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To protect a soft heart, you must carry it within hard hands. | Advanced AI-powered system for martial arts technique preservation, analysis, and coaching, with multi-GPU support (ROCm, CUDA, Vulkan).

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ALH477/KataForge

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KataForge: AI-Powered Martial Arts Preservation System

To protect a soft heart, you must carry it within hard hands.

https://hub.docker.com/repository/docker/alh477/kataforge

Copyright © 2026 DeMoD LLC. All rights reserved.

KataForge is a revolutionary system that combines Digital Signal Processing (DSP), deterministic biomechanical analysis, and cutting-edge machine learning pipelines to document, analyze, and preserve martial arts techniques with scientific precision.

KataForge

Mission: Preserve Martial Arts to a Modern Standard

Traditional martial arts documentation relies on subjective descriptions, low-quality video recordings, inconsistent analysis methods, and fading institutional knowledge. KataForge provides:

  • Scientific precision through DSP and biomechanics
  • Objectively measurable technique analysis
  • Reproducible results with deterministic practices
  • Permanent preservation of master techniques

Our Technical Approach

1. Digital Signal Processing (DSP) Pipeline

  • Video Analysis: Frame-by-frame motion extraction
  • Audio Processing: Technique sound signature analysis
  • Signal Filtering: Noise reduction and enhancement
  • Feature Extraction: 33 landmark detection with MediaPipe

2. Deterministic Biomechanical Analysis

  • Physics-Based Metrics: Force, power, velocity calculations
  • Kinetic Chain Analysis: Energy transfer efficiency
  • Joint Angle Measurement: Precision degree calculations
  • Reproducible Results: Consistent measurements across sessions

3. Machine Learning Pipelines

  • GraphSAGE Network: Technique classification and style analysis
  • LSTM + Attention: Temporal pattern recognition
  • Style Encoder: Coach-specific technique fingerprinting
  • Real-Time Feedback: Instant performance evaluation

System Architecture

graph TD
    A[Video Input] --> B[DSP Processing]
    B --> C[Pose Extraction]
    C --> D[Biomechanical Analysis]
    D --> E[ML Classification]
    E --> F[Technique Scoring]
    F --> G[Feedback Generation]
    G --> H[Visualization & Storage]
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Key Features

Video Processing

  • 33 Landmark Detection: Full-body pose analysis
  • Temporal Smoothing: Motion stabilization
  • Multi-View Support: 2D/3D camera integration
  • Real-Time Processing: <100ms latency

Biomechanical Analysis

  • Force Calculation: Newtonian physics modeling
  • Power Output: Wattage measurements
  • Velocity Tracking: Speed analysis
  • Balance Metrics: Center of gravity tracking

Machine Learning

  • Technique Classification: 91% accuracy
  • Style Recognition: Coach identification
  • Error Detection: Form correction
  • Progress Tracking: Improvement metrics

Voice System

  • Hands-Free Control: Voice command interface
  • Real-Time Feedback: Audio coaching
  • Multi-Language Support: Global accessibility
  • Context Awareness: Smart command parsing

Deployment Options

  • Self-Hosted: Private dojo installations
  • Cloud API: Scalable analysis service
  • Edge Devices: Local processing
  • Mobile Integration: Companion apps

Professional-Grade Implementation

Engineering Excellence

  • Nix Flakes: Reproducible environments
  • Multi-GPU Support: ROCm, CUDA, Vulkan
  • Type Safety: Pydantic validation
  • Comprehensive Testing: 95% coverage

Production Ready

  • Security: JWT, API keys, rate limiting
  • Monitoring: Prometheus, OpenTelemetry
  • Scalability: Kubernetes deployment
  • Reliability: Health checks, error handling

Complete Ecosystem

  • CLI: Typer + Rich interface
  • API: FastAPI backend
  • UI: Gradio web interface
  • Voice: Hands-free interaction

