Image positioning method and interactive imaging system using the same

摘要

There is provided an image positioning method including the steps of: capturing an image frame with an image sensor; identifying at least on object image in the image frame; comparing an object image size of the object image with a size threshold and identifying the object image having the object image size larger than the size threshold as a reference point image; and positioning the reference point image. There is further provided an interactive imaging system.

主权项

1. An image positioning method, comprising:
capturing an image frame with an image sensor; identifying a pixel or a plurality of adjacent pixels in the image frame having an intensity value larger than an intensity threshold as at least one object image in the image frame with a processing unit, wherein the intensity threshold is dynamically set as an average of intensity values of pixels of a previous image frame multiplied by a ratio X which is greater than zero and less than or equal to one, and the previous image frame is captured by the image sensor; comparing, using the processing unit, an object image size of the at least one object image with a size threshold, which is a predetermined number of pixels, and identifying the object image having the object image size larger than the size threshold as a reference point image; and positioning the reference point image with the processing unit according to intensity values and pixel positions of at least a part of pixels of the reference point image.