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In this paper, we proposed a novel coding scheme is proposed using wavelet-based CS framework for nature image. First, two-dimension discrete wavelet transform (DWT) is applied to a nature image for sparse representation. after multi-scale DWT, the low-frequency sub-band and high frequency sub-bands are re-sampled separately. According to the statistical dependences among DWT coefficients, we allocate...
To achieve a composite integration of automation system on underground ore transport information and enhance the production efficiency and the management level of the mine, this article uses image processing and pattern recognition technology to establish the information platform of the relationships of crew, vehicles, mountain Pulse number and output.
XML (Extensible Markup Language) describes the particular structural relationship between nodes, XML encoding scheme is to assign the unique number to each node, and realizes fast operation through the numbered structure reflecting the structure of nodes. With the expanding application fields of XML, the characteristics of each area should be reflected in the encoding process of XML. This paper analyzes...
Most mobile devices are currently suffering from the lack of computational power and energy-consumption constraints, there is significant interest and research in reducing the computational complexity for fast video coding. This paper proposes a statistical model to predict the zero-quantized DCT (ZQDCT) coefficients for 3-D DCT video coding and thus to speech up the encoding process. First, each...
Digital image/video coding standards such as JPEG, H.264 are becoming more and more important for multimedia applications. Due to the huge amount of computations, there are significant efforts to speed up the encoding process. This paper proposes a Laplacian based statistical model to predict zero-quantized DCT coefficients in JPEG and to reduce the computations of encoding process. Compared with...
The discrete cosine transform (DCT) is widely used in image/video coding standards. However, since most DCT coefficients will be quantized to zeros, a large number of redundant computations are introduced. This paper presents an early detection algorithm to predict zero-quantized DCT coefficients for fast JPEG encoding. Based on the theoretical analysis for 2-D DCT and quantization in JPEG standard,...
The discrete cosine transform (DCT) plays a key role in image/video coding due to its powerful energy concentration ability. On the other hand, since many DCT coefficients will be quantized to zeros, a huge number of redundant computations are introduced. This paper proposes an analytical model to predict the zero-quantized DCT (ZQDCT) coefficients for fast 3- D DCT based video encoding. The theoretical...
In image based rendering (IBR), a 3D scene is recorded through a set of photos, and a novel view is rendered by assembling data from the photo set. Compression is essential to reduce the huge data amount of IBR. We examine three categories of IBR compression algorithms: the block coder, the reference coder and the high dimensional transform (wavelet) coder. It is observed that the block coder consumes...
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