FtrPIV Ver.3.2
State-of-the-art PIV software

FtrPIV is the fruit of the experience and technical know-how we have accumulated through many consignment measurements.

FtrPIV

This fluid image analysis software can be used in a wide range of business types and forms, by users from inexperienced analysis staff to researchers and specialists. It is completed as a product with high use value enhanced by adding PTV and PIA functions as well.
FtrPIV software was created in-house by our experienced staff. It is always with you and constantly evolving.


Features

  • Balances versatile functionality and smooth operability.

  • High expandability and outstanding performance.

  • Designed for maximum ease of use.

Easy for anyone to use!

Functions from image reading and estimation of displacement to vector arrow drawing are just two clicks away. Even a user who is not familiar with analysis can draw a vector field immediately for later fine adjustment.
You can check a parameter adjustment result immediately, as well as view data in more detail and even extend data using spreadsheet software. This improved intuitive operation performance is not just easy to use. It also deepens the user’s understanding and makes it easy to accumulate technical know-how.

just two clicks


Intuitive estimation of displacement at high speed and with high accuracy!

The basic displacement estimation technique used in FtrPIV is the direct cross correlation (DCC) method. Improvement in computer performance makes it possible to realize this method. In principle it is the simplest and clearest method, and its high accuracy prevents estimation errors attributable to unknown causes and implements estimations with high image fidelity and stability.
FtrPIV also features other powerful methods ready for selection (optical flow method, multi-grid method, multi-correlation method, window deformation method, etc.) according to the image quality.

High speed and accuracy


Another choice for the estimation of displacement: Optical flow method

An experiment using a laser source is popular for PIV measurement, but images requiring flow field estimation do not always have such characteristics. Flow fields can also be estimated from single scenes in a film or easy shooting methods like home videos. FtrPIV implements the optical flow estimation method implemented by Lucas & Kanade.
This excellent technique is well known in the world of pattern recognition and robotics and other kinds of computer vision, and features wide applicability.


Complete support for multiple time-series images

Multiple time-series images under different conditions are usually acquired for comparison in a PIV measurement experiment.
It is not necessary to activate FtrPIV for each experimental condition. This is because one set of time-series images is managed on a single tab page, and tab pages can be freely created. Three-component vectors can also be rebuilt intuitively for stereo PIV.


Powerful batch processing function

The highly flexible batch processing function executes back projection, background processing, PIV calculation, and statistical operation as single tasks. This function powerfully supports the recent increase in the complexity of PIV measurements and their growth in scale. Batch processing can be composed, including unique processing for each user, to execute a series of routine processes at night. The user just needs to check the results the next morning.
This makes business operations efficient. Each task can be easily created via the GUI and used again and again once it is created.
Such a task can also be executed by changing the parameters and the processing object as appropriate.


FtrLFV-E1000

FtrLFV-E1000 is a compact PIV measuring experiment device to visualize and analyze flows in engine cylinder sleeves. It provides support from preparation for imaging to report creation regarding various characteristic values such as mean velocity, turbulence, mean tumble ratio, and mean swirl ratio.

FtrPIV-Cruise

FtrPIV-Cruise is an automatic analysis tool created by making the best use of powerful batch processing functionality. This is a tool for optimizing large-scale PIV analysis work. It was created to meet needs for handling a large volume of data with little operation and individual PIV analysis. It provides support from statistical processing unique to the user to report creation.

PTV and PIA functions integrated into the PIV function

PTV and PIA are commercialized as separate programs, but they are integrated into FtrPIV to implement a great variety of particle image analyses. Part of the functionality of FtrPIV is to estimate displacement at calculation points that can be arranged arbitrarily in an image.
FtrPIV can extract particle images as calculation points and acquire their displacement and feature values.

PTV and PIA functions


Hyper-sonic PIV

This is a new movement destination estimation algorithm supporting our hyper-sonic PIV technology, which implements supersonic flow field analysis in a low-cost system. The newly developed Hyper-sonic PIV is based on our unique technology.
This algorithm estimates a flow field with high accuracy from a first double-exposure image and a second image with an ordinary single exposure.


Dynamic-⊿t

The time interval difference between pairs (delta-t) can be applied to each set of time-series images. Analysis with dynamically varying time intervals can be conducted in the same way as ordinary PIV.


Specifications

Function Specification (Selectable menu item).
Input images file BMP, JPEG, PNG, GIF, TIFF, AVI.
Basic PIV operations Direct Cross Correlation method (DCC), Optical flow method, Multi-correlation method, Multi-grid method.
Advanced PIV operations Window deformation method.
Erroneous vector inspection Maximum light intensity difference, Light intensity standard deviation, Correlation value, Vector length, Comparison with neighborhood median vector, Comparison with neighborhood mean vector, Relationship with neighborhood statistic, The number of valid neighborhood vectors.
Specify calculation region mark Specify GUI tool, Mask file, Auto generate mask image.
Background reduction Simple statistics background (Mean, etc.), Multiple backgrounds (Moving averages), Optimization.
Image processing Fixed kernel filter (Low pass, High-pass, Gaussian, Laplacian, Cross Sobel, Sharpening, Arbitrary kernel), Median filter, Brightness and contrast.
Geometrical conversion Fixed kernel filter (Low pass, High-pass, Gaussian, Laplacian, Cross Sobel, Sharpening, Arbitrary kernel), Median filter, Brightness and contrast.
Geometrical conversion Perspective projection transformation, Affine transformation, Mirroring.
Interpolation for removed erroneous vectors Gaussian interpolation (Spatial).
Statistical calculation from time series data Minimum - Maximum, Arithmetic mean, Median, Standard deviation, Reynolds stress, Turbulence energy, Mean vorticity, Mean flow rate.
Statistical calculation from spatial data Arithmetic mean, Standard deviation, Variance , Area, Instantaneous Flow rate, Vorticity.
Filtering Arithmetic operation of fixed values, Arithmetic operation of statistical values, Band-pass filter (Spatial), Band-pass filter (Temporal).
Alert inspection Search range, Valid vector number, Mean correlation value, Image quality.
Analysis Vector distribution, Search range.
Output of results Text (plt, fld, p3d, csv), Still images, Motion images foreground image, dynamic image.
Visualization Erroneous vector marking, Display legend.
Batch processing Back projection, Background reduction, Statistical calculation, DOS command processing, etc.
Customization Flexible customization (Optional).
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