EO/IR Sensor Simulation

High-Fidelity EO/IR Scene Simulation for AI/ML Training

The performance of Artificial Intelligence and Machine Learning (AI/ML) models in the Electro-Optical and Infrared (EO/IR) spectrum is only as reliable as the data used to train them. Traditional data collection—relying on physical field tests—is often prohibitively expensive, difficult to replicate, and limited by weather or seasonal constraints. This creates a “data gap” where models lack the diverse thermal signatures necessary for mission-critical accuracy.

ThermoAnalytics bridges this gap by providing high-fidelity, physics-based synthetic imagery. By utilizing MuSES (Multi-Service Electro-optic Signature) and the automation power of CoTherm, we enable the generation of massive, radiometrically accurate datasets. This approach ensures that AI/ML algorithms are trained on “ground truth” data that accounts for transient thermal behavior, environmental complexity, and material properties, ultimately driving higher detection probabilities and mission success.

Grayscale infrared scene of mountainous terrain with vehicles, structures, and an aircraft overhead.

How It Works:
The Physics of Signature Prediction

Achieving radiometric accuracy in EO/IR scene simulation requires more than just visual rendering; it requires a deep understanding of transient heat transfer and multi-physics integration. MuSES calculates the temperature of every facet in a scene by solving the complete heat balance equation, accounting for:

Real-world weather data, solar loading (direct and diffuse), and atmospheric transmission.

High-fidelity modeling of engines, electronics, and exhaust plumes to capture realistic thermal “hot spots.”

Detailed multi-bounce reflections and shadowing between the target, the background, and the sky.

To scale this for AI/ML, CoTherm is used to automate the simulation pipeline. It’s a co-simulation and process automation tool that is often used for managing the coupling between MuSES and 3rd party solvers (such as CFD for convective cooling or FEA for structural thermal loads).  But it can also be used to automate a repetitive process like MuSES thermal/infrared predictions over a wide range of variables such as time of day, slant range, weather condition, and vehicle operating state to produce thousands of unique, labeled training images without manual intervention.

Engineering Without Compromise

By integrating ThermoAnalytics into your design workflow, you transform thermal management from a reactive fix into a competitive advantage.

Training an AI to recognize a vehicle at noon in the desert is simple; training it to recognize that same vehicle at 3:00 AM in a rainy forest is a physics problem. The datasets supplied for training need to be diverse, challenging, and realistic enough to effectively supplement existing large-scale real-world datasets, ultimately delivering measurable improvements in detection performance. MuSES allows engineers to simulate target-to-background contrast across an infinite array of diurnal cycles and weather patterns. By providing the AI with high-fidelity “thermal crossovers”—periods where target and background temperatures equalize—developers can refine algorithms to maintain high detection rates even in low-contrast, operationally challenging environments.

Thermal detection view with labeled objects (drone and bird) identified in low-resolution imagery.

For defense applications, simulation is used to evaluate signature reduction strategies before a prototype is ever built. Engineers use MuSES to test how different coatings, heat shields, or active cooling systems impact the detectability of an asset against specific EO/IR sensors. This “digital twin” approach allows for the optimization of thermal suppression systems, ensuring that AI-driven adversarial sensors cannot easily lock onto the platform’s thermal footprint.

Infrared aerial view of terrain with aircraft silhouette and radiance scale.

Autonomous systems often rely on a combination of RGB, LiDAR, and IR sensors. ThermoAnalytics provides a unified simulation environment where multi-spectral signatures are generated from a single thermal model. By simulating how thermal gradients appear on roadways, runways, or obstacles under varying atmospheric conditions, we help developers train fusion algorithms that can navigate safely in degraded visual environments (DVE) where standard optical cameras fail.

Thermal scene showing a person and vehicle on a road with surrounding landscape.

Tools for
Thermal Modeling

Different teams use our tools in different ways. These are the products most commonly used across applications.

Simulate real-world thermal behavior across complete systems with validated, multiphysics accuracy.

Discover Taitherm

Automate, orchestrate, and streamline multiphysics simulation workflows across tools and teams.

Discover CoTherm

Product Extensions

Ensure Performance, Comfort, and Stealth—Before Anything Is Built.