Alphabet Recognition of American Sign Language : A Hand Gesture Recognition Approach Using Sift Algorithm

This paper is a sincere attempt to recognize english alphabets as part of hand gesture recognition, usingthe SIFT algorithm. The novelty of this approach is, it is a space, size, illumination and rotation invariantapproach. The approach has evolved to work well with both the standard American Sign Language (ASL)database and home-made database. The problem of alphabet recognition may seem to sound small but theintricacies involved in it cannot be solved using a single algorithm. Hand gesture recognition is acomplicated task. A one stop solution is still not evolved for any recognition process. This paper has triedto approach this in a simple but efficient manner using the basic SIFT algorithm for recognition. Theefficacy of the approach is proved well through the results obtained, invariably on both the datasets.