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# Intelligent Indian Sign Language Recognition System (ISL-R) *A unified deep-learning system for real-time recognition of words, alphabets, and numbers in Indian Sign Language.* ## Abstract Communication for hearing or speech-impaired individuals relies on sign language. However, existing Indian Sign Language (ISL) systems mostly focus on alphabets or digits, leaving out common conversational words and mixed gestures. This project develops a real-time ISL recognition system that detects words, alphabets, and numbers from live video and converts them into coherent text or speech output. It supports mixed input sequences like: “I love you 3000” → “I” (alphabet) + “love” (word) + “you” (word) + “3000” (numbers). The system uses hand-pose landmark extraction, temporal deep-learning models, and sentence-formation logic to produce readable text and optional voice feedback in real time. ## Objectives - Build a comprehensive ISL dataset with alphabets (A–Z), numbers (0–9), and daily-use words. - Train multi-branch neural networks for different gesture types. - Create a real-time inference system for mixed gesture sequences. - Implement sentence builder logic with debounce and text-to-speech. - Ensure cross-platform compatibility (Web + Embedded). ## Problem Statement Existing ISL tools have limited vocabulary, poor robustness, no support for mixed sequences, and high latency. This system fixes those by providing a diverse dataset, optimized lightweight models, and a low-latency unified recognition engine for alphabets, numbers, and words. ## System Architecture **Flow:** Camera → Hand Detection → Pose Estimation → Model Inference (W/C/N) → Token Assembly → Sentence Formation → TTS Output. **Modules:** 1. **Pose Extraction:** MediaPipe Hands or TFJS HandPose (21 keypoints per hand). 2. **Feature Encoding:** Normalized xyz, pairwise distances, angles. 3. **Model Heads:** CNN for characters/numbers, Bi-LSTM for words. 4. **Sequence Builder:** Collects tokens, applies debounce, auto-space, backspace. 5. **Output Layer:** Text display + optional speech via TTS. ## Dataset Design ### Gesture Categories | Type | Count | Examples | |------|--------|-----------| | Words (W) | 15–25 | hello, bye, thank_you, sorry, please, yes, no, help, love, you, me, ok, where, what | | Alphabets (C) | 26 | A–Z | | Numbers (N) | 10 | 0–9 | ### Dataset Size - 500–1000 samples per class, 10–15 participants. - Lighting/background diversity. - Train/Val/Test = 70/15/15 (no subject overlap). ### Annotation Format ```json { "id": "vid_0045", "label": {"type": "W", "name": "love"}, "fps": 30, "frames": 60, "landmarks": [[x,y,z]*21 per frame], "subject": "s09", "lighting": "outdoor" }
Proje No: 40051662
12 teklifler
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12 freelancer bu proje için ortalama ₹6.942 INR teklif veriyor

Hi there, I am an ML engineer. I can start right away and deliver within the deadline. So, Let’s have a quick conversation. I can be more specific once we get all the requirements and information required to execute the project. Thank you!!
₹7.000 INR 7 gün içinde
5,6
5,6

Hello, I specialize in AI research and development, with hands-on experience in designing and implementing machine learning models, natural language processing solutions, and computer vision systems. My work includes developing intelligent algorithms that optimize performance, conducting experiments to advance model accuracy, and integrating AI solutions into real-world applications. I have also contributed to projects involving deep learning, reinforcement learning, and large-scale data analysis, allowing me to create innovative tools and frameworks for complex problem-solving. I would be happy to assist you with your project and explore how my expertise in AI research and development can add value. Please feel free to message me so we can discuss the project requirements and next steps in detail. Thank you.
₹7.000 INR 7 gün içinde
5,5
5,5

Hello Harsh! I’m excited about the opportunity to help with your project. Based on your requirements, I believe my expertise in Python aligns perfectly with your needs. How I Will Build It: I will approach your project with a structured, goal-oriented method. Using my experience in Python, Matlab and Mathematica, Machine Learning (ML), Tensorflow, Computer Vision, Deep Learning, Natural Language Processing, I’ll deliver a solution that not only meets your expectations but is also scalable, efficient, and cleanly coded. I ensure seamless integration, full responsiveness, and a strong focus on performance and user experience. Why Choose Me: - 10 years of experience delivering high-quality web and software projects - Deep understanding of Python and related technologies - Strong communication and collaboration skills - A proven track record — check out my freelancer portfolio. - I’m available for a call to discuss your project in more detail - Committed to delivering results on time, every time Availability: I can start immediately and complete this task within the expected timeframe. Looking forward to working with you, Harsh! Best regards, Ali Zahid India
₹1.500 INR 7 gün içinde
4,3
4,3

