Recently, a method for visual monitoring of rehydration of dried sea cucumbers based on computer vision, invented by Shen Jian et al., Institute of Fishery Machinery Instruments, Chinese Academy of Fishery Sciences, has been granted a national invention patent in 2013. The patent grant number is: ZL200910047140. 3. This application discloses an automatic monitoring method for rehydration of light-dried sea cucumbers based on computer vision, including the following steps: Step 1, rehydration of the pre-treated light-dried sea cucumbers; Step 2, collecting rehydration images, and recording the images in real time Drying the body shape data of the sea cucumber and forming a rehydrated trajectory curve of the light dried sea cucumber which is composed of the real-time sea cucumber body area and rehydration time; Step 3, curve fitting the trajectory curve and calculating The tangent slope of the fitting curve; step four, judging whether the slope of the tangent line of the fitting curve satisfies the rehydration standard, and if it is satisfied, it ends, if it does not meet the step two. The present application uses a video camera to collect images of sea cucumber rehydration in real time, and transmits it to a computer for analyzing and processing the image. By fitting a simulated curve of the sea cucumber rehydration body type change, it is judged whether the sea cucumber rehydration meets the rehydration requirement. Ceiling Diffusers,Ceiling Vent Diffuser,Ceiling Ventilation Grill,Ceiling Diffusers And Grilles Guangzhou Jointair Co., Ltd. , https://www.jointairaccessories.com