Determination of Camera Position in Soccer Games

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Doria, Fernando F. ; Lima, Felipe B. C. L. ; Real, Lucas ; Oliveira, Vinicius R. G. ; Takimoto, Rogerio Y. ; Sato, Andre K. ; Najafabadi, Hossein R. ; Tsuzuki, Fabio S. G. ; Tsuzuki, Marcos S. G. ; Tsuzuki, MDG ; Pessoa, MAD

• Tipo de documento: Artigo Científico
• Fonte: 2021 14TH IEEE INTERNATIONAL CONFERENCE ON INDUSTRY APPLICATIONS (INDUSCON); v. N/A, p. 5-pg., 2021-01-01.

Resumo

The automation of soccer video analysis is an area of recent interest, particularly the 3D reconstruction of soccer matches from broadcast video. One important task is the camera center determination. The camera center is calculated from a single soccer match image. It is assumed that a model of the soccer field with known dimensions is accessible. Two different approaches are presented: 1. Camera matrix determination; and 2. Homography matrix determination. It is shown that the homography matrix can be determined using mapped points and lines. Both methods are compared. To improve the numerical stability, a normalization procedure is used. Both methods with normalization are also compared. The results showed that the combination of points and lines with normalization improved the obtained results. (AU)

• Processo FAPESP: 20/02538-1 - Detecção dos jogadores e rastreamento da bola em cenas de partidas de futebol
• Beneficiário: Fernando Ferreira Doria
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica