Abstract:
An apparatus for processing an optical signal of a spectrometer using sparse nature of a signal spectrum is provided including an optical filter array configured to filter an incident light, an optical sensor array configured to convert the filtered light into charges and a digital signal processing unit configured to perform a digital signal processing on an output from the optical sensor array on the basis of an L1 norm minimization algorithm using sparse nature of a signal spectrum and recover spectrum information of the incident light.
Abstract:
An imaging device using a plurality of lenses according to the present disclosure includes: a compound eye through which a detected image is obtained by a plurality of lenses; a measurement matrix storage unit in which at least one measurement matrix is stored; and an image recovery unit configured to recover an image from the detected image using a digital signal processing technique using sparse representation using the measurement matrix. According to the present disclosure, an imaging device may be obtained which may improve the resolution of an image even while a wide undistorted FOV, an infinite depth, and fast motion recognition, which may be obtained using compound eyes, are achieved. Accordingly, discrimination of an object by the compound eyes may be improved, so that a human having camera-type eyes may acquire image information while advantages of the compound eyes are maximized.