Fingertip detection method based on proportion of chord to triangular edge
The invention discloses a fingertip detection method based on the proportion of a chord to a triangular edge. The fingertip detection method comprises steps of 1, collecting a hand image; 2, performing preprocessing and image segmentation on the hand image to obtain a hand contour; step 3, aiming at...
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| creator | WANG YIHONG CHEN LINGE |
| description | The invention discloses a fingertip detection method based on the proportion of a chord to a triangular edge. The fingertip detection method comprises steps of 1, collecting a hand image; 2, performing preprocessing and image segmentation on the hand image to obtain a hand contour; step 3, aiming at each point to be measured; selecting two points at the front and rear positions; recording the positions of the two points; connecting two points at the front and rear positions of the to-be-measured point; dividing the length of the connecting line of the front point and the rear point of the to-be-detected point by the sum of the lengths of the connecting lines of the front point and the rear point of the to-be-detected point to obtain a ratio of 0-1, setting a fingertip-like curvature threshold, comparing the ratio with the fingertip-like curvature threshold, and detecting a fingertip-like point. The method is advantaged in that a fingertip is detected by adopting a chord and triangularedge proportion method, d |
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The fingertip detection method comprises steps of 1, collecting a hand image; 2, performing preprocessing and image segmentation on the hand image to obtain a hand contour; step 3, aiming at each point to be measured; selecting two points at the front and rear positions; recording the positions of the two points; connecting two points at the front and rear positions of the to-be-measured point; dividing the length of the connecting line of the front point and the rear point of the to-be-detected point by the sum of the lengths of the connecting lines of the front point and the rear point of the to-be-detected point to obtain a ratio of 0-1, setting a fingertip-like curvature threshold, comparing the ratio with the fingertip-like curvature threshold, and detecting a fingertip-like point. 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| language | chi ; eng |
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| subjects | CALCULATING COMPUTING COUNTING HANDLING RECORD CARRIERS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS |
| title | Fingertip detection method based on proportion of chord to triangular edge |
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