PIV Standard Image

Objective

The PIV Standard Images are provided for the evaluation of PIV techniques.
For two-dimensional analysis click here.
This directory contains the transient three-dimensional images.
The PIV technique is roughly classified into two steps, i.e., Visualization and Image Processing. The Image Processing includes image enhancement, particle detection, particle tracking, image cross correlation, velocity averaging and erroneous evaluation. To evaluate the Image Processing technique for PIV especially for transient 3D, the following standard images are generated.
The standard images contain the generated images (RAW and BMP format), correct vector information (pixel/interval) and correct particle 3D locations.

NEWS

When you use the 3D standard images, please refer the following paper.

Okamoto, K., Nishio, S., Kobayashi, T., Saga, T., Takehara, K., 2000, "Evaluation of the 3D-PIV Standard Images (PIV-STD Project)," J. Visualization, 3-2, 115-124.
The evaluation protocol for the 3D-PIV standard images by Dr. Quenot is available at his web-site. http://www-clips.imag.fr/mrim/georges.quenot/vsj-eval/evaluation.html
The additional calibration images for the Stereo-PIV images (#331,#337) is now available. The calibration plate moves forward/backward to capture the several images.

Standard Images

Transient 3D flow field with slit light sheet(300 series)

#301 (Jet shear flow)

Number of particles = 4000
Maximum particle displacement = 10 pixel/interval
Maximum out-of-plane displacement = 15% of laser thickness/interval
Particle diameter = about 5 pixel
Number of images = 10(A), 51(B) and 145(C)

#302 (Jet shear flow)

Number of particles = 1000
Maximum particle displacement = 10 pixel/interval
Maximum out-of-plane displacement = 15% of laser thickness/interval
Particle diameter = about 5 pixel
Number of images = 10(A), 51(B) and 145(C)

Stereo-PIV images

#331 (Jet Shear flow)

Laser Sheet Illumination
Three-cameras are on the holizontal plane
Camera calibration Images are imX999.raw
(x,y,z) = (-0.8:0.8, -0.8:0.8, 0.0) 81 points
Additional Calibration images are available.

#337 (Impinging Jet flow)

Laser Sheet Illumination
Three-cameras are on the holizontal plane
Camera calibration Images are imX999.raw
(x,y,z) = (-1.0:1.0, -1.0:1.0, 0.0) 121 points
Additional Calibration images are available.

Transient 3D flow field from 3 angles with wall refrection

#351 (Jet Shear flow)

Number of particles = 2000
Camera calibration Images are imX999.raw
(x,y,z) = (-0.8:0.0:0.8, -0.8:0.0:0.8, -0.8:0.0:0.8) 27 points
Three-cameras are on the holizontal plane

#352 (Jet Shear flow)

Number of particles = 300
Camera calibration Images are imX999.raw
(x,y,z) = (-0.8:0.0:0.8, -0.8:0.0:0.8, -0.8:0.0:0.8) 27 points
Three-cameras are on the holizontal plane

Transient 3D flow field from 3 angles with unknown wall refrection

#371 (Jet Shear flow)

Number of particles = 500
Camera calibration Images are imX999.raw
(x,y,z) = (-0.4:0.0:0.4, -0.4:0.0:0.4, -0.4:0.0:0.4) 27 points
camera parameters are not known

#377 (Jet Impinging flow)

Number of particles = 500
Camera calibration Images are imX999.raw
(x,y,z) = (-0.2:0.0:0.2, -0.2:0.0:0.2, -0.2:0.0:0.2) 125 points
cameras are set at the bottom of impinging plates

The volume of the above standard images are close to 50MB/one series. The CD-R for the PIV-STD3D is available.
Please submit the following information to us, then we will ship the CD-R via mail. It will take about two to four weeks to send the CD-R.

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