title: Design of an integrated hardware interface for AOSLO image capture and cone-targeted stimulus delivery.
abstract: We demonstrate an integrated FPGA solution to project highly stabilized, aberration-corrected stimuli directly onto the retina by means of real-time retinal image motion signals in combination with high speed modulation of a scanning laser. By reducing the latency between target location prediction and stimulus delivery, the stimulus location accuracy, in a subject with good fixation, is improved to 0.15 arcminutes from 0.26 arcminutes in our earlier solution. We also demonstrate the new FPGA solution is capable of delivering stabilized large stimulus pattern (up to 256 x 256 pixels) to the retina.
authors: Montana State University, Bozeman, MT 59717, USA. yang@math.montana.edu
authors: Qiang
authors: Q
authors: Yang
authors: David W
authors: DW
authors: Arathorn
authors: Pavan
authors: P
authors: Tiruveedhula
authors: Curtis R
authors: CR
authors: Vogel
authors: Austin
authors: A
authors: Roorda
mesh_terms: D000465:Algorithms; D003201:Computers; D004867:Equipment Design; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D007834:Lasers; D019721:Ophthalmoscopes; D009887:Ophthalmoscopy / Q000379:methods*; D010775:Photic Stimulation / Q000295:instrumentation* / Q000379:methods; D017949:Retinal Cone Photoreceptor Cells / Q000502:physiology*; D012984:Software