| 摘要 |
Described herein are techniques and components for displaying a text advertisement in an online video being viewed by a user. The advertisement is selected based on keywords associated with the online video or the user, and the selected advertisement is presented as an overlay on the rendered video over regions of frames determined to be less important in the video. To determine importance, every frame of the online video is divided into grids, and parameters of the visual data in each grid are analyzed. Based on the analysis of each grid, regions in successive frames are identified to display the selected advertisement.
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