• Spacecraft Recovery & Remote Sensing
  • Vol. 45, Issue 4, 99 (2024)
Wenhuan YANG1, Shuai ZHANG2, Chao SUN3, and Ao ZHANG2
Author Affiliations
  • 1China SIWEI Surveying and Mapping Technology Co., Ltd., Beijing 100086, China
  • 2China Centre for Resources Satellite Data and Application, Beijing 100094, China
  • 3China Aerospace Science and Technology Corporation, Beijing 100048, China
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    DOI: 10.3969/j.issn.1009-8518.2024.04.011 Cite this Article
    Wenhuan YANG, Shuai ZHANG, Chao SUN, Ao ZHANG. Study on Efficient Dense Matching Method of Stereo Mapping Satellite Image[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(4): 99 Copy Citation Text show less
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    实验组别影像角色卫星载荷分辨率/m影像尺寸/像素×像素
    第一组左影像ZY-3 FWD3.52 010×2 010
    右影像ZY-3 BWD3.52 010×2 010
    第二组左影像GF-7 FWD0.653 010×3 010
    右影像GF-7 BWD0.653 010×3 010
    Table 1. Experimental data information
    参数金字塔尺度3金字塔尺度2金字塔尺度1
    降采样比例421
    匹配窗口尺寸/像素×像素7×77×77×7
    代价聚合方向/个888
    惩罚参数P1333
    惩罚参数P2101010
    视差浮动值v1084
    Table 2. Experimental parameters of dense matching
    影像实验项目参数
    视差范围/像素213141
    ZY-3影像实验(影像尺寸/像素×像素:502×502)SGM用时/s106.75369.20537.97
    SGM-li用时/s13.0817.0823.61
    MCP用时/s3.674.264.74
    GF-7影像实验(影像尺寸/像素×像素:752×752)SGM用时/s226.20468.051 065.12
    SGM-li用时/s27.2139.5252.26
    MCP用时/s7.8211.0213.75
    Table 3. Statistics of cost aggregation and parallax determination time in different parallax ranges
    影像实验项目参数
    金字塔尺度21
    ZY-3影像实验影像尺寸/像素×像素1 005×1 0052 010×2 010
    视差范围/像素179
    SGM用时/s312.77618.30
    SGM-li用时/s40.0688.14
    MCP用时/s14.0043.30
    GF-7影像实验影像尺寸/像素×像素1 505×1 5053 010×3 010
    视差范围/像素179
    SGM用时/s646.301 357.04
    SGM-li用时/s85.86188.37
    MCP用时/s33.13110.27
    Table 4. Time statistics for cost aggregation and parallax determination at different pyramid scales
    参数ZY-3影像实验GF-7影像实验
    视差差值阈值/像素11
    金字塔尺度321321
    视差一致像素占比/%98.1397.3996.1294.5496.3292.89
    Table 5. Comparison statistics of parallax map between SGM and MCP
    参数ZY-3影像GF-7影像
    高程差值阈值/m41
    高程一致像素占比/%98.0996.73
    Table 6. Comparative statistics of SGM and MCP DSM
    方法ZY-3影像DSM精度/mGF-7影像DSM精度/m
    SGM4.24.5
    MCP4.64.9
    Table 7. DSM accuracy statistics generated by SGM and MCP