H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/01 (2006.01) H04N 5/46 (2006.01) H04N 7/00 (2006.01)
Patent
CA 2140746
In an Enhanced Definition Television (EDTV) system disclosed here, an assistance signal is transmitted to enable a suitably equipped re- ceiver (105) to choose from a number of predetermined deinterlacin modes. The modes represent interpolation options for estimating lines missing in a current interlaced image field, thereby enhancing the vertical resolution of a display. For example, five options may provide for as follows: (1) intra- frame linear interpolation, (2) use of information from a preceding frame, (3) use of information from a succeeding frame, (4) combining the results of (1) and (2) and (5) combining the results of (1) and (3). Preferably, inter- polation options are derived on a block basis and transmitted with coded motion vectors which may be compressed to make maximum use of the available bandwidth. The assistance signal may be transmitted within the vertical and/or horizontal blanking intervals of an interlaced television broadcast.
Anastassiou Dimitris
Jensen Daryl Kristian
Ridout & Maybee Llp
The Trustees Of Columbia University In The City Of New York
LandOfFree
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