Face recognition in pictures is affected by perspective transformation but not by the centre of projection
Authors: Liu, C.H. and Ward, J.
Journal: Perception
Volume: 35
Issue: 12
Pages: 1637-1650
ISSN: 0301-0066
DOI: 10.1068/p5545
Abstract:Recognition of unfamiliar faces is susceptible to image differences caused by angular sizes subtended from the face to the camera. Research on perception of cubes suggests that apparent distortions of a shape due to large camera angle are correctable by placing the observer at the centre of projection, especially when visibility of the picture surface is low (Yang and Kubovy, 1999 Perception & Psychophysics 61 456-467). To explore the implication of this finding for face perception, observers performed recognition and matching tasks where face images with reduced visibility of picture surface were shown with observers either at the centre of projection or at other viewpoints. The results show that, unlike perception of cubes, the effect of perspective transformation on face recognition is largely unaffected by the centre of projection. Furthermore, the use of perspective cues is not affected by textured surfaces. The limitation of perspective in restoring 3-D information of faces suggests a stronger role for image-based, rather than model-based, processes in recognition of unfamiliar faces. © 2006 a Pion publication.
Source: Scopus
Face recognition in pictures is affected by perspective transformation but not by the centre of projection.
Authors: Liu, C.H. and Ward, J.
Journal: Perception
Volume: 35
Issue: 12
Pages: 1637-1650
ISSN: 0301-0066
DOI: 10.1068/p5545
Abstract:Recognition of unfamiliar faces is susceptible to image differences caused by angular sizes subtended from the face to the camera. Research on perception of cubes suggests that apparent distortions of a shape due to large camera angle are correctable by placing the observer at the centre of projection, especially when visibility of the picture surface is low (Yang and Kubovy, 1999 Perception & Psychophysics 61 456-467). To explore the implication of this finding for face perception, observers performed recognition and matching tasks where face images with reduced visibility of picture surface were shown with observers either at the centre of projection or at other viewpoints. The results show that, unlike perception of cubes, the effect of perspective transformation on face recognition is largely unaffected by the centre of projection. Furthermore, the use of perspective cues is not affected by textured surfaces. The limitation of perspective in restoring 3-D information of faces suggests a stronger role for image-based, rather than model-based, processes in recognition of unfamiliar faces.
Source: PubMed
Preferred by: Changhong Liu
Face recognition in pictures is affected by perspective transformation but not by the centre of projection
Authors: Liu, C.H. and Ward, J.
Journal: PERCEPTION
Volume: 35
Issue: 12
Pages: 1637-1650
ISSN: 0301-0066
DOI: 10.1068/p5545
Source: Web of Science (Lite)
Face recognition in pictures is affected by perspective transformation but not by the centre of projection.
Authors: Liu, C.H. and Ward, J.
Journal: Perception
Volume: 35
Issue: 12
Pages: 1637-1650
eISSN: 1468-4233
ISSN: 0301-0066
DOI: 10.1068/p5545
Abstract:Recognition of unfamiliar faces is susceptible to image differences caused by angular sizes subtended from the face to the camera. Research on perception of cubes suggests that apparent distortions of a shape due to large camera angle are correctable by placing the observer at the centre of projection, especially when visibility of the picture surface is low (Yang and Kubovy, 1999 Perception & Psychophysics 61 456-467). To explore the implication of this finding for face perception, observers performed recognition and matching tasks where face images with reduced visibility of picture surface were shown with observers either at the centre of projection or at other viewpoints. The results show that, unlike perception of cubes, the effect of perspective transformation on face recognition is largely unaffected by the centre of projection. Furthermore, the use of perspective cues is not affected by textured surfaces. The limitation of perspective in restoring 3-D information of faces suggests a stronger role for image-based, rather than model-based, processes in recognition of unfamiliar faces.
Source: Europe PubMed Central