Depth interpolation using tangent planes on superpixels of a color image

Kiyoshi Matsuo, Yoshimitsu Aoki

    Research output: Contribution to journalArticlepeer-review


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

    Original languageEnglish
    Pages (from-to)587-598
    Number of pages12
    JournalIEEJ Transactions on Electronics, Information and Systems
    Issue number4
    Publication statusPublished - 2014


    • Depth image interpolation
    • Image segmentation
    • Superpixel

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering


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