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Polibits
versión On-line ISSN 1870-9044
Resumen
RODRIGUEZ ZALAPA, Omar; HERNANDEZ ZAVALA, Antonio y HUERTA RUELAS, Jorge Adalberto. Distance Measurement System using Images to Determine the Position of a Sphere using the XBOX Kinect Sensor. Polibits [online]. 2014, n.49, pp.59-68. ISSN 1870-9044.
This paper presents a method to measure the distance from the centroid of a segmented object in a color image with respect to a fixed reference point into the image. The algorithm was tested using a color image sequence by analyzing over 100 different vertical positions of a ball housed inside a transparent acrylic cylindrical column of constant diameter and length. The proposed algorithm integrates technics of correction by white balance and calibration of the camera with its intrinsic parameters; in addition, a new color segmentation method is tested to calculate real-world distances into color images RGB. The results show high reliability because 100% of measurements had a relative error in percentage less than 1.64%, with a higher level of precision than the reference instrument used in a distance range from 0 to 1340 mm.
Palabras llave : Photogrammetry; measuring distances into images; visual sensor of distances; simple view metrology; segmentation; tracking objects.