For each inspected container, a collection of product images in sequence at 360° is acquired using high resolution cameras under designed illuminating conditions. Defects on the package are identified and/or measured by dedicated image processing algorithms and the package is classified as conforming or non-conforming accordingly. Non-conforming packages are automatically rejected. In case of detection of Foreign Particulate Matter (FPM) with liquid content: the container is first put into motion, then stopped, followed by the acquisition of product images by high-resolution cameras that record a series of images. With liquid content, the container is put into motion and cameras record a series of images, in sequence, at different moments during rotation.

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The vision technology and automatic control principle adopted in the automatic visual inspection machine to implement the tested product rotate at high speed and brake instantly by mechanical method. Special light source system and ultra-high speed precision industrial camera are used to obtain images of the tested product series. The intelligent image processing algorithm software system independently developed by HAWKEYE is applied to compare, calculate and analyze the images to complete the inspection process of the products. The unqualified products are rejected by the executive mechanism of the automatic control system.?