Projector having corresponding lens shift and sub-pixel mapping elements
AssigneeSeiko Epson Corporation
InventorsTakumi Aragaki, Hiroshi Hasegawa
Life of this patent
Estimating the term…
Abstract
Embodiments include an image processing device having a lens-shift amount acquisition section adapted to acquire an amount of shift of a projection lens of an image display apparatus, and an image signal correction section adapted to correct the image signal corresponding to a sub-pixel of a pixel in accordance with the amount of shift acquired by the lens-shift amount acquisition section to correct displacement of the sub-pixel relative to another sub-pixel of the pixel due to the lens-shift.
Claims13
An image processing device comprising:
- an image display apparatus that displays a first color component image and a second color component image such that the first color component image and the second color component image overlap each other;
- a lens-shift amount acquisition section adapted to acquire an amount of shift of a projection lens of an image display apparatus;
- an image signal correction section adapted to correct the image signal corresponding to a sub-pixel of a pixel in accordance with the amount of shift acquired by the lens-shift amount acquisition section to correct displacement of the sub-pixel relative to another sub-pixel of the pixel due to the lens-shift;
- and
- a non-transitory computer readable memory storing a program enabling the lens-shift amount acquisition section to acquire the amount of shift, and the image signal correction section to correct the image signal, wherein
- the amount of shift acquired by the lens-shift amount acquisition section corresponds to a displacement of the first color component image relative to the second color component image due to the lens-shift.
An image display apparatus that displays a first color component image and a second color component image such that the first color component image and the second color component image overlap each other, the image display apparatus comprising:
- a projection lens;
- a lens-shift amount acquisition section adapted to acquire an amount of shift of the projection lens;
- an image signal correction section adapted to correct the image signal corresponding to a sub-pixel of a pixel in accordance with the amount of shift acquired by the lens-shift amount acquisition section to correct displacement of the sub-pixel relative to another sub-pixel of the pixel due to the lens-shift;
- an image display section adapted to display an image based on the corrected image signal of the sub-pixel;
- and
- a non-transitory computer readable memory storing a program enabling the lens-shift amount acquisition section to acquire the amount of shift, the image signal correction section to correct the image signal, and the image display section to display an image, wherein
- the amount of shift acquired by the lens-shift amount acquisition section corresponds to a displacement of the first color component image relative to the second color component image due to the lens-shift.
A non-transitory computer readable medium storing a program that causes a projector to execute a image processing method adapted to correct an image signal designating an amount of modulation of a passing light beam of a lens of an image display apparatus having a lens shift function, the image processing method comprising:
- displaying a first color component image and a second color component image such that the first color component image and the second color component image overlap each other;
- acquiring an amount of shift of the lens such that the amount of shift of the lens corresponds to a displacement of the first color component image relative to the second color component image due to the lens-shift;
- and
- correcting the image signal corresponding to a sub-pixel of a pixel in accordance with the amount of shift acquired in the acquiring step to correct displacement of the sub-pixel relative to another sub-pixel of the pixel due to the lens-shift.
Dependencies are inferred from the claim text.