Patent ID: 8437561
Filing Date: 2013-05-07
Classification: H04N

Abstract:
1. A method, comprising: receiving signal data at a base layer, a first enhancement layer, and a second enhancement layer; encoding the signal data at the base layer to provide to the first enhancement layer base layer information indicative of a base layer approximation of the signal data by using a first signal prediction derived at the base layer, the base layer information comprising base layer compression parameters employed in the base layer; encoding the signal data at the first enhancement layer to provide to the second enhancement layer first enhancement layer information indicative of a first enhancement layer signal approximation of the signal data by using a second signal prediction derived from a combination of the base layer information and a delayed enhancement layer reconstructed frame produced at the first enhancement layer, the first enhancement layer information comprising compression parameters employed in the first enhancement layer; and encoding the signal data at the second enhancement layer by combining the first enhancement layer information with second enhancement layer information indicative of a second enhancement layer signal approximation of the signal to provide a third signal prediction.