Embedded Polarizing Filters to Separate Diffuse and Specular Reflection

Polarizing filters provide a powerful way to separate diffuse and specular reflection; however, traditional methods rely on several captures and require proper alignment of the filters. Recently, camera manufacturers have proposed to embed polarizing micro-filters in front of the sensor, creating a mosaic of pixels with different polarizations. In this paper, we investigate the advantages of such camera designs. In particular, we consider different design patterns for the filter arrays and propose an algorithm to demosaic an image generated by such cameras. This essentially allows us to separate the diffuse and specular components using a single image. The performance of our algorithm is compared with a color-based method using synthetic and real data. Finally, we demonstrate how we can recover the normals of a scene using the diffuse images estimated by our method.


Published in:
Computer Vision - Accv 2018, Pt Ii, 11362, 3-18
Presented at:
14th Asian Conference on Computer Vision (ACCV), Perth, AUSTRALIA, Dec 02-06, 2018
Year:
Jan 01 2019
Publisher:
Cham, SPRINGER INTERNATIONAL PUBLISHING AG
ISSN:
0302-9743
1611-3349
ISBN:
978-3-030-20889-9
978-3-030-20890-5
Keywords:
Laboratories:




 Record created 2019-11-08, last modified 2019-11-14


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