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Distributed Video Coding (DVC) is an emerging video coding approach, particularly attractive due to its flexibility to implement low complex encoders. This feature could be very effectively utilized in a number of video sensor based application scenarios. However, DVC is still in the process of development and currently available codec implementations are mainly based on monoscopic implementations...
Source coding by exploiting the temporal and spatial correlations in an input video stream is well established in conventional video coding. However, when distributed video coding (DVC) is concerned, shifting the source coding from the encoder to the decoder made this a more complicated and possibly a sub optimal process. Exploiting the temporal correlations has so far been attempted utilizing the...
Distributed video coding (DVC) has become increasingly popular in recent times among the researchers in video coding due to its attractive and promising features. DVC primarily has a modified complexity balance between the encoder and decoder, in contrast to conventional video codecs. Side information generation, carried out at the decoder, is a major function in the DVC coding algorithm and plays...
Distributed video coding (DVC) is an emerging video coding approach in the new era, particularly attractive due to its flexibility to introduce very simple encoder structures. This feature could be very effectively utilized in the design of low cost video cameras. However, the DVC architecture commonly discussed in research literature has a fundamental drawback of involving a feedback channel between...
Distributed video coding (DVC) is one of the fastest growing coding techniques in the current signal processing world. It has its outstanding low complex encoder which is essential for some applications in the consumer market. Driven by the above motive, in this paper we propose a novel side information refinement technique for Wyner-Ziv video frames in DVC. When a bit plane is decoded, it is used...
In this paper, we present a novel distributed video coding algorithm based on turbo trellis coded modulation (TTCM). As in the conventional turbo based Slepian-Wolf encoder, quantised information is applied to the TTCM encoder and parity bits are generated from both constituent encoders. However, TTCM symbols are not generated at the encoder since they are not sent to the decoder. Parity bits produced...
The research on distributed video coding (DVC) has been increasingly popular in recent times due to its promising features. Primarily it modifies the complexity balance between the encoder and decoder in the traditional video coding architecture. In this paper, we present a novel architecture for the DVC codec involving a pixel interleaver/de-interleaver stage. This modification enables the exploitation...
In this paper, we propose a novel concept for key frame encoding in distributed video codecs (DVC) without using any additional coding scheme. The proposed concept is an extension of Wyner-Ziv coding for key frame coding. Since key frames are used in the prediction purposes, the quality of them is critical in the DVC codecs. Therefore we use a fine quantizer (high quality) to encode these key frames...
Distributed video coding (DVC) is known as an emerging video coding technique, which primarily has a modified complexity balance in the encoder and decoder, in contrast to its traditional competitors. In DVC, we have a very simple low cost encoder which is an ideal feature for applications involving a large number of video capturing points located remotely and a centralized shared decoder. In this...
In this paper, we discuss a novel approach to distributed video coding (DVC) using bitplane based unequal error protection. Distributed video coding (DVC) has recently attracted a vast amount of attention from the video coding community all around the world, since it could prove very well suited for some applications where low-complexity encoders are a must. The primary feature of DVC is its modified...
Distributed video coding (DVC), now has become one of the fastest evolving coding techniques in the current signal processing world. It has its remarkable low complex yet powerful encoder which is essential for some applications in the consumer market. In this paper we propose a novel Wyner-Ziv architecture that splits a frame in to two sub frames and leave one as a key sub frame while encoding the...
Due to the provision of a more natural representation of a scene in the form of left and right eye views, a stereoscopic imaging system provides a more effective method for image/video display. Unfortunately the vast amount of information that needs to be transmitted/stored to represent a stereo image pair/video sequence, has so far hindered its use in commercial applications. However, by properly...
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