US RE49,979 E1
Method for generating a 3D combined model that represents a scene
Göran Bergqvist, Lindome (SE)
Assigned to FARO Technologies Sweden AB, Mölndal (SE)
Appl. No. 17/542,619
Filed by FARO Technologies Sweden AB, Mölndal (SE)
PCT Filed Mar. 28, 2017, PCT No. PCT/SE2017/050297
§ 371(c)(1), (2) Date Oct. 5, 2018,
PCT Pub. No. WO2017/176191, PCT Pub. Date Oct. 12, 2017.
Application 17/542,619 is a reissue of application No. 16/091,642, filed on Mar. 28, 2017, granted, now 10,508,915, issued on Dec. 17, 2019.
Claims priority of application No. 1630076 (SE), filed on Apr. 6, 2016.
Int. Cl. H04N 13/282 (2018.01); G01C 15/00 (2006.01); G06T 17/05 (2011.01); G06T 17/10 (2006.01); G06V 10/22 (2022.01); G06V 20/64 (2022.01); H04N 13/00 (2018.01); H04N 13/275 (2018.01)
CPC G06V 10/225 (2022.01) [G01C 15/00 (2013.01); G01C 15/002 (2013.01); G06T 17/05 (2013.01); G06T 17/10 (2013.01); G06V 20/64 (2022.01); H04N 13/275 (2018.05); H04N 13/282 (2018.05); G06V 2201/121 (2022.01)] 11 Claims
OG exemplary drawing
 
1. Method for generating a 3D combined model that represents a scene (1), in which scene (1) base members (11) are attached to scene elements (2) and wherein each base member (11) is associated with a respective reference point (23), which method comprises the steps of:
acquiring the coordinates in an external geodetic frame of [ a coordinate system for each of ] said reference points (23);
detachably connecting first reference members (20) [ (60)] , comprising primary means (21) [ an emitter or reflector (61) adapted to provide at least one type of primary physical property value and a filament arrangement (62) adapted to provide a predetermined temperature value] , to said base members (11) in predetermined positional relationships;
acquiring at least one 3D primary model that represents the scene (1), which 3D primary model comprises a plurality of primary model elements, some of which represent points on the scene elements (2) and some of which represent points on said primary means (21) [ emitter or reflector (61)] , wherein each primary model element is assigned measured [ the provided ] primary physical property values in the form of coordinates in a local three-dimensional coordinate system of the corresponding point;
wherein the method comprises the steps of:
acquiring at least one secondary model that represents the scene (1), which secondary model comprises a plurality of secondary model elements, some of which represent points associated with scene elements (2) and some of which represent points associated with secondary means [ the filament arrangement ] ( 41;62), connected to said base members (11) in predetermined positional relationships, wherein each secondary model element is associated with at least one measured secondary physical property value [ the predetermined temperature value ] associated with the corresponding point; [ and ]
processing the acquired information [ coordinates and models ] to generate a 3D combined model that represents the scene (1), wherein at least some combined model elements are associated with known coordinates in the external geodetic frame [ coordinate system] , and wherein at least some combined model elements are associated with both first and second measured [ the provided primary ] physical property values [ and predetermined temperature values] .