A facial feature communications interface for the non-vocal
- 1 September 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Engineering in Medicine and Biology Magazine
- Vol. 12 (3) , 46-48
- https://doi.org/10.1109/51.232340
Abstract
A viable communications interface for the nonvocal handicapped that is a by-product of recent face recognition research is described. The system uses either the Karhunen-Loeve transform (KLT) or the discrete cosine transform (DCT) to encode video camera images on a subject's face. The encoding differentiates among three expressions: tongue out which is classified as 'yes'; mouth open, which is classified as 'no'; and mouth closed, which is classified as 'null'. A review of the theory of the KLT and DCT is included.Keywords
This publication has 4 references indexed in Scilit:
- Video compression makes big gainsIEEE Spectrum, 1991
- Recognition in face spacePublished by SPIE-Intl Soc Optical Eng ,1991
- Comments on "Discrete Cosine Transform"IEEE Transactions on Computers, 1975
- Discrete Cosine TransformIEEE Transactions on Computers, 1974