Getting to Know Everything About Lidar And 4D Lidar Technology

The expansion of 3D, now 4D imaging, has led to growth in LiDAR technology at a faster pace. LiDAR is a light imaging detection and ranging technology that was invented by the US military and NASA in the mid-70s for measuring distance in space. And after that, the LiDAR became essential for creating accurate maps on earth. With the advancement in technology, 4d lidar has been launched in the market. This article will let one know the best characteristics of LiDAR and 4D LiDAR technology.

LiDAR Technology

When talking about the working of LiDAR technology, it sends out laser light pulses, and then the time taken by the light to hit the object and bounce back to the sensor is measured. This particular technology is used in several industries like forestry, surveying, land development, automobile, etc.

Advantages of LiDAR

Here mentioned are some advantages of using LiDAR technology:

·         Accuracy

One of the greatest benefits of LiDAR is its incredibly accurate and consistent results. Even small objects can be detected, and 3D models can be created by the short wavelength.

·         Speed

The sensors send and bounce the laser pulses back in nanoseconds, making scanning large areas in a short period.

·         Automated Functionality

LiDAR technology can easily map inaccessible places like high mountains, dense forests, and hard-to-reach regions.

4D LiDAR Technology

4 lidar sensors are efficient enough to detect the 3D position and instant velocity for each point at a distance up to at least 5000 meters. This further brings an added dimension to sensing and preception for offering safe autonomous driving.

Features of 4D LiDAR

Here mentioned are two vital features of 4D LiDAR technology:

·         Ultra Resolution

The 4D LiDAR technology provides the feature of a real-time camera-level of the world with up to a maximum of 1,000 lines per frame, also with no motion blur for the static scene, and providing up to a maximum of 20 times the resolution of legacy time of the flight LiDAR sensors. it is the image segmentation that enables detection of the markings of roadways, drivable areas, and road barriers, and also detecting road hazards at up to twice the distance of legacy time of flight LiDAR sensors.

·         4D Localization

Another feature that the 4D LiDAR offers is pre-point velocity data. It enables real-time ego vehicle motion estimation with six degrees of freedom, online sensor extrinsic calibration, and motion compensation to aid sensor fusion. Because of such vehicle estimation features, accurate vehicle positioning and navigation are enabled, and that too without the need for additional sensors, like GPS.


The speed, cost, and sheer volume of accurate data make the LIDAR technology the right option. And when it comes to 4d lidar technology, by using the same, one can access both its features- ultra resolution and 4D localization. But before choosing such technology for the business, it is best to conduct thorough research on the LiDAR service providers.