A New Assistive Technology in Android Platform to Aid Vocabulary Knowledge Acquirement in Indian Sign Language for Better Reading Comprehension in L2 and Mathematical Ability

A new app on android platform has been proposed and designed to help speech and hearing impaired persons to develop vocabulary knowledge in breadth as well as depth in Indian Sign Language (ISL) through the learning of relevant synonyms and antonyms and mapped into semantic connotation via sign inputs to recognize the symbols in absence of sound through some visual clues (Sign Video). The vocabulary acquirement scheme in ISL is chosen in such a way that the understanding capability and logical sense in the second language (L2) will grow automatically. Finally, the android app in different regional languages (English with ten regional languages) used in India has been implemented, thus introducing a mobile App based Indian Sign Language Dictionary with synonyms, antonyms, presently in Bengali, along with different sentence making examples. This app is so aimed that the intellectual ability, writing skill and mathematical ability of the speech and hearing impaired can flourish in tandem with learning of normal students.