USING CONTOUR INFORMATION FOR BODY ORIENTATION ESTIMATION IN THE IMAGE

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SEBTI A.; HASSANPOUR H.

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Journal: NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, B- MUHANDISI -I KAMPYUTAR Year:2017 | Volume:14 | Issue:4 Page(s): 322-332

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Title

USING CONTOUR INFORMATION FOR BODY ORIENTATION ESTIMATION IN THE IMAGE

Author(s)

SEBTI A. | HASSANPOUR H. | Issue Writer Certificate

Keywords

CONTOUR INFORMATIONQ2

HIERARCHICAL CLUSTERINGQ1

SURVEILLANCE SYSTEMSQ2

Abstract

Pose and orientation of a person relative to the camera are the important and useful information in many applications, including SURVEILLANCE SYSTEMS. This information can be used in the behavior analysis of the person. Low quality of the recorded surveillance images, noisy data and cluttered backgrounds are some of the difficulties in this task. In the existing methods, histogram of orientation gradient (HOG) is used to estimate the orientation. The local properties of HOG is a weakness for orientation estimation. The edge surrounding the object, namely contour, is a useful information for orientation estimation. In this paper we present a general form of a contour. This hyper contour helps us to find the best contour which is matched to image of the person in a hierarchical fashion. These contours generated from a human 3D model. The matched contour as a high-level feature is combined with the low-level feature such as HOG, and considered as the final feature. The proposed feature is a linear combination of several types of contours with respect to different regions of the body. To show the impact of the proposed feature on orientation estimation, a support vector machine is trained on a hybrid feature space and then is evaluated on VIPeR dataset. The experimental results show that the accuracy of the orientation estimation is improved about 4% by using the extended feature.

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APA: Copy

SEBTI, A., & HASSANPOUR, H.. (2017). USING CONTOUR INFORMATION FOR BODY ORIENTATION ESTIMATION IN THE IMAGE. NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, B- MUHANDISI -I KAMPYUTAR, 14(4), 322-332. SID. https://sid.ir/paper/228504/en

Vancouver: Copy

SEBTI A., HASSANPOUR H.. USING CONTOUR INFORMATION FOR BODY ORIENTATION ESTIMATION IN THE IMAGE. NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, B- MUHANDISI -I KAMPYUTAR[Internet]. 2017;14(4):322-332. Available from: https://sid.ir/paper/228504/en

IEEE: Copy

A. SEBTI, and H. HASSANPOUR, “USING CONTOUR INFORMATION FOR BODY ORIENTATION ESTIMATION IN THE IMAGE,” NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, B- MUHANDISI -I KAMPYUTAR, vol. 14, no. 4, pp. 322–332, 2017, [Online]. Available: https://sid.ir/paper/228504/en

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