Preface to the special issue on 3DOR 2013

In this issue, we have two regular papers and five selected papers from 3D Object Retrieval 2013. The three regular papers are the following: the first paper is entitled ‘Computer vision-based object recognition for the visually impaired in an indoors environment: a survey’ by Rabia Jafri, Syed Abid Ali, Hamid R. Arabnia and Shameem Fatima. In this paper, an overview of the various technologies that have been developed in recent years to assist the visually impaired in recognizing generic objects in an indoors environment is presented. The second paper is entitled ‘An effective scheme for image texture classification based on binary local structure pattern’ by Nishant Shrivastava and Vipin Tyagi. In this paper, an effective completed modelling of the Local Binary Pattern is proposed. The preface to the Special Issue on 3DOR can be found below.