Pulldown-sequence detecting device, method of detecting pulldown sequence, and computer program product

摘要

A pulldown-sequence detecting device includes a determining unit that performs motion determination on every pixel by comparing a field of an interlace image input into the device with a field of the preceding frame stored in a field memory, a calculating unit that calculates a difference between the features of the portions determined as having some movement by the determining unit and the corresponding portions of the immediately preceding field stored in another field memory, and a detecting unit that detects a pulldown sequence on the basis of the variation pattern of the inter-field feature differences calculated by the calculating unit.