객체의 시공간적 움직임 정보를 이용한 내용 기반 비디오 검색 알고리즘

Content-Based Video Retrieval Algorithms using Spatio-Temporal Information about Moving Objects

  • 정종면 (한국전자통신연구원 방송미디어연구부) ;
  • 문영식 (한양대학교 컴퓨터공학과)
  • 발행 : 2002.10.01

초록

In this paper efficient algorithms for content-based video retrieval using motion information are proposed, including temporal scale-invariant retrieval and temporal scale-absolute retrieval. In temporal scale-invariant video retrieval, the distance transformation is performed on each trail image in database. Then, from a given que교 trail the pixel values along the query trail are added in each distance image to compute the average distance between the trails of query image and database image, since the intensity of each pixel in distance image represents the distance from that pixel to the nearest edge pixel. For temporal scale-absolute retrieval, a new coding scheme referred to as Motion Retrieval Code is proposed. This code is designed to represent object motions in the human visual sense so that the retrieval performance can be improved. The proposed coding scheme can also achieve a fast matching, since the similarity between two motion vectors can be computed by simple bit operations. The efficiencies of the proposed methods are shown by experimental results.

키워드

참고문헌

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