IMAGE-BASED HAND DETECTION APPARATUS AND METHOD
First Claim
1. An image-based hand detection apparatus, comprisinga hand image detection unit for detecting a hand image corresponding to a shape of a hand clenched to form a fist from an image input from a camera;
- a feature point extraction unit for extracting feature points from an area, having lower brightness than a reference value, in the hand image detected by the hand image detection unit;
an image rotation unit for comparing the feature points of the detected hand image with feature points of hand images stored in a hand image storage unit, and then rotating the detected hand image or the stored hand images;
a matching unit for comparing the detected hand image with the stored hand images and then generating a result of the comparison; and
a hand shape recognition unit for, if at least one of the stored hand images is matched with the detected hand image as the result of the comparison by the matching unit, selecting the at least one of the stored hand images as a matching hand image.
1 Assignment
0 Petitions
Accused Products
Abstract
An image-based hand detection apparatus includes a hand image detection unit for detecting a hand image corresponding to a shape of a hand clenched to form a fist from an image input. A feature point extraction unit extracts feature points from an area, having lower brightness than a reference value, in the detected hand image. An image rotation unit compares the feature points of the detected hand image with feature points of hand images stored in a hand image storage unit, and rotates the detected hand image or the stored hand images. A matching unit compares the detected hand image with the stored hand images and generates a result of the comparison. If at least one of the stored hand images is matched with the detected hand image, a hand shape recognition unit selects the at least one of the stored hand images as a matching hand image.
42 Citations
18 Claims
-
1. An image-based hand detection apparatus, comprising
a hand image detection unit for detecting a hand image corresponding to a shape of a hand clenched to form a fist from an image input from a camera; -
a feature point extraction unit for extracting feature points from an area, having lower brightness than a reference value, in the hand image detected by the hand image detection unit; an image rotation unit for comparing the feature points of the detected hand image with feature points of hand images stored in a hand image storage unit, and then rotating the detected hand image or the stored hand images; a matching unit for comparing the detected hand image with the stored hand images and then generating a result of the comparison; and a hand shape recognition unit for, if at least one of the stored hand images is matched with the detected hand image as the result of the comparison by the matching unit, selecting the at least one of the stored hand images as a matching hand image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An image-based hand detection method, comprising:
-
detecting a hand image corresponding to a shape of a hand clenched to form a fist from an image input from a camera, and generating a detected hand image; extracting feature points from an area, having lower brightness than a reference value, in the detected hand image; comparing the feature points of the detected hand image with feature points of hand images stored in a hand image storage unit to rotate the detected hand image or the stored hand images, and comparing the detected hand image with the stored hand images to generate a result of the comparison; and if at least one of the stored hand images is matched with the detected hand image as the result of the comparison, selecting the at least one of the stored hand images as a matching hand image. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
Specification