Common reduced spaces of representation applied to multispectral texture analysis in cosmetology
| Autor: | Joris Corvo, Josselin Breugnot, B. Closs, Sylvie Borbes, Jesús Angulo |
|---|---|
| Přispěvatelé: | Centre de Morphologie Mathématique (CMM), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), SILAB, SPIE |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
business.industry
Covariance matrix Dimensionality reduction Multispectral image 0211 other engineering and technologies Hyperspectral imaging Pattern recognition 010103 numerical & computational mathematics 02 engineering and technology 01 natural sciences Multispectral pattern recognition Redundancy (information theory) Computer Science::Computer Vision and Pattern Recognition [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV] Principal component analysis Computer vision Artificial intelligence 0101 mathematics business ComputingMilieux_MISCELLANEOUS 021101 geological & geomatics engineering Curse of dimensionality |
| Zdroj: | Multimodal Biomedical Imaging XI Multimodal Biomedical Imaging XI, SPIE, Feb 2016, San Francisco, United States. ⟨10.1117/12.2212508⟩ |
| Popis: | Principal Component Analysis (PCA) is a technique of multivariate data analysis widely used in various fields like biology, ecology or economy to reduce data dimensionality while retaining most important information. It is becoming a standard practice in multispectral/hyperspectral imaging since those multivariate data generally suffer from a high redundancy level. Nevertheless, by definition, PCA is meant to be applied to a single multispectral/hyperspectral image at a time. When several images have to be treated, running a PCA on each image would generate specific reduced spaces, which is not suitable for comparison between results. Thus, we focus on two PCA based algorithms that could define common reduced spaces of representation. The first method arises from literature and is computed with the barycenter covariance matrix. On the contrary, we designed the second algorithm with the idea of correcting standard PCA using permutations and inversions of eigenvectors. These dimensionality reduction methods are used within the context of a cosmetological study of a foundation make-up. Available data are in-vivo multispectral images of skin acquired on different volunteers in time series. The main purpose of this study is to characterize the make-up degradation especially in terms of texture analysis. Results have to be validate by statistical prediction of time since applying the product. PCA algorithms produce eigenimages that separately enhance skin components (pores, radiance, vessels...). From these eigenimages, we extract morphological texture descriptors and intent a time prediction. Accuracy of common reduced spaces outperform classical PCA one. In this paper, we detail how PCA is extended to the multiple groups case and explain what are the advantages of common reduced spaces when it comes to study several multispectral images. |
| Databáze: | OpenAIRE |
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