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A high-accuracy surgical augmented reality system using enhanced integral videography image overlay.
Conf Proc IEEE Eng Med Biol Soc ; 2015: 4210-3, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26737223
Image guided surgery has been used in clinic to improve the surgery safety and accuracy. Augmented reality (AR) technique, which can provide intuitive image guidance, has been greatly evolved these years. As one promising approach of surgical AR systems, integral videography (IV) autostereoscopic image overlay has achieved accurate fusion of full parallax guidance into surgical scene. This paper describes an image enhanced high-accuracy IV overlay system. A flexible optical image enhancement system (IES) is designed to increase the resolution and quality of IV image. Furthermore, we introduce a novel IV rendering algorithm to promote the spatial accuracy with the consideration of distortion introduced by micro lens array. Preliminary experiments validated that the image accuracy and resolution are improved with the proposed methods. The resolution of the IV image could be promoted to 1 mm for a micro lens array with pitch of 2.32 mm and IES magnification value of 0.5. The relative deviation of accuracy in depth and lateral directions are -4.68 ± 0.83% and -9.01 ± 0.42%.





Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Algoritmos / Aumento da Imagem / Cirurgia Vídeoassistida / Cirurgia Assistida por Computador Limite: Humanos Idioma: Inglês Revista: Conf Proc IEEE Eng Med Biol Soc Assunto da revista: Engenharia Biomédica Ano de publicação: 2015 Tipo de documento: Artigo