Photometric stereo with quasi-point light source
Photometric stereo with quasi-point light source
复制标题
准点光源光度立体
DOI:
10.1016/j.optlaseng.2018.08.014
复制
发表时间:
2018-12
影响因子:
4.6
通讯作者:
Zhan Song
中科院分区:
文献类型:
--
作者:
Zhao Song;Ying Nie;Zhan Song
This paper presents a complete computational framework for the photometric stereo system composed of some LED lamps and a single web-camera. To describe the lighting condition accurately, the angular and distance attenuation factors, as well as the LED radiance property, are considered in the modeling of the light source. The calibration of the system's parameters is a critical step for our setup, and a two-step calibration procedure is proposed in this work. A multiple-sphere-based approach is first used to estimate the light source positions. Then, a reference-plane-based approach is applied to estimate the principal optical axis of each light source and its principal energy. For each surface point on the target, the direction and intensity of its incidental light ray can be precisely determined by the calibration parameters and the quasi-point light model. Based on the initial 3D reconstruction result, an iterative procedure is applied to optimize the model's parameters for each surface point with respect to its initial estimated depth. In the experiments, both regular and free-form surfaces including a real human face are used. The results show that accurate 3D reconstruction results can be obtained by the proposed approach based on the low-cost setup.
登录
查看更多内容
DOI:
10.15221/12.091
发表时间:
2012-10
期刊:
--
影响因子:
--
作者:
Jahanzeb Ahmad;Jiuai Sun;Lyndon N. Smith;Melvyn L. Smith;John Henderson;Anirban Majumdar
通讯作者:
Jahanzeb Ahmad;Jiuai Sun;Lyndon N. Smith;Melvyn L. Smith;John Henderson;Anirban Majumdar
DOI:
10.1109/iccv.2009.5459331
发表时间:
2009-09
期刊:
2009 IEEE 12th International Conference on Computer Vision
影响因子:
--
作者:
T. Higo;Y. Matsushita;Neel Joshi;K. Ikeuchi
通讯作者:
T. Higo;Y. Matsushita;Neel Joshi;K. Ikeuchi
影响因子:
2.2
作者:
Jiuai Sun;Melvyn L. Smith;Lyndon N. Smith;L. Coutts;R. Dabis;C. Harland;J. Bamber
通讯作者:
Jiuai Sun;Melvyn L. Smith;Lyndon N. Smith;L. Coutts;R. Dabis;C. Harland;J. Bamber
DOI:
10.5860/choice.44-4509
发表时间:
2006-09
期刊:
--
影响因子:
--
作者:
Don Koks
通讯作者:
Don Koks
DOI:
10.1109/34.3909
发表时间:
1988-07-01
影响因子:
23.6
作者:
FRANKOT, RT;CHELLAPPA, R
通讯作者:
CHELLAPPA, R