초록 ▼

A position tracking system includes an infrared-sensitive device, such as an infrared camera that generates signals in response to detected infrared light in a field of view of the infrared-sensitive device. A processor is responsive to the signals generated by the infrared-sensitive device for dete

A position tracking system includes an infrared-sensitive device, such as an infrared camera that generates signals in response to detected infrared light in a field of view of the infrared-sensitive device. A processor is responsive to the signals generated by the infrared-sensitive device for determining a position of the detected infrared light. The processor also generates tilt and pan signals based on the position of the detected infrared light. A tilt and pan mechanism moves a visible-light video camera in response to the tilt and pan signals from the processor. The active infrared light-emitting device includes a loop having at least two infrared light-emitting elements disposed along the loop, on opposite sides of the loop. A control box is disposed in the loop and is in electrical communication with the infrared light-emitting elements. When the loop is disposed around an object that rotates relative to the infrared-sensitive device, a constantly unimpeded viewing channel is provided between the infrared-sensitive device and at least one of the elements due to the positioning of the elements. The position information obtained from the infrared-sensitive device is used to direct a visible-light camera to track the active infrared light-emitting device in a manner similar to that performed by a human camera operator.

대표청구항 ▼

What is claimed is: 1. A position tracking system comprising:an infrared-sensitive device that generates signals in response to detected infrared light in a field of view of said infrared-sensitive device;a processor responsive to said signals generated by said infrared-sensitive device for determin

What is claimed is: 1. A position tracking system comprising:an infrared-sensitive device that generates signals in response to detected infrared light in a field of view of said infrared-sensitive device;a processor responsive to said signals generated by said infrared-sensitive device for determining a position of the detected infrared light with said processor generating tilt and pan signals based on said position, wherein said processor determines said position of the detected infrared light in a two-dimensional coordinate image plane based on said signals and determines a distance of said position from a set point in the two-dimensional coordinate image plane;a visible-light video camera for recording visible light within the same field of view as the infrared-sensitive device;a tilt and pan mechanism that moves said visible-light video camera in response to said tilt and pan signals from said processor; andan active infrared light-emitting device including a loop having at least two infrared light-emitting elements disposed along said loop on opposite sides thereof and a control box disposed in said loop in electrical communication with said infrared light-emitting elements for providing a constantly unimpeded viewing channel between said infrared-sensitive device and at least one of said elements when said loop is disposed around an object that rotates relative to said infrared-sensitive device;wherein said loop is further defined as necklace or accessory to be placed around a person's waist, neck, or other appendage.