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Fast Content-Aware Video Retargeting Algorithm

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2013, 18(11), pp.77-86
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

DaeHyun Park 1,  Kim, yoon 2

1강원대학교 컴퓨터정보통신공학과
2강원대학교

Accredited

ABSTRACT

In this paper, we propose a fast video retargeting method which preserves the contents of a video and converts the image size. Since the conventional Seam Carving which is the well-known content-aware image retargeting technique uses the dynamic programming method, the repetitive update procedure of the accumulation energy is absolutely needed to obtain seam. The energy update procedure cannot avoid the processing time delay because of many operations by the image full-searching. By applying the proposed method, frames which have similar features in video are classified into a scene, and the first frame of a scene is resized by the modified Seam Carving where multiple seams are extracted from candidate seams to reduce the repetitive update procedure. After resizing the first frame of a scene, all continuous frames of the same scene are resized with reference to the seam information stored in the previous frame without the calculation of the accumulation energy. Therefore, although the fast processing is possible with reducing complexity and without analyzing all frames of scene, the quality of an image can be analogously maintained with an existing method. The experimental results show that the proposed method can preserve the contents of an image and can be practically applied to retarget the image on real time.

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