Video retargeting: automating pan and scan

When a video is displayed on a smaller display than originally intended, some of the information in the video is necessarily lost. In this paper, we introduce Video Retargeting that adapts video to better suit the target display, minimizing the important information lost. We define a framework that measures the preservation of the source material, and methods for estimating the important information in the video. Video retargeting crops each frame and scales it to fit the target display. An optimization process minimizes information loss by balancing the loss of detail due to scaling with the loss of content and composition due to cropping. The cropping window can be moved during a shot to introduce virtual pans and cuts, subject to constraints that ensure cinematic plausibility. We demonstrate results of adapting a variety of source videos to small display sizes. Categories and Subject Descriptors I.4.9 [Image Processing and Computer Vision]: Applications General Terms Algorithms, ...

• Type: Conference
• Year: 2006
• Where: MM
• Authors: Feng Liu, Michael Gleicher
• Keywords: MM 2006, Target Display, Video Retargeting, Video Retargeting Crops