This study proposes a disparity estimation method for images captured by cameras with different focal lengths. Whereas a short focal length camera captures a close scene, a long focal length camera captures a far scene. The proposed method computes full disparity maps for both the close and far scenes. To achieve this, we introduce a stereo rectification method that works directly on images with different focal lengths and parameterizes the zoom levels between the two cameras. To evaluate the proposed method, we set up a stereo system with two cameras with different focal lengths and captured sequences of stereo images. In addition, we used KITTI, EISATS, and SceneFlow stereo datasets to simulate images with different focal lengths. Experimental results show that the proposed disparity estimation method successfully computed disparity maps for both near and far scenes, with significantly better performance than state-of-the-art monocular disparity estimation methods. Source code and experimental results are available online at https://github.com/comvisdinh/disparityestimation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Disparity Estimation Using Stereo Images With Different Focal Lengths


    Contributors:


    Publication date :

    2020-12-01


    Size :

    5459554 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Enhanced disparity estimation in stereo images

    Kordelas, G. A. / Alexiadis, D. S. / Daras, P. et al. | British Library Online Contents | 2015


    Vehicle Detection and Disparity Estimation Using Blended Stereo Images

    Zhou, Changxin / Liu, Yazhou / Sun, Quansen et al. | IEEE | 2021


    STEREO DISPARITY ESTIMATION USING DISCRETE ORTHOGONAL MOMENTS

    Andrysiak, T. / Choras, M. / Institute for Systems and Technologies of Information, Control and Communication | British Library Conference Proceedings | 2006


    Shape-indifferent stereo disparity based on disparity gradient estimation

    Park, Jeong-Min / Song, Gwang-Yul / Lee, Joon-Woong | British Library Online Contents | 2017


    Stereo image reconstruction using regularized adaptive disparity estimation

    Bae, K.-H. / Ko, J.-H. / Lee, J.-S. | British Library Online Contents | 2007