Diagnóstico geométrico y superficial del complejo deportivo de la USTA mediante fotogrametría UAS

Abstract

This article presents a geometric and surface diagnosis of the soccer field, athletics track and long-jump area at the Universidad Santo Tomás (USTA) campus in Bogotá, using photogrammetry from an Autel EVO II Pro RTK V2 UAS, without using its RTK module. A total of 477 images were captured at 30 m above ground (GSD ≈ 0.8 cm/px), processed in Pix4Dmatic and analyzed in Pix4Dcloud to obtain an orthomosaic, a digital surface model (DSM) and a digital terrain model (DTM). Measurements were compared with the IFAB Laws of the Game and World Athletics regulations, within the scope of a diagnosis for non-certified training use. Of 20 elements assessed, 5 comply, 5 do not comply and 10 require field verification. Key nonconformities include the penalty area deficit (−13.8 %) and goal area deficit (up to −5.0 %); the track length measured on the line between lanes 1 and 2 (405.79 m) is equivalent to ≈ 400 m on the regulatory measurement line; slopes (e.g., 1.34 % vs. 1 % on the track and 0.37 % vs. 0.1 % on the jump runway) remain to be verified by levelling, since the model was georeferenced without RTK or GCPs; in addition, 1,639 m² of surface damage were digitized on the track. Since no checkpoints were measured, absolute accuracy could not be quantified and is reported as a limitation. The results support a prioritized intervention matrix.