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.
Stay updated with the latest advancements in calibration technology, industry trends, and expert insights from our engineering team.
The accuracy of your camera calibration board directly affects the accuracy of your calibration results. Many people use printed cardboard patterns or paper boards attached to boxes—but these DIY solutions introduce systematic errors that compromise your entire vision system. Learn why professional-grade calibration boards with aerospace-grade backing materials are essential for achieving sub-millimeter accuracy in modern computer vision applications.
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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.
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.
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.
Why real-time calibration is harder than it looks. Learn why most SLAM papers get it wrong and when dynamic calibration actually works.
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.
How our specialized IR backlit calibration boards overcome the unique challenges of calibrating thermal and night vision cameras.
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.
Event cameras can't see static patterns. Learn about flickering backlit boards, IR solutions, and retroreflective marker systems for robust event camera calibration.