Publications

Cucchiara, R, Grana, C, Neri, G, Piccardi, M & Prati, A 2002, 'The Sakbot System for Moving Object Detection and Tracking' in Remagnino, P, Jones, G, Paragios, N & Regazzoni, C (eds), Video-Based Surveillance Systems, Springer US, New York, pp. 145-157.
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Abry, P, Baraniuk, R, Flandrin, P, Riedi, R & Veitch, D 2002, 'Multiscale nature of network traffic', IEEE Signal Processing Magazine, vol. 19, no. 3, pp. 28-46.
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Deane, J, Liu, R, Chan, J, Percival, T & Economou, D 2002, 'The centie project', Telecommunications Journal of Australia, vol. 52, no. 2.
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CSIRO has established the Centre for Networking Technologies for the Information Economy (CeNTIE) to build an advanced network for research into new communications technologies. The aims of this Centre are to: enable next generation business systems which match advanced networks to advanced applications, stimulate a partnership with industry, universities and the research community, showcase Australian technologies, applications and services, provide foundations to build a sustainable, high performance research and engineering network.

Erramilli, A, Roughan, M, Veitch, D & Willinger, W 2002, 'Self-similar traffic and network dynamics', Proceedings of the IEEE, vol. 90, no. 5, pp. 800-819.
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Lin, Q, Zhang, L & Jia, W 2002, 'Omnidirectional Grey-Time Waveform System and Its Application in Ultrasound Echocardiography', Journal of Electronic Measurement and Instrument, vol. 16, no. 2, pp. 70-75.

Pasztor, A & Veitch, D 2002, 'On the scope of end-to-end probing methods', IEEE Communications Letters, vol. 6, no. 11, pp. 509-511.
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Pasztor, A & Veitch, D 2002, 'The packet size dependence of packet pair like methods', IEEE 2002 Tenth IEEE International Workshop on Quality of Service (Cat. No.02EX564).
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Pásztor, A & Veitch, D 2002, 'On the Scope of Active Probing Methods', IEEE INFOCOM, pp. 1-1.

Roughan, M, Erramilli, A & Veitch, D 2002, 'Performance estimation for short-lived TCP sources', IEEE International Workshop on Computer-Aided Modeling, Analysis and Design of Communication Links and Networks (9th: 2002: New York, USA).

Yunxin Li & Xiaojing Huang 2002, 'The simulation of independent Rayleigh faders', IEEE Transactions on Communications, vol. 50, no. 9, pp. 1503-1514.
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Abolhasan, M, Wysocki, T, Dutkiewicz, E, IEEE & IEEE 1970, 'Scalable routing strategy for dynamic zones-based MANETS', GLOBECOM'02: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-3, CONFERENCE RECORDS, GLOBECOM '02, IEEE, Taipei, Taiwan, pp. 173-177.
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This paper presents a new routing strategy for mobile ad hoc networks, called dynamic zone-based topology routing protocol (DZTR). We introduce new strategies to maintain up-to-date intrazone and interzone topology information at each node. We also propose a GPS-based location tracking mechanism, which reduces route discovery area and the number of nodes queried to find the required destination. Our routing strategy has been designed to work with a dynamic zone, which contains a set of member nodes. Every node outside a zone is called a single-state node. We perform theoretical performance analysis, which shows that our network topology creation process has significantly fewer overheads than flooding approaches.

Cavalli, F, Cucchiara, R, Piccardi, M & Prati, A 1970, 'Performance analysis of MPEG-4 decoder and encoder', International Symposium on VIPromCom Video/Image Processing and Multimedia Communications, 4th EURASIP - IEEE Region 8 International Symposium on Video/Image Processing and Multimedia Communications, Croatian Soc. Electron. Marine, Zadar, Croatia, pp. 227-231.
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Cucchiara, R, Prati, A & Piccardi, M 1970, 'Data-type dependent cache prefetching for MPEG applications', Conference Proceedings of the IEEE International Performance, Computing, and Communications Conference (Cat. No.02CH37326), 2002 IEEE International Performance, Computing, and Communications Conference, IEEE, Phoenix, USA, pp. 115-122.
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Data cache prefetching is an effective technique So improve performance of cache memories, whenever the pre fetching algorithm is able to correctly predict useful data to be prefetched. To this aim, adequate information on the program's data locality must be used by the prefetching algorithm. In particular, multimedia applications are characterized by a substantial amount of image and video processing, which exhibits spatial locality in both the dimensions of the 2D data structures used for images and frames. However, in multimedia programs many memory references are made also to non-image data, characterized by standard spatial locality. In this work, we explore the adoption of different prefetching techniques in dependence of the data type (i. e., image and non-image), thus making it possible to tune the prefetching algorithms to the different forms of locality, and achieving overall performance optimization. In order to prevent interference between the two different data types, a split cache with two separated caches for image and non-image data is also evaluated as an alternative So a standard unified cache. Results on a multimedia workload (MPEG-2 and MPEG-4 decoders) show that standard prefetching techniques such as One-block-lookahead and the Stride Prediction Table are effective for standard data, while novel 2D prefetching techniques perform best on image data. In addition, at a parity of size, unified caches offer in general better performance that split caches, thank to the more flexible allocation of a unified cache space.

