A Video Test Pattern is a standardized image used to evaluate the performance of video equipment. It typically includes various shapes, colors, and grayscale gradients to help technicians assess aspects like color accuracy, contrast, and resolution. These patterns are essential for calibrating televisions, monitors, and cameras to ensure optimal visual quality. Test patterns can also assist in troubleshooting issues with video signals. By displaying specific patterns, users can identify problems such as distortion, color imbalance, or signal interference. Common examples of test patterns include the NTSC color bars and the SMPTE test card, which are widely used in the broadcasting industry.