3D Laser Scanning: One Of The Smart 3D Object Detection

Our 3D Laser Scanner helps us to get a 360° site imaging for us to find the 3D Measurements in the Trimble 360 viewer. This scanner captures images in forms of point clouds, enabling us to carry on the BIM modelling service. Below image shown is an HBD unit built with this service. The colorize is point clouds which guided us to shape out the site 3D model.

What is 3D Laser Scanning?

3D laser scanning services are quickly becoming standard in the design process to inspection and distribution of products. 3D laser scanning is a technology that employs lasers to measure an objects’ geometry to craft a digital 3D model. This technology is used throughout a number of industries and settings, as 3D laser scanning can capture three-dimensional data of objects, regardless of their surface features or size.

As the scanning is done with lasers, the objects do not need to be physically touched to take precise records of the existing dimensions of the object. From the scans, you’ll be able to generate a model using 3D imaging software which could help you as a base for the 3D project you are about to develop, but it can also be useful to reconstruct, analyse or simulate ideas.

How Does It Work: The 3D Laser Scanning Process?

3D laser scanning has gone through a revolution over the years that has provided enhanced precision, faster scanning and better results. Controlled steering of laser beams, in addition to distance measurements, makes the process possible. An internal rotary encoder in the machine controls the motion of scanning by adjusting several scanning mirrors to guide the laser beams. The process happens in several steps:

1. Scanning

The 3D laser scanning process is to pick out an object or facility that you'd like scanned. Once you select your object, you'll need to scan it. For smaller objects, you'll place them on the bed of a digitizer to begin the scanning process. For larger objects, such as buildings, you'll need to use other types of portable 3D laser scanners that can be brought out to the site.

Laser 3D scanning is certainly the most common and used 3D scanning technique. Digitally capturing the shape of the object using laser light to get a digital representation of the real object. These 3D scanners are able to measure really fine details and capture free-form shapes to generate highly accurate point clouds.

2. The Data

The resulting data from this process is the point cloud. Millions of points appear on a computer monitor during the laser’s movement, which captures the entire surface shape of any scanned object. Point cloud data files are huge. After their generation, they are registered and merged into a 3D representation of the object. Then, they’re post-processed with various software packages depending on the specific application.

3. Data Uses

Once the data has been collected and the image has been fully rendered in whatever scanning software you're using, you'll be able to select the kind of model you'd like to create through your software's 3D imaging capabilities. Sometimes you may only want a digital model, but you can also print out the model if you'd like to see a more tangible visual representation of the product.

If you're using the data you gained for inspection purposes, you can compare the designer's CAD nominal data to the object you scanned. From that comparison, you can receive a deviation report that utilizes a colour map. This report will show the difference between any CAD data and scan data.

Additionally, the data can be used for reverse engineering with a CAD model. The laser scan of an object will deliver plenty of information that you can then use to reverse engineer an object. In the software, the point cloud data from an object can be plugged in to build a 3D CAD model of the object's geometry. After the CAD model has been generated, it's easy to quickly reproduce an exact copy of a scanned object. Reverse engineering also allows companies to correct any imperfections in previous models and can find the flaws and then keep what works while adjusting the parts that have issues in the CAD model.

4. Photogrammetry

Photogrammetry is a science of making a measurement from photographs. This method can be used to record complex 2D and 3D motion fields. Indeed, this process collets the data regarding the shape, the volume, and the depth of the subject that you are trying to scan. This is the method used to turn several pictures into an accurate 3D design.

Benefits of Using 3D Laser Scanning:

1. Quality Control

When it comes to ensuring that products are being properly produced, 3D laser scanning has proven its value by being able to provide users with a quick update on a product's construction. For example, a company can take the data gained from a scan to catch any errors that have been made and correct them before a product is unveiled to the public.

2. Rapid Prototyping

3D laser scanning is the ability to reduce how many prototype cycles are needed. With 3D scan data, reduce the prototypes created and have the ability to get the measurements right before going to production. Before it's produced, the object will be constructed with the correct physical measurements, giving it the right scale and proper functionality.

3. Optimizes Engineering and Manufacturing

The data gathered by a 3D scan can be applied to the engineering portions of the project. For example, the 3D scan data will help you perform CAE, FEA and CFD engineering analysis on your created or modified products.

4. Accurate Documentation

In a variety of industries, 3D laser scanning provides companies with the ability to precisely document products that they offer. With a 3D laser scan, companies can quickly have precise measurements for all of the products that they offer.

5. Meet Deadlines

3D scanning services can help companies keep tabs on the progress and regular laser scanning will give a detailed breakdown of how much has been accomplished on a worksite, which will then ensure that deadlines are met. The same principle applies to the manufacturing of objects, as laser scanning can keep tabs on the progress of whatever is being produced.

To know more about 3D laser scanner, you may refer to: https://www.linkedin.com/pulse/3d-bim-modeling-service-iport-3d-interior-design-and-build-singapore/