System and method for outdoor scene change detection

摘要

Described is a system for scene change detection. The system receives an input image (current frame) from a video stream. The input image is color conditioned to generate a color conditioned image. A sliding window is used to segment the input image into a plurality boxes. Descriptors are extracted from each box of the color conditioned image. Thereafter, differences in the descriptors are identified between a current frame and past frames. The differences are attenuated to generate a descriptor attenuation factor αi. Initial scores are generated for each box based on the descriptor attenuation factor αi. The initial scores are filtered to generate a set of conspicuity scores for each box, the set of conspicuity scores being reflective of the conspicuity of each box in the image. Finally, the conspicuity scores are presented to the user or provided to other systems for further processing.

主权项

1. A system for scene change detection, the system comprising:
one or more processors and a memory, the memory having instructions encoded thereon for causing the one or more processors to perform operations of:
receiving an input image from a video stream, the input image being a current frame in the video stream;color conditioning the input image to generate a color conditioned image;using a window to segment the input image into a plurality boxes;extracting descriptors from each box of the color conditioned image;identifying differences in the descriptors between a current frame and past frames;attenuating the differences to generate a descriptor attenuation factor αi;generating initial scores for each box based on the descriptor attenuation factor αi;filtering the initial scores to generate a set of conspicuity scores for each box, the set of conspicuity scores being reflective of a conspicuity of each box in the image; andpresenting to a user or providing for further processing the boxes having conspicuity scores that exceed a predetermined threshold.