“…Recently, many late‐model techniques, such as computer vision, spectroscopic, electronic nose, and multi‐source information fusion, have been widely used to detect meat freshness. Among them, near‐infrared spectroscopy (NIRS, 900–2,500 nm) and hyperspectral imaging (HSI, 400–1,000 nm) have been widely used to detect the freshness of chicken (Khulal, Zhao, Hu, & Chen, 2016), mutton (Jiang et al, 2018; Qiu et al, 2018 ), duck (Qiao et al, 2017), pork (Lee, Kim, Lee, & Cho, 2018; Qu et al, 2018), beef (Ma et al, 2012; Crichton et al, 2017), fish (Huang et al, 2014; Zhang et al, 2018) and other meat products due to their advantages of rapidity, non‐destructiveness and no pollution in the process of detecting meat products. In addition, multi‐source information fusion technique has attracted great attention of domestic and foreign researchers recently.…”