19 June 2017 Upright detection of in-plain rotated face images with complicated background for organizing photos
Author Affiliations +
Proceedings Volume 10443, Second International Workshop on Pattern Recognition; 104430L (2017) https://doi.org/10.1117/12.2280251
Event: Second International Workshop on Pattern Recognition, 2017, Singapore, Singapore
Digital cameras and smart-phones with orientation sensors allow auto-rotation of portrait images. Auto-rotation of portrait is done by using the image file's metadata, exchangeable image file format (EXIF). The output of these sensors is used to set the EXIF orientation flag to reflect the positioning of the camera with respect to the ground. Unfortunately, software program support for this feature is not widespread or consistently applied. Our research goal is to create the EXIF orientation flag by detecting the upright direction of face images having no orientation flag and is to apply the software of organizing photos. In this paper, we propose a novel upright detection scheme for face images that relies on generation of rotated images in four direction and part-based face detection with Haar-like features. Inputted images are frontal faces and these images are in-plain rotated in four possible direction. The process of upright detection is that among four possible rotated images, if only one rotated image is accepted in face detection and other three rotated images are rejected, the upright direction is obtained from the accepted direction. Rotation angle of EXIF orientation is, 0 degree, 90 degree clockwise, 90 degree counter-clockwise, or 180 degree. Experimental results on 450 face image samples show that proposed method is very effective in detecting upright of face images with background variations.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yoshihiro Shima, Yoshihiro Shima, } "Upright detection of in-plain rotated face images with complicated background for organizing photos", Proc. SPIE 10443, Second International Workshop on Pattern Recognition, 104430L (19 June 2017); doi: 10.1117/12.2280251; https://doi.org/10.1117/12.2280251


Demosaicking algorithm for the Kodak-RGBW color filter array
Proceedings of SPIE (February 07 2015)
GUCLF: a new light field face database
Proceedings of SPIE (November 17 2013)
Accurate estimation of camera shot noise in the real-time
Proceedings of SPIE (October 05 2017)
Cell phone camera ballistics: attacks and countermeasures
Proceedings of SPIE (January 27 2010)

Back to Top