Imaging device and method for imaging hidden objects

摘要

An imaging device that segments a data set into one or more data sub-sets, each data sub-set comprising a plurality of measurement values of one or more neighboring spots; determines, per pixel, costs for the measurement values acquired at a position corresponding to a position of the pixel determines a pixel value for a pixel by determining a label value from a set of label values; and selects the measurement value at the spot indicated by the determined label as the pixel value.

主权项

1. An imaging device comprising:
a detector that detects electromagnetic signals in a predetermined spectral range from a plurality of positions of a scene to obtain a three-dimensional data set of measurement values at a plurality of spots arranged at different positions and different depth levels; and circuitry that determines pixel values of pixels of one or more images to be reconstructed, the circuitry
segmenting the data set into one or more data sub-sets, each data sub-set comprising a plurality of measurement values of one or more neighboring spots;determining, per pixel, costs for the measurement values acquired at a position corresponding to a position of the pixel by modifying the measurement values of one or more data sub-sets that include at least one measurement value acquired at a position corresponding to the position of the pixel;determining a pixel value for a pixel by determining a label value from a set of label values, a label indicating a spot among the spots arranged at positions corresponding to the position of the pixel; andselecting the measurement value at the spot indicated by the determined label as the pixel value, whereinthe label value is determined by determining an extremum of energy values determined for different spots of the data set based on an energy function, the energy function forming a sum adding a first summand including the costs of the spots at the position corresponding to the position of the pixel for which the energy value is determined, and a second summand taking into account at least one of the costs of at least one neighboring spot at a neighboring position and a neighboring depth value within the data set.