Monocular vision system and three-dimensional size rapid measurement method based on system

• Main Authors: YANG CHUN, ZENG ZHICHAO, WU FUPEI, LI JINTIAN, WU TAO, FANG XINJIA, LI SHENGPING, YE WEILIN
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2017
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention relates to an industrial vision measurement method, and particularly relates to a monocular vision system and a three-dimensional size rapid measurement method based on the system. The monocular vision system comprises a CCD color camera and a three-color LED ring light source. The three-dimensional measurement method of the monocular vision system comprises the steps that the installing height, the incident angle and the distribution density of the three-color LED ring light source are strictly calibrated; the optical imaging model of the monocular vision system is established; and the optical imaging model of the monocular vision system is solved by using an incident angle determination method of incident light relative to the plane of the view field so that height information of all the points of the surface of a measured object is obtained. The light source especially used for the method is designed based on an active optical measurement method so that the algorithm difficulty of feature ext