Joint-adaptive bilateral depth map upsampling

作者:

Highlights:

• We present a new depth upsampler in which an upsampled depth map is computed at each pixel as the average of neighboring pixels, weighted by a color and depth intensity filter.

• The proposed method features two parameters, an adaptive smoothing parameter and a control parameter.

• The adaptive smoothing parameter is determined based on the ratio between a depth map and its corresponding color image.

• The control parameter assigns a larger weighting factor to pixels in the object to which a missing pixel belongs.

• In a comparison with five existing upsamplers, the proposed method outperforms all five in terms of both objective and subjective quality.

摘要

Highlights•We present a new depth upsampler in which an upsampled depth map is computed at each pixel as the average of neighboring pixels, weighted by a color and depth intensity filter.•The proposed method features two parameters, an adaptive smoothing parameter and a control parameter.•The adaptive smoothing parameter is determined based on the ratio between a depth map and its corresponding color image.•The control parameter assigns a larger weighting factor to pixels in the object to which a missing pixel belongs.•In a comparison with five existing upsamplers, the proposed method outperforms all five in terms of both objective and subjective quality.

论文关键词:Depth upsampling,3D video,Image enhancement,Bilateral filter

论文评审过程:Received 1 September 2013, Revised 29 November 2013, Accepted 20 January 2014, Available online 5 February 2014.

论文官网地址:https://doi.org/10.1016/j.image.2014.01.011