| 摘要 |
PURPOSE:To make high a speed of calculation of an inertia moment without usig high-speed CPU by a method wherein an orthogonal projection binary image of a three-dimentional object inputted from an image input device is stored in a block memory by successive (n) pieces of points, and the data of this image are scanned in linear sequence. CONSTITUTION:Two kinds of block memories storing (n) bits in each address in the longitudinal and lateral directions are contained in a block memory 102, and thereby scanning of a binary image is executed at high speed. By this scanning, an area count value in each one line is calculated by an area calculating unit 103 and stored in a storage unit 105, and simultaneously with the scanning performed when an area is calculated, a partial value in each one line of an inertia moment value is calculated by an inertia moment calculating unit 104 and stored in a storage unit 106. The data stored in the storage units 105 and 106 are subjected to operation processing in an inertia moment operating unit 107, and thereby directional axes are calculated. |
