set_functions {segmetric} | R Documentation |
Set functions
Description
These functions compute subsets required to calculate segmentation metrics as described in Clinton et al. (2010) and Costa et al. (2017).
-
sm_ref()
returns the set ofpolygons of reference, represented by
-
sm_seg()
returns the set ofsegmentation polygons, represented by
-
sm_ytilde()
returns, a subset of
, where
-
sm_xtilde()
returns, a subset of
, where
-
sm_yprime()
returns, a subset of
, where
-
sm_xprime()
returns, a subset of
, where
-
sm_ya()
returns, a subset of
, where
-
sm_yb()
returns, a subset of
, where
-
sm_yc()
returns, a subset of
, where
-
sm_yd()
returns, a subset of
, where
-
sm_ystar()
returns, where
-
sm_ycd()
returns, where
-
sm_ye()
returns, a subset of
, where
-
sm_yf()
returns, a subset of
, where
-
sm_yg()
returns, a subset of
, where
Usage
sm_ytilde(m)
sm_xtilde(m)
sm_yprime(m)
sm_xprime(m)
sm_ya(m)
sm_yb(m)
sm_yc(m)
sm_yd(m)
sm_ystar(m)
sm_ycd(m)
sm_ye(m)
sm_yf(m)
sm_yg(m)
Arguments
m |
A |
Value
-
sm_ref()
: Return an object of classref_sf
(inherited fromsf
) containing identification (ref_id
) and geometry (geometry
) columns. -
sm_seg()
: Return an object of classseg_sf
(inherited fromsf
) containing identification (seg_id
) and geometry (geometry
) columns. -
sm_ytilde()
,sm_xtilde()
,sm_yprime()
,sm_xprime()
,sm_ya()
,sm_yb()
,sm_yc()
,sm_yd()
,sm_ystar()
,sm_ycd()
,sm_ye()
,sm_yf()
, andsm_yg()
: Return an object of classsubset_sf
(inherited fromsf
) containing identification (ref_id
andseg_id
), and geometry (geometry
) columns.
References
Clinton, N., Holt, A., Scarborough, J., Yan, L., & Gong, P. (2010). Accuracy Assessment Measures for Object-based Image Segmentation Goodness. Photogrammetric Engineering & Remote Sensing, 76(3), 289–299. doi: 10.14358/PERS.76.3.289.
Costa, H., Foody, G. M., & Boyd, D. S. (2018). Supervised methods of image segmentation accuracy assessment in land cover mapping. Remote Sensing of Environment, 205(December 2017), 338–351. doi: 10.1016/j.rse.2017.11.024.