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This article proposes a new approach to jointly rectify multi-distorted text image planes using a single image. Without extracting text lines or analyzing the text layout, the algorithm build a Multi-Distortion Dewarping (MDD) model based on modified text transform invariant low-rank textures. Harnessing the fact that two-intersection text plane share a same vanishing point, MDD algorithm greatly...
A three-DOF steel frame model was built up by Matlab, to simulate damage and calculate its vibration response. Finally, amplitude jumps are found in the processed signals. the results show that damage detection on acceleration signal by using Wavelet Transform method is superior to on displacement and speed signal, the function of judging whether there are damages or confirming the moment the structural...
Recently, the evaluation on quality of the air interface in a wireless network has shifted from emphasis on QoS (quality of service) only to incorporation of QoE (quality of experience). However, it seems that QoE metrics have not been related to the surroundings of the served users so far, which may have a great influence on users' expected QoE. For instance, with a high level of QoS, a user's expectation...
In this paper, a new Krein space approach to robust filtering for linear systems with multiple uncertainties is developed. The multiple uncertainties satisfy the energy-type constraints, entering into both state and measurement equations. The proposed approach is used to tackle the sub-optimization problem arising from a sum quadratic constraint (SQC) of system uncertainties. To this end, a novel...
Regarding the problem of the Autonomous Underwater Vehicle (AUV) departing from the mother ship and starting up, this paper proposed a divided difference filter (DDF) basing on the Stirling interpolation formula. When AUV separated from the mother ship and restarted, the coarse alignment was not ideal. Its level misalignment error precision was high, but its heading misalignment error precision was...
The restoration of the photographically defocus blurred image depends primarily on the knowledge about the degradation process. There have been various methods to model the defocus blur. The effectiveness of the method for deriving the defocus blur model parameters determines the image restoration quality to some extent. In this work, assuming that the PSF can be modeled by a function with a single...
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