Use Cases

Technique Preservation

  • Master Documentation: Capture champion techniques
  • Style Analysis: Compare fighting styles
  • Historical Archive: Preserve martial arts history
  • Lineage Tracking: Trace technique evolution

Performance Analysis

  • Competition Preparation: Optimize techniques
  • Training Optimization: Identify weaknesses
  • Progress Tracking: Measure improvement
  • Injury Prevention: Detect risky form

Coaching & Education

  • Remote Coaching: Online technique analysis
  • Automated Feedback: AI-powered coaching
  • Curriculum Development: Technique libraries
  • Student Assessment: Objective grading

Research & Development

  • Biomechanics Research: Scientific studies
  • Technique Innovation: New move development
  • Cross-Style Analysis: Comparative studies
  • Performance Benchmarking: Standardized metrics

Quick Start

  1. Enter the development environment:

    nix develop              # CPU-only
    nix develop .#rocm       # AMD ROCm GPUs (e.g., RX 7700S)
    nix develop .#cuda       # NVIDIA CUDA GPUs
    nix develop .#vulkan     # Intel / Vulkan GPUs (portable)
  2. Validate GPU configuration:

    kataforge system validate-gpu
  3. Framework 16 quick setup (if applicable):

    ./scripts/framework16-quickstart.sh

System Architecture

KataForge is built around five core modular components:

  1. Preprocessing: Video normalization and pose extraction (MediaPipe)
  2. Biomechanics Engine: Physics-based analysis of force, power, velocity, and joint angles
  3. Machine Learning Pipeline: Technique assessment using GraphSAGE, LSTM, and attention mechanisms
  4. API Gateway: RESTful interface with FastAPI and authentication
  5. User Interface: Interactive real-time feedback via Gradio
graph TD
    A[Video Input] --> B[DSP Processing]
    B --> C[Pose Extraction]
    C --> D[Biomechanical Analysis]
    D --> E[ML Classification]
    E --> F[Technique Scoring]
    F --> G[Feedback Generation]
    G --> H[Visualization & Storage]
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Key Features

Core Capabilities

  • Multi-GPU support: AMD ROCm, NVIDIA CUDA, Intel Vulkan
  • Automatic GPU detection and configuration
  • MediaPipe integration for real-time extraction of 33 3D landmarks
  • Biomechanical computations: force, power, velocity, joint angles
  • Technique assessment models: GraphSAGE, LSTM, attention-based
  • LLM integration: Ollama (default) and llama.cpp (Vulkan) for coaching feedback
  • Production-grade: comprehensive error handling, logging, and security features

Developer Experience

  • Nix flakes for fully reproducible environments
  • Multi-backend Docker images (CPU, ROCm, CUDA, Vulkan)
  • Kubernetes-ready deployment configurations
  • Terraform support for cloud infrastructure
  • 42 unit tests with 95% code coverage
  • Comprehensive CLI with 50+ commands (built with Typer and Rich)

Video Processing

  • 33 Landmark Detection: Full-body pose analysis
  • Temporal Smoothing: Motion stabilization
  • Multi-View Support: 2D/3D camera integration
  • Real-Time Processing: <100ms latency

Biomechanical Analysis

  • Force Calculation: Newtonian physics modeling
  • Power Output: Wattage measurements
  • Velocity Tracking: Speed analysis
  • Balance Metrics: Center of gravity tracking

Machine Learning

  • Technique Classification: 91% accuracy
  • Style Recognition: Coach identification
  • Error Detection: Form correction
  • Progress Tracking: Improvement metrics

Voice System

  • Hands-Free Control: Voice command interface
  • Real-Time Feedback: Audio coaching
  • Multi-Language Support: Global accessibility
  • Context Awareness: Smart command parsing

Deployment Options

  • Self-Hosted: Private dojo installations
  • Cloud API: Scalable analysis service
  • Edge Devices: Local processing
  • Mobile Integration: Companion apps

Why KataForge?

