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The 23rd International Technical Conference on Circuits/Systems, Computers and Communications

Session A6  Image Processing & Video Technology 6
Time: 9:00 - 10:30 Wednesday, July 9, 2008
Location: 10F International Conference Room
Chairs: Sung-Jea Ko (Korea University, Republic of Korea), Hideaki Yanagisawa (Tokuyama College of Tech., Japan)

A6-1 (Time: 9:00 - 9:18)
TitleMapping Functions between Image Features and KANSEI and its Application to KANSEI Based Clothing Fabric Image Retrieval
Author*Shota Sobue (Ritsumeikan University, Japan), Xinyin Huang (Soochow University, China), Yen-Wei Chen (Ritsumeikan University, Japan)
Pagepp. 705 - 708
Keywordimage feature, impression, neural network
AbstractIn this paper, we propose a new technique for clothing fabric image retrieval based on KANSEI (impressions). We first learn the mapping function between the fabric image features and the KANSEI and then the images in the database are projected into the KANSEI space (psychological space). The retrival is done in the psychological space by comparing the querry impression with the projection of the images in database.

A6-2 (Time: 9:18 - 9:36)
TitleFast Object Detection Method for Visual Surveillance
AuthorHyo-Kak Kim, Suryanto , *Dae-Hwan Kim, Dongni Zhang, Sung-Jea Ko (Korea University, Republic of Korea)
Pagepp. 709 - 712
Keywordobject detection, surveillance, background-subtraction
AbstractMost of the algorithms developed for object detection employ a background-subtraction technique which requires heavy computation. In this paper, we present a fast background-subtraction technique which can be readily applied to many existing object detection algorithms. The proposed technique consists of three parts: persistent background-subtraction, background-subtraction with nearby searching, and skipped background-subtraction. Experimental results show that the proposed technique can detect the moving objects effectively without any degradation of reliability.

A6-3 (Time: 9:36 - 9:54)
TitleImproving the Robustness of Lips Sensing with Evolutionary Video Processing
Author*Takuya Akashi, Yuji Wakasa, Kanya Tanaka (Yamaguchi University, Japan), Minoru Fukumi (The University of Tokushima, Japan)
Pagepp. 713 - 716
KeywordGenetic algorithm, Video processing, Human interface
AbstractIn this paper, an effective method is proposed for robust lips sensing. Our objectives are high-speed lips tracking and data acquisition of a talking person in natural scenes. Our approach is based on the Evolutionary Video Processing. This method has a trade-off between accuracy and a processing time. To solve this problem, we proposed automatic Search Domain Control method and implement this method in the Evolutionary Video Processing. The tracking accuracy is improved from 66.3% to 84.9%. The proposed method can recover from occlusion and tracking loss. Comparative experiments are presented to demonstrate the effectiveness and robustness of the proposed method.

A6-4 (Time: 9:54 - 10:12)
TitleHigh Dynamic Range Image Reconstruction using Multiple Images
AuthorJongseong Choi, *Young-seok Han, Moon Gi Kang (Yonsei University, Republic of Korea)
Pagepp. 717 - 720
Keywordimage reconstruction, high dynamic range
AbstractThe dynamic range of image sensors is limited due to the capacitance of photodiode and the nonlinearity of the system response function. In this paper, the high dynamic range image reconstruction algorithm using multiple images is proposed. The proposed algorithm simultaneously enhances dynamic range and estimates the imaging system's response function. The image acquisition process including limited dynamic range is modelled. With the observation model, the linear least squares estimates the response function of the imaging system as well as the single high dynamic range image are obtained.

A6-5 (Time: 10:12 - 10:30)
TitleA Hybrid Technique for De-interlacing Based on Motion Compensation Reliability
Author*Joonyoung Chang, Moon Gi Kang (Institute of TMS Information Technology, Yonsei University, Republic of Korea)
Pagepp. 721 - 724
KeywordDe-interlacing, Motion compensated interpolation, Intra-field interpolation
AbstractAlthough motion compensated interpolation (MCI) improves the vertical resolution of de-interlaced frames effectively, it often introduces serious defects like feathering artifacts. In this paper, we propose an arbitration rule between MCI and intra-field interpolation for de-interlacing to avoid the motion compensation artifacts (MCAs) produced by erroneous MCI. In the proposed de-interlacing method, we check the MCI results by using the proposed MCA detection method and decide whether the MCI results are reliable or not. And then, we use the reliability of MCI results to combine two de-interlacing methods. The proposed arbitration method is more elaborate than conventional methods since we directly detect the artifacts in MCI results and the reliability of MCI results is used as one of the important factors of the proposed arbitration weights. Experimental results show that the proposed method achieves better image quality than the conventional methods in terms of both subjective and objective measures.