US 12,225,294 B2 · Automatic tracking method and tracking system applied to pan-tilt-zoom camera device

Abstract

An automatic tracking method used in conjunction with a PTZ camera device, wherein an image capturing range of the PTZ camera device is set with a first preset range and a second preset range. The method includes the following steps. Step 1 performs a real-time tracking mode when a target object is within the first preset range, wherein the camera position of a first lens of the PTZ camera device is adjusted with the movement of the target object. Step 2 records an object distance value and perform a region tracking mode when the target object is within the second preset range, which fixes the camera position of the first lens of the PTZ camera device and tracks the target within the second preset range object. Step 3 switches from the region tracking mode to the real-time tracking mode when the object distance of the target object changes.

Claims11

Dependent claims

An automatic tracking method applied to the a pan-tilt-zoom (PTZ) camera device, in which a first preset range and a second preset range are set in an image capturing range of the PTZ camera device, comprising:

performing a real-time tracking mode when a target object exists in the first preset range, and a capture position of a first lens of the PTZ camera device is adjusted following a movement of the target object;
recording an object distance value and performing a region tracking mode to adjust the capture position of the first lens of the PTZ camera device according to the second preset range and to track the target object within the second preset range when the target object exists in the second preset range;
and
switching the region tracking mode to the real-time tracking mode when the object distance value of the target object is changed.

1 more element

An automatic tracking system applied to a pan-tilt-zoom (PTZ) camera device, comprising:

a first lens;
a first image sensor, which is disposed opposite to the first lens and transmits an image;
and
an image processor, which is electrically connected with the first image sensor, selects to track a target object in a real-time tracking mode or a region tracking mode according to the target object in the image, a preset range where the target object is located, and an object distance value, and outputs a computing information;
wherein the first lens follows a movement of the target object to dynamically adjust a capture position when the image processor selects the real-time tracking mode;
wherein the first lens fixes the capture position when the image processor selects the region tracking mode.

3 more elements

Dependencies are inferred from the claim text.

Automatic tracking method and tracking system applied to pan-tilt-zoom camera device

Life of this patent

Automatic tracking method and tracking system applied to pan-tilt-zoom camera device

Life of this patent

Abstract

Claims11