In this paper, a new multiple description image coding scheme using directional lifting transform is proposed. The basic idea is to divide an image into two descriptions with quincunx segmentation. The traditional spatial domain multiple description image coding techniques usually result in the very low coding efficiency. To tackle this problem, we propose a directional lifting technique to ext...

Scalable multiple description video coding provides adaptability to bandwidth variations and receiving device characteristics and at the same time improves error robustness in multimedia networks. One promising application includes error resilient scalable video conferencing in a virtual collaboration system. In this paper, a scalable multiple description video coding (MDC) is proposed for ster...

Packet delay jitter and loss due to network congestion pose significant challenges for designing and deploying delay sensitive multimedia applications over the best effort packet switched networks such as the Internet. Recent studies indicate that using Multiple Description Coding (MDC) in conjunction with path or server diversity can mitigate these effects. However, the proposed MDC coding and...

In this paper, an H.264/AVC-based multiple description video coding scheme is proposed. It utilizes the advanced video coding tools and features provided in H.264/ AVC to introduce redundancy into descriptions. Two independently decodable descriptions are generated, each consisting of two slice groups. One of them, called main slice group (MSG), is encoded normally as main information. The othe...

Multiple description coding (MDC) is a source coding technique that exploits path diversity to increase the robustness of transmitting a compressed signal over error-prone channels. However, the application of MDC to video coding is still problematic because a prediction mismatch problem, called drift, may occur at the decoder when one description is lost. In this paper, we propose a drift free...

In this paper, a watermarking algorithm that uses the wavelet transform with Multiple Description Coding (MDC) and Quantization Index Modulation (QIM) concepts is introduced. Also, the paper investigates the role of Contourlet Transform (CT) versus Wavelet Transform (WT) in providing robust image watermarking. Two measures are utilized in the comparison between the waveletbased and the contourl...

Multiple description coding of images can be implemented as preand post-processing by means of simple splitting of the pixels into subimages. A controllable amount of extra redundancy is inserted in order to improve estimation quality in case of one descriptor reception. This redundancy is usually inserted in a uniform spatial fashion. In this papers we propose a novel preand post-processing me...

This paper proposes a video communication scheme combing the multiple description coding (MDC) using scalar quantizers with the matching pursuit (MP) to transmit the video over the Internet. The parameters obtained after MP, called atoms, are encoded into two balanced descriptions, which are transmitted over two separate channels. Simulation results show that our proposed method surpasses MP si...

This thesis treats the problem of source coding in situations where the encoded data is subject to errors. The typical scenario is a communication system, where source data such as speech or images should be transmitted from one point to another. A problem is that most communication systems introduce some sort of error in the transmission. A wireless communication link is prone to introduce ind...