IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD
First Claim
1. An image processing apparatus for generating, from one frame image, first to Nth (N≧
- 2) sub-frame images for N×
-speed driving display, the apparatus comprising;
an input unit configured to input a frame image;
a generation unit configured to generate, from the frame image, first to Nth intermediate images;
a holding unit configured to hold first to Nth sub-filters that have been generated by dividing an original filter, and relative position information of pixels referred to by each of the sub-filters;
a collection unit configured to collect pixel values of pixels in an ith intermediate image (1≦
i≦
N), the pixels being at relative positions indicated by the relative position information for an ith sub-filter with respect to a pixel of interest in the ith intermediate image; and
a calculation unit configured to create the N sub-frame images by obtaining a pixel value of the pixel of interest in an ith sub-frame image from a calculation value obtained using the ith sub-filter with respect to the pixel values collected by the collection unit,wherein an average value of pixel values of a pixel in the N sub-frame images is the same as a value of that pixel obtained using the original filter with respect to the frame image.
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Accused Products
Abstract
There is provided an image processing apparatus comprising: an input unit configured to input a frame image; a generation unit configured to generate, from the frame image, first to Nth intermediate images; a holding unit configured to hold first to Nth sub-filters that have been generated by dividing an original filter, and relative position information of pixels referred to by each of the sub-filters; a collection unit configured to collect pixel values of pixels in an ith intermediate image (1≦i≦N); and a calculation unit configured to create the N sub-frame images by obtaining a pixel value of the pixel of interest in an ith sub-frame image from a calculation value obtained using the ith sub-filter with respect to the pixel values collected by the collection unit.
24 Citations
5 Claims
-
1. An image processing apparatus for generating, from one frame image, first to Nth (N≧
- 2) sub-frame images for N×
-speed driving display, the apparatus comprising;an input unit configured to input a frame image; a generation unit configured to generate, from the frame image, first to Nth intermediate images; a holding unit configured to hold first to Nth sub-filters that have been generated by dividing an original filter, and relative position information of pixels referred to by each of the sub-filters; a collection unit configured to collect pixel values of pixels in an ith intermediate image (1≦
i≦
N), the pixels being at relative positions indicated by the relative position information for an ith sub-filter with respect to a pixel of interest in the ith intermediate image; anda calculation unit configured to create the N sub-frame images by obtaining a pixel value of the pixel of interest in an ith sub-frame image from a calculation value obtained using the ith sub-filter with respect to the pixel values collected by the collection unit, wherein an average value of pixel values of a pixel in the N sub-frame images is the same as a value of that pixel obtained using the original filter with respect to the frame image. - View Dependent Claims (3, 4)
- 2) sub-frame images for N×
-
2. An image processing apparatus for generating, from one frame image, first to Nth (N≧
- 2) sub-frame images for X×
-speed driving display, the apparatus comprising;an input unit configured to input a frame image; a generation unit configured to generate, from the frame image, first to Nth intermediate images by referring to two successive frame images and performing interpolation processing; a holding unit configured to hold first to Nth sub-filters that have been generated by dividing an original filter, and relative position information of pixels referred to by each of the sub-filters; a collection unit configured to collect pixel values of pixels in an ith intermediate image (1≦
i≦
N), the pixels being at relative positions indicated by the relative position information for an ith sub-filter with respect to a pixel of interest in the ith intermediate image;a determination unit configured to determine whether a pixel value of a pixel in neighborhood of a pixel of interest in each of the intermediate images is the same for the N intermediate images; and a calculation unit configured to create the N sub-frame images by obtaining a pixel value of the pixel of interest in an ith sub-frame image from a calculation value obtained using the ith sub-filter with respect to the pixel values collected by the collection unit, wherein the calculation unit is further configured to perform calculation using the ith sub-filter with respect to the pixel values collected by the collection unit if the determination unit determines that the pixel values are the same, and acquires, if the determination unit determines that the pixel values are not the same, pixel values of the pixel of interest in the sub-frame images by performing calculation using a filter other than the sub-filters with respect to the pixel values of the pixel in the neighborhood of the pixel of interest in the intermediate images, and an average value of the pixel values of the pixel of interest in the N sub-frame images that have been calculated by the calculation unit using the sub-filters is the same as a value obtained using the original filter with respect to a pixel value of a pixel in neighborhood of a pixel of interest in the frame image.
- 2) sub-frame images for X×
-
5. An image processing method for generating, from one frame image, first to Nth (N≧
- 2) sub-frame images for N×
-speed driving display, the method comprising the steps of;inputting a frame image; generating, from the frame image, first to Nth intermediate images; holding first to Nth sub-filters that have been generated by dividing an original filter, and relative position information of pixels referred to by each of the sub-filters; collecting pixel values of pixels in an ith intermediate image (1≦
i≦
N), the pixels being at relative positions indicated by the relative position information for an ith sub-filter with respect to a pixel of interest in the ith intermediate image; andcreating the N sub-frame images by obtaining a pixel value of the pixel of interest in an ith sub-frame image from a calculation value obtained using the ith sub-filter with respect to the pixel values collected by the collection unit, wherein an average value of pixel values of a pixel in the N sub-frame images is the same as a value of that pixel obtained using the original filter with respect to the frame image.
- 2) sub-frame images for N×
Specification