The data processing described below was done by Esri using ArcGIS Pro 2.4. See Glossary if you get lost in acronyms.
Use the LAS Dataset in the Classify Las Building Tool in ArcGIS Pro 2.4.
Colorizing the Lidar points means that each point in the point cloud is given a color based on the imagery color value at that exact location.
CT ECO - Connecticut Environmental Conditions Online website where you are now.
FIPS - (Federal Information Processing Series). Numeric codes that represent US States and Counties.
LAS - the most common format for exchanging GIS point clouds . LAS is short for Lidar Data Exchange File.
LASZ - or LAZ is a compressed (think zipped) LAS file.
Lidar - is a detection system that uses light for a laser to measure distance and therefore elevation when used on an aerial platform.
NAD - (North American Datum). A geodetic datum is an abstract coordinate system with a reference surface that serves to provide known locations.
NAIP - (National Agriculture Imagery Program). A United State Department of Agriculture (USDA) program to acquire aerial imagery during the growing season.
NRCS - (Natural Resource Conservation Service). An Agency of the United State Department. of Agriculture (USDA) that provides farmers and ranchers financial and technical assistance.
Tif - a format used for imagery
USDA - United States Department of Agriculture