Structured Light In 3D Scanning Technology

Structured Light In 3D Scanning Technology

A structured light 3D scanner is a device which is used to measure three-dimensional shapes often image by using light patterns which are projected along with a camera. The principle behind projecting a narrow stream of light onto a shape which is three dimensional is to produce a line of illumination which appears distorted from the other perspectives than the one used by the projector.

3D structured light is being used by the construction industry as well as the video gaming industry in order to record the spatial data of objects to reconstruct the same into models of polygon mesh and other types to be used for producing a variety of products. The 3-D scanning equipment is perhaps the most important for the industry it is being used because users will also have to determine the size of the subject matter before they decide to use a laser scanner which is appropriate for their requirements.

Structured light 3-D scanning technology uses a camera to capture the spatial data of the object. However rather than project a laser it projects light patterns which are often in the form of stripes. The projection of narrow bands of light on a three-dimensional object produces a line of elimination which appears distorted to the naked eye but is useful for gathering data for precise reconstruction of the object geometrically. There are numerous applications for structured light in 3-D scanning technology because it can be used to take measurements of body shape, road surface quality, measurements of wrinkles in cloth, forensic inspections and even measurement of the skin surface for cosmetics.

Structured light scanners can emit different patterns of structured light but their mission of different stripes is usually in a preferred method which can be categorized as laser interference and projection. The use of a wide planar laser beam fronts as a method of interference to create different lines which are of equal distance apart and is typically used to scan easily the fine patterns at a depth of view which is unlimited. This is particularly helpful when measuring the surface of the skin for cosmetic reasons. On the contrary, the projection method utilizes no coherent lighting pattern and works like a video projector to generate patterns from a display within the projector. Both these methods of structured light 3-D scanner are invaluable for their ability to scan fine surfaces appropriately and even at a great depth and are chosen by many but they do have their disadvantages because they are ineffective when scanning reflective, semi-transparent and transparent surfaces. The disadvantage can, however, be removed by applying a coating of lacquer which is thin to the surface as a countermeasure.

Structured light 3D scanners are being used for various projects by many users who have a requirement of scanning objects which have a fine surface at a great depth. This scanning technology is proving extremely beneficial for the skincare industry, the industry of power tools and various other industries during the development and the classification of products which are manufactured.

The latest products which are available on the market are optimizing the core sensing technology by offering users a comprehensive 3-D processing pipeline. The solutions which are offered by manufacturers are addressing depth sensing and processing requirements of the users by taking into account auto calibration, segmentation, high-quality registration and even data compression as well as streaming. These devices have presently become indispensable for many industries and the trend is expected to continue further until a better method is discovered sometime in the future.