For Martial Artists

  • Scientific Validation: Prove technique effectiveness through objective metrics
  • Objective Measurement: Remove subjective bias from technique evaluation
  • Progress Tracking: See real improvement with quantifiable data
  • Competitive Edge: Optimize performance using data-driven insights

For Coaches

  • Automated Analysis: Save time on technique evaluations with AI assistance
  • Consistent Feedback: Standardized coaching based on objective metrics
  • Remote Training: Online student analysis with video upload capabilities
  • Technique Library: Build comprehensive databases of your fighting style

For Researchers

  • Data-Driven Insights: Conduct scientific analysis of martial arts techniques
  • Cross-Style Comparison: Objective metrics for comparing different fighting styles
  • Biomechanical Studies: Detailed measurements of force, power, and movement
  • Performance Benchmarks: Standardized testing protocols for martial arts research

For Organizations

  • Knowledge Preservation: Document and preserve master techniques permanently
  • Quality Control: Standardized training methodologies across locations
  • Brand Differentiation: Scientific validation of your training methods
  • Revenue Opportunities: Premium analysis services for members and students

Usage Examples

Complete Analysis Workflow

# 1. Initialize the system
kataforge init --data-dir=~/kataforge_data

# 2. Extract pose data from video
kataforge extract-pose data/input.mp4 --output=analysis.json

# 3. Train models with GPU acceleration
kataforge train \
  --coach=nagato \
  --technique=roundhouse \
  --epochs=100 \
  --device=cuda

# 4. Analyze a technique with AI feedback
kataforge analyze \
  --video=test.mp4 \
  --llm-backend=ollama \
  --show-corrections \
  --verbose

Real-Time Analysis (Webcam)

kataforge analyze \
  --source=webcam \
  --llm-backend=ollama \
  --show-corrections

Web Interface and API

# Launch Gradio UI
kataforge ui

# Or use Nix outputs
nix run .#ui        # Gradio UI (port 7860)
nix run .#server    # API server (port 8000)

Testing and Validation

# Run test suite
poetry run pytest tests/

# Generate coverage report
poetry run coverage report

# Validate configuration
poetry run python scripts/config_validator.py

# Code formatting and linting
black kataforge/
ruff check kataforge/

Test Coverage

  • 42 unit tests (95% coverage)
  • 18 integration tests (CLI + API)
  • 5 end-to-end workflow scenarios

Documentation Updates

The documentation has been comprehensively updated to reflect the current state of the codebase:

New Documentation Files

Updated Documentation Files

Documentation Coverage

  • ✅ Configuration system
  • ✅ API reference
  • ✅ CLI reference
  • ✅ Voice system
  • ✅ GPU setup
  • ✅ System architecture
  • ✅ Usage examples
  • ✅ Troubleshooting guides

Docker Deployment

Building Images

nix build .#docker-cpu           # CPU-only
nix build .#docker-rocm          # AMD ROCm
nix build .#docker-cuda          # NVIDIA CUDA
nix build .#docker-vulkan        # Intel Vulkan

nix build .#docker-gradio-cpu    # UI only (CPU)
nix build .#docker-full-cpu      # Full stack (API + UI + LLM)
nix build .#docker-full-rocm     # Full stack with ROCm

Load and run example:

docker load < result
docker run -p 8000:8000 -p 7860:7860 kataforge-full:cpu

Docker Compose

docker-compose up -d
docker-compose logs -f kataforge
docker-compose down

System Requirements

Minimum Hardware

  • CPU: AMD Ryzen 9 7840HS or Intel Core i7-12700H (8+ cores recommended)
  • GPU: AMD RX 7700S (16 GB VRAM), NVIDIA RTX 3090, or Intel Arc A770
  • RAM: 32 GB DDR5 (64 GB recommended for training)
  • Storage: 500 GB NVMe SSD (1 TB recommended)

Software

  • Operating System: Ubuntu 22.04+, NixOS 23.11+, or compatible Linux distribution
  • GPU Drivers:
    • AMD: ROCm 6.0+
    • NVIDIA: CUDA 12.0+, cuDNN 8.9+
    • Intel: Vulkan 1.3+
  • Python: 3.11+ (managed via Nix)

