A communication system having programmable, addressable receivers that receive, store, process, and send digital and conventional video, audio and control signals for use in, among other things, a cable video network (9). Conventional audio and composite video and digital data signals are assembled into a single transmission by an automated production system. The transmission is delivered to the addressable receivers where the audio and video signals and some portion of the data may be selected and processed for re-transmission (114, 116, 118, 120, 98). The receivers may be addressed individually, in units or in groups for the purpose of receiving information on the basis of one or more pre-selected criteria.

Multimedia information transmission and distribution system

A scanning system scans a surface of a three-dimensional object from a first position and a second position. Using common alignment at these positions, a first scanning sample and a second scanning sample are generated. The first and second scanning samples include point clouds having data points representing positions of the scanned surfaces. The first scanning sample and the second scanning sample are oriented relative to each other based on the common alignment of the scan positions.

Scanning system for three-dimensional objects

A method and apparatus for image texture analysis in which the image is mapped into a first set of binary representation by a monotonically varying operator, such as a threshold operator. Each binary representation in the first set of binary representations is mapped to a further set of binary representations using a second monotonically varying operator, such as a spatial operator. The result of the two mappings is a matrix of binary image representations. Each binary image representation is allocated a scalar value to form an array of scalar values which may be analysed to identify defined texture characteristics.

Method for image texture analysis

An image generation system for developing three-dimensional electronic models of objects includes a scanner and a computing system. The scanner may be selectively positioned adjacent to an object in different geographic positions. The scanner may provide scanner position information and image data representative of the object to the computing system. The computing system may generate a three-dimensional electronic model of the object from the information. The three-dimensional electronic model may be stored and utilized in other applications, such as an electronic navigational map.

System for generatingthree-dimensional electronic models of objects

The invention relates to a coding system for storing whichever dimension multidimensional virtual worlds data, to the end of their high-speed transmission among information processing systems and their shared use and creation. With the proposed method, as for the invention, information needed to define three-dimensional objects and other entities needed to create a virtual world in space and time are stored into reusable procedural data structures. In this way a "compression by concepts" of virtual world data is done. Such data are not stored and transmitted as they are, but as abstractions of object categories. Such a technique allows to reuse any data structures any time an object of its type is requested; in this way the amount of data to store or transmit is greatly reduced, and the downloading and exploration of virtual worlds in real time even with low-speed connections are thus allowed. The technique also allows the definition of highly variable dimensions virtual worlds, from the subatomic to the cosmic one. The spatial and temporal extensions of each element are stored in a conceptual way too, as well as the coordinates of each entity in space and time.

Encoding method for efficient storage, transmission and sharing of multidimensional virtual worlds

A system and method for computer graphics generation which uses a local library of graphics textures. When an application, run either locally or over a communications system, requires texture-mapped graphics, texture data is retrieved from the local library instead of transmitted to the system.

Method and apparatus for texture transmission and storage

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Method and apparatus for texture transmission and storage