CPC G01N 21/9027 (2013.01) [B65B 1/02 (2013.01); B65B 1/04 (2013.01); B65B 47/04 (2013.01); B65B 57/02 (2013.01); G01N 21/8806 (2013.01); G01N 2201/061 (2013.01)] | 6 Claims |
1. An inspection device comprising:
an illumination device that irradiates an object with near-infrared light;
a spectroscope that disperses reflected light from the object irradiated with the near-infrared light;
an imaging device that takes a spectroscopic image of the reflected light dispersed by the spectroscope; and
a processor that:
obtains spectral data at a plurality of points on the object based on the spectroscopic image obtained by the imaging device,
selects, from among the spectral data at the plurality of points, a group having a highest density of luminance values of a predetermined wavelength component as a dense spectral data group, and
performs a predetermined analysis for the object based on the dense spectral data group and detects a different type of object.
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