ABSTRACT
In computer vision technology, the image of an object is captured, enhanced, processed, and analyzed to obtain useful information about the object. Different types of cameras such as monochrome, color, near-infrared (NIR), mid-infrared, thermal infrared, infrared hyper spectral, x-ray, and others are used to acquire images remotely and characterize the internal and external qualities of the object instantaneously. The basic principle and components of a computer vision system are explained in Figures 15.1 and 15.2. Computer vision is a reliable, quick, nondestructive, noncontact (which means that samples are not in physical contact while testing) and low-cost method of quality evaluation. In many applications, this technology has replaced manual grading and inspection by providing objective decision-making criteria. It also has the potential to detect the invisible surface quality and internal characteristics of the products while using an appropriate imaging system.
