Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1986-09-17
1988-06-28
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 37, H04N 978
Patent
active
047543221
ABSTRACT:
The present invention is for separating luminance signal Y and color difference signal C from the composite color television signal and includes a frame memory for storing the composite color television signal, a motion detector for detecting motion of a picture image on the basis of the signal read out from the frame memory, a correlation detector for detecting the magnitude of vertical correlation of pictures on the basis of the signal read out from the frame memory, a vertical-axis filter for performing YC-signal separation through a filtering operation in the vertical-axis direction, a time-axis filter for performing a filtering operation in the time-axis direction, a two-dimensional filter for performing YC-signal separation through a filtering operation in both the horizontal and vertical directions, and a mixer for mixing the outputs of the three filters in accordance with the magnitude of motion and the magnitude of vertical correlation.
REFERENCES:
patent: 4050084 (1977-09-01), Rossi
patent: 4179705 (1979-12-01), Faroudja
patent: 4389665 (1983-06-01), Nagao et al.
patent: 4626895 (1986-12-01), Reitmeier
patent: 4638351 (1987-01-01), Clarke
patent: 4656501 (1987-04-01), Casey et al.
"Extended Definition TV Fully Compatible w/Existing Standards", Fukinuki & Hirano, IEEE Transion Communications, vol. 32, No. 8, Aug. 1984.
"A Motion-Compensated Interframe Coding Scheme for Television Pictures", Ninomiya & Ohtsuka, IEEE Transion Communications, vol. 30, No. 1, Jan. 1982.
Katsumata Kenji
Nakagawa Isao
Okuda Akihide
Sugiyama Masato
Bauer Robert M.
Groody James J.
Hitachi , Ltd.
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