Television – Format conversion – Line doublers type
Reexamination Certificate
2007-05-15
2007-05-15
Yenke, Brian P. (Department: 2622)
Television
Format conversion
Line doublers type
C348S452000, C348S458000, C348S700000, C382S300000
Reexamination Certificate
active
10492696
ABSTRACT:
Errors in interpolation when using diagonal interpolation can be reduced, thereby high-quality intra-field interpolation can be achieved. A further upper data line (41) and an upper data line (42) are inputted into an upper diagonal correlation detection portion (21), and the upper data line (42) and a lower data line (43) are inputted into a lower diagonal correlation detection portion (22). The lower diagonal correlation detection portion (22) determines correlation of pixels on actual data lines above and below an interpolation point in a left diagonal direction, a central direction and a right diagonal direction around the interpolation point. The upper diagonal correlation detection portion (21) determines correlation of pixels on actual data lines above and below an auxiliary interpolation point, which is secondarily set, in a left diagonal direction, a central direction and a right diagonal direction around, for example, the auxiliary interpolation point. On the basis of the determination results, a direction having a strong correlation is detected to produce interpolation data by using pixels in the interpolation direction.
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Frommer William S.
Frommer & Lawrence & Haug LLP
Sony Corporation
Yenke Brian P.
LandOfFree
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