Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by Xiao-lin Zhou
Total Records ( 4 ) for Xiao-lin Zhou
  Yu-Chun Wen , Fa-Xin Yu , Xiao-Lin Zhou and Zhe-Ming Lu
  This study presents a novel fire detection method based on vector quantization. Before online fire detection, we generate a fire codebook and a non-fire codebook by the LBG algorithm based on the training set that are selected from 10 video clips under different scenes and conditions. For encoding convenience, we merged the two codebooks into one codebook and sorted the codewords in the ascending order of their mean values for the future Equal-average Equal-variance Equal-norm Nearest Neighbor Search (EEENNS) based fast encoding process. In the online fire detection process, the video to be detected was first segmented into successive frames and we performed the VQ (Vector Quantization) encoding process to find fire-colored frames and recorded the grade of each fire-colored area. Then, the moving pixel detection process was performed on each fire-colored frame to find candidate fire frames. Finally, we verified whether a fire occurs or not and graded the fire by analyzing the change in the number of blocks belonging to each grade between consecutive frames. Experimental results demonstrated the effectiveness of the proposed scheme and a 93.3% detection rate was obtained with 25 test video clips.
  Xiao-Lin Zhou , Fa-Xin Yu , Yu-Chun Wen , Zhe- Ming Lu and Guang-Hua Song
  This study proposed a method for early fire detection in video based on flame contours. The whole fire detection process includes three parts, i.e., candidate fire frame selection, flame region selection and flame contour-based fire decision. In the first step, the suspicious frames are detected and the unlikely frames are removed based on frame selection rules. The second step detects the flame pixels in the candidate fire frames by flame region selection rules. In the last step, four operations (i.e., dilation, erosion, mini region erasing and Canny edge detection) are performed on all flame regions to obtain the exact flame contours and then fire decision rules based on three characteristics (i.e., area, perimeter and roundness of flame contours) are employed to determine whether a fire occurs in the video or not. The proposed approach was tested with several video clips in different environments and the experimental results demonstrated its effectiveness.
  Hui Li , Fa-Xin Yu , Xiao-lin Zhou and Hao Luo
  In delay tolerant mobile networks, there are always no end-to-end paths due to sparse nodes and their irregular movement, so the forwarding of messages from source nodes to the destinations is a crucial task, which results in low probability of successful messages delivery and buffer occupancy for a long time. Routing in these networks is affected by some metrics, but the number of new connections especially is the crucial factor in delivering messages. Under this detection, we proposed every connection routing, which pay more attention to new connections between nodes but not the older ones. Further together with countdown timer and a fast buffer-released mechanism, every connection routing, are influenced by nodes’ speed, communication range and number, expiration time and simulation area. Buffer-release-enhanced weighted every connection routing may only increase processing time by the introducing of messages releasing time, but the benefit is lighter loaded buffers and higher efficiency of networks. The performance of buffer-release-enhanced weighted every connection routing is able to guarantees the validity of message delivery and improve the efficiency of the networks.
  Xiao-Lin Zhou , Fa-Xin Yu , Yu-Chun Wen and Zhe-Ming Lu
  With the rapid development of the Internet and extraordinary increase of bandwidth requirement, fiber based networks emerge and become more and more popular. The EPON (Ethernet Passive Optical Network) technology, which combines the mature Ethernet technology and high-bandwidth PON technology, is an ideal access method to achieve fiber based network service and appears to be the most widely-used access network. Thus, information reliability is becoming more and more important, making the protection of fiber based networks more and more necessary and crucial. Nowadays most EPONs are protected against failures by adopting redundant network equipments. This study proposes a novel protection method for EPON, which is more reliable and safer than existing schemes. This protection architecture scheme is able to provide protection for EPON and point out the exact failure reason for further physical recovery and repairing by the Network Management (NM) Server. Actual operations show that the proposed scheme can provide protection for at least three types of failures, i.e., the ONU link failure, the OLT link failure and the OLT failure.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility