Network and image area attribute discriminating device and method for use with said neural network
US5884296A · kind A · utility
16Cited by
18References
16Claims
0Family size
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Key dates
| Filing date | Mar 11, 1996 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Mar 11, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20084
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for discriminating an attribute of an image in a block area contained in a document image includes a device for performing a Fourier transformation based on image data in the block area and for determining a spatial frequency spectrum relating to the image in the block area; and a neural network for outputting a discrimination result as to whether or not the attribute of the image in the block area is a halftone dot image based on the spatial frequency spectrum output from the Fourier transform device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.