| 摘要 |
PROBLEM TO BE SOLVED: To obtain reinforcement arrangement information simply and accurately. SOLUTION: A portable terminal 4 acquires an image of modified reinforcements with a background bar as a background, a camera focus distance, a reference length in markers and a distance between markers (S802), and corrects and binarizes the image (S803). Next, an angleθformed by a main reinforcement and a vertical line and an angleϕformed by a background bar and a horizontal line are measured from the binarized image (S804). Subsequently, the original image is rotated by -ϕso as to set the background bar to be horizontal (S805). Then, an image only including the background bar portion is extracted (S806), and the maximum pixel number along the background bar of the markers is counted (S807). Moreover, the distances from a camera to the markers and the background bar are measured (S808) and the diameter in each reinforcement is estimated (S809). COPYRIGHT: (C)2012,JPO&INPIT |
