In this short article, we report new results on our work on the problem of using passive Vision and more precisely Stereo Vision to build up consistent 3D geometric descriptions of the environment of a mobile robot I-INTRODUCTION The robot that we have built consists of a four-wheeled platform with two driving wheels operated by electrical motors. A set of three CCD cameras provides black and w...

Abstract Let $$d\ge 2$$ d ? 2 . In this paper we give a simple proof of the endpoint Besov-Lorentz estimate $$\begin{aligned} \Vert I_\alpha F\Vert _{{\dot{B}}^{0,1}_{d/(d-\alpha ),1}(\mathbb {R}^d;\mathbb {R}^k)} \le C F _{L^1(\mathbb \end{aligned}$$ <...