首页> 外文学位 >Disparity estimation and intermediate view reconstruction for novel applications in stereoscopic video.
【24h】

Disparity estimation and intermediate view reconstruction for novel applications in stereoscopic video.

机译:立体视频中新颖应用的视差估计和中间视图重建。

获取原文
获取原文并翻译 | 示例

摘要

This thesis addresses the problem of computing 2-D disparity fields from stereo image pairs and applying them to intermediate view reconstruction (IVR) via disparity-compensated interpolation. Intermediate views are calculated using a linear filter with angle-dependent coefficients. Two existing disparity estimation algorithms are adapted to perform IVR, and results are used for parallax adjustment of still stereo images. In one case, the well-known block matching (BM) technique is used, and several novel algorithm enhancements are proposed. The final BM scheme employs three-component estimation, a spatial smoothness constraint, and a quadtree structure. A procedure for targeting problematic blocks that requires splitting based on robust estimation is proposed, and an efficient approach for the reestimation of sub-blocks is developed. A technique for eliminating component-mismatches in stereo pairs is also examined. The accuracy of estimations based on these "balanced" images is seen to increase.;In the other case, the ill-posed problem of obtaining dense disparity maps is addressed, and the method of regularization is used to compute pixel-based vector fields for intermediate views. The conclusion is that although single image reconstruction results are comparable in both cases, the approach based on regularization is superior to the block-based scheme for a dynamic sequence of such reconstructions. Both approaches are applied to stereo parallax adjustment for still images, and numerous experimental results are included.
机译:本文解决了从立体图像对计算二维视差场并将其通过视差补偿插值应用于中间视图重建(IVR)的问题。使用具有依赖于角度的系数的线性滤波器来计算中间视图。现有的两种视差估计算法适用于执行IVR,并且将结果用于静态立体图像的视差调整。在一种情况下,使用了众所周知的块匹配(BM)技术,并提出了几种新颖的算法增强功能。最终的BM方案采用三分量估计,空间平滑约束和四叉树结构。提出了一种针对问题块的方法,该方法需要基于鲁棒估计进行分割,并提出了一种有效的子块重估计方法。还研究了消除立体声对中组件不匹配的技术。在这些情况下,基于这些“平衡”图像的估计精度将会提高。在另一种情况下,解决了获取密集视差图的不适定问题,并且使用了正则化方法来计算基于像素的矢量场中间意见。结论是,尽管在两种情况下单个图像重建结果都是可比较的,但是对于这种重建的动态序列,基于正则化的方法优于基于块的方案。两种方法都适用于静止图像的立体视差调整,并且包括许多实验结果。

著录项

  • 作者

    Mancini, Anthony.;

  • 作者单位

    McGill University (Canada).;

  • 授予单位 McGill University (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.Eng.
  • 年度 1998
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号