Sign language forms a major communication media among the deaf people through which they try to communicate with others. They successfully communicate with each other when using sign language, but they face lots of difficulties when they try to communicate with normal people, especially those who are unfamiliar with the sign language. Hand gestures have received increasingly more attention in the last two decades. In this paper, we have focused on the efforts carried out by us in the field of Indian sign language recognition system. Initially we have worked in phases. Firstly we have concentrated on the study aspect in the same area, followed by step by step recognition of alphabets, numbers, words, then semantic sentences formation and recognition of the same. This paper is an effort of summarization of all our contributory efforts in the recognition area of Indian sign language.

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Indian Sign Language Color Blob Detection General Fuzzy Min-max Algorithm.