Abstract: Simultaneously processing video input data from thousands of input streams, in real-time or after the fact, automatically carries out logging of video data, extraction of metadata, derivation of additional metadata from extracted metadata, association of extracted metadata and derived metadata with specific video inputs, and record video data and/or metadata in databases for further analysis or viewing, while maintaining linkage between extracted and derived metadata and the video and/or metadata used in its extraction or derivation. Metadata associated with video data using video and associated metadata from additional video data inputs and/or improved processing methods are improved as such information becomes available for processing.

Abstract: An arrangement for controlling the recirculation of exhaust gases within internal combustion engines, includes a recycling system of conduits connecting the engine exhaust manifold to the main inlet manifold of the carburetion system and having a recirculating valve interposed within such circuit. The obturator of the recirculation valve has a truncated-cone configuration of such design that the increase in the variable area of the opening between the stopper or obturator and its seat is a function of the engine speed and load. In recycling the exhaust gases, the invention serves as an antipollution means for the exhaust gases of internal combustion engines.