Patent ID: 7554610

Claim:
A method of detecting color-crossing error in a decoded video signal having a plurality of fields using a color-crossing error detecting unit, the method comprising: detecting a color-crossing pattern using the color-crossing error detecting unit in a set of corresponding pixels sharing a pixel location, wherein each pixel in the set of corresponding pixels comes from a different field of a set of fields, wherein the set of corresponding pixels includes a current pixel from a current field, wherein the color-crossing pattern is expressed in a set of sequentially ordered sub-patterns; and wherein the detecting a color-crossing pattern in a set of corresponding pixels sharing a pixel location further comprises determining whether a first subset of corresponding pixels from the set of corresponding pixels matches any sub-pattern in the set of sequentially ordered sub-patterns; and determining that color-crossing error exists at the current pixel if the color-crossing pattern exists for a color-crossing threshold number of sequential fields of the same field type at the pixel location.