Understanding kinematics in biomechanics is fundamental to analyzing human motion. Part of kinematics is being able to use derivatives and integrals to obtain position, velocity, and acceleration. In this tutorial, we show you how to use the pipeline commands for derivatives and integrals.
As biomechanics is used to study human motion, kinematics are a fundamental building block. In this tutorial, we talk about velocity and acceleration and how to obtain them from position using derivatives. You can also watch our tutorial on how to perform these operations directly from the pipeline.
Signal manipulation to obtain the results you are working for is a key part of using Visual3D. In this tutorial we focus on math between signals. We show you how to set up these operations directly in your pipeline using dedicated commands.
Within Visual3D there are many ways to perform mathematical operations. In this tutorial, we give you an introduction to the options you have to perform signal math. Whether you are using constants, adding or multiplying signals, using derivatives, or performing more complex calculations through evaluate expressions, the tools are most likely available to you in Visual3D.
Performing mathematical operations on your signals in Visual3D is a standard part of data processing. You will – most likely – have a need to add, subtract, multiply by, or divide by a constant. In this tutorial, we show you how to using the dedicated pipeline commands to perform these operations as part of your automated data processing.
Filters on your data as applied in a number of different ways. One common method is to use a specific section of data for each frame, this is called a filter window. In this tutorial, we explain what a filter window is and advantages and disadvantages of the size you set it to.
One of the most common ways to process your data in biomechanics is to use a Butterworth filter. Before you apply one using the pipeline command, you should know what the filter is actually doing to your data. In this tutorial, we talk about the theory of how Butterworth designed this filter and the effect it has on the frequency response in the passband.
Within Visual3D, since you can automate your data processing, there are many options of filters. In this tutorial, we show you some of the more advanced options by highlighting the DFT filter, Teager Kaiser Energy, FFT, Bin Integrate, and GVCSPL pipeline commands.
Although Butterworth filters are very common within biomechanics, there are other ways to smooth your data in Visual3D. In this tutorial, we focus on three types of filters that use windows. Covering average, RMS, and median filters, we show you how to apply these commands from the pipeline.
Butterworth filters are one of the most commonly used and robust filters to processing biomechanics data. In this tutorial, we explore the methods available in Visual3D to use Butterworth filters, from single-pass to high-order with full customizability for both high-pass and low-pass versions.
