| 摘要 |
A portable electronic device comprises a video camera for capturing a sequence of video images, an image processor operable to compress a first region of a current video image to a first extent and a second region of the current video image to a second, greater, extent to generate a processed current video image, a network communications interface operable to send processed video images to a server, and to receive control data from the server, and the image processor is operable to augment the current video image with one or more computer graphic elements; in which control data received from the server comprises image region information indicating a region of a video image estimated to comprise a predetermined marker and optionally augmentation instructions, and the image processor is operable to define the first region of the current video image responsive to the image region information from the server. |
