03029nas|a2200433 a 4500 20260817161132.0 161121s2011 th uu|m rtt 0| a1eng d .b12174968 AIT Thesis no.CS-11-11 Atima Tharatipyakul 3D virtual model construction and visualization for an agricultural field inspection robot Pathum Thani, Thailand : Asian Institute of Technology, 2011 43 p. : ill. Thesis ; no. CS-11-11 Thesis (M.Sc.) - Asian Institute of Technology, 2011 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Computer Science, School of Engineering and Technology Agricultural farm inspection is essent ial to maintain good crop quality. Using a robot equipped with a monocular webcam for observation could reduce time and efforts of a farmer. This thesis is a continuous research to extract fruit information from a video data. Existing 3D modeling application in AIT is analyzed to fix problems and improve accuracy of reconstructed pineapple models. Improvement in reconstruction consists of symmetric feature matching, 2D-3D point matching using multiple frames, key frame selection with used of fruit region constraint, and camera motion recovery in present of outliers. Modeling is constrained by ratio of radii for more accurate fruit models. Moreover, this t hesis adds visualization which enables users to manipulate a scene of pineapple models. Experimental results demonstrate decrease in error rate in reconstruction pipeline. The system now automatically generates parts of the farm from an image sequence. Three-dimensional modeling Agriculture Automation Dailey, Mathew N., Chairperson Janecek, Paul, Examination Committee Monkol Ekpanyapong, Examination Committee Royal Thai Government Fellowship, Scholarship donor Asian Institute of Technology. Thesis : no. CS-11-11 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B11361 .b12174968 mnait m 240409 0 161121 m a m 0 000:001:PDF:b1217496:002804:0:0:0:0:0:0 Abstract-AIT Thesis no.CS-11-11 n mnait mnait mnarc 20 40 Barcode : 30050120388979 CREATED : 2016-11-21 RECORD # : i13061641 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120388961 CREATED : 2016-11-21 RECORD # : i13061653 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120402689 CREATED : 2017-06-09 RECORD # : i13096874 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 66 66 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.CS-11-11 30050120388979 2026-08-17 16:11:32 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT Thesis no.CS-11-11 30050120388961 2026-08-17 16:11:32 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.CS-11-11 30050120402689 2026-08-17 16:11:32 1 2026-08-17 40