Patent ID: 6766063
Filing Date: 2004-07-20
Classification: G06T

Abstract:
A method for importing an image in a first color representation into digital nonlinear video editing system that uses images in a second subsampled color representation, comprising:detecting in a portion of the image in the first color representation a signature of an upsampling filter for generating an image in the first color representation from an image in the second subsampled color representation; if the signature is detected, decimating the portion of the image in the first color representation without filtering the portion of the image; and if the signature is not detected, filtering the portion of the image in the first color representation before decimating the portion of the image, wherein detecting comprises determining a measure of likelihood that an image in a first color representation was filtered using an upsampling filter used by a digital nonlinear video editing system to generate an image in the first color representation from an image in a second subsampled color representation, and wherein determining the measure of likelihood comprises: selecting a set of pixels in the image in the first color representation according to the second subsampled color representation; estimating a value for each of a plurality of pixels intermediate the selected pixels; and comparing the estimated value to an actual value for the plurality of pixels intermediate the selected pixels in the image in the first color representation.