title: [Optimum design and performance evaluation of down-sampling algorithm for visual prosthesis imaging processing].
abstract: According to analyses of the real-time performance of the visual prosthesis image processing system, down-sampling is a key factor which influences the processing speed. Based on these analyses, the algorithm of grid sampled averaging was proposed for down-sampling. Then the effect of grid parameters on the result and algorithm complexity was evaluated by using the regional-averaging algorithm as a reference. Our research shows that the grid-averaging algorithm could reduce the computation burden by 90% or more, with no significant difference from the regional-averaging algorithm.
authors.affiliation: School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240.
authors.forename: Yun
authors.initials: Y
authors.lastname: Gu
authors.forename: Kaijie
authors.initials: K
authors.lastname: Wu
authors.forename: Xuping
authors.initials: X
authors.lastname: Lei
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.forename: Xinyu
authors.initials: X
authors.lastname: Chai
mesh_terms: D000465:Algorithms; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D057488:Visual Prosthesis