Adaptive de-interlacing method and apparatus based on phase...

Television – Format conversion – Line doublers type

Reexamination Certificate

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C348S448000

Reexamination Certificate

active

10879724

ABSTRACT:
There is disclosed an adaptive de-interlacing method and apparatus based on a phase corrected field of an input interlaced picture signal, and a recording medium storing computer programs for executing the method. The method includes: generating a phase corrected kthfield by compensating a phase of the kthfield of the input interlaced picture signal by 1 line frequency; calculating a first motion vector between the phase corrected kthfield and the (k−1)thfield of the interlaced picture signal; calculating a second motion vector between the (k−1)thfield and the (k+1)thfield of the interlaced picture signal; and determining whether there is motion of the input picture based on the first and second motion vector values, and generating a kthprogressive frame based on the result and the kthfield. Thus, a serration phenomenon is minimized after de-interlacing by more exactly detecting the motion information of a corresponding inserted field.

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Renxiang Li, et al., “Reliable Motion Detection/Compensation for Interlaced Sequences and its Applications to Deinterlacing”, IEEE Transactions on Circuits and Sytems for Video Technology, vol. 10, No. 1, Feb. 2000.

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