TY - GEN
T1 - An effective phase-unwrapping method for time-of-flight camera based on 2D-Gaussian model
AU - Kang, Mun Cheon
AU - Kang, Seok Jae
AU - Chae, Sung Ho
AU - Morales, Aldo
AU - Ko, Sung Jea
PY - 2014
Y1 - 2014
N2 - The time-of-flight camera produces a depth map using the phase delay between the emitted infrared (IR) light signal and the received one. However, for any objects farther than a certain range, called the non-ambiguity range (NAR), the measured depth value is much smaller than its actual value. To overcome the problem, this paper presents a novel method to effectively correct the depth value of the region with the depth ambiguity (RDA). In the proposed method, the amplitude map of the reflected IR signal on the scene points is modeled as a 2D-Gaussian function. Based on this model, we extract the RDA from the original depth map and then add the NAR to the depth value of the RDA for depth correction. Experimental results show that the proposed method effectively reduces the RDA compared with conventional ones.
AB - The time-of-flight camera produces a depth map using the phase delay between the emitted infrared (IR) light signal and the received one. However, for any objects farther than a certain range, called the non-ambiguity range (NAR), the measured depth value is much smaller than its actual value. To overcome the problem, this paper presents a novel method to effectively correct the depth value of the region with the depth ambiguity (RDA). In the proposed method, the amplitude map of the reflected IR signal on the scene points is modeled as a 2D-Gaussian function. Based on this model, we extract the RDA from the original depth map and then add the NAR to the depth value of the RDA for depth correction. Experimental results show that the proposed method effectively reduces the RDA compared with conventional ones.
UR - http://www.scopus.com/inward/record.url?scp=84898688074&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84898688074&partnerID=8YFLogxK
U2 - 10.1109/ICCE.2014.6775953
DO - 10.1109/ICCE.2014.6775953
M3 - Conference contribution
AN - SCOPUS:84898688074
SN - 9781479912919
T3 - Digest of Technical Papers - IEEE International Conference on Consumer Electronics
SP - 161
EP - 162
BT - 2014 IEEE International Conference on Consumer Electronics, ICCE 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Consumer Electronics, ICCE 2014
Y2 - 10 January 2014 through 13 January 2014
ER -