Presentation Applet for motion estimation algorithms

Motion estimation algorithms (MEA) are one technique used by e.g. MPEG2 video compression to reduce the video data. These algorithms take advantage of the temporal redundancy of video data: Very often the single frames of video scenes contain nearly the same image data - only some parts of the frame have moved. This applet will demonstrate how MEAs proceed when relocating an image-segment in another image (usually two adjacent frames of a video).

To start, first select the algorithm you want to use from the "Algorithms"-menu. After that select the mode of presentation in the "Mode"-menu:

Step-by-step mode will guide you through the algorithm step by step. To exemplify only a single image-segment (block) will be handled.

All-at-once mode will use the selected algorithm to run through the whole image an relocate every block. The result will be shown as motion-vectors for each block.

After you made your decision, press the "Start!" button in the lower left corner.