Method, apparatus, terminal and system for measuring trajectory tracking accuracy of target
AssigneeBoe Technology Group Co., Ltd.
InventorsYu Gu, Xiaojun Tang
Life of this patent
Estimating the term…
Abstract
Described herein are a method, apparatus, terminal, and system for measuring a trajectory tracking accuracy of a target. Using each method, apparatus, terminal, and system to measure the trajectory tracking accuracy of the target includes determining a location information of the actual tracking trajectory of the target; comparing the location information of the actual tracking trajectory with a location information of the target trajectory to determine a variance between the location information of the actual tracking trajectory and the location information of the target trajectory; and determining the tracking accuracy of the target based on the variance.
Claims15
A method for measuring a trajectory tracking accuracy of a target, comprising:
- establishing a world coordinate system, a camera coordinate system and an image coordinate system;
- determining a location parameter of a camera;
- and
- determining a location information of an actual tracking trajectory of the target in the world coordinate system, based on the location parameter;
- comparing the location information of the actual tracking trajectory with a location information of a target trajectory to determine a variance between the location information of the actual tracking trajectory and the location information of the target trajectory;
- and
- determining the tracking accuracy of the target based on the variance;
- wherein the location parameter comprises an internal location parameter and an external location parameter, wherein the internal location parameter is an optical parameter of the camera, and the external location parameter is a conversion coefficient from the world coordinate system to the camera coordinate system.
An apparatus for measuring a trajectory tracking accuracy of a target, comprising a location information determining module, a variance calculation module and an accuracy calculation module, wherein
- the location information determining module is configured to determine a location parameter of a camera and determine a location information of an actual tracking trajectory of the target in a world coordinate system based on the location parameter, wherein the location parameter comprises an internal location parameter and an external location parameter, wherein the internal location parameter is an optical parameter of the camera, and the external location parameter is a conversion coefficient from the world coordinate system to a camera coordinate system;
- the variance calculation module is configured to compare the location information of the actual tracking trajectory with a location information of a target trajectory to determine the variance between the location information of the actual tracking trajectory and the location information of the target trajectory, and
- the accuracy calculation module is configured to determine a tracking accuracy of the target based on the variance.
A terminal for measuring a trajectory tracking accuracy of a target, comprising a processor and a memory for storing a computer program, wherein the computer program, when executed by the processor, implements a method for measuring a trajectory tracking accuracy of a target, comprising:
- establishing a world coordinate system, a camera coordinate system and an image coordinate system;
- determining a location parameter of a camera;
- and
- determining a location information of an actual tracking trajectory of the target in the world coordinate system, based on the location parameter;
- comparing the location information of the actual tracking trajectory with a location information of a target trajectory to determine a variance between the location information of the actual tracking trajectory and the location information of the target trajectory;
- and
- determining the tracking accuracy of the target based on the variance;
- wherein the location parameter comprises an internal location parameter and an external location parameter, wherein the internal location parameter is an optical parameter of the camera, and the external location parameter is a conversion coefficient from the world coordinate system to the camera coordinate system.
Dependencies are inferred from the claim text.