System and method for multi-camera live video feed over a network

An internet user visits a web site and requests to see imagery from a specified one of a plurality of video cameras. At a system associated with the web site, a load distribution server assigns the user's request to one of a plurality of image servers. The assigned image server first checks its...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CHAMBERS DARIN EDWARD, WEINBERG MATT JONATHAN, PATTON DAVID CLAY
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An internet user visits a web site and requests to see imagery from a specified one of a plurality of video cameras. At a system associated with the web site, a load distribution server assigns the user's request to one of a plurality of image servers. The assigned image server first checks its local image cache to see whether a recent image from the specified camera is stored there. If so, the image from that local image cache is sent to the user. If the local image cache does not have a recent image from the requested camera, the assigned image server then checks its local request cache to see whether an earlier process has recently requested the same imagery. If so, then the assigned image server simply waits for the earlier process to compete instead of initiating its own new image retrieval request. If no earlier process has recently requested the same imagery, the assigned image server issues its own image retrieval request. Information in image and the request caches of each image server is replicated across all the image servers.