Static gestures of Indian Sign Language (ISL) for English Alphabet, Hindi Vowels and Numerals

This dataset consists of static hand gestures and lips movement for each character in the English alphabet, eight Hindi Vowels and ten Numerals as represented in Indian sign language (ISL). The dataset consists of 1,02,470 images of subjects from different age groups presenting static gestures under varied backgrounds and illumination conditions. The dataset is structured into three folders namely Kids, Teenagers and Adults. Each folder consists of sub-folders namely Full Sleeves and Half Sleeves indicating the type of clothing that the subject has worn at the time of image acquisition. In each sub-folders, images for the English alphabet, Hindi Vowels and Numerals are stored respectively in the sub-folders named with that specific character. However, for the English alphabet 'E' and Numeral '9' we have captured two different signs for each (that are used interchangeably), and it is contained in the folder namely E1 and E2 for alphabet 'E' and 9a and 9b for Numeral '9'. For the English alphabet, wherever a character is represented by a dynamic sign, the last frame of the sign is captured. For example, this is typically a case with English characters like 'J', 'H' and 'Y'. The images are stored in .jpeg format and have resolutions varying from 300 x 500 to 800 x 600, and the size is less than 100KB. The dataset is captured by a team pursuing research at Chandigarh College of Engineering and Technology, Chandigarh. The subjects have been informed about the research and Informed Participant Consent has been obtained prior to image acquisition. This dataset can be used only for research purposes either as it is or after cropping the static gestures from the image after duly referencing it. Any other use of the dataset is strictly prohibited and any illegal use is subject to the Indian court of law.

本数据集涵盖印度手语（Indian Sign Language，ISL）中对应英文字母、8个印地语元音与10个数字的静态手势及唇部动作影像。该数据集共收录102470张图像，采集自不同年龄层的受试者，拍摄场景涵盖多样化背景与光照条件。数据集按年龄划分为三个文件夹：儿童组、青少年组与成人组。每个年龄组文件夹下设有“长袖”与“短袖”两个子文件夹，用于标注受试者拍摄时的着装类型。在每个着装子文件夹中，英文字母、印地语元音与数字的图像分别存储于以对应字符命名的子文件夹内。需注意，英文字母“E”与数字“9”各存在两种可互换使用的手势，分别对应文件夹E1、E2（字母“E”）与9a、9b（数字“9”）。对于需通过动态手势表达的英文字母（如“J”“H”“Y”），本数据集采用其动作的最后一帧图像作为存储内容。所有图像均采用.jpeg格式存储，分辨率范围为300×500至800×600，单张图像大小均小于100KB。本数据集由印度昌迪加尔工程技术学院（Chandigarh College of Engineering and Technology, Chandigarh）的研究团队采集完成，所有受试者均已知晓研究用途，并在图像采集前签署了受试者知情同意书（Informed Participant Consent）。本数据集仅可用于学术研究，可直接使用或在对静态手势进行裁剪后使用，但需规范引用该数据集。严禁任何其他形式的使用，非法使用将受印度法律管辖。