Optimum design and performance evaluation of down-sampling algorithm for visual prosthesis imaging processing.
- Author:
Yun GU
1
;
Kaijie WU
;
Xuping LEI
;
Hao WU
;
Xinyu CHAI
Author Information
1. School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240.
- Publication Type:Journal Article
- MeSH:
Algorithms;
Image Processing, Computer-Assisted;
methods;
Visual Prosthesis
- From:
Chinese Journal of Medical Instrumentation
2013;37(1):33-36
- CountryChina
- Language:Chinese
-
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.
