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Cleaner point cloud with Pix4Dmapper 4.5

Pix4Dmapper 4.5 brings the improved quality of the dense point cloud and of 3D models.

Since the release of Pix4Dmapper 4.5 in March 2020, our users have had a chance to experience the fastest version of Pix4Dmapper yet. However, speed is not the only thing worth mentioning.

The new algorithms are optimized for oblique images, which typically capture the sky or other things in the background. The new version generates cleaner point clouds, which means less manual cleaning and better 3D textured meshes.

Taking oblique imagery to the next level

Before we get into the improvements, let’s cover two fundamental questions:

What is oblique imagery?

Generally speaking, oblique imagery is collected when the camera is not pointing directly at the ground. It contrasts with traditional nadir imagery, which is captured when the camera is pointing straight down at the ground.

What is oblique imagery used for?

Oblique aerial imagery can be used to generate a more complete three-dimensional (3D) model of an object or area of interest compared to nadir imagery.

Less is more

Less noise and fewer outliers will be generated in the final point cloud, which greatly impacts the 3D textured meshes automatic generation.

Fewer outliers in the point cloud due to sky

When images include sky, it isn’t uncommon to see points in the point cloud that are considered outliers or artifacts because they do not accurately represent the project area. Pix4Dmapper 4.5 handles this type of image content better.

Fewer outliers in the point cloud due to sky with Pix4Dmapper 4.5
Reduction of outliers due to sky.
Left, Pix4Dmapper 4.4.12 / Right, Pix4Dmapper 4.5.6

Fewer outliers caused by ground points

Even if you do not include the sky in images, you might still have artifacts along the edges of a structure due to other elements in the background or on the ground. Pix4Dmapper 4.5 also addresses better this type of noise.

Fewer outliers caused by ground points with Pix4Dmapper 4.5
Reduction of outliers due to objects in the background.
Left, Pix4Dmapper 4.4.12 / Right, Pix4Dmapper 4.5.6

Better noise handling

With Pix4Dmapper 4.5 new algorithms, points that do not accurately represent reality are better handled. The point cloud will be more precise because only points with the highest confidence are reconstructed.

Better noise handling with Pix4Dmapper 4.5
Reduction of noise due to homogeneous textures on a car.
Left, Pix4Dmapper 4.4.12 / Right, Pix4Dmapper 4.5.6

Speed improvement

With Pix4Dmapper 4.5, you can spend up to 20% less time calibrating the cameras and generating a point cloud while achieving the same accuracy and high-quality results. Read more about faster processing with Pix4Dmapper 4.5.

Accelerating point cloud cleaning


"My tests show that the latest version of Pix4Dmapper provides MUCH cleaner point clouds than before. I just did some small buildings and I didn't have to clean up the point cloud at all. This was especially noticeable as I had several shots looking up at the facade and there weren't any of the sky background artifacts in the point cloud. This is a big deal."
- Dr. Ken Varner, Senior Data Specialist, vaireco GmbH.

Upgrade now

Every user with a Pix4Dmapper subscription or a perpetual Pix4Dmapper license with a valid Support & Updates subscription can upgrade to the latest version of the software. Check your Pix4D account to learn more.

Pix4Dmapper 4.5
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