Patent ID: 6950558
Filing Date: 2005-09-27
Classification: G06T

Abstract:
1. An apparatus comprising: a determine pass logic having inputs coupled to receive significance state information for a region, a pass bit for each coefficient in a subset of the region, and a current pass indication, the determine pass logic to generate pass indications to indicate a pass for each coefficient in the subset of the region; selection logic having inputs coupled to signal output from the determine pass logic and the current pass indication to generate output indications associated with one pass of either the significance propagation, refinement, and cleanup passes; next coefficient logic coupled to the selection logic to indicate the next coefficient in the current pass in response to the output indications from selection logic; and a control coupled to receive the output indicating the next coefficient in the one pass, the control coding coefficients in the significance propagation, refinement and cleanup passes, including coding the next coefficient in either the significance propagation, refinement and cleanup passes as indicated by the next coefficient logic.