Learning Patterns of Activity Using Real-Time Tracking
IEEE Transactions on Pattern Analysis and Machine Intelligence
Robust Video Transmission over Binary Symmetric Channels with Packet Erasures
DCC '02 Proceedings of the Data Compression Conference
An object-based video coding framework for video sequences obtained from static cameras
Proceedings of the 13th annual ACM international conference on Multimedia
Journal on Image and Video Processing
Robust transmission of H.264/AVC streams using adaptive group slicing and unequal error protection
EURASIP Journal on Applied Signal Processing
Bit allocation for joint source/channel coding of scalable video
IEEE Transactions on Image Processing
Joint source-channel coding for motion-compensated DCT-based SNR scalable video
IEEE Transactions on Image Processing
Error-resilient image and video transmission over the Internet using unequal error protection
IEEE Transactions on Image Processing
Optimal erasure protection strategy for scalably compressed data with tree-structured dependencies
IEEE Transactions on Image Processing
Product code optimization for determinate state LDPC decoding in robust image transmission
IEEE Transactions on Image Processing
Three-dimensional subband coding with motion compensation
IEEE Transactions on Image Processing
Channel-adaptive resource allocation for scalable video transmission over 3G wireless network
IEEE Transactions on Circuits and Systems for Video Technology
State-of-the-Art and Trends in Scalable Video Compression With Wavelet-Based Approaches
IEEE Transactions on Circuits and Systems for Video Technology
Proceedings of the international conference on Multimedia information retrieval
Distributed tracking in a large-scale network of smart cameras
Proceedings of the Fourth ACM/IEEE International Conference on Distributed Smart Cameras
Subjective evaluation of scalable video coding for content distribution
Proceedings of the international conference on Multimedia
Video streaming over P2P networks: Challenges and opportunities
Image Communication
A game theoretic approach to minimum-delay scalable video transmission over P2P
Image Communication
Hi-index | 0.00 |
State-of-the-art coders have been optimised over years according to the needs of the broadcasting industry. There are however key applications of coding technology whose challenges and requirements substantially differ from broadcasting. One of these key applications is surveillance. In this paper an efficient approach for surveillance centric joint source and channel coding is proposed. Contrasting conventional coders, the proposed system has been developed according to the requirements of surveillance application scenarios. It aims at achieving bit-rate optimisation and adaptation of surveillance videos for storing and transmission purposes. In the proposed approach the encoder communicates with a video content analysis (VCA) module that detects events of interests in video captured by CCTV. Bit-rate optimisation and adaptation is achieved by exploiting the scalability properties of the employed codec. Temporal segments containing events relevant to surveillance application are encoded using high spatio-temporal resolution and quality while the portions irrelevant from the surveillance standpoint are encoded at low spatio-temporal resolution and/or quality. Furthermore, the approach jointly optimises the bit allocation between the wavelet-based scalable video coder and forward error correction codes. The forward error correction code is based on the product code constituting of LDPC codes and turbo codes. Turbo codes show good performance at high error rates region but LDPC outperforms turbo codes at low error rates. Therefore, the concatenation of LDPC and TC enhances the performance at both low and high signal-to-noise (SNR) ratios. The proposed approach minimises the distortion of reconstructed video, subject to constraint on the overall transmission bit-rate budget. Experimental results clearly demonstrate the efficiency and suitability of the proposed approach in surveillance applications.