Method and apparatus for object tracking and 3d display based thereon

An object tracking apparatus, comprising:

• an object tracking unit configured to track a position of an object to obtain current position coordinates of the tracked object;
• and
• an updating and compensation unit, including a filter acting on a time-varying system, configured to:
• when the object tracking unit outputs the position coordinates of the tracked object for a first time, initialize the filter acting on the time-varying system;
• when the object tracking unit outputs new current position coordinates with a spatial delay of the tracked object, update a system state through the filter acting on the time-varying system;
• and
• when speed of the tracked object is greater than a compensation determination threshold, provide delay compensation for the current position coordinates of the tracked object through the filter acting on the time-varying system and output the compensated current position coordinates of the tracked object.

A 3D display apparatus, comprising:

• an object tracking apparatus, including an object tracking unit and an updating and compensation unit, configured to obtain current position coordinates of a tracked object, wherein:
• the object tracking unit is configured to track a position of the tracked object to obtain current position coordinates of the tracked object;
• and
• the updating and compensation unit, including a filter acting on a time-varying system, is configured to:
• when the object tracking unit outputs the position coordinates of the tracked object for a first time, initialize the filter acting on the time-varying system;
• when the object tracking unit outputs new current position coordinates with a spatial delay of the tracked object, update a system state through the filter acting on the time-varying system;
• and
• when speed of the tracked object is greater than a compensation determination threshold, provide delay compensation for the current position coordinates of the tracked object through the filter acting on the time-varying system and output the compensated current position coordinates of the tracked object;
• a control module configured to control an image arrangement based on the current position coordinates;
• a display module configured to display an image corresponding to the image arrangement;
• and
• a light-splitting device configured to send the image displayed by the display module to the left eye and right eye of a user, such that a 3D image is displayed.