As an accomplished developer with over 8 years of experience, I have a deep understanding of machine learning principles and Python, two crucial elements for building the Advanced ISL Recognition Deep-Learning System. My skills extend beyond just theory; I have a proven record of crafting dynamic and robust web and app solutions, giving me the technical proficiency needed to actualize your project. I'm particularly excited about this unique project because it has the potential to make a significant impact in improving communication for speech-impaired individuals. I understand the limitations of existing ISL tools and the necessity to address them adequately. Given that, I am confident in my ability to construct a unified recognition engine that covers words, alphabets, and numbers, overcoming issues such as limited vocabulary and high latency. Additionally, my familiarity with different deep-learning models will be invaluable in training our multi-branch neural networks for different gesture types, streamlining your project timelines significantly. As we navigate through the module construction stage, my extensive knowledge of frontend tech stacks including React.js and Redux will guarantee smooth cross-platform integration without sacrificing performance or reliability. Let's turn this brilliant idea into a game-changing reality!
₹6.000 INR 7 gün içinde
2,9
2,9

Hi, I will develop the Intelligent Indian Sign Language Recognition System (ISL-R) as outlined in your technical specification, delivering a functional, real-time system for mixed gesture recognition. You will receive: 1. A complete ISL dataset structured with 500–1000 samples per class for words, alphabets, and numbers, formatted as per your JSON specification. 2. Trained multi-branch neural network models (CNN for characters/numbers, Bi-LSTM for words) optimised for real-time inference. 3. A working real-time application with the full pipeline: MediaPipe pose extraction → feature encoding → model inference → token assembly → sentence formation with debounce logic → text/speech output. 4. Full documentation and source code (Python/TensorFlow), ready for deployment on web or embedded platforms. The system will accurately recognise mixed sequences like "I love you 3000" and output coherent text and speech, addressing the core gaps in current ISL tools. Hassaan Namdar PhD Candidate (PT) | MSc (UK) Certified: Wharton & UC Berkeley
₹7.000 INR 7 gün içinde
2,5
2,5

I bring 13 years of professional experience delivering high-quality results. I have strong expertise in all the required skills listed for this project. My approach ensures accuracy, clear communication, and timely delivery. I am confident I can exceed your expectations with efficient, reliable work. Looking forward to contributing to your project—ready to begin immediately.
₹7.000 INR 7 gün içinde
2,6
2,6

As a seasoned Full Stack Developer with a strong background in AI integration, I am confident in delivering the caliber of project you're seeking. With over six years of experience, my expertise extends across domains like chatbot development, AI automation, SaaS platforms and API integrations - all of which will be vital to your real-time ISL recognition system. One key aspect we share is our emphasis on SOLID data structures. Datasets are the lifeblood of any deep learning system and I assure you I have the capability to create an extensive dataset for this project spanning alphabets, numbers and daily-use words. My team will curate an annotated dataset that supplies the necessary diversity and depth for sophisticated training while ensuring there's no overlap between train, val or test sets. What truly sets me apart though is my holistic approach to development. Beyond crafting a multi-branched neural network and comprehensive dataset, I'll ensure there's platform compatibility, higher execution speed (mitigating high latency) and concise sentence formation/logic - all while maintaining balance with memory consumption for this embedded application.
₹11.500 INR 9 gün içinde
1,8
1,8

Lets chat, a free consultation and no obligation. I understand you need a clean, professional, and user-friendly solution for your "Advanced ISL Recognition Deep-Learning System" project. My skills in PHP, Perl, ASP are a perfect fit for this project. While I am new to freelancer.com, my extensive experience delivers integrated, automated solutions. Regards, TM MOHALE
₹6.312 INR 3 gün içinde
0,0
0,0

Hello, I am interested in developing your Intelligent Indian Sign Language Recognition System (ISL-R). With strong experience in computer vision, deep learning, and real-time AI systems, I can build a unified model that recognizes ISL alphabets, numbers, and common words from live video. I have previously worked on advanced AI projects such as autonomous UGV surveillance vehicles, CNN-based medical classifiers, NLP emotion recognition, and IoT + ML systems, giving me hands-on expertise in pose extraction, temporal modeling, dataset design, and real-time inference. I will deliver: • MediaPipe-based hand-pose extraction • CNN + Bi-LSTM/Transformer models for mixed gestures • Real-time recognition supporting sequences • Sentence formation + optional text-to-speech • Clean, optimized, well-documented code I can start immediately and ensure a fast, accurate, and scalable ISL system.
₹8.992,81 INR 10 gün içinde
0,0
0,0

I worked as a Software Development Intern at LG Soft India for 10 months, gaining experience in C++ development for embedded systems and HbbTV platforms. My work involved creating and executing unit test cases using GTest to ensure reliable software performance. I contributed to both backend and frontend development of the LG Test Suite application, adding new features and improving functionality. I also collaborated with IISc Bangalore on a Deep Learning project, where I integrated a machine learning model into the LG Test Suite to evaluate video and audio quality of LG TVs. This role strengthened my skills in software development and applied ML.
₹7.000 INR 7 gün içinde
0,0
0,0

I have already worked on Indian Sign Language (ISL) recognition as part of my research, using Kaggle datasets for A–Z and 0–9, and building CNN-based models with image preprocessing, training, evaluation, and real-time prediction. I can develop an accurate and optimized ISL recognition system for you, including dataset handling, model training, webcam-based real-time detection. I’m confident I can deliver a reliable, well-structured solution that meets your project requirements and can start immediately.
₹7.000 INR 15 gün içinde
0,0
0,0

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