Head pose estimation using image abstraction and local directional quaternary patterns for multiclass classification

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This study treats the problem of coarse head pose estimation from a facial image as a multiclass classification problem. Head pose estimation continues to be a challenge for computer vision systems because extraneous characteristics and factors that lack pose information can change the pixel values in facial images. Thus, to ensure robustness against variations in identity, illumination conditions, and facial expressions, we propose an image abstraction method and a new representation method (local directional quaternary patterns, LDQP), which can remove unnecessary information and highlight important information during facial pose classification. We verified the efficacy of the proposed methods in experiments, which demonstrated its effectiveness and robustness against different types of variation in the input images.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2014-08
Language
English
Article Type
Article
Keywords

FACE RECOGNITION; MODELS

Citation

PATTERN RECOGNITION LETTERS, v.45, pp.145 - 153

ISSN
0167-8655
DOI
10.1016/j.patrec.2014.03.017
URI
http://hdl.handle.net/10203/189392
Appears in Collection
CS-Journal Papers(저널논문)
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