The LAS file format is a public file format for the exchange of three-dimensional point clouds, it is a binary file that retains information specific to Lidar data (unlike a generic ASCII). LiDAR (Light Detection and Ranging) is a type of remote sensing that results in a dense point cloud and comes in several different formats. For more information, see our help guide on how to work with LiDAR. The LAS file format is a public file format for the exchange of three-dimensional point cloud data between data users.
Although developed primarily for the exchange of LIDAR point cloud data exchange, this format supports the exchange of any three-dimensional x, y, z tuple. This binary file format is an alternative to proprietary systems or to a generic ASCII file sharing system used by many companies. The problem with proprietary systems is obvious, as data cannot be easily transferred from one system to another. There are two main problems with ASCII file sharing.
The first problem is performance, since reading and interpreting ASCII elevation data can be very slow and the file size can be extremely large even for small amounts of data. The second problem is that all the information specific to the LIDAR data is lost. The LAS file format is a binary file format that maintains information specific to the LIDAR nature of the data without being too complex. The file format commonly used to store LIDAR point cloud data is called.
Las, which is a format supported by the American Society for Photogrammetry and Remote Sensing (ASPRS). Recently, Martin Isenberg from LasTools has developed the format. laz. That's the difference.
laz is a highly compressed version of. las. Lidar point cloud (LPC) files in LAS format have significant data storage needs. The compressed LAZ format can significantly reduce the size of the LPC delivery, helping to reduce the number of physical units delivered and the post-delivery conversion.
Some projects may require the separate delivery of uncompressed LAS files.