How do amplitude spectra influence rapid animal detection?
Vision Res
; 49(24): 3001-12, 2009 Dec.
Article
em En
| MEDLINE
| ID: mdl-19818804
ABSTRACT
Amplitude spectra might provide information for natural scene classification. Amplitude does play a role in animal detection because accuracy suffers when amplitude is normalized. However, this effect could be due to an interaction between phase and amplitude, rather than to a loss of amplitude-only information. We used an amplitude-swapping paradigm to establish that animal detection is partly based on an interaction between phase and amplitude. A difference in false alarms for two subsets of our distractor stimuli suggests that the classification of scene environment (man-made versus natural) may also be based on an interaction between phase and amplitude. Examples of interaction between amplitude and phase are discussed.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Reconhecimento Visual de Modelos
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
/
Animals
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Vision Res
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Reino Unido