Method and computer program for providing visual information to a viewer

摘要

The present invention relates to video transmission systems and provides a method of providing visual information to a viewer, comprising the steps of: (a) receiving at a receiver, a stream of video data transmitted from a video camera; (b) receiving and monitoring the stream at a server connected to the receiver; (c) transmitting the stream from the server to one or more remote viewers over a communications network; and (d) transmitting a snapshot image to one or more remote viewers in response to the detection of a characteristic in the stream. The invention finds application in areas such as the online presentation and sale of goods and services.