Method and device for detecting/removing crustacean with untorn shell
AssigneeNichirei Corporation
InventorsMasatoshi Kanaya, Masahiro Niimoto
Life of this patent
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Abstract
A method and apparatus for detecting and removing unstripped residual shell left on shellfish. This method and apparatus are characterized by irradiating a light of specific wave-range onto stripped shellfish after finishing the shell-stripping work thereof. A CCD camera is used to examine the shellfish. It is then determined if there is residual shell on the stripped shellfish on the basis of information on the intensity of fluorescent light that can be obtained from the image taken by the CCD camera. Any shell is then removed.
Claims9
A method of detecting and removing a shell residue left in a shellfish flesh portion, comprising:
- irradiating a light having a peak wavelength from 254 nm to 400 nm directly onto a shellfish flesh portion after finishing a shell-stripping work, wherein the light makes a fluorescent light emit more from the shell residue than from the shellfish flesh portion;
- detecting the fluorescent light emitted from the shell residue;
- and
- removing the shellfish with the shell residue from further processing.
An apparatus for detecting and removing a shell residue left in a shellfish flesh portion, comprising:
- a light source provided for irradiating a light having a peak wavelength from 254 nm to 400 nm directly onto a shellfish flesh portion after finishing a shell-stripping work, wherein the irradiated light makes a fluorescent light emit more from the shell residue than from the shellfish flesh portion;
- a detecting means provided for detecting the fluorescent light emitted from the shell residue;
- and
- a means provided for removing the detected shellfish with the shell residue from further processing.
Dependencies are inferred from the claim text.