Degree of cleaning decision manner null of aluminum temporary foothold

摘要

PROBLEM TO BE SOLVED: To make it possible to efficiently inspect quantitatively whether or not an aluminum alloy scaffolding board is washed. ;SOLUTION: A picture of an aluminum alloy scaffolding board 1 shot by a video camera 10 is taken in a picture input section 21, binary treatment is made with a personal computer 22 to extract parts of holes 3 from the whole scaffolding board 1, and area Sa for the parts of the holes 3 is calculated. Then, for a part except the holes 3, binary treatment is made with the personal computer 22 to extract a concrete elimination part, and area Sb for the concrete elimination part is calculated. Area Sa for the parts of holes and area Sb for the concrete elimination part calculated in accordance with above and overall area Sc for the picture are used to calculate a concrete elimination rate C, and washing quality can be decided according to the size.;COPYRIGHT: (C)1997,JPO