Handling zero corresponding tracks for reconstruction.
Handling zero corresponding tracks for reconstruction.

Array indices does not become faulty when the array is empty when using an empty numpy array instead of creating a numpy arrary from empty list.

BrookRoberts/OpenSfM,NicWayand/OpenSfM,oscarlorentzon/OpenSfM,sunbingfengPI/OpenSFM_Test,onecue/OpenSfM,sunbingfengPI/OpenSFM_Test,mapillary/OpenSfM,edgarriba/OpenSfM,sunbingfengPI/OpenSFM_Test,edgarriba/OpenSfM,oscarlorentzon/OpenSfM,oscarlorentzon/OpenSfM,sunbingfengPI/OpenSFM_Test,edgarriba/OpenSfM,onecue/OpenSfM,sunbingfengPI/OpenSFM_Test,NicWayand/OpenSfM,NicWayand/OpenSfM,oscarlorentzon/OpenSfM,BrookRoberts/OpenSfM,edgarriba/OpenSfM,mapillary/OpenSfM,NicWayand/OpenSfM,onecue/OpenSfM,mapillary/OpenSfM,BrookRoberts/OpenSfM,BrookRoberts/OpenSfM,onecue/OpenSfM,mapillary/OpenSfM,NicWayand/OpenSfM,oscarlorentzon/OpenSfM,mapillary/OpenSfM,BrookRoberts/OpenSfM,onecue/OpenSfM,edgarriba/OpenSfM