Title :
Three dimensional measurement using color image and movable CCD system
Author :
Egami, Toshihito ; Oe, Shuni Chiro ; Terada, Kenji ; KASHIWAGI, Toshiyuki
Author_Institution :
Dept. of Inf. Sci. & Intelligent Syst., Tokushima Univ., Japan
Abstract :
This paper deals with a new distance measurement method of color images by using an RGB color histogram. We measure the distance based on the principle of depth-from-focus. It needs to detect focal position among many images with different focusing position. Our method is based on that the more focal area has the less color frequency. By this method, we detect the focal area without using spatial frequency as in conventional methods. The validity of our method is verified by some experimental results
Keywords :
CCD image sensors; distance measurement; image colour analysis; object recognition; RGB color histogram; blur characteristics; color frequency; color image; depth-from-focus; distance measurement method; focal area; focusing position; movable CCD system; object recognition; three dimensional measurement; Charge coupled devices; Color; Distance measurement; Focusing; Frequency; Geometrical optics; Histograms; Lenses; Pixel; Solid modeling;
Conference_Titel :
Industrial Electronics Society, 2001. IECON '01. The 27th Annual Conference of the IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-7108-9
DOI :
10.1109/IECON.2001.975586
