Method and apparatus for interpolating image
AssigneeSamsung Electronics Co., Ltd.
InventorsDong-hyuk SHIN, Seung-hoon HAN, Dae-hyun KIM
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Abstract
Provided are a method and apparatus for interpolating an image, that improve frequency characteristics of a motion compensated interpolation by combining motion compensation and a de-blurring filter. The image interpolation method includes: estimating a motion vector between adjacent frames; determining a location of a pixel that is to be interpolated between adjacent frames based on the estimated motion vector; selecting values of candidate pixels of the location of the pixel that is to be interpolated; and filtering the values of the candidate pixels by applying each filter coefficient according to locations of pixels to the values of the candidate pixels.
Claims15
An image interpolation method comprising:
- estimating a motion vector between adjacent frames;
- determining a location of a pixel that is to be interpolated between adjacent frames based on the estimated motion vector;
- selecting values of candidate pixels in accordance with the location of the pixel that is to be interpolated;
- and
- filtering the values of the candidate pixels by applying each filter coefficient according to locations of pixels to the values of the candidate pixels.
An image interpolation apparatus comprising:
- a motion estimation unit estimating a motion vector that is to be applied to an interpolation frame by backward or forward matching a block between a previous frame and a next frame;
- a candidate pixel selection unit determining a location of a pixel that is to be interpolated between adjacent frames based on the motion vector estimated by the motion estimation unit, and selecting values of candidate pixels of the location of the pixel that is to be interpolated;
- a motion compensation filter bank unit storing each filter coefficient according to locations of pixels;
- and
- a motion compensation unit filtering the values of the candidate pixels selected by the candidate pixel selection unit by applying each filter coefficient according to locations of pixels thereto.
A computer readable recording medium having recorded thereon a program for executing the image interpolation method, the method comprising:
- estimating a motion vector between adjacent frames;
- determining a location of a pixel that is to be interpolated between adjacent frames based on the estimated motion vector;
- selecting values of candidate pixels of the location of the pixel that is to be interpolated;
- and
- filtering the values of the candidate pixels by applying each filter coefficient according to locations of pixels to the values of the candidate pixels.
Dependencies are inferred from the claim text.