AnyForm Technical Architecture

Open Source Components

📷 OpenCV BSD 3-Clause

Core computer vision library for image processing, edge detection, and perspective correction.

Real-time edge detection and contour detection
Homography transforms for perspective correction
Image stitching for multi-shot documents
Cross-platform support (iOS, Android, Web)

📱 WeScan (iOS) MIT

Swift library for document scanning with real-time edge detection on iOS.

Native iOS camera integration
Real-time document boundary detection
Perspective correction and enhancement
Multi-page document support

🤖 Document-Scanner-Android MIT

Android library providing document capture with OpenCV integration.

Camera2 API integration
Real-time edge detection overlay
Automatic perspective correction
Image quality optimization

🔤 Tesseract OCR Apache 2.0

Google-maintained OCR engine for text extraction and recognition.

100+ language support
High accuracy text recognition
Mobile optimized versions
Custom training capabilities

🖼️ Leptonica BSD-style

Document-specific image processing library optimized for text documents.

Skew detection and correction
Document-optimized noise removal
Binarization for text clarity
Used internally by Tesseract

🌐 OpenCV.js BSD 3-Clause

Browser-based computer vision for real-time processing and preview.

Client-side image processing
Real-time camera feed processing
WebAssembly optimized performance
Interactive document overlays

AWS Infrastructure Services

🐳 Amazon ECS

Container orchestration for AI processing workloads and document analysis.

Auto-scaling document processing containers
GPU-optimized instances for AI models
Fault-tolerant processing pipeline
Integration with other AWS services

☁️ CloudFront CDN

Global content delivery network for fast form loading and custom domains.

Global edge locations for fast loading
Custom domain support (forms.company.com)
SSL certificate automation
Static asset optimization

🗄️ Amazon S3

Scalable object storage for documents, processed images, and form templates.

Original document storage
Processed image storage
Form template and asset storage
Secure presigned URL uploads

🌐 Route 53

DNS management and domain validation for custom business domains.

Custom domain DNS management
Domain ownership validation
Health checks and failover
Integration with CloudFront

⚡ Lambda Functions

Serverless computing for lightweight processing and API orchestration.

Webhook delivery processing
Image preprocessing pipeline
API request routing
Cost-efficient scaling

🗃️ DynamoDB

NoSQL database for form metadata, user sessions, and processing status.

Form metadata and configuration
User session management
Processing job status tracking
Auto-scaling performance

🔗 API Gateway

Managed API service for request routing, authentication, and rate limiting.

RESTful API endpoint management
Request authentication and authorization
Rate limiting and throttling
API documentation and testing

🔄 Step Functions

Workflow orchestration for complex document processing pipelines.

Multi-step processing workflows
Error handling and retries
Parallel processing coordination
Visual workflow monitoring

System Architecture Flow

📱 Mobile Capture

Native iOS/Android apps with OpenCV + WeScan/Document-Scanner

🖼️ Image Processing

Edge detection, perspective correction, multi-shot stitching

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☁️ S3 Upload

Secure presigned URL upload of processed images

⚡ Lambda Trigger

S3 event triggers processing pipeline

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🐳 ECS Processing

AI document analysis, field detection, form generation

🤖 LLM Analysis

Field classification, role assignment, auto-fill mapping

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🌐 CloudFront Hosting

Custom domain form hosting with CDN acceleration

🗃️ DynamoDB Storage

Form metadata, user data, processing status

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👤 User Form Fill

Responsive web form with auto-fill and validation

🔗 Webhook Processing

Custom data transformation and delivery

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📧 Email Delivery

SES integration for form notifications

📠 Fax Delivery

Third-party fax API integration

🔗 API Integration

CRM/ERP system data posting

// Example processing pipeline configuration
{
  "pipeline": {
    "trigger": "S3 object upload",
    "steps": [
      {
        "name": "image_preprocessing",
        "service": "Lambda",
        "function": "enhance-document-quality"
      },
      {
        "name": "ai_analysis",
        "service": "ECS",
        "container": "document-analyzer",
        "gpu": true
      },
      {
        "name": "form_generation",
        "service": "Lambda",
        "function": "generate-web-form"
      },
      {
        "name": "cdn_deployment",
        "service": "CloudFront",
        "domain": "custom-domain-support"
      }
    ]
  }
}
            

Complete Technology Stack

Client-Side Technologies

iOS Native App

Swift + WeScan + OpenCV iOS framework for professional document capture

Android Native App

Kotlin + Document-Scanner-Android + OpenCV4Android for cross-platform consistency

Web Interface

React + OpenCV.js for real-time preview and form interfaces

Image Processing

Leptonica + Tesseract for document-optimized enhancement and OCR

AWS Cloud Infrastructure

Compute Services

ECS for AI processing, Lambda for API functions, Step Functions for workflows

Storage & Database

S3 for documents/assets, DynamoDB for metadata, RDS for user accounts

Networking & CDN

CloudFront for global delivery, Route 53 for custom domains, API Gateway for APIs

AI & ML Services

Bedrock for LLM integration, custom models on ECS, Textract for enhanced OCR

Technical Architecture Overview