Capturing High Quality Point Clouds¶
Zivid 3D cameras have four ways to change the exposure:
In this tutorial, we will first explore what the different exposure variables are, how they work, and which considerations should be taken when using them. Then we will apply these principles to establish a simple 3D imaging technique that aims at acquiring high-quality point clouds.
We recommend starting by visiting Camera Settings to learn about the exposure variables and available filters. The articles which we recommend as a prerequisite for this tutorial are:
3D imaging technique¶
In this part of the tutorial, we will present a 3D imaging technique. This technique utilizes the histogram to evaluate our point cloud in a predictable and step-by-step manner, in order to acquire good 3D point clouds. The procedure can be divided into three steps:
If you are using Zivid Two camera, check Standard Acquisition Settings to see Settings presets that provide good 3D point clouds for different scenes.
In some cases we might want higher quality data on certain pixels, this is covered in:
We will also cover some more advanced topics such as specifically dealing with highlights and lowlights, and taking environmental factors into consideration, such as ambient light and choice of background.
To learn more about acquiring high-quality 3D point clouds with Zivid cameras, continue to Working Distance and Camera Positioning.