Duan, L-Y, Xu, M, Yu, X-D & Tian, Q 1970, 'A unified framework for semantic shot classification in sports videos', Proceedings of the tenth ACM international conference on Multimedia, MM02: ACM Multimedia 2002, ACM, pp. 419-420.
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In this demonstration, we present a unified framework for semantic shot classification in sports videos. Unlike previous approaches, which focus on clustering by aggregating shots with similar low-level features, the proposed scheme makes use of domain knowledge of specific sport to perform a top-down video shot classification, including identification of video shots classes for each sport, and supervised learning and classification of given sports video with low-level and middle-level features extracted from the sports video. It's observed that for each sport we can predefine a small number of semantic shot classes, 5-10, which cover 90 to 95 % of sports broadcasting video. With supervised learning method, we can map the low-level features to middle-level semantic video shot attributes such as dominant object motion (a player), camera motion patterns, and court shape, etc. On the basis of the appropriate fusion of those middle-level shot attributes, we classify video shots into the predefined video shot classes, each of which has a clear semantic meaning. The proposed method has been tested over 3 types of sports videos: tennis, basketball, and soccer. Good classification results ranging from 80-95% have been achieved. The proposed framework provides a generic solution for sports video semantic shot classification, which can be adapted to a new sport type easily. With correctly classified sports video shots further structural and temporal analysis will be greatly facilitated.

Gunes, H, Piccardi, M & Jan, T 1970, 'Automated Classification of Female Facial Beauty Using Learning Algorithms', Proceedings of Image and Vision Computing New Zealand 2002, Image and Vision Computing Conference, 2002 Image and Vision Computing New Zealand, Auckland, New Zealand, pp. 169-173.

He, S, Hintz, TB & Wu, Q 1970, 'An Overview of Object Recognition on the Spiral Architecture', Proceedings of International Conference on Imaging Science, Systems, and Technology (CISST2002), International Conference Imaging Science, Systems and Technology, CSREA, Las Vegas, pp. 14-20.

He, S, Hintz, TB & Wu, Q 1970, 'Neural Network Based Image Edge Detection Within Spiral Architecture', Proceedings of the International Conference on Parallel and Distributed Processing Techniques and Applications, International Conference on Parallel and Distributed Processing Techniques and Applications, CSREA Press, Las Vegas, USA, pp. 21-27.

Hohn, N, Veitch, D & Abry, P 1970, 'Does fractal scaling at the IP level depend on TCP flow arrival processes?', Proceedings of the second ACM SIGCOMM Workshop on Internet measurment - IMW '02, the second ACM SIGCOMM Workshop, ACM Press, ACM, pp. 63-68.
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Huang, XJ & Li, YX 1970, 'Multicode interleaved DS-CDMA: A new high-speed multiuser communications system over frequency-selective fading channels', 6TH WORLD MULTICONFERENCE ON SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL XV, PROCEEDINGS, 6th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI 2002)/8th International Conference on Information Systems Analysis and Synthesis (ISAS 2002), INT INST INFORMATICS & SYSTEMICS, ORLANDO, FL, pp. 504-509.

Huang, XJ & Li, YX 1970, 'The PAM decomposition of CPM signal with integer modulation index', 6TH WORLD MULTICONFERENCE ON SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL XV, PROCEEDINGS, 6th World Multi-Conference on Systemics, Cybernetics and Informatics (SCI 2002)/8th International Conference on Information Systems Analysis and Synthesis (ISAS 2002), INT INST INFORMATICS & SYSTEMICS, ORLANDO, FL, pp. 510-515.

Jan, T, Krishna, A, Piccardi, M & Hintz, TB 1970, 'Effective Surveillance Image Analysis Using Combination of Linear Regression Model and Modified Probabilistic Neural Networks', Proceedings of Image and Vision Computing New Zealand 2002, Image and Vision Computing Conference, 2002 Image and Vision Computing New Zealand, Auckland, New Zealand, pp. 19-22.

Jan, T, Piccardi, M & Hintz, TB 1970, 'Detection of Suspicious Pedestrian Behaviour Using Modified Probabilistic Neural Networks', Proceedings of Image and Vision Computing New Zealand 2002, Image and Vision Computing Conference, 2002 Image and Vision Computing New Zealand, Auckland, New Zealand, pp. 237-241.

Kendall, R & Braun, RM 1970, 'Digital Communication Filter Design by Stochastic Optimization', WARS02 Workshop on the Applications of Radio Science, NCRS, Leura, NSW Australia.

Lin, Q, Jia, W & Yang, X 1970, 'A Method for Mining Data of Sequential Images--Rebuilding of Gray (Position)~time Function on Arbitrary Direction Lines', Proceedings of 2002 International Conference on Imaging Science, Systems, and Technology (CISST02), International Conference Imaging Science, Systems and Technology, CSREA Press, Las Vegas, Nevada, USA, pp. 3-6.

