Adaptive Forward-Reverse Filter using Interpolation Methods for Artifact Suppression in Retinal Prostheses

Myounghwan Choi, Jeong-Yeol Ahn, Dae-Jin Park, Yujin Jeong, Sangyeol Lee, Sanghyub Lee, Dong-il Cho, Yong-Sook Goo, Kyo-in Koo


Electrical stimulation on retinal ganglion cells (RGCs) induce the short-latency (directly-evoked) and long-latency (indirectly-evoked) responses of RGCs. The artifact suppression and isolation of direct RGC spike is required for proper analysis of visual information. Adaptive forward-reverse filter (FR filter) using interpolation method is proposed and evaluated. On selected over 1.6 ms waves, which is suspected as artifact, 2 new data points are linearly interpolated between the recorded data points. After that, the interpolated data are filtered by frequency-based FR filter (500 Hz). The proposed algorithm shows the best true positive rate (0.7629) comparing with the SALPA and the simple FR filter without the interpolation method. In point of view of the false positive rate, the proposed algorithm demonstrates the second-best performance (0.0047), not better than the SALPA (0.0006).


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Paper Citation

in Harvard Style

Choi M., Ahn J., Park D., Jeong Y., Lee S., Lee S., Cho D., Goo Y. and Koo K. (2016). Adaptive Forward-Reverse Filter using Interpolation Methods for Artifact Suppression in Retinal Prostheses . In - SPCS, (PECCS 2016) ISBN , pages 0-0. DOI: 10.5220/0005944001050109

in Bibtex Style

author={Myounghwan Choi and Jeong-Yeol Ahn and Dae-Jin Park and Yujin Jeong and Sangyeol Lee and Sanghyub Lee and Dong-il Cho and Yong-Sook Goo and Kyo-in Koo},
title={Adaptive Forward-Reverse Filter using Interpolation Methods for Artifact Suppression in Retinal Prostheses},
booktitle={ - SPCS, (PECCS 2016)},

in EndNote Style

JO - - SPCS, (PECCS 2016)
TI - Adaptive Forward-Reverse Filter using Interpolation Methods for Artifact Suppression in Retinal Prostheses
SN -
AU - Choi M.
AU - Ahn J.
AU - Park D.
AU - Jeong Y.
AU - Lee S.
AU - Lee S.
AU - Cho D.
AU - Goo Y.
AU - Koo K.
PY - 2016
SP - 0
EP - 0
DO - 10.5220/0005944001050109