TY - GEN
T1 - Directional descriptors using zernike moment phases for object orientation estimation in underwater sonar images
AU - Kumar, Naveen
AU - Lammert, Adam C.
AU - Englot, Brendan
AU - Hover, Franz S.
AU - Narayanan, Shrikanth S.
PY - 2011
Y1 - 2011
N2 - Conventional methods for rotation angle estimation are not very robust to variations in object shape or intensity. However in real object recognition scenarios like in underwater sonar images, the object seldom retains the same appearance in different test cases. Object representation using Zernike moments allows to capture these variabilities in a way that makes it robust in the context of rotation angle estimation. This paper presents a novel way to exploit the phase information of Zernike moments to infer the object orientation. This is achieved via a compact directional representation that describes the variation in object shape along different directions. Results yielded on the DIDSON sonar imageset collected by CSAIL at MIT show that the method can robustly infer the relative orientation between objects.
AB - Conventional methods for rotation angle estimation are not very robust to variations in object shape or intensity. However in real object recognition scenarios like in underwater sonar images, the object seldom retains the same appearance in different test cases. Object representation using Zernike moments allows to capture these variabilities in a way that makes it robust in the context of rotation angle estimation. This paper presents a novel way to exploit the phase information of Zernike moments to infer the object orientation. This is achieved via a compact directional representation that describes the variation in object shape along different directions. Results yielded on the DIDSON sonar imageset collected by CSAIL at MIT show that the method can robustly infer the relative orientation between objects.
KW - Directional Descriptors
KW - Rotation Angle
KW - Underwater Sonar Image
KW - Zernike Moment Phase
UR - http://www.scopus.com/inward/record.url?scp=80051641526&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80051641526&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2011.5946581
DO - 10.1109/ICASSP.2011.5946581
M3 - Conference contribution
AN - SCOPUS:80051641526
SN - 9781457705397
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 1025
EP - 1028
BT - 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
T2 - 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Y2 - 22 May 2011 through 27 May 2011
ER -