Download Computer science and applications : proceedings of the 2014 by Ally Hu PDF

By Ally Hu

The 2014 Asia-Pacific convention on laptop technology and purposes was once held in Shanghai, December 27-28, 2014. those CSAC-2014 proceedings include one hundred and five chosen papers, which concentration not just at the examine of technology and know-how of laptop sciences, but additionally at the learn of purposes, aiming at a brief and fast impression on way of life within the close to future.

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The parent link points to the parent node in the binary search tree structure. (b) Node for a singly linked vine, which does not have the previous link. Figure 4 shows an example of the generalized sorted dictionary. The vine could be doubly linked or singly linked. indd 25 3/26/15 9:42 AM Table 2. Time complexities of the operations of the generalized sorted dictionary. Operation Time complexity inserting deleting searching getting the first deleting the first O(logn) O(logn) O(logn) O(1) O(1) left link of P to node C, and redirect the parent link of C to node P.

Since the nodes H’, P, and C are reachable from node H, maintaining the links only costs constant time. Therefore, the time complexity of the operation of deleting the first is O(1). We use the earlier data structure to implement the generic Priority Queue. The data structure Priority Queue contains elements with associated priorities and supports the operations of inserting an element by priority and removing the element with the highest priority. Priority Queue is usually implemented by the data structure Binary Heap, providing O(logn) time to the two main operations inserting and deleting.

Indd 30 08/04/15 12:56 AM 3 Proposed algorithm Get modified Si ' by replacing σ i with σ i ' . 1 Embedding process We can get a low-frequency subband and several high-frequency subbands when perform Discrete Contourlet Transform to a host image. Highfrequency subbands represent the edge and texture information of the image and low-frequency subband contains most of the energy. Watermark embedded into high-frequency subbands could get a fine transparency but is easy being removed. On the opposite, watermark embedded into low-frequency subbands could get a fine robustness but is easy leading to visible distortion.

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