MAGIC OF MATCH MOVING VISUAL EFFECTS

 In visual effects, match moving is a technique that allows the insertion of computer generated objects into shot with correct matching of movement and camera perspective.Sometimes it is referred to as motion tracking or camera solving.It seems very simple when it sounds but it is one of the technology which revolutionized the post.

Hulk, Captain Marvel, Spider man, Black Panther, Thor Ragnarok, and their legendary likes would not be possible without the art of match-moving.Today we can insert 3D elements into a 2D video clip after scanning the shot with match moving softwares.

The reason why match move artists track a scene is so that they can place objects, often CG elements that match the different perspectives of frame shots.

We need a virtual camera that moves exactly like the camera in the shot to place 3d objects.A good match move should be invisible to eye.No one should be able to identify that such visual effect was performed.While at it, it is worthwhile noting that matchmoving is different from motion capture.

In Martin Scorsese’s “Hugo,” some mastered techniques were used that includes tracking, recording, and reproducing motion of live footage to a virtual camera.

Matching the computer-generated objects to shot is not as simple work.

Matchmoving is a name derived from matching of motion of live footage to match a virtual camera. 

Automatic Tracking

Automatic tracking uses the algorithms in a 3dtracking software tools  to identify and follow features throughout the footage. The software also scans focal length, motion, and lens distortion of a camera .Automatic tracking might struggle with shots captured by a shaking handheld camera or repetitive objects in the environment.

 

This automated method may find it difficult to detect the finest details in the motion blur and out of focus footage.

  At that time we need to use tracking matte  which is similar in concept to a garbage matte .

Two dimensional tracking only tracks features in two-dimensional space and we can use it if there is no major changes in camera perspective.

For example, changing the billboard.Three-dimensional match moving tools make it possible to to derive camera movement and transfer it to computer graphics softwares to animate virtual cameras. Kindly search dcstechie yash to see this blog on google search.

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