e simple test in
                  <a href="#G19"></a>
                  can be used.</li>
            <li>If material flashes in only one place on screen at a time and is quite small then the simple test in technique
                  <a href="#G176"></a>
                  can be used.</li>
         </ul>
         <p>For all other types, a tool is needed to keep track of all the factors and apply them to the video on a time-continuous basis.</p>
      </div>
   </section><section class="examples"><h2>Examp