Techniques for face recognition generally fall into global and local approaches, with the principal component analysis (PCA) being the most prominent global approach. We use the PCA algorithm to study the comparison and combination of infrared and typical visible-light images for face recognition. We examine the effects of lighting change, facial expression change and passage of time between the gallery image and probe image. Experimental results indicate that when there is substantial passage of time (greater than one week) between the gallery and probe images, recognition from typical visible-light images may outperform that from infrared images. Experimental results also indicate that the combination of the two generally outperforms either one alone. This is the only study that we know of to focus on the issue of how passage of time affects infrared face recognition.


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    Title :

    PCA-based face recognition in infrared imagery: baseline and comparative studies


    Contributors:
    Chen, X. (author) / Flynn, P.J. (author) / Bowyer, K.W. (author)


    Publication date :

    2003-01-01


    Size :

    468040 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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