The combination of camera technology and image analysis creates novel measurement methods to industrial applications and academic research. Pixact offers a wide range of measurement services with image-based techniques.

Object size and shape: Image analysis automatically detects objects in the image, classifies them and measures their dimensional and geometrical parameters such as object diameter, principal axes, orientation, roundness, sharpness, surface roughness and fractal dimension. The investigated objects refer to all kind of particles, droplets, bubbles, etc. Read more... Structural analysis: The inner structure of materials can be visualized with transillumination. Trans-illuminated material projections are studied with image analysis to detect and quantify material defects, material uniformity and the type of variance in the material. Additionally, the material surface topography can be determined by means of stereo imaging.
Deformation analysis: High-speed imaging can be used to quantify mechanical deformations. With image analysis techniques, for example local strain/compression fields can be measured. Motion analysis: Motion analysis tracks objects in a sequence of images and constructs their trajectories in two- or three-dimensions. Analysis of object trajectories provides information on object velocity and path as a function of time and space.
Fluid flow field and turbulence: Particle Image Velocimetry (PIV) is used to measure instantaneous flow velocity fields in gases and liquids. PIV provides quantitative information on turbulence, flow separation, mixing and fluid-structure interaction. This information is needed for example in the design and analysis of processes and related devices, such as pumps, turbines, valves, nozzles, mixers. In addition, PIV data can be used to validate numerical flow simulations. Read more... Multiphase flows: Image-based measurements are particularly useful in multiphase flows with the ability to measure the velocity of all phases simultaneously. Thus, the interaction between the phases can be studied directly. Measurements also reveal the dispersed particle concentration, size and shape distributions as a function of time and location. Typical applications include bubbly flows, wood fiber suspensions, sprays, gas-particle suspensions and stratified gas-liquid flows.