Input device and image processing method thereof
AssigneeLG Electronics Inc.
InventorsMinwoo KIM, Jungyong LEE
Life of this patent
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Abstract
Provided are an input device and an image processing method thereof. The image processing method of the input device having a scan function includes acquiring a first image frame and a second image frame to detect coordinates of the acquired first image frame and coordinates of the acquired second image frame; dividing an overlap region between the first image frame and the second image frame into a plurality of sub overlap regions by using the detected coordinates of the first and second image frames; dividing each of the sub overlap regions into unit regions; setting a reference feature point of a plurality of feature points within the divided unit regions; and extracting corresponding points by using the set reference feature point.
Claims20
An image processing method of an input device having a scan function, the image processing method comprising:
- acquiring a first image frame and a second image frame to detect coordinates of the acquired first image frame and coordinates of the acquired second image frame;
- dividing an overlap region between the first image frame and the second image frame into a plurality of sub overlap regions by using the detected coordinates of the first and second image frames;
- dividing each of the sub overlap regions into unit regions;
- setting a reference feature point of a plurality of feature points within the divided unit regions;
- and
- extracting corresponding points by using the set reference feature point.
An input device having a scan function, the input device comprising:
- a scanning unit acquiring a first image frame and a second image frame;
- a coordinate detection unit detecting coordinates of the acquired first image frame and coordinates of the acquired second image frame;
- a region division unit dividing an overlap region between the first image frame and the second image frame into a plurality of sub overlap regions by using the detected coordinates of the first and second image frames, the region division unit dividing each of the sub overlap regions into unit regions;
- a reference feature point setting unit setting a reference feature point of a plurality of feature points within the divided unit regions;
- and
- a corresponding point extraction unit extracting corresponding points by using the set reference feature point.
Dependencies are inferred from the claim text.