AUTOMATIC DETECTION OF LOGOS IN VIDEO SEQUENCES

摘要

Particular embodiments automatically identify and track a logo that appears in video content. For example, particular embodiments can track a branding logo's position and size without any prior knowledge about the logo, such as the position, type, structure, and content of the logo. In one embodiment, a heat map is used that accumulates a frequency of short-term logos that are detected in the video content. The heat map is then used to identify a branding logo in the video content.

主权项

1. A method comprising:
generating an image-based set of accumulators, the image-based set of accumulators indicating a frequency and a position of a set of short-term logos determined in a first set of frames in a video sequence of video content; detecting a short-term logo is included in a second frame in the video sequence; determining when the frequency of the image-based set of accumulators is above a threshold; determining when the short-term logo for the second frame matches the position of the image-based set of accumulators; and outputting information for the image-based set of accumulators based on the position, wherein an encoding system uses the information in an encoding process.