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Optical granulometry is the process of measuring the different grain sizes in a granular material,〔(Definition of granularity ) at GEMET〕 based on a photograph. Technology has been created to analyze a photograph and create statistics based on what the picture portrays. This information is vital in maintaining machinery in various trades worldwide. Mining companies can use optical granulometry to analyze inactive or moving rock to quantify the size of these fragments.〔(Franklin and Katsabanis 1996), page 68〕 Forestry companies can zero in on wood chip sizes without stopping the production process, and minimize sizing errors.〔(Franklin and Katsabanis 1996), page 47〕 With more photoanalysis technologies being produced, mining companies have shown an increased interest in these types of systems because of their ability to maintain efficiency throughout the mining process.〔(Franklin and Katsabanis 1996), page 258〕 Companies are saving millions of dollars annually because of this new technology, and are cutting back on maintenance costs on equipment. In order for optical granulometry to be completely successful, an accurate photo must be taken – under sufficient lighting, and using proper technology – to obtain quantified results.〔(Franklin and Katsabanis 1996), page 115〕 If these requirements are met, an image analysis system can be implemented. ==The process== Software uses four basic steps in determining the average size of material: See the Wikipedia article on Photoanalysis to see how mining, forestry and agricultural companies are using this technology to improve quality control techniques. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Optical granulometry」の詳細全文を読む スポンサード リンク
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