

The experimental results show that image preprocessing using background correction can improve model performance. The test results show that the proposed model has good performance with an accuracy value of 99%. Finally the process of testing the model using data input of hand sign language images from a web camera. Next, separate the dataset for training and validation respectively 75% and 25%. First, the background correction process is carried out and the input image size is changed to 32×32 pixels using the bicubic interpolation method. This model is trained using the ASL alphabet database which consists of 27 categories, where each category consists of 3000 images or a total of 87,000 hand gesture images measuring 200×200 pixels. The model used is a seven-layer Convolutional Neural Network (CNN).

The main contribution of this research is to produce a real-time hand sign language image acquisition, and hand sign language recognition model for Alphabet.

This study aims to create a hand sign language recognition model for alphabetic letters using a deep learning approach. Problems occur when communicating between normal people with hearing loss, because not everyone understands sign language, so a model is needed to recognize sign language as well as a learning tool for beginners who want to learn sign language, especially alphabetic sign language. Each hand sign represents one meaning, but several terms don't have sign language, so they have to be spelled alphabetically. You saw how a letter is written and might be pronounced, but there is nothing better than hearing the sound of the letters in a video or audio.Sign language is a method of communication that uses hand gestures between people with hearing loss. ষ Sound of ‘sh’ when the tongue touches the roots of the teeth ফ Sound of ‘f’ if pronounced with closed lips ধ sound produced by coupling soft ‘d’ and ‘h’= ‘dh’ ণ Nasal sound when the tongue touches a bit away from teeth ঞ Just like ‘gn’ of gnome with a slight up movement of tongue ঝ This is produced using the naval sounds while the tongue touches the upper part of mouth cavity The better you pronounce a letter in a word, the more understood you will be in speaking the Bengali language.īelow is a table showing the Bengali alphabet and how it is pronounced in English, and finally examples of how those letters would sound if you place them in a word. Without it, you will not be able to say words properly even if you know how to write those words. Learning the Bengali alphabet is very important because its structure is used in every day conversation.
