in real-time. A frame of image data is provided (110) having a plurality of pixels, wherein each pixel includes polarized light intensity information. An intensity value is determined for each of the pixels from the polarized light intensity information (120). A first portion of the pixels having intensity values within an intensity range is selected (130, 140). The pixels in the first portion having similar angle of linear polarization values within a tolerance range are analyzed (180), thereby detecting the polarized identification indicia in the image data (190).
Abstract:
An apparatus and method for stabilizing image frames in a video data stream. A weighted average or centroid of the intensity or hue associated with pixels vs. the horizontal and vertical position of each pixel is calculated for a reference frame in the video data stream. A corresponding centroid is calculated for a subsequent frame in the stream. This image frame is then translated so that the centroid of the subsequent frame and the centroid of the reference frame coincide, reducing artifacts from shaking of the video capture device. Alternatively, the video stream frames may be divided into tiles and centroids calculated for each tile. The centroids of the tiles of a subsequent frame are curve fit to the centroids of tiles in a reference frame. An affine transform is then performed on the subsequent frame to reduce artifacts in the image from movements of the video capture device.
Abstract:
Forming a single image from multiple images is described. A first image and a second image partially overlap to define a common overlap region, and each image has multiple pixels. A boundary between the first image and the second image is automatically calculated based on processed pixel values in the common overlap region. Then the first and second image may be integrated along the boundary to form a single image.