Fundamental Experiments on Stereoscopic Photogrammetry by Using the Ube Technical College Picture Information Processing System, U-PIPS.
Year: 1985
Type: article
Abstract: The authors are studying the analysis of color airial photographs by using the Ube Tech.College Picture Information Processing System， U-PIPS.A lot of results of this research they reported were mainly taken out of chromatic characteristics in a photograph.In order to improve region segmentation abilities， they are willing to get height or depth informations concerning with the object.It is necessary for this to process two different photographs， in these photographs， same objects are taken at several centi-meters apart i. e. ， stereo-photographs.As the first step in this scheme， they investigated stereo-photographs of building-brocks because of its simplicity in shape.Two photographs were taken at about 20 centi-meters apart.Next co-ordinates of all vertexes were measured individually in these photographs. Dimensions of building-blocks were calculated from measured coordinates and compared with actual dimensions.There were small defferences in these dimensions.After some investigations it was found that these errors were mainly caused by measuring errors of coordinates of vertexes.1. まえがき 宇部高専画像情報処理システム(Ube Tech.Coll.Picture lnformation Processing System， U-PIPS)を用いて， カラー空中写真から湖沼部を抽出して，その面積及び周 辺長を計測した結果については報告している. この場合， 湖面の色彩情報を利用したが，一般に湖面の色彩は水深 の違いや水生植物の有無等に寄り大幅に変化し，又周辺 部においては陸地部との区別が難しい.ところで湖面の 高度は一定であるので色彩情報に加えて，対象の高度や 海抜高に関する情報が利用できればさらに高精度化が期 ＊宇部工業高等専門学校電気工学科 待できる.
Authors: Tsutomu Fujimoto, Mamoru Tanaka
Language: English
Subfield: Computer Vision and Pattern Recognition
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2899434381