Laser scanner for breaking work

The device is a 3-dimensional scanner, with a special function to serve criminal investigations, in order to record where the case occurred. To get a clear picture of interesting objects, just slowly sweep the scanner into the required object, similar to using a sprayer to paint something.

Now the detective will not have to take countless photos at the crime place. A special tool capable of reproducing a 3-dimensional painting is very complete.

When it came to the place of the case, any detective tried to know as much of the scene as possible. To serve that, people take lots of photos at different angles. But those photos still can't give a full picture, plus it's not convenient to study them. Currently, criminal investigators are about to be offered a new gift: a handheld laser scanner that helps detectives take a crime stamp at the scene. This device will solve all the limitations of taking photos.

The device was researched and manufactured by Industrial Research and Right Hemisphere. The device is a 3-dimensional scanner, with a special function to serve criminal investigations, in order to record where the case occurred.

To get a clear picture of interesting objects, just slowly sweep the scanner into the required object, similar to using a sprayer to paint something. If you only need a general concept of the scene, you can quickly pan the device - then get the raw image, not see the details.

To receive such images, the scanner uses a digital camera, combined with a laser transmitter, so that the distance can be determined. Next, image signals and distance data are transferred to the computer for processing. The operator selects the level of processing to get a more detailed or inferior image. During the laser scanning process, the surface of the objects is ' remembered ' the entire ' terrain '.

The end result is a 3-dimensional ' statue ' set up by the computer, with natural colors. Operators can use ' mouse ' to rotate ' statues ' and look from different sides. Obviously with conventional video tapes, people cannot do that.

During the demonstration, Industrial Research representatives gave the scanner a practical operation. They took a tall model of ordinary people to simulate corpses, then used a laser scanner to record. Recording takes about 2 minutes. As a result, 2,400 digital photos have been received!

High-precision images are due to the achievements of Right Hemisphere. It was a big breakthrough. Previously there were other three-dimensional scanners, but they were only created or were small images, or motionless, and needed to be arranged in succession in order, at different points of the study object or At the same time put some such scanners.

Industrial Research's new device was invented in 2004, but only recently has it been possible to create a prototype device.

Comparing the scanner with the paint sprayer is not accidental. Robert Walkenburg, the project leader, said that controlling the scanner is similar to painting experience. "We want to make the device feel like it is painted," he said.

In addition to applications in the field of investigation of murder cases, scanners have been tested in creative activities at several workshops and the Museum of New Zealand painting. People also want to improve the device for the defense industry, aviation research - space and oceanography. 'In general, many applications can be found,' said Cris Bowman, the project's leading sponsor - but maybe we can't serve them all. '

The closest goal for designers is to organize commercial production of such scanners. However, to record the necessary images, the device needs to be connected to the computer, while the operator still has to carry it now in a large backpack behind his back. However Mr. Walkenburg believes that in the near future, the scanner will become unnecessary.

Hoang Thuong