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In order to choose the most suitable optical flow algorithm for guidance, navigation and control of flying vehicles with high speed, the paper focuses mainly on the computational accuracy and efficiency analysis of five optical flow algorithms for large displacement. The five optical low algorithms are Horn Schunck (HS), Lucas Kanade (LK), Pyramid Lucas Kanade (PLK), Scale Invariant Feature Transform...
Most existing community detection methods ignored the dynamic nature, a key property of social networks and these methods often lead to unreasonable divisions when faced with dynamic environments. Although there have been several dynamic community detection algorithms, low accuracy and low performing are still two challenging problems to be solved. In order to solve above problems, we proposed a new...
Advantages and disadvantages of two common algorithms frequently used in the moving target detection: background subtraction method and frame difference method are analyzed and compared in this paper. Then based on the background subtraction method, a moving target detection algorithm is proposed. The background image used to process the next frame image is generated through superposition of the current...
Immune algorithm is a rising algorithm which simulates the organism immune system by computer. One of the immune algorithms named clonal selection algorithm is widely used due to its adaptability, implicit parallelism and diversity. A fitness function is constructed in this paper by using protein folding restrictions, such as amino acids' hydrophobicity rule, protein's secondary structure folding...
One-dimensional cutting-stock is one of the classic NP-hard problems in combinatorial optimization. It is widely applied in engineering technology and industrial production. In this paper, an improved ant colony optimization is proposed based on the optimized one-dimensional cutting-stock model. Aiming at the specific characteristics of the problem, a series of improvement strategies are proposed,...
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