A vertical-horizontal-intersections feature based method for identification of bharatanatyam double hand mudra images
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A vertical-horizontal-intersections feature based method for identification of bharatanatyam double hand mudra images Basavaraj S. Anami 1 & Venkatesh A. Bhandage 2
Received: 8 December 2017 / Revised: 24 May 2018 / Accepted: 28 May 2018 # Springer Science+Business Media, LLC, part of Springer Nature 2018
Abstract Bharatanatyam is an Indian classical dance, which has to be studied under an expert. In villages, semi-urban areas and foreign countries the experts are scarce. In order to promote, popularize and make it self-pursuable, this Indian art requires technological leveraging. With this motivation, the goal of this work is to automate identification of mudras through Image processing. This paper presents a three stage methodology for identification of 24 double hand mudra images of Bharatanatyam dance. In the first stage, acquired images of Bharatanatyam mudras are preprocessed to obtain contours of mudras using canny edge detector. In the second stage, cell features are extracted that include number of vertical and horizontal intersections of grid lines with the contours of the mudras. In the third stage, a rule based classifier is developed to classify the given image into 24 classes of mudras. The proposed method is implemented using OpenCV with Microsoft visual C++ IDE. The proposed method finds many applications such as e-learning of mudras and proper postures leading to self-learning of Bharatanatyam dance, online commentary during concerts, and adoption to many other forms of dances prevailing in India and outside. Keywords Samyukta mudras . Contour of mudras . Cell features . Intersections . Rule based classifier
1 Introduction The research in digital image processing, particularly in the last few decades, has led to many recent developments of image processing applications. One such significant application is seen in identification of Bharatanatyam dance mudras. The Bharatanatyam, a form of Indian dance
* Venkatesh A. Bhandage [email protected]
1
K.L.E. Institute of Technology, Hubballi, Karnataka, India
2
Department of CSE, Tontadarya College of Engineering, Gadag, Karnataka, India
Multimed Tools Appl
that is most popularly interpreted as combination of BBhava^, which means expression, BRaga^, which means musical tune, BTala^, which means rhythm or beat and BNatyam^, which means dance. Therefore, Bhava + Raga +Tala +Natyam = BHARATANATYAM. It is a highly specialized science with a traditional background and rigid codes and conventions. The technique of Bharatanatyam consists of principles of coordinated hand, foot, face and body movements which are performed to the accompaniment of dance syllables. Figure 1 shows typical postures of some of Bharatanatyam dance along with some mudras. A mudra is the most striking feature of this Indian classical dance, which is the use of hand gestures. Hand sign is a ritual gesture in Hinduism and Buddhism. The dance gestures, a way of non-verbal communication, are used to visually convey outer events or things, as well as inner feelings. Two typ
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