To solve the problem one needs to transform 2D images of 3D structures from different angles/perspectives into a solid model. This is known as Structure from Motion analysis.
pix4D is an overall good tool providing exceptional ease of use for inexperienced to more experienced users. A youtube video introduces the software in a good way. It is a bit in the high end with re to price.
Agisoft PhotoScan is available for Windows, OSX and Linux. The profesdional edition looks impressive, but I have not tried it.
Dronemapper is an online service where you can upload imagery and have it processed.
3Dsurvey in addition to imagery analysis also offers what looks like good point cloud editing tools.
VisualSFM is a software package which in combination with CSVS might be a way to go. A youtube movie on the www.flightriot.com webpage gives a practical example of potential endpoint products. Visual SFM seems to be a project which lacks momentum. As far as I can see there has not been any development on the software for a couple of years.