Abstract: A method for making uniform the colorimetric rendering of a display surface including several adjacent display screens (10a, 10b), comprising for each pair of adjacent screens (10a, 10b) steps of: periodically sampling (21) by a calculation device (5) image data in two corresponding screen (10a, 10b) areas (13a, 13b) in the pair of adjacent screens, analyzing (22, 23, 24) by the calculation device (5) image data sampled in each period to determine a difference in calorimetric rendering between the two screen areas, determining by a correction device (6) connected to the calculation device a process to be applied to the video stream to one of the two video systems controlling the two screens in the pair of adjacent screens, by applying a predetermined correction law to the difference in calorimetric rendering, and applying (26) by the correction device the process to said video system, in order to make the colorimetric rendering of the display surface uniform.

Abstract: A method for making uniform the colorimetric rendering of a display surface including several adjacent display screens (10a, 10b), comprising for each pair of adjacent screens (10a, 10b) steps of: periodically sampling (21) by a calculation device (5) image data in two corresponding screen (10a, 10b) areas (13a, 13b) in the pair of adjacent screens, analyzing (22, 23, 24) by the calculation device (5) image data sampled in each period to determine a difference in calorimetric rendering between the two screen areas, determining by a correction device (6) connected to the calculation device a process to be applied to the video stream to one of the two video systems controlling the two screens in the pair of adjacent screens, by applying a predetermined correction law to the difference in calorimetric rendering, and applying (26) by the correction device the process to said video system, in order to make the colorimetric rendering of the display surface uniform.

Abstract: A method for making uniform the colorimetric rendering of a display surface including several adjacent display screens (10a, 10b), comprising for each pair of adjacent screens (10a, 10b) steps of: periodically sampling (21) by a calculation device (5) image data in two corresponding screen (10a, 10b) areas (13a, 13b) in the pair of adjacent screens, analyzing (22, 23, 24) by the calculation device (5) image data sampled in each period to determine a difference in calorimetric rendering between the two screen areas, determining by a correction device (6) connected to the calculation device a process to be applied to the video stream to one of the two video systems controlling the two screens in the pair of adjacent screens, by applying a predetermined correction law to the difference in calorimetric rendering, and applying (26) by the correction device the process to said video system, in order to make the calorimetric rendering of the display surface uniform.

Abstract: An audio-visual system is provided for bringing together a local scene and a remote scene. The audio-visual system includes several concatenated audio-visual modules, and feedback control and control means between the various modules. Each audio-visual module comprises an image sensing device and a sound pickup device of the local scene, and an image and sound recovery device of the remote scene in an image plane. The audio-visual modules are connected to a transmission network. The feedback control and control means ensures image and sound quality continuity on the image plane when the people being filmed or recorded pass in front of the various image and sound pickup devices of the scene concerned.

Abstract: The invention concerns an audio-visual system interactive between a local scene and a remote scene. It comprises: a system for filming the local scene including several shooting devices (1) each provided with a field of view (?), means for arranging (13) said shooting devices so that the field of view of one shooting device should be adjacent to the next shooting device field of view and means for simultaneously controlling (14) the shots, and a system for restoring the image of the remote scene comprising at least a restoring device itself including a display screen whereon the image of the remote scene is formed.

Abstract: A method for making uniform the colorimetric rendering of a display surface including several adjacent display screens (10a, 10b), comprising for each pair of adjacent screens (10a, 10b) steps of: periodically sampling (21) by a calculation device (5) image data in two corresponding screen (10a, 10b) areas (13a, 13b) in the pair of adjacent screens, analyzing (22, 23, 24) by the calculation device (5) image data sampled in each period to determine a difference in calorimetric rendering between the two screen areas, determining by a correction device (6) connected to the calculation device a process to be applied to the video stream to one of the two video systems controlling the two screens in the pair of adjacent screens, by applying a predetermined correction law to the difference in calorimetric rendering, and applying (26) by the correction device the process to said video system, in order to make the calorimetric rendering of the display surface uniform.

Abstract: The invention concerns a modular audio-visual system to bring together a local scene and a remote scene. The invention is characterized in that the system comprises: several concatenated audio-visual modules (M1, M2, M3), each module including an image sensing device and a sound pickup device for the local scene and, a device for restoring the image and the sound of the remote scene in an image plane (I), the modules being connected to a transmission network; automatic control and monitoring means (P) between the various modules to ensure continuity of the quality of the image and the sound on the image plane, when the people being filmed and recorded pass in front of the various image and sound pickup devices of the scene concerned.

Abstract: The invention concerns an audio-visual system interactive between a local scene and a remote scene. It comprises: a system for filming the local scene including several shooting devices (1) each provided with a field of view (&agr;), means for arranging (13) said shooting devices so that the field of view of one shooting device should be adjacent to the next shooting device field of view and means for simultaneously controlling (14) the shots, and a system for restoring the image of the remote scene comprising at least a restoring device itself including a display screen whereon the image of the remote scene is formed.