“Visual Media Retargeting” by Shamir and Sorkine-Hornung
Conference:
Type(s):
Title:
- Visual Media Retargeting
Presenter(s)/Author(s):
Abstract:
The increasing variety of commonly used display devices, especially mobile devices, requires adapting visual media to different resolutions and aspect ratios – a process called “retargeting”. The media retargeting problem is further accentuated by the explosion of image and video content on the web.
This course presents a comparative overview of the latest research in visual-media retargeting. It focuses on content-aware approaches, which, contrary to traditional scaling and cropping, adapt to the salient information within the image or video and rescale the content while preserving visually important information. Topics include:
• Algorithmic details and practical considerations of the retargeting pipeline, including its two main parts (saliency estimation and resizing operators).
• Recent trends in retargeting operators, namely discrete graph-based approaches, also known as seam carving.
• Continuous methods that operate by image and video warping.
• Temporally coherent video retargeting and multi-operator frameworks.
The course illuminates the theoretical foundations and practical issues involved in media retargeting, and provides attendees a comprehensive understanding of the state of the art. It includes many live demos of the various resizing techniques.
Additional Information:
Prerequisites
Knowledge of basic graphics (pixels, video, color), basic mathematics (calculus: functions, derivatives, gradients; algebra: linear systems, minimization), and basic algorithms (graphs, nodes, edges, minimal path).
