  3D extended field of views (FOVs) of the internal bladder wall facilitate
lesion diagnosis, patient follow-up and treatment traceability. In this paper,
we propose a 3D image mosaicing algorithm guided by 2D cystoscopic video-image
registration for obtaining textured FOV mosaics. In this feasibility study, the
registration makes use of data from a 3D cystoscope prototype providing, in
addition to each small FOV image, some 3D points located on the surface. This
proof of concept shows that textured surfaces can be constructed with minimally
modified cystoscopes. The potential of the method is demonstrated on numerical
and real phantoms reproducing various surface shapes. Pig and human bladder
textures are superimposed on phantoms with known shape and dimensions. These
data allow for quantitative assessment of the 3D mosaicing algorithm based on
the registration of images simulating bladder textures.
