| 摘要 |
A system, method and an apparatus for terahertz (THz) imaging based on compressed sensing using a unified sensing mask are provided herein. The system may include a THz radiation transmitter, a window, a unified mask, a THz radiation focusing lens, a THz radiation detector and a processor to generate an image using compressed sensing. The unified mask includes a series of individual masks for filtering radiation directed at the individual masks. Each of the individual masks defines a binary two-dimensional matrix of cells that are either a radiation blocking cell or a radiation passing cell. The unified mask has a first length in a first direction. The window has a terahertz radiation blocking border that defines a terahertz radiation passing opening. The opening has a second length aligned in the first direction and the second length is less than the first length so that the unified mask is movable relative to the window to a plurality of different positions and the opening operates to select one of the individual masks at each of the positions. |
