A method and arrangement for detecting a picture repetition mode of film material
with a series of consecutive fields, the arrangement having a processor and a memory
(M), the processor identifying a plurality of different objects within the consecutive
fields using a segmentation method, an object being defined as an image portion
of the consecutive fields that can be described with a single motion model; and
carrying out the following steps for each one of the plurality of objects, i.e.,
establishing a motion parameter pattern for each one of the objects within the
consecutive fields; comparing the motion parameter pattern with a number of predetermined
motion parameter patterns; and determining the picture repetition mode for each
one of the objects using the result of the preceding step.