Patent ID: 11941886
Assignee: PIXART IMAGING INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A camera apparatus of effectively increasing identification accuracy, the camera apparatus comprising:
an image receiver adapted to acquire a first reference image and a second reference image containing a specific surveillance area respectively via a first exposure parameter and a second exposure parameter greater than the first exposure parameter, and utilize the first exposure parameter and the second exposure parameter to respectively capture a first detection image and a second detection image during an object detection period; and
an operation processor electrically connected to the image receiver, and adapted to compute a first pixel value variation between the first reference image and the first detection image and a second pixel value variation between the second reference image and the second detection image, and analyze the first pixel value variation and the second pixel value variation to determine whether a target object is within the specific surveillance area;
wherein the operation processor is further adapted to decide whether to stop capturing another reference image and another detection image by the second exposure parameter when the target object determined by the first pixel value variation conforms to the target object determined by the second pixel value variation.