視訊資料庫中物件時空關係推理與相似性查詢之研究
Other Title
A study on spatio-temporal reasoning and similarity retrieval in
video databases
video databases
Date Issued
2003
Date
2003
Author(s)
DOI
912213E002092
Abstract
We have proposed a new spatio-temporal
knowledge structure 3D C-string to
represent symbolic videos accompanying
with the string generation and video
reconstruction algorithms. In this paper,
we extend the idea behind the similarity
retrieval of images in 2D C + -string to 3D
C-string. Our extended approach consists
of two phases. First, we infer the spatial
relation sequence and temporal relations
for each pair of objects in a video. Second,
we use the inferred relations to define
various types of similarity measures and
propose the similarity retrieval algorithm.
By providing various types of similarity
between videos, our proposed similarity
retrieval algorithm has discrimination
power about different criteria. Finally,
some experiments are performed to show
the efficiency of the proposed approach.
Subjects
Video data
Video database
Spatio-temporal relationship
Knowledge
structure
structure
2D string
3D string
Publisher
臺北市：國立臺灣大學資訊管理學系暨研究所
Type
other
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