Omnidirectional Structured Light in a Flexible Configuration

Sensors

Carmen Paniagua²  Luis Puig¹ 

[1] GRASP Laboratory, University of Pennsylvania, 3330 Walnut Street, L402, Philadelphia, PA 19104, USA; E-Mail:;Departamento de Informática e Ingeniería de Sistemas, Instituto de Investigación en Ingeniería de Aragón I3A, University of Zaragoza, E-50018, Spain; E-Mail:

关键词: structured light;    omnidirectional camera;    wearable system;   

DOI  :  10.3390/s131013903

来源: mdpi

【 摘 要 】

Structured light is a perception method that allows us to obtain 3D information from images of the scene by projecting synthetic features with a light emitter. Traditionally, this method considers a rigid configuration, where the position and orientation of the light emitter with respect to the camera are known and calibrated beforehand. In this paper we propose a new omnidirectional structured light system in flexible configuration, which overcomes the rigidness of the traditional structured light systems. We propose the use of an omnidirectional camera combined with a conic pattern light, i.e., the 3D information of the conic in the space. This reconstruction considers the recovery of the depth and orientation of the scene surface where the conic pattern is projected. One application of our proposed structured light system in flexible configuration consists of a wearable omnicamera with a low-cost laser in hand for visual impaired personal assistance.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.