Abstract: A system for locating at least one object in a real space by image processing, comprises a computation center (center), with a database of a virtual environment, a virtual representation of the real space, and computing the position of a point from which the virtual environment appears on a real space image obtained by an image acquisition device borne by the object. The center is sited remotely from the object. A data transmission device transfers the image data from the object to the center and the location data from the center to the object. The center processes the image data to determine a position from which the image was acquired, and stores, in a complementary database, data of the processed image to complement and/or to correct an initial database. The locating system implements a locating method for locating and transmitting the location data to a plurality of real environment objects.

Abstract: A method of searching for a scene based on a stream of images archived in a video surveillance database including: a first phase of preprocessing prior to archiving of the images including extracting generic information from the images of the stream, systematically annotating the scenes of the images by at least one indication defined as a function of the generic information, and indexing the scenes of the images based on information extracted from the indications originating from one or more streams; a second phase of investigation by preselecting video segments from the stream of images including the annotation indications associated with the images; and a third phase of searching for a particular scene based on at least one additional characteristic not forming part of the annotations associated with the preselected video segments.

Abstract: A method of searching for a scene based on a stream of images archived in a video surveillance database including: a first phase of preprocessing prior to archiving of the images including extracting generic information from the images of the stream, systematically annotating the scenes of the images by at least one indication defined as a function of the generic information, and indexing the scenes of the images based on information extracted from the indications originating from one or more streams; a second phase of investigation by preselecting video segments from the stream of images including the annotation indications associated with the images; and a third phase of searching for a particular scene based on at least one additional characteristic not forming part of the annotations associated with the preselected video segments.