2results about How to "Reduced dynamic range" patented technology

This invention belongs to the field of image processing technology, specifically relating to a method for detecting the dimensions of die-cut products based on image processing. The method includes: acquiring an initial grayscale image and extracting basic features such as the fundamental gradient matrix, structural tensor, and coarse positioning contour; then calculating the cutting stress edge ambiguity and directional deformation compensation coefficient based on these features; next, constructing an adaptive edge positioning weight using the compensation coefficient as an adjustment factor for weighted grayscale centroid calculation to obtain sub-pixel edge coordinates; finally, fitting and reconstructing the coordinates to obtain a two-dimensional contour and calculating the dimensions. This invention effectively overcomes the interference of deformation, tearing, and microscopic burrs generated during the die-cutting process, shields the stretching effect of specular artifacts, and enables the extracted sub-pixel edges to automatically and accurately return to the true physical contour position, thereby outputting high-precision dimension detection results and ensuring the assembly consistency of downstream components.

This invention relates to the field of seismic signal exploration technology, specifically disclosing a method and apparatus for single-shot energy correction in seismic data contiguous processing. The method includes: performing geometric diffusion energy compensation processing on all single shots across the entire area to obtain single-shot data; generating single-shot energy attributes corresponding to each shot across the entire area based on the single-shot data; smoothing the text format of the single-shot energy attributes to generate single-shot energy adjustment factors; and performing amplitude correction processing on the original single shots based on the single-shot energy adjustment factors. This invention, by statistically analyzing the energy attributes of the original single-shot data, smoothing the energy attributes across the entire work area, extracting energy correction factors for each single shot, and applying these correction factors to the original data, thereby reducing the significant energy differences between blocks. It adaptively reduces the dynamic range of energy distribution in the data, providing good data preparation for subsequent surface-consistent energy compensation methods, and achieving consistency between changes in data energy intensity and objective changes in subsurface lithology.