Motion object video on film detection and adaptive de-interlace method based on fuzzy logic
AssigneePixelworks, Inc.
InventorsLei He, Hongmin Zhang
Life of this patent
Estimating the term…
Abstract
A method and system for performing fuzzy logic based de-interlacing on film source fields that might be mixed with video on film. An embodiment of the invention comprises an adaptive de-interlacer by weighing between merge operation and interpolation operation in the case of occurring video on film motion object. A weighing factor is generated from video on film pattern based on fuzzy logic inference rules. This weighing factor specifies the weighting between merging and interpolating in assigning the pixel values of the progressive display output.
Claims19
A computer-implemented method, comprising:
- assessing a likelihood of having a video on film (VOF) object edge along one of n pre-defined directions, the assessing comprising:
- generating n sets of reference quantities, wherein each reference quantity is associated with a corresponding one of n pre-defined directions;
- and
- generating two additional reference quantities R[1] and R[2] by applying classical logic to the n sets of reference quantities;
- determining a weighting factor k by analyzing R[1] and R[2] using fuzzy logic interference rules;
- and
- performing de-interlacing at a current processing pixel based at least in part on the weighting factor k.
A computer-implemented method, comprising:
- storing within each of a plurality of buffers a corresponding one of a plurality of video fields;
- receiving at an interpolation unit the plurality of video fields stored within the plurality of buffers;
- generating a weighting factor, wherein the weighting factor represents an assessed likelihood of having a video on film object edge through a current processing pixel of the plurality of video fields.
A computer-implemented method, comprising:
- determining an ability of multiple de-interlacing operations to de-interlace image field data using fuzzy logic, wherein the image field data comprises a pixel within an image field;
- de-interlacing the image field data according to the fuzzy logic determination;
- determining a coefficient according to at least one fuzzy logic inference rule;
- and
- blending the de-interlaced image field data from the multiple de-interlacing operations according to the fuzzy logic determination and according to the coefficient.
Dependencies are inferred from the claim text.