Full-automatic detection method and system for static characteristic information in dynamic image

摘要

According to a method in the present invention, first whether an inter-frame difference for each pixel in predetermined first region and second region in the dynamic image exceeds a predetermined threshold is judged to determine whether the pixel is a static information point, and when, in the second region, pixels in regions not overlapping with the first region are determined as non-static information points, judgment on the inter-frame difference and the predetermined threshold is stopped; and then static characteristic information in the dynamic image is determined based on the static information points in the first region. Preferably, the inter-frame difference for each pixel in the first region may be re-judged based on an adjusted predetermined threshold, to further determine the static characteristic information in the dynamic image, so that static opaque static characteristic information or static characteristic information with arbitrary degrees of transparency in the dynamic image can be detected.

主权项

1. A full-automatic detection method for static characteristic information in a dynamic image, wherein the full-automatic detection method for static characteristic information in a dynamic image at least comprises:
(1) judging whether a pixel is a static information pixel or not by comparing an inter-frame difference with a predetermined threshold in a predetermined first region and second region; the judging process is stopped when the pixels in the non overlap region of the first and second region are judged as non-static information points; and (2) determining static characteristic information in the dynamic image based on the static information points in the first region; wherein when the static information points in the first region are determined as belonging to the static characteristic information in the dynamic image, the steps (1) and (2) are repeated based on an adjusted predetermined threshold.