Mr. Duhyeon Bang Profile

Duhyeon Bang

Student at Yonsei Univ

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Proceedings Article | 17 March 2015 Paper

Depth image enhancement using perceptual texture priors

Duhyeon Bang, Hyunjung Shim

Proceedings Volume 9394, 93941C (2015) https://doi.org/10.1117/12.2083094

KEYWORDS: Databases, Image enhancement, 3D image processing, Image quality, Image segmentation, 3D image enhancement, Cameras, Principal component analysis, Visualization, Sensors

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A depth camera is widely used in various applications because it provides a depth image of the scene in real time. However, due to the limited power consumption, the depth camera presents severe noises, incapable of providing the high quality 3D data. Although the smoothness prior is often employed to subside the depth noise, it discards the geometric details so to degrade the distance resolution and hinder achieving the realism in 3D contents.

In this paper, we propose a perceptual-based depth image enhancement technique that automatically recovers the depth details of various textures, using a statistical framework inspired by human mechanism of perceiving surface details by texture priors. We construct the database composed of the high quality normals. Based on the recent studies in human visual perception (HVP), we select the pattern density as a primary feature to classify textures. Upon the classification results, we match and substitute the noisy input normals with high quality normals in the database. As a result, our method provides the high quality depth image preserving the surface details. We expect that our work is effective to enhance the details of depth image from 3D sensors and to provide a high-fidelity virtual reality experience.

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