We are proud to announce the release of Istra4D V4.12, introducing eight powerful new features that enhance projection calibration, live acquisition setup, and correlation evaluation. Designed to support every type of Digital Image Correlation (DIC) system, this latest version marks another milestone in the evolution of Istra4D for materials testing, motion tracking, and vibration analysis.
Measure through and in any medium – accurately & reliably!
The flagship feature of Istra4D V4.12 is the Refractive Index Volumetric (Calibration) Method (RIVM) — a revolutionary advancement in DIC projection calibration. RIVM solves a long-standing industry challenge: measurement distortion when imaging through different media such as glass, into another media, such as water or gas.
RIVM enables users to capture intrinsic, extrinsic, and volumetric calibration parameters independently or simultaneously in one live calibration process, complete with target QR recognition and real-time feedback. For the first time, “through-window” DIC measurements can be performed with full confidence and accuracy.
New Live Acquisition Enhancements
Istra4D V4.12 introduces several productivity-boosting innovations in the Live Acquisition Setup:
- Virtual Gauge Length Indicator
Measure real specimen dimensions directly in live view without starting a correlation — eliminating the need for rulers and simplifying scale verification. The tool also supports repositioning for long-term Structural Health Monitoring (SHM) applications.
- Facet/Subset Selection Save Function
Users can now lock in an optimized facet size in the Speckle Pattern Quality Evaluator and import it directly into the Correlation Evaluation. Combined with auto-detect sizing, selection is easier and more reliable than ever.
- Camera Position Name Overlay
Eliminates confusion in multi-camera setups by allowing users to assign meaningful camera names visible during both acquisition and evaluation. - Custom Reticle Crosshair Sizing
Adjustable crosshairs make it simpler to align long or thin specimens to the optical axis, improving reproducibility and reducing correlation artifacts.
Smarter Correlation and Data Tools
- Grid Spacing Selection Assistance
Automatically recommends optimal grid step size based on facet/subset selection — ending manual calculation and guesswork
Availability
Istra4D V4.12 is available now for all supported Dantec Dynamics DIC systems. Existing users with active software maintenance contracts can upgrade immediately.
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