Projected image correction method and projector
AssigneeSeiko Epson Corporation
InventorsYukihiro Nashida, Miki Nagano, Yasutaka Kamiya, Akira Takei, Norihiro Yoshikuni
Life of this patent
Estimating the term…
Abstract
The present invention executes a projected image correction method and a projector that can execute keystone correction of larger amount without modifying or replacing a keystone correction device. A projector according to the invention includes a signal scale down device that scales down image signals that are input, a keystone correction device that executes keystone correction for the scaled down image signals, a buffer that temporarily stores the image signals for keystone correction, and a signal interpolation device that interpolates the corrected image signals.
Claims15
A projected image correction method, comprising:
- scaling down image signals that are input;
- executing keystone correction for scaled down image signals;
- and
- interpolating corrected image signals.
A projector, comprising:
- a device to scale down image signals that are input;
- a device to execute keystone correction for scaled down image signals;
- a device to temporarily store the image signals for keystone correction;
- and
- a device to interpolate corrected image signals.
Dependencies are inferred from the claim text.