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A comparison of feature extractors for panorama stitching in an autonomous car architecture.

Cortés-Gallardo, Edgar; Moreno-Garcia, Carlos Francisco; Zhu, Alfredo; Chípuli-Silva, Daniela; González-González, José A.; Morales-Ortiz, Domenico; Fernández, Sebastián; Urriza, Bernardo; Valverde-López, Juan; Marín, Arath; Pérez, Hugo; Izquierdo-Reyes, Javier; Bustamante-Bello, Rogelio

Authors

Edgar Cortés-Gallardo

Alfredo Zhu

Daniela Chípuli-Silva

José A. González-González

Domenico Morales-Ortiz

Sebastián Fernández

Bernardo Urriza

Juan Valverde-López

Arath Marín

Hugo Pérez

Javier Izquierdo-Reyes

Rogelio Bustamante-Bello



Abstract

Panorama stitching consists on frames being put together to create a 360o view. This technique is proposed for its implementation in autonomous vehicles instead of the use of an external 360o camera, mostly due to its reduced cost and improved aerodynamics. This strategy requires a fast and robust set of features to be extracted from the images obtained by the cameras located around the inside of the car, in order to effectively compute the panoramic view in real time and avoid hazards on the road. In this paper, we compare and discuss three feature extraction methods (i.e. SIFT, BRISK and SURF) for image feature extraction, in order to decide which one is more suitable for a panorama stitching application in an autonomous car architecture. Experimental validation shows that SURF exhibits an improved performance under a variety of image transformations, and thus appears to be the most suitable of these three methods, given its accuracy when comparing features between both images, while maintaining a low time consumption. Furthermore, a comparison of the results obtained with respect to similar work allows to increase the reliability of our methodology and the reach of our conclusions.

Start Date Nov 26, 2019
Publication Date Jul 15, 2020
Publisher Institute of Electrical and Electronics Engineers
Series ISSN 2573-3001
Institution Citation CORTÉS-GALLARDO, E., MORENO-GARCIA, C.F., ZHU, A., CHÍPULI-SILVA, D., GONZÁLEZ-GONZÁLEZ, J.A., MORALES-ORTIZ, D., FERNÁNDEZ, S., URRIZA, B., VALVERDE-LÓPEZ, J., MARÍN, A., PÉREZ, H., IZQUIERDO-REYES, J. and BUSTAMANTE-BELLO, R. 2019. A comparison of feature extractors for panorama stitching in an autonomous care architecture. In Proceedings of 2019 International conference on mechatronics, electronics and automotive engineering (ICMEAE 2019), 26-29 November 2019, Cuernavaca, Mexico. Piscataway: IEEE [online], page 50-55. Available from: https://doi.org/10.1109/ICMEAE.2019.00017
Keywords Panorama stitching; Image blending; Feature extraction; Autonomous vehicles; SIFT; BRISK; SURF

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