M
Manjunatha Mahadevappa
Researcher at Indian Institute of Technology Kharagpur
Publications - 144
Citations - 2698
Manjunatha Mahadevappa is an academic researcher from Indian Institute of Technology Kharagpur. The author has contributed to research in topics: Functional electrical stimulation & Computer science. The author has an hindex of 22, co-authored 132 publications receiving 2352 citations. Previous affiliations of Manjunatha Mahadevappa include University of Southern California & Indian Institutes of Technology.
Papers
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Journal ArticleDOI
Brightness preserving dynamic fuzzy histogram equalization
TL;DR: The modified technique, called Brightness Preserving Dynamic Fuzzy Histogram Equalization (BPDFHE), uses fuzzy statistics of digital images for their representation and processing, resulting in improved performance.
Journal ArticleDOI
Visual performance using a retinal prosthesis in three subjects with retinitis pigmentosa.
D. Yanai,D. Yanai,James D. Weiland,Manjunatha Mahadevappa,Robert J. Greenberg,Ione Fine,Mark S. Humayun +6 more
TL;DR: In this article, the authors evaluated visual task performance in three blind subjects implanted with epiretinal prostheses and found that the prosthesis was wirelessly controlled by a computer or by a head-worn video camera.
Journal ArticleDOI
Factors affecting perceptual thresholds in epiretinal prostheses.
Chloé de Balthasar,Sweta Patel,Arup Roy,R. Freda,Scott H. Greenwald,Alan Horsager,Manjunatha Mahadevappa,D. Yanai,Matthew J. McMahon,Mark S. Humayun,Robert J. Greenberg,James D. Weiland,Ione Fine,Ione Fine +13 more
TL;DR: Evaluated how perceptual thresholds are related to electrode impedance, electrode size, the distance of electrodes from the retinal surface, and retinal thickness in six subjects blind as a result of retinitis pigmentosa, who received epiretinal prostheses implanted monocularly as part of a FDA-approved clinical trial.
Journal ArticleDOI
Perceptual thresholds and electrode impedance in three retinal prosthesis subjects
Manjunatha Mahadevappa,James D. Weiland,D. Yanai,Ione Fine,Robert J. Greenberg,Mark S. Humayun +5 more
TL;DR: Three test subjects blind from retinitis pigmentosa were implanted with retinal prostheses as part of a FDA-approved clinical trial and data show that proximity to the retina played a role in determining the threshold and impedance, but only for electrodes that were greater than 0.5 mm from the retina.
Journal ArticleDOI
Functional electrical stimulation of dorsiflexor muscle: effects on dorsiflexor strength, plantarflexor spasticity, and motor recovery in stroke patients.
TL;DR: Therapy combining FES and conventional Rehabilitation program was superior to a conventional rehabilitation program alone, in terms of reducing spasticity, improving dorsiflexor strength and lower extremity motor recovery in stroke patients.