Mahadevan, V, Braun, RM & Kadi, A 1970, 'A Perception of Next Generation E-Learning in Australia', Proceedings of E-Learn 2002, E-Learn 2002, Association for the Advancement of Computing in Education, Montreal, Canada, pp. 1835-1838.

Pásztor, A & Veitch, D 1970, 'Active probing using packet quartets', Proceedings of the second ACM SIGCOMM Workshop on Internet measurment workshop - IMW '02, the second ACM SIGCOMM Workshop, ACM Press, ACM, pp. 293-305.
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A significant proportion of link bandwidth measurement methods are based on IP's ability to control the number of hops a packet can traverse along a route via the time-to-live (TTL) field of the IP header. A new delay variation based path model is introduced and used to analyse the fundamental networking effects underlying these methods. Insight from the model allows new link estimation methods to be derived and analysed. A new method family based on packet quartets: a combination of two packet pairs each comprising a probe following a pacesetter packet, where the TTL of the pacesetter is limited and the end-to-end delay variation of the probes is measured, is introduced. The methods provide 'pathchar-like' rate estimates over multiple links without relying on the delivery of ICMP messages, with reduced invasiveness and other advantages. The methods are demonstrated using simulations, and measurements on two different network routes are used for illustration and comparison against available tools (pathchar and clink). A comprehensive analysis of practical issues affecting the accuracy of the methods, such as link layer headers, is provided. Particular attention is paid to the consequences of 'invisible' hops: nodes where the TTL is not decreased.

Pásztor, A & Veitch, D 1970, 'PC based precision timing without GPS', ACM SIGMETRICS Performance Evaluation Review, Association for Computing Machinery (ACM), ACM, pp. 1-10.
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A highly accurate monitoring solution for active network measurement is provided without the need for GPS, based on an alternative software clock for PC's running Unix. With respect to clock rate, it's performance exceeds common GPS and NTP synchronized software clock accuracy. It is based on the TSC register counting CPU cycles and offers a resolution of around 1ns, a rate stability of 0.1PPM equal to that of the underlying hardware, and a processing overhead well under 1µs per timestamp. It is scalable and can be run in parallel with the usual clock. It is argued that accurate rate, and not synchronised offset, is the key requirement of a clock for network measurement. The clock requires an accurate estimation of the CPU cycle period. Two calibration methods which do not require a reference clock at the calibration point are given. To the TSC clock we add timestamping optimisations to create two high accuracy monitors, one based on Linux and the other on Real-Time Linux. The TSC-RT-Linux monitor has offset fluctuations of the order of 1µs. The clock is ideally suited for high precision active measurement.

Pásztor, A & Veitch, D 1970, 'The packet size dependence of packet pair like methods', Quality of Service, 2002. Tenth IEEE International Workshop on, IEEE, pp. 204-213.

Qiang Wu, Xiangjian He & Hintz, T 1970, 'Distributed image processing on spiral architecture', Fifth International Conference on Algorithms and Architectures for Parallel Processing, 2002. Proceedings., Fifth International Conference on Algorithms and Architectures for Parallel Processing, IEEE Comput. Soc, Beijing, China, pp. 84-91.
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© 2002 IEEE. Improving computation efficiency is a key issue in image processing, especially in edge detection, which is very computationally intensive. With the development of real-time applications of image processing, fast processing response is becoming more critical. In this paper, a technique for distributed image processing on a spiral architecture is proposed, which provides a platform for speeding up image processing based on clusters.

Wu, Q, He, S & Hintz, TB 1970, 'Scaling Factor Computation in Image Partitioning on Spiral Architecture', Proc. International Conference on Parallel and Distributed Processing Techniques and Applications, International Conference on Parallel and Distributed Processing Techniques and Applications, CSREA Press, Las Vegas, US, pp. 28-33.

Xiaojing Huang & Yunxin Li 1970, 'Performances of impulse train modulated ultra-wideband systems', 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), IEEE International Conference on Communications, IEEE, NEW YORK, NY, pp. 758-762.
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Xiaojing Huang & Yunxin Li 1970, 'Polyphase scalable complete complementary sets of sequences', The 8th International Conference on Communication Systems, 2002. ICCS 2002., ICCS 2002 - 8th IEEE International Conference on Communications Systems, IEEE, SINGAPORE, SINGAPORE, pp. 810-814.
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Xiaojing Huang & Yunxin Li 1970, 'Scalable complete complementary sets of sequences', Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE, GLOBECOM 2002 - IEEE Global Communications Conference, IEEE, TAIPEI, TAIWAN, pp. 1056-1060.
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Zhang, J, Kennedy, RA & Abhayapala, TD 1970, 'Analytical Description of Signal Characteristics and Interference For Time Hopped UWB System', COMMUNICATIONS THEORY WORKSHOP, Citeseer, pp. 114-114.