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- W4362589430 abstract "Repetitive textures in the depth estimation of weakly textured surfaces lead to numerous errors. The existing technology does not provide a complete method for light-field depth estimation in weak-texture scenes. Therefore we developed an algorithm that estimates the cost volume using speckle stereo correspondences. The subpixel-matching result is obtained using the adaptive label step length displacement theorem. The proposed method can adaptively select an appropriate step length for the sub-pixel phase-shift theorem without depending on the dataset category. The build cost volume can be adapted for weakly textured scenes. A common dataset was used to evaluate the effectiveness of the optical flow method for the adaptive selection of step length. Finally, high-precision step gauge blocks with a step difference of 10 mm were used to verify the depth-direction errors, which were less than 0.35 mm." @default.
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- W4362589430 date "2023-06-01" @default.
- W4362589430 modified "2023-09-27" @default.
- W4362589430 title "Dynamic depth estimation of weakly textured objects based on light field speckle projection and adaptive step length of optical flow method" @default.
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- W4362589430 doi "https://doi.org/10.1016/j.measurement.2023.112834" @default.
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