Patent ID: 7336837
Filing Date: 2008-02-26
Classification: H04N

Abstract:
1. A method of decoding video data in a plurality of passes, the video data having a plurality of components each component including a plurality of coefficients, the method comprising: determining whether there is a non-zero coefficient to decode for a first component in a first pass; if there is a non-zero coefficient to decode for the first component in the first pass, decoding the non-zero coefficient for the first component in the first pass; if there is not a non-zero coefficient to decode for the first component in the first pass, determining whether there is a non-zero coefficient to decode for the first component in a second pass; if there is a non-zero coefficient to decode for the first component in the second pass, decoding the non-zero coefficient for the first component in the second pass determining whether there is a non-zero coefficient to decode for a second component in the first pass; if there is a non-zero coefficient to decode for the second component in the first pass, decoding the non-zero coefficient for the second component in the first pass; if there is not a non-zero coefficient to decode for the second component in the first pass, determining whether there is a non-zero coefficient to decode for the second component in the second pass; if there is a non-zero coefficient to decode for the second component in the second pass, decoding the non-zero coefficient for the second component in the second pass.