Visual Change Detection

Visual ChangeGuard Dashboard

Modern Next.js 16 dashboard for AI-powered visual change detection using OpenCV with multiple visualization modes including overlays, heatmaps, and difference maps

Advanced Change Detection System

Visual ChangeGuard is a modern Next.js 16 dashboard for AI-powered visual change detection using OpenCV. This application detects pixel-level changes between two images and provides multiple visualization modes including change masks, overlays, heatmaps, and difference maps.

Inspired by NVIDIA Visual ChangeNet, perfect for property damage assessment, quality control, infrastructure monitoring, construction tracking, home security, and vehicle care applications.

Platform Stack

Frontend Next.js 16 + TypeScript
Backend Python + Flask
CV Engine OpenCV + NumPy
UI shadcn/ui + Tailwind

Core Capabilities

10 Visualization Modes

Overlay Tab with change overlay and contours, Alpha Overlay. Comparison Tab for side-by-side. Detection Tab with masks, bounding boxes, contours, difference maps. Analysis Tab with heatmaps (JET colormap) and intensity maps (HOT). Advanced Tab with edge detection overlay.

Detailed Analytics

Comprehensive analytics including confidence scores, change percentage calculations, pixel-level statistics, number of distinct change regions detected, and bounding box measurements with area labels for precise tracking.

Advanced Processing

Image preprocessing with resize, grayscale conversion, and Gaussian blur. Absolute difference calculation, threshold application for binary masks, morphological operations to clean noise, and contour detection with multiple visualization options.

Dashboard Interface

Comprehensive pages including dashboard with statistics and quick start, change detection with 10 visualization modes, use cases showcasing 9 real-world applications, gallery for managing saved analyses, and settings for configuration.

Use Case Library

Perfect for property damage assessment in insurance claim processing, quality control in manufacturing defect detection, infrastructure monitoring for roads and bridges, construction progress tracking, home security change detection, and vehicle damage assessment.

Real-time Processing

Fast image processing with progress tracking, real-time visualization updates, and comprehensive error handling. Dual-server architecture with Python backend for OpenCV processing and Next.js frontend for user interface.

Technical Specifications

Framework
Next.js 16 + App Router
Language
TypeScript
Backend
Python 3.8+ + Flask
CV Library
OpenCV + NumPy
UI Components
shadcn/ui
Styling
Tailwind CSS
Icons
Lucide Icons
Image Processing
Pillow + Base64

Getting Started

Quick setup guide for Visual ChangeGuard

1

Install Frontend Dependencies

npm install
2

Setup Python Backend

cd python-backend && python3 -m venv venv && pip install -r requirements.txt
3

Start Python Backend

cd python-backend && ./start.sh
4

Start Next.js Frontend

npm run dev

Navigate to http://localhost:3000

Ready to Deploy Visual Change Detection?

Transform your quality control and monitoring capabilities with AI-powered change detection