The invention belongs to the technical field of
nondestructive testing, and relates to a
nondestructive testing method for the internal eating quality of
Eriocheir sinensis based on a
smart phone. The method comprises the following steps: taking
Eriocheir sinensis in different mature periods as samples, acquiring
spectral data of crab meat,
hepatopancreas, female crab
gonad and male crab
gonad ROI of the samples by utilizing a
spectral data acquisition
system based on the
smart phone, and measuring the contents of characteristic chemical substances of the samples; carrying out SG smooth filtering preprocessing on the
spectral data; according to the maturity of the samples, combining with the characteristic
chemical substance content of crab meat,
hepatopancreas, female crab
gonad and male crab sex to formulate the grading index of the internal eating quality of the
Eriocheir sinensis; enabling the preprocessed spectral data to be in one-to-one correspondence with the characteristic
chemical substance content data, and obtaining the characteristic
wavelength corresponding to each part of the sample through an
algorithm; constructing a prediction model according to the characteristic
wavelength data and the edible quality grading indexes. The method has the advantages of accuracy, high efficiency, no damage and real-time performance, and makes up the vacancy of the grading standard of the internal edible quality of the commercial crabs.