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多视点稀疏测量的图像绘制方法

兰诚栋 林宇鹏 方大锐 陈建

兰诚栋, 林宇鹏, 方大锐, 陈建. 多视点稀疏测量的图像绘制方法.自动化学报, 2021, 47(4): 882-890 doi: 10.16383/j.aas.c180199
引用本文: 兰诚栋, 林宇鹏, 方大锐, 陈建. 多视点稀疏测量的图像绘制方法.自动化学报, 2021, 47(4): 882-890 doi: 10.16383/j.aas.c180199
Lan Cheng-Dong, Lin Yu-Peng, Fang Da-Rui, Chen Jian. Multi-view sparse measurement for image-based rendering method. Acta Automatica Sinica, 2021, 47(4): 882-890 doi: 10.16383/j.aas.c180199
Citation: Lan Cheng-Dong, Lin Yu-Peng, Fang Da-Rui, Chen Jian. Multi-view sparse measurement for image-based rendering method. Acta Automatica Sinica, 2021, 47(4): 882-890 doi: 10.16383/j.aas.c180199

多视点稀疏测量的图像绘制方法

doi: 10.16383/j.aas.c180199
基金项目: 

国家自然科学基金 62001117

国家自然科学基金 61671152

国家自然科学基金 61471124

福建省自然科学基金 2017J01757

福建省自然科学基金 2014J01234

福州大学科研启动基金 GXRC-17034

详细信息
    作者简介:

    林宇鹏  福州大学物理与信息工程学院硕士研究生. 主要研究方向为图像处理. E-mail: 18850766818@163.com

    方大锐  福州大学物理与信息工程学院硕士研究生. 主要研究方向为图像处理与压缩感知应用. E-mail: N161120076@fzu.edu.cn

    陈建  福州大学物理与信息工程学院讲师. 主要研究方向为视频编码, 压缩感知, 点云压缩. E-mail: chenjian-fzu@163.com

    通讯作者:

    兰诚栋  福州大学物理与信息工程学院副教授. 主要研究方向为图像处理与视频编码. 本文通信作者. E-mail: lancd@fzu.edu.cn

Multi-view Sparse Measurement for Image-based Rendering Method

Funds: 

National Natural Science Foundation of China 62001117

National Natural Science Foundation of China 61671152

National Natural Science Foundation of China 61471124

Natural Science Foundation of FuJian Province 2017J01757

Natural Science Foundation of FuJian Province 2014J01234

Fuzhou University Research Startup Fund GXRC-17034

More Information
    Author Bio:

    LIN Yu-Peng  Master student at the College of Physics and Information Engineering, Fuzhou University. His main research interest is image processing

    FANG Da-Rui  Master student at the College of Physics and Information Engineering, Fuzhou University. His research interest covers image processing and the application of compressed sensing

    CHEN Jian  Lecturer at the College of Physics and Information Engineering, Fuzhou University. Her research interest covers video coding, compressed sensing, and point cloud compression

    Corresponding author: LAN Cheng-Dong  Associate professor at the College of Physics and Information Engineering, Fuzhou University. His research interest covers image processing and video coding. Corresponding author of this paper
  • 摘要: 为了减少所需采集的视频数据量, 基于图像绘制(Image-based rendering, IBR) 的前沿方法将稠密视点信息映射成压缩感知框架中的原始信号, 并将稀疏视点图像作为随机测量值, 但低维测量信号由所有稠密视点信息线性组合而成, 而稀疏视点图像仅仅来源于部分视点信息, 导致稀疏视点采集的图像与低维测量信号不一致. 本文提出利用间隔采样矩阵消除测量信号与稀疏视点图像位置之间的差异, 进而通过约束由测量矩阵和基函数构成的传感矩阵尽量满足有限等距性, 使得能够获得原始信号的唯一精确解. 仿真实验结果表明, 相比于前沿方法, 本文提出的方法对于不同复杂程度的场景重建都提高了主客观质量.
    Recommended by Associate Editor WU Yi-Hong
    1)  本文责任编委 吴毅红
  • 图  1  基于压缩感知框架的稠密多视点图像重建原理

    Fig.  1  Principle of dense multi-view image reconstruction based on compressed sensing framework

    图  2  构建稀疏视点测量矩阵与自适应稀疏基函数

    Fig.  2  Constructing sparse viewpoint measurement matrix and adaptive sparse basis function

    图  3  EPI及其频谱示意图

    Fig.  3  EPI and its spectrum diagram

    图  4  图像绘制算法流程

    Fig.  4  Image rendering algorithm flow

    图  5  基向量个数与重建误差的关系

    Fig.  5  The relationship between the number of base vectors and reconstruction error

    图  6  主观质量对比图((a)原始图像; (b)傅里叶频域滤波; (c)小波基稀疏重建; (d)本文重建方法)

    Fig.  6  Subjective quality comparison chart ((a) Original image; (b) Fourier frequency domain filtering; (c) Wavelet base sparse reconstruction; (d) Reconstruction method)

    表  1  算法参数说明

    Table  1  Algorithm parameter description

    重建方法 测试序列 压缩传感矩阵 采样点倍数 测量矩阵
    傅里叶频域滤波重建 8组斯坦福公共测试序列 基于傅里叶基 0.5 多视点间隔测量矩阵
    小波基稀疏重建 8组斯坦福公共测试序列 基于小波基 0.5 多视点间隔测量矩阵
    多视点稀疏测量约束重建 8组斯坦福公共测试序列 基于多视点稀疏测量约束 0.5 多视点间隔测量矩阵
    下载: 导出CSV

    表  2  重建图像客观质量PSNR (平均值)比较

    Table  2  Comparison of objective quality PSNR (average) of reconstructed images

    重建方法 测试序列
    Bracelet Bunny Cards and ball Chess Jelly Beans Knights Bulldozer Truck
    傅里叶频域滤波重建 0.84 0.93 0.80 0.92 0.95 0.85 0.78 0.91
    小波基稀疏重建 0.95 0.81 0.94 0.95 0.98 0.94 0.92 0.96
    多视点稀疏测量约束重建 0.97 0.94 0.97 0.96 0.96 0.98 0.95 0.94
    下载: 导出CSV

    表  3  重建图像客观质量SSIM (平均值)比较

    Table  3  Comparison of objective quality SSIM (average) of reconstructed images

    重建方法 测试序列
    Bracelet Bunny Cards and ball Chess Jelly Beans Knights Bulldozer Truck
    傅里叶频域滤波重建 23.06 34.22 22.15 30.44 34.33 25.01 23.66 33.13
    小波基稀疏重建 30.15 36.56 30.33 34.61 39.30 32.64 31.34 40.76
    多视点稀疏测量约束重建 37.39 39.63 36..35 39.21 38.40 37.34 41.32 40.29
    下载: 导出CSV
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  • 收稿日期:  2018-04-09
  • 录用日期:  2018-10-11
  • 刊出日期:  2021-04-23

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