Istra4D V4.10
Release Note
Dantec Dynamics is pleased to announce the release of
Istra4D V4.10! This new software version is packed full of newfeatures & functionalities for (camera) measurement acquisition,correlation evaluation & post-processing visualization.
New features include:• Point Tracking• Multicamera Subset Reference Tracking (MSURET)• Recording Procedure Protocol Enhancements• Advanced Triggering Functionality• CXP-12 Camera Hardware Integration• Bilinear Projective Shape Correlation• PythonTM Scripting, and• Camera Crosshair Alignment Marking
Point Tracking allows users to track an unlimited number ofindividual subsets/facets as discrete points. Using the DIC
algorithm backbone, anything that has a surface feature (ie. alocal contrast gradient) can be tracked. Users can makeadvanced plots of points for absolute position, relative
displacement, velocity, and acceleration in Istra4D of one or
multiple points. Users can also plot multiple variables using preinstalled Istra4D plotting templates, or you can customize &make your own plots using PythonTM Scripting. Istra4D Point
Tracking is great for motion & vibration analysis, where points ofinterest are all that is needed.
Camera 1

Camera 2

Camera 3

Camera 4

Step 12

Step 4

Step 0

Camera 0

Step 18

Multicamera Subset Reference Tracking (MSURET) is afeature that allows a subset/facet to be continually tracked
throughout the complete multicamera setup, even if the subset
is no longer visible in the reference camera pair. As such, asubset can be tracked wherever it goes throughout a test,
provided it can be seen. MSURET is an important feature,especially for large, full-scale tests of motion analysis, impact,
ballistic, torsion, and fatigue testing.

Recording Procedure Protocol Enhancements is anextended functionality of the Istra4D recording procedure that
now incorporates an array of user-definable, pre-installed
templates. Frame loop blocks can now be; switched between
one another, commenced in any order, and even started inparallel. The functionality enhancement now allows for complex
testing to be performed, specifically; fatigue, endurance &operational testing, whereby triggered events need to be flexible
based on unexpected & random points of specimen failure, butalso in the optimized acquisition of data based on long-duration
testing.
Advanced Triggering Functionality extends the current
options of acquisition triggering within the recording procedure.
Triggers can now do more than just respond to analog signals
and frame count indexes… A trigger can be set based on aframe loop reaching a specific number of activation intervals. Atrigger can be set with count variables that determine which
trigger condition is active or inactive based-off another frame
block. A trigger can be set based off the activation of an
external software/hardware signal. Or even, customprogrammed using PythonTM Scripting based off recorded
signals via the new “External Evaluation Trigger”.
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Configuration:
Analog channel val e loat

thonnter reter

stra
val ator trigger res onse boologging ile
eval ator error log.t t

val ator scri t ile.

Bilinear Projective Shape Correlation is a new subset/facet
shape function that significantly improves the accuracy (reduces
the measurement uncertainty), particularly for larger subsets>30px, but also for DIC stereo rigs with a large stereo-angle,
and measurements involving full-body movement. The“standard” correlation model that is sed or C is known as
the “Bilinear” s bset sha e model, which incorporates affine &distortion shape transformations. The issue with this “standard”
subset shape model is that the irregular projective distortion ofmodeling a perspective subset shape between two cameras
often does not accurately capture the real subset shape.
All new CXP-12 cameras now run fully integrated with Istra4D V4.10. Irrespective of using the recording
procedure or ring-buffer recording modes, these 50 Gbps cameras have the highest continuous-mode
bandwidth compared to any other type of camera technology. The advantage of these cameras is thatthey can be used for high-speed testing, both also low-speed quasi-static testing, thus providing agreater application scope than burst-mode cameras.

Camera Crosshair Alignment Marking in Istra4D V4.10 helps
users with centering the camera image with respect to thesample. A real-time crosshair alignment marking tool isavailable that virtually marks the center of the Region-of-Interst(RoI) in the image, and also marks out the middle-quarter
sections within the RoI area.
Prospective Customers & Users of Dantec

Current Customers & Users of Dantec

Software Upgrade User Purchasers of Dantec

Dynamics‘ DIC are entitled to participate inDynamics‘ DIC are entitled to participate in theDynamics‘ DIC are entitled to the following

the following three eLearning modules:

following five additional eLearning modules:

additional eLearning module:

DIC
Int.
User
Training
Course

DIC
Basic
User
Training
CourseIstra4D
SW &DemoData
Download
ModuleDIC
Applications
ModuleHW
Service &Support
ModuleApp.
ScriptingModules

DIC Help &User
Community

DIC News &Annoucmts.

AdvancedUser
Training(English)

Dantec Dynamics has the approach that training, and support
need to be available to anyone, anytime, and anywhere for bothcurrent and prospective users alike. The eLearning platform
gives users the possibility to access: user training courses, SW
downloads, demonstration data, application scripting modules,
support, help & support, and also, HW service functions.
New to Istra4D V4.10 is the DIC Intermediate User
Training Course.

The Istra4D DIC application scripting functionality allows users
to initiate custom, numerical computations of application dataseries. V5 of the application scripting modules includes newfeatures, including; Poisson Ratio Analysis, Strain Tensor
Comparison, Point Tracking, Coefficient of Thermal Expansion(CTE) and Warpage, and Operational, Deflection, and Shape(ODS) vibration analysis using STFT.

1.

Youngs Modulus
Yield Point
0.2% Offset
UTS
Fracture Point
Uniform (Prop.) Elong.
(Ag)
2. Strain Tensor Comp.
• Engineering / GreenLaGrangian / TrueLogarithmic / Almansi
3. Poisson Ratio• Finite Grid Analysis
4. Strain Rate
5. Plastic Strain Ratio

1.

Coefficient of ThermalExpansion (CTE) –Advance GUI and using
Simple Line or Polygon

2.

Warpage (Zdisplacement & Zcontour)

1.

Forming Limit Curve(FLC) diagram withmajor ( 1) and minor ( 2)true strains according toISO 12004-2 using
default or manualparameters.

1.

1.

••
•
•
•

2.
3.

Distance & Angle
between Two Points
Rotation Analysis(Wobbling)
Displacement,Velocity &Acceleration
Calculation of One
Point or (Relative)
Between Two Points

2.

Crack Propagation Analysis• Crack Detection• Trace, Propagation, Length &Velocity
Crack Opening Analysis• Trace, Propagation, Length,
Width & Velocity

1.

Natural (Resonant)Frequencies and Mode
Shapes using Operation
Deflection & Shape (ODS)

1.

Infrared (IR) camera
analysis with DIC
measurement data
including; coordinate
system synchronization,common point selection,
overlay and plotting.

*New inIstra4D V4.10

For more information please contact:
Dantec Dynamics GmbH
Kaessbohrerstrasse 18, 89077 Ulm, Germany
Tel.: +49-731-850-715-00
E-mail: product.support@dantecdynamics.com
Internet: www.dantecdynamics.com.
Subject to change without notice. Copyright © 2023.
Dantec Dynamics. All Rights Reserved

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