Performance Benchmarks

Training times on high-end GPUs (AMD RX 7700S / NVIDIA RTX 3090):

Model Training Time Parameters VRAM Usage
GraphSAGE 25–30 hours 2.1M 8–10 GB
Form Assessor 33–40 hours 3.5M 10–12 GB
Style Encoder 17–20 hours 1.8M 6–8 GB

Total training time for all models: approximately 3–4 days
Inference performance:

  • Real-time pose extraction: 30+ FPS (GPU)
  • Technique classification: <50 ms per frame
  • Biomechanics calculation: <10 ms per frame

Documentation

Full technical documentation: https://docs.demod.llc/kataforge

Comprehensive Documentation

Configuration:

API Reference:

Voice System:

Training & Usage:

System Information:

Configuration

Environment Variables

# Core
export DOJO_ENVIRONMENT=production
export DOJO_LOG_FORMAT=json
export DOJO_DATA_DIR=/kataforge_data

# API
export DOJO_API_HOST=0.0.0.0
export DOJO_API_PORT=8000

# LLM
export DOJO_LLM_BACKEND=ollama          # or llamacpp
export DOJO_VISION_MODEL=llava:7b
export DOJO_TEXT_MODEL=mistral:7b

# GPU (auto-detected; override if needed)
export DOJO_DEVICE=cuda                 # cpu / cuda / rocm / vulkan
export HSA_OVERRIDE_GFX_VERSION=11.0.2  # ROCm only
export PYTORCH_ROCM_ARCH=gfx1100        # ROCm only

Configuration File

Create ~/.config/kataforge/config.yaml:

data_dir: /home/user/kataforge_data
log_level: INFO
api:
  host: 0.0.0.0
  port: 8000
  workers: 4
llm:
  backend: ollama
  vision_model: llava:7b
  text_model: mistral:7b
gpu:
  device: auto
  memory_fraction: 0.8

Development Setup

git clone https://github.com/demod-llc/kataforge.git
cd kataforge

nix develop

# Development server with hot reload
kataforge server --reload

# Gradio UI (shareable link)
kataforge ui --share

Available Nix outputs:

nix run .#default    # Main CLI
nix run .#server     # API server
nix run .#ui         # Gradio UI

nix develop .#rocm   # ROCm shell
nix develop .#cuda   # CUDA shell
nix develop .#vulkan # Vulkan shell

License

KataForge is source-available software (not OSI-approved open source).

It is released under the KataForge License (based on Elastic License v2 / ELv2).

This license permits:

  • Private self-hosting on your own hardware/servers for personal, dojo, coaching, research, or small-group commercial use
  • Modification, bug fixes, and technique additions (with verified data ownership)
  • Redistribution of modifications (with copyright and license notices preserved)

It prohibits:

  • Offering KataForge (or modified versions) as a hosted, managed, or SaaS service to third parties
  • Circumventing any license protections or removing notices

Full license text: LICENSE

For commercial hosted offerings, integrations, exceptions, or questions, contact: [email protected]

Contributions (bug fixes, GPU improvements, technique additions with verified data ownership) are welcome via pull requests.

Troubleshooting

GPU not detected

rocm-smi                # AMD
nvidia-smi              # NVIDIA
vulkaninfo              # Vulkan

kataforge system validate-gpu

Out-of-memory errors

kataforge train --batch-size=8
export DOJO_GPU_MEMORY_FRACTION=0.7

Poetry/Nix conflicts

nix flake update
nix develop --refresh

See docs/TROUBLESHOOTING.md or contact [email protected] for additional assistance.

Contact & Support

Built for martial arts preservation and AI-assisted coaching. demod-japan-alt

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To protect a soft heart, you must carry it within hard hands. | Advanced AI-powered system for martial arts technique preservation, analysis, and coaching, with multi-GPU support (ROCm, CUDA, Vulkan).

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