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利用Videometer多光谱成像系统无损检测猪肉片中嵌入骨头

发表时间:2020-12-31 13:41:44点击:36

来源:北京博普特科技有限公司

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最近,来自合肥的科学家利用Videometer多光谱成像系统发表了题为“A rapid and non-destructive approach to identify bone fragments embedded in lean pork slices based on multispectral imaging and chemometrics”的文章。

北京博普特科技有限公司是丹麦Videometer公司中国区总代理,全面负责其系列产品在中国市场的推广、销售和售后服务。

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A rapid and non-destructive approach to identify bone fragments embedded in lean pork slices based on multispectral imaging and chemometrics

Highlights

Bone fragments in pork could be rapidly detected by spectra from seven key bands.

Region-of-interests extracted by feature image at 700 nm could build a best model.

A best performance for identifying bone fragments was achieved by LDA model.

The classification visualization could provide objective evidences for test results.

Abstract

The feasibility of multispectral imaging in the range of 405–970 nm was assessed as a rapid and non-destructive technique for classifying lean pork slices (LPSs) and LPSs contained bone fragments. The region-of-interest (ROI-2) extracted by feature image at 700 nm played a key role to improve the precision of classification models. Seven key wavelengths (450, 470, 645, 660, 700, 780 and 970 nm) were identified using successive projections algorithm. Compared with the models established by the whole spectra, the spectral data extracted from ROIs-2 at the key wavelengths gave the highest classification of 100% for test set. A best performance for identifying the bone fragments embedded in LPSs was achieved by linear discriminant analysis model with misclassification rate less than 1% for training and test sets based on the key wavelengths. Results of satisfactory identification and visualization of bone fragments indicated that multispectral imaging could serve as an online approach for potential industrial applications.

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