Depth interpolation using tangent planes on superpixels of a color image

Kiyoshi Matsuo, Yoshimitsu Aoki

Research output: Contribution to journalArticle

2 Citations (Scopus)


This paper describes a method for accurately interpolating a low-resolution depth image using a high-resolution color image. In our method, first, tangent planes on each superpixel are estimated from sparse depth information and dense color information. Then, the neighboring superpixels that have smooth-connectable tangent planes are connected, and image segmentation to smooth surfaces is achieved. Finally, the low-resolution depth image is interpolated by using this smooth surface segmentation. In experiments with images from the Middlebury stereo data sets, our method interpolates each image at a high rate, and achieves the lowest error when compared to existing techniques.

Original languageEnglish
Pages (from-to)17-29
Number of pages13
JournalElectronics and Communications in Japan
Issue number12
Publication statusPublished - 2015 Dec 1



  • depth image interpolation
  • image segmentation
  • superpixel

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Physics and Astronomy(all)
  • Signal Processing
  • Applied Mathematics

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