Title:
TWO-DIMENSIONAL DATA INTERPOLATING SYSTEM
Document Type and Number:
WIPO Patent Application WO/1999/064988
Kind Code:
A1
Abstract:
A two-dimensional data interpolating system in which the amount of calculation is small and few errors are produced. A data processor includes a discrete value extracting unit (10), an X-direction sampling function calculating unit (20), an X-direction convolution unit (30), Y-direction sampling function calculating unit (40), and an X-direction convoluting unit (50). The discrete value extracting unit (10) extracts data on pixels contained in a predetermined area around a point concerned to be subjected to interpolation. The X-direction sampling function calculating unit (20) and X-direction convoluting unit (30) calculate interpolation values (X-direction interpolation values) by using a sampling function differentiatable only once over the whole region and having finite values based on the data on pixels whose Y coordinates are the same. The Y-direction sampling function calculating unit (40) and Y-direction convolution calculating unit (50) calculate the interpolation values corresponding to the point concerned by using the sampling function based on the X-direction interpolation values.
Inventors:
TORAICHI KAZUO (JP)
WADA KOUICHI (JP)
WADA KOUICHI (JP)
Application Number:
PCT/JP1999/003044
Publication Date:
December 16, 1999
Filing Date:
June 08, 1999
Export Citation:
Assignee:
FLUENCY RESEARCH & DEV CO LTD (JP)
TORAICHI KAZUO (JP)
WADA KOUICHI (JP)
TORAICHI KAZUO (JP)
WADA KOUICHI (JP)
International Classes:
G06F17/17; G06T3/40; (IPC1-7): G06T3/40; G06F17/13
Foreign References:
| JPH04354068A | 1992-12-08 | |||
| JPH04330858A | 1992-11-18 |
Attorney, Agent or Firm:
Amagai, Masahiko (2nd floor 8-15, Kitashinjuku 1-chome Shinjuku-ku Tokyo, JP)
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