Autor según el artículo: Gironés X; Julià C; Puig D
Departamento: Enginyeria Informàtica i Matemàtiques
Autor/es de la URV: Julià Ferré, Maria Carmen / Puig Valls, Domènec Savi
Palabras clave: Third order Signal processing Second orders Real-time application Keypoints Four quadrant Electrical engineering Arc tangent functions
Resumen: Two novel full quadrant approximations for the arctangent function that are specially suitable for real-time applications are studied. The key point of the proposed approximations is that they can be easily extended to two and four quadrants. Results show that the third-order proposed function outperforms the existing ones in terms of both precision and performance. Specifically, it is about 15% more accurate and about 1.5 times faster than the best existing one. On the other hand, the second-order proposed function is the most suitable for realtime applications: it is 2.6 and three times faster than the best existing one in the two- and four-quadrant approximations, respectively. Furthermore, it has a precision of about 0.18°, which is adequate for most applications in the computer vision field.
Áreas temáticas: Signal processing Nutrição Musicology Music Matemática / probabilidade e estatística Interdisciplinar Engineering, electrical & electronic Engenharias iv Electrical and electronic engineering Ciencias humanas Ciência da computação Arts Applied mathematics
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: domenec.puig@urv.cat carme.julia@urv.cat
Identificador del autor: 0000-0002-0562-4205 0000-0003-3440-6175
Fecha de alta del registro: 2023-02-19
Versión del articulo depositado: info:eu-repo/semantics/submittedVersion
Enlace a la fuente original: https://ieeexplore.ieee.org/document/6375931
Referencia al articulo segun fuente origial: Ieee Signal Processing Magazine. 30 (1): 130-135
Referencia de l'ítem segons les normes APA: Gironés X; Julià C; Puig D (2013). Full quadrant approximations for the arctangent function. Ieee Signal Processing Magazine, 30(1), 130-135. DOI: 10.1109/MSP.2012.2219677
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI del artículo: 10.1109/MSP.2012.2219677
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2013
Tipo de publicación: Journal Publications
Repositori URV