Abstract:
A method and system of transmitting a plurality of wide-area surveillance area-of-interest video codestreams is described, First and second video codestreams are generated from a plurality of large format images that are captured sequentially in time. The first video codestream has a first plurality of areas-of-interest selected from the plurality of large format images and the second video codestream has a second plurality of areas-of-interest from the same plurality of large format images. The first video codestream is generated at a first frame rate and the second video codestream is generated at a second frame rate and the first and second video codestreams are combined to obtain a combined video codestream at third frame rate. The combined video codestream is then transmitted through a link to a demultiplexer that regenerates the first and second video codestreams.
Abstract:
A method of managing a container file of data files is provided. The method includes creating a container file having a container file metadata section by creating one or more empty records in the storage device. Each record of the one or more empty records includes a data file section reserved for storing a data file, a file metadata section reserved for storing metadata about the data file, and the file metadata section precedes or follows the data file section, a record metadata section including information about the record and having at least a record status mark indicating that the record is empty. The method further includes setting a container status mark in the container file metadata section to available, after creating the container file.
Abstract:
A method of configuring an image for data storage on a storage device in an overlapping-tiled format and a method of displaying a desired image selected for viewing on a display are disclosed. The method of configuring an image for data storage includes formatting an image to include a plurality of image tiles, each image tile in the plurality of image tiles having at least a portion that is substantially identical to at least a portion of an adjacent image tile in the plurality of image tiles. The method further includes converting data of the image from data in a first color space into data in a second color space so as to reduce a size of the data of the image, and storing the image data in the second color space.
Abstract:
A method of creating a container file for large format imagery and organizing data within the container file are described. In one embodiment, the method of creating the container file includes validating user input parameters for the file container, and determining whether the container file already exists, the container file having file container metadata. If the file container does not exist, creating the container by creating one or more empty records in a storage device, the one or more empty records having an image file section reserved for storing an image, an image metadata section reserved for storing data about the image and a record metadata section having at least a mark indicating that the image file section is empty. A size of the image file section, a size of the image metadata section and a size of the record metadata section are determined using the user input parameters.
Abstract:
A method of creating or updating a container file for storing images is provided. The method includes determining whether the container file already exists in a storage device, the container file having a container file metadata section. If the container file does not exist in the storage device, the method creates the container file by creating one or more empty records in the storage device. Each record of the one or more empty records includes an image file section reserved for storing an image, an image metadata section reserved for storing data about the image, a record metadata section including information about the record and having at least a record status mark indicating that the record is empty. The method further includes setting a container status mark in the container file metadata section to available, after creating the container file.
Abstract:
A method of making a video stream from a plurality of viewports within large format imagery is described. In one embodiment, the method includes retrieving a plurality of viewports within a plurality of images, each image being arranged as a matrix of tiles, from a file container. The method includes inputting parameters including an identification of a plurality of records where the plurality of images containing the plurality of viewports are stored, an origin of each of the plurality of viewports and a pixel width and a pixel height of each of the plurality viewports. The method further includes requesting the plurality of viewports from the file container using the parameters; and reading data of each of the plurality of viewports starting from the origin of each or the plurality of viewports. The method may further include arranging the plurality of viewports as a video codestream of a group of pictures.
Abstract:
A method of inserting an image into a container file includes reading source data including the image and opening the container file where the image will be stored. The container file comprises one or more records. Each record includes an image file section reserved for storing the image, an image metadata section reserved for storing data about the image, and a record metadata section having a status flag or status mark indicating whether the image file section is empty. The method further includes determining whether the source data is valid to be entered into a record in the one or more records, and if the source of data is valid, preparing the record and the image metadata, and writing the record into the container file and marking the status mark of the record as being updated while writing the record into the container file.
Abstract:
A method of creating a container file for large format imagery and organizing data within the container file are described. In one embodiment, the method of creating the container file includes validating user input parameters for the file container, and determining whether the container file already exists, the container file having file container metadata. If the file container does not exist, creating the container by creating one or more empty records in a storage device, the one or more empty records having an image file section reserved for storing an image, an image metadata section reserved for storing data about the image and a record metadata section having at least a mark indicating that the image file section is empty. A size of the image file section, a size of the image metadata section and a size of the record metadata section are determined using the user input parameters.
Abstract:
A method of processing a viewport within an image arranged as a matrix of tiles from a container file is provided. The method includes receiving a request to read data of the viewport starting from a point of origin of the viewport, the viewport having a pixel width and a pixel height, the viewport being a portion of an image that is stored in a record within the file container; computing column numbers or row numbers, or both, of the tiles containing the viewport; and reading in parallel or asynchronously each row or each column of tiles containing the viewport.
Abstract:
A method and system for requesting information by a client computer system from a server computer system are provided. The method includes sending a request for policy capability of the server computer system for a data type; receiving a response to the request including a list of derived data types that are supported by the server computer system; generating a policy using the list of derived data types; and sending a first data file and a first data file virtualization policy for storage.