U.S. Philips Corporation

Stefano Tono

Daniele Bagni

The invention relates to a low/very low bitrate video coding method fully compatible with the H.263 standard includes a first forward coding step, a second backwards prediction step, and a third decision step including a selection sub-step between intra and inter coding modes. This decision step controls in the intra coding mode a down-conversion filtering sub-step, carried out at the beginning of the coding step and allowing to code and transmit original intra pictures with a lower resolution, and a corresponding up-conversion filtering sub-step, carried out in the prediction step. In the receiving terminal, the decoder recognizes the reduced format of the pictures and up-scales them.

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Ponte S. Nicolo, Italy

Stefano Tono