Automatic Detection and Parameter Estimation of Ginkgo biloba in Urban Environment Based on RGB Images

Table 7

Studies on individual tree detection and parameter estimation.

Study	1 [30]	2 [31]	3 [29]
Sensor	2 laser scanners, two CCD cameras	ADS40 airborne digital sensor	Submeter optical sensor
Carrying platform	Van	Plane	WorldView-2 satellite
Detection method	Voxel-based marked neighborhood searching	Classification of refined superpixels by a naive Bayes classifier	Marked point processes based on a geometrical- optical model
Study area	Small	Large	Large
Target	Individual street trees	Individual urban tree crowns	Individual urban tree crowns
Species recognition	No	No	No
Crown size	Y	Y	Y
Height	Y	Y	N
DBH	Y	N	N