A hybrid bags-of-feature model for sports scene classification = 하이브리드 특징 벡터 사전 모델에 기반한 스포츠 영상 분류

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 511
  • Download : 0
In this thesis, we propose an effective framework for sports scene classification by using a Hybrid Bags-of-Feature model. The Bag-of-Feature (BoF) model is a methodology which represents an image based on the histogram of visual codewords. With its successful performance, the BoF model has been widely exploited in computer vision such as scene classification and object recognition. Unlike traditional BoF models which resort to a single feature descriptor such as SIFT and thus exploit a single codebook, the proposed Hybrid BoF model employs two different types of codebooks; SIFT feature and modified LBP feature. The LBP descriptor is capable of capturing micro patterns of the image, hence it is suitable for texture classification. In contrast, Gradient based feature descriptors such as SIFT have been proven to be effective for object recognition. By taking advantage of properties of both SIFT and LBP, the proposed method improves the classification accuracy for sports scene. To this end, we design the hybrid type of BoF framework which encodes foreground objects (i.e., players) and background separately. More specifically, foreground objects (or regions containing distinct silhouettes) are encoded based on the SIFT descriptor and the remaining regions such as sky, lawn or floor of the gymnasium are encoded based on the LBP descriptor. To build a criterion for descriptor selection, we introduce a saliency pyramid based on the Phase Fourier Transform (PFT). The proposed method has been extensively tested, and experimental results show that the proposed framework is effective for sports scene classification compared to other various state-of-the-art methods.
Advisors
Kim, Chang-Ickresearcher김창익
Description
한국과학기술원 : 전기및전자공학과,
Publisher
한국과학기술원
Issue Date
2013
Identifier
513272/325007  / 020113213
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학과, 2013.2, [ vi, 50 p. ]

Keywords

scene classification; sports scene; bag-of-feature; hybrid bags-of-feature; 영상 분류; 스포츠 영상; 시각 사전; 하이브리드 시각 사전; 관심영역 피라미드; saliency pyramid

URI
http://hdl.handle.net/10203/181033
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=513272&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0