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International Journal of Creative and Open Research in Engineering and Management

A Peer-Reviewed, Open-Access International Journal Supporting Multidisciplinary Research, Digital Publishing Standards, DOI Registration, and Academic Indexing.
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ISSN: 3108-1754 (Online)
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ISO Certification: 9001:2015
Publication Fee: 599/- INR
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License: CC BY 4.0
Peer Review: Double Blind
Volume 02, Issue 04

Published on: April 2026

REAL-TIME AIR WRITING AND ALPHANUMERIC CHARACTER RECOGNITION USING COMPUTER VISION AND MACHINE LEARNING

V.Sneha G.Bhavya Sri R.Anil Kumar G.Keerthi Vardhan Reddy Y.Raghavendra

K.Kiran Babu

Department of CSE(Data Science) ACE Engineering College Hyderabad Telangana India

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Plagiarism Passed Peer Reviewed Open Access

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Abstract

Air writing recognition is a method for recording writing in air, without using any physical tools such as pen or paper, to create the text. Current ways of inputting information into a computer, such as keyboarding and touch screen, are not always practical; due to lack of contact during input. In addition, the functionality of many current air writing systems is limited by the variance between how people create letters (i.e., writing style) and different environmental factors. The intention of this research is to develop a machine learning-based air writing recognition system to identify characters written in the air using hand movements to identify example patterns (e.g., direction, shape, and motion) based on the user. The system will also track how the user develops writing over time. An air writing recognition system can classify air-written letters via output matching to the machine learning encountered during development. The system will recognize air-written letters and convert each complete air writing into a digital letter using appropriate air writing input techniques such as Support Vector Machines, Convolutional Neural Networks, and Decision Tree Classification. By applying machine learning, the air writing recognition system will be capable of recognizing and determining the air writing characters produced from hand movements. In turn, this will enable users to enter information into a computing device as an input but with an entirely new method of inputting data that does not require touch between the user and device.

How to Cite this Paper

V.Sneha, , Sri, G., Kumar, R., Reddy, G. V. & Y.Raghavendra, (2026). Real-Time Air Writing and Alphanumeric Character Recognition Using Computer Vision and Machine Learning. International Journal of Creative and Open Research in Engineering and Management, <i>02</i>(04). https://doi.org/10.55041/ijcope.v2i4.130

V.Sneha, , et al.. "Real-Time Air Writing and Alphanumeric Character Recognition Using Computer Vision and Machine Learning." International Journal of Creative and Open Research in Engineering and Management, vol. 02, no. 04, 2026, pp. . doi:https://doi.org/10.55041/ijcope.v2i4.130.

V.Sneha, ,G.Bhavya Sri,R.Anil Kumar,G.Keerthi Reddy, and Y.Raghavendra. "Real-Time Air Writing and Alphanumeric Character Recognition Using Computer Vision and Machine Learning." International Journal of Creative and Open Research in Engineering and Management 02, no. 04 (2026). https://doi.org/https://doi.org/10.55041/ijcope.v2i4.130.

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References

[1] In 2020, Murthy et al. studied the methods used to identify air written characters based on visual techniques of gesture recognition using image processing methods. The results of this study are published in International Journal of Computer Vision, volume 58, issue 3, pp. 210-225.


[2] Kumar et al. (2021) provided information on how data mining methods apply to gesture recognition. They demonstrated how the use of pattern recognition aids in identifying air written characters in their publication Decision Support Systems, Volume 50, II 3, pages 559-569.


[3] In 2022, Sharma and Gupta completed a survey of the ML based approaches for gesture recognition. The researchers presented the variety of algorithms developed for air writing systems in IEEE Transactions on Big Data, volume 8, II 2, pages 1-15.


[4] In 2023, Reddy et al. employed Support Vector Machines to identify gestures related to air writing. The authors evaluated the trajectories and direction of the gesture features they measured in Expert Systems with Applications, volume 195, pages 116-130.


[5] Rao et al. examined deep learning techniques for recognizing air written characters in 2024 and determined that neural networks can improve accuracy when identifying gestures. This research was published in IEEE Access, volume 12, pages 34567-34580.


[6] XGBoost is a scalable machine-learning method introduced by Chen and Guestrin in 2016. The method was presented at the SIGKDD conference as a way to implement recognizer systems on large amounts of data.


[7] In 2009, Chandola, Banerjee and Kumar published a survey on anomaly detection methods. The authors discuss how to find unexpected patterns in data through detecting anomalies. This survey can be found in ACM Computing Surveys, Volume 41, Number 3, Pages 1 through 58.

Ethical Compliance & Review Process

  • All submissions are screened under plagiarism detection.
  • Review follows editorial policy.
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  • Peer Review Type: Double-Blind Peer Review
  • Published on: Apr 08 2026
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