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Point Cloud classes

Point Cloud classes

Updated over 6 months ago

In Neara, we refer to the following Point Cloud classes.

Available classes

Class	Name used in formulas	Content	Examples
Ground	`ground`	General surface of the earth
Vegetation	`veg`	Vegetation: Plants, trees, hedges, tall grass Includes leaves, trunks, branches
Building	`building`	Buildings: An enclosed structure that has walls and a roof Includes roof, stairwells, balconies, verandahs, decks attached to the structure Includes skyscrapers
Fence	`fence`	Fences, on the ground: Includes all solid surfaces to the ground Includes sound barriers next to roads and railways Includes stairwell railings only if the stairs are in the ground (see example) Does not include rooftop or balcony railings, which are classified as `building`
Vehicle	`vehicle`	Ground-based, mechanical moving objects: Includes cars, trucks, trailers, trains, carriages, motorcycles Do not include mobile vehicles like mobile cranes, construction equipment Does not include boats or aircraft
Small object (ground)	`smo_gnd`	Small object on the ground: Various objects under 2m in height Includes bollards, people, animals, boxes, bins, small tanks and containers, chairs, benches Does not include `fence`
Small object (rooftop)	`smo_rt`	Small object on a rooftop: Identifiable objects on the roof of a building, such as air conditioning unit, chimney, ventilation shafts Does not include dormer (part of `building`) or antenna (part of Antenna (rooftop))
Antenna (rooftop)	`antenna_rt`	Antenna on a rooftop: Domestic / civilian antennas mounted on the roof of a building Does not include larger roof-mounted clothes lines, fences, cables, very tall antenna structures
Noise	`noise`	LiDAR points that do not represent real-world objects. Created by incorrect sensor readings, disturbances in the atmosphere, jetstreams, clouds, etc.
Pole (non-power)	`pole_np`	Pole-shaped objects that are not used to support wires Includes: street lights, street signs, stop lights, flag poles, miscellaneous tall “posts” over ~4m in height
Special	`special`	Unclassified points. Typically assigned to class number `0`.
Stay/Guy	`stays`	A cable that connects a utility pole to the ground to counteract forces on the pole Does not include cables that connect poles to other poles (“aerial stays”, which are classified as `conductor`)
Tower	`tower`	Includes: Lattice transmission towers, Lattice H-Frame transmission structures, structures more complex than a straight pole Includes the insulators Does not include jumper cables that connect the circuits (conductor)
Structure	`structure`	A utility pole Includes cross-arms, transformers, other attachments, the insulators, solid cross-beam members and solid ground support beams Does not include well-defined jumper cables
Conductor	`conductor`	Electrified wide that is stringing to a pole, or between two poles. Does not include insulators (included in `structure`) Does not include wires inside substations Includes jumper cables when clearly visible Includes aerial stays between two poles Distinct from Stay/Guy which is a non-electrified wire that connects a pole to the ground

Not currently used

Class	Name used in formulas	Content
Ground2	`ground2`	(not currently used)
Water	`water`	Water surface points (not currently used)
Road	`road`	Ground surface designed to be used by vehicles (not currently used)
Infrastructure	`infra`	Other infrastructure (not currently used)
Power (power)	`pole_p`	Pole (power) (not currently used)
Overpass	overpass	(not currently used)

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