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The paper proposed an algorithm which can get over the BP algorithm's shortcomings of slow convergence speed, computation complexity and local minimum by using the UKF to estimate the parameters of WNN. Then it takes the phenomenon of aerodynamic modeling of quasi-steady stall for ATTAS aircraft as applying background and uses the algorithm of BP, EKF and UKF to train the WNN respectively. From the...
3DTV is becoming more and more popular but the 3D sequences are still very few. In this paper, we proposed an efficient 2D to 3D video conversion method based on skeleton line tracking. In our method, for a key frame, the foreground object and the corresponding depth image can be obtained by interactive method. For a non-key frame, we first generate the skeleton lines of the object in the previous...
Rate control plays an important role in video coding and transmission. current initialization of quantization parameter (QP) in H.264 rate control takes the same value for images with different complexity as long as the bit number per pixel is the same which is different from the real-world situation. In this paper, we propose a new R-Q model and QP initializing method to improve the precision of...
H.264 is becoming the worldwide digital video standard for consumer electronics and personal computers. In particular, H.264 has already been selected as a key compression codec for the next generation of optical disc formats, HD-DVD and Blue-ray disc. Rate control (RC) plays an important role in allocating H.264 bits to adapt to the actual channel bandwidth and meanwhile achieve high-quality reconstructed...
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