Purpose: We report that a large field-of-view (FOV) retinal image can be acquired by a smart fundus camera. Approach: This handheld system consists of a Raspberry Pi board, a touch screen display, a customized optical lens group, a ring light-emitting diode, and a Li-battery. Results: Wide FOV of ∼ 57 deg is observed with proper lens configuration and can be expanded using image stitching algorithms. Conclusions: This customized handheld fundus camera provides better image quality than cellphone-based fundus imaging solutions and offers more operational features than traditional portable fundus cameras. It may benefit field-portable ophthalmic diagnostic applications.
Purpose: We report that a large field-of-view (FOV) retinal image can be acquired by a smart fundus camera. Approach: This handheld system consists of a Raspberry Pi board, a touch screen display, a customized optical lens group, a ring light-emitting diode, and a Li-battery. Results: Wide FOV of ∼ 57 deg is observed with proper lens configuration and can be expanded using image stitching algorithms. Conclusions: This customized handheld fundus camera provides better image quality than cellphone-based fundus imaging solutions and offers more operational features than traditional portable fundus cameras. It may benefit field-portable ophthalmic diagnostic applications.
Authors: Pedro Romero; Ramon Sagarra; Jeroni Ferrer; Juan Fernández-Ballart; Marc Baget Journal: Diabetes Res Clin Pract Date: 2010-03-01 Impact factor: 5.602
Authors: Ratheesh K Meleppat; Pengfei Zhang; Myeong Jin Ju; Suman K Manna; Yifan Jian; Edward N Pugh; Robert J Zawadzki Journal: J Biomed Opt Date: 2019-06 Impact factor: 3.170