Calibration Board Size
Technical Insight

Do We Need Exact Calibration Board Block Size?

Stop wasting time measuring squares with calipers. Learn why absolute block size doesn't matter for lens calibration, what actually does matter, and where people waste effort on the wrong things.

CW
CalibWorks Team
7 min read
Low Residual Calibration
Technical Insight

Is Low Residual Really Good Calibration?

Many believe low residual error equals good calibration—but this is a dangerous misconception. Without sufficient observability in the parameter space, low residuals are meaningless. Learn why most open-source tools ignore this critical factor.

CP
Dr. Chanoh Park
10 min read
Circular Calibration Pattern
Technical Guide

When to Use Circular Calibration Boards

Why checkerboards fail for wide FOV lenses and how circular patterns solve the out-of-focus problem. Essential knowledge for calibrating extreme wide-angle and fisheye cameras.

CW
CalibWorks Team
9 min read
Real-Time Dynamic Calibration
Research Paper

Novel Approach to Real-Time Dynamic Calibration

Why real-time calibration is harder than it looks. Learn why most SLAM papers get it wrong and when dynamic calibration actually works.

CW
CalibWorks Team
12 min read
Calibration Pattern Comparison
Technical Deep Dive

What Is the Best Calibration Pattern for Lens Calibration?

Comprehensive comparison of checkerboard, circular, and random micro-dot patterns. Learn why random dots solve problems that traditional patterns can't—and why backlit boards change everything.

CW
CalibWorks Team
11 min read
IR Camera Calibration
Technical

Solving the IR Camera Calibration Challenge

How our specialized IR backlit calibration boards overcome the unique challenges of calibrating thermal and night vision cameras.

BS
Ben Smith
10 min read
Optical Center Estimation
Technical Deep Dive

Why Good Lenses Make Optical Center Estimation Harder

The paradox: high-quality low-distortion lenses make cx, cy estimation harder than cheap fisheye lenses. Learn why observability matters more than lens quality for parameter estimation.

CW
CalibWorks Team
10 min read
Event Vision Calibration
Technical Best Practices

Event Vision Camera Calibration: Best Practices and Solutions

Event cameras can't see static patterns. Learn about flickering backlit boards, IR solutions, and retroreflective marker systems for robust event camera calibration.

CW
CalibWorks Team
12 min read