The key frame interpolation algorithm by conditional choosing quaternion interpolation equations

2015 ◽  
pp. 677-680
Keyword(s):  
Interpolation Algorithm ◽  
Frame Interpolation ◽  
Key Frame ◽  
Quaternion Interpolation

scholarly journals Frame Interpolation Based on Visual Correspondence and Coherency Sensitive Hashing

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Lingling Zi ◽  
Junping Du ◽  
Qian Wang
Keyword(s):  
Video Sequences ◽  
Interpolation Algorithm ◽  
Surveillance Video ◽  
Intelligent Monitoring ◽  
Frame Interpolation ◽  
Detection Approach ◽  
Visual Correspondence ◽  
Predicted Values ◽  
The One

The technology of frame interpolation can be applied in intelligent monitoring systems to improve the quality of surveillance video. In this paper, a region-guided frame interpolation algorithm is proposed by introducing two innovative improvements. On the one hand, a detection approach is presented based on visual correspondence for detecting the motion regions that correspond to attracted objects in video sequences, which can narrow the prediction range of interpolated frames. On the other hand, spatial and temporal mapping rules are proposed using coherency sensitive hashing, which can obtain more accurate predicted values of interpolated pixels. Experiments show that the proposed method can achieve encouraging performance in terms of visual quality and quantitative measures.

A New Rough Machining Approach for a Ruled Surface Impeller

2011 ◽  
Vol 79 ◽  
pp. 53-58 ◽  
Author(s):  
Quan Liang ◽  
Yong Zhang Wang
Keyword(s):  
Removal Rate ◽  
Ruled Surface ◽  
Interpolation Algorithm ◽  
Rough Machining ◽  
Plunge Milling ◽  
Milling Method ◽  
Quaternion Interpolation ◽  
Five Axis ◽  
Cutting Path ◽  
Cam Software

In order to improve the efficiency of integrated impeller rough machining and make up the deficiency of commercial computer aided manufacturing (CAM) software in five-axis plunge milling, a ruled surface impeller plunge milling method was presented. Boundary vectors were generated according to an impeller’s ruled surface blade. Quaternion interpolation algorithm was used to interpolate cutter axes according to these boundary vectors. The computing formula of row spacing and stepover are deduced to ensure high material removal rate and machining efficiency. Hub surface and a blade finishing cutting path were also generated. Based on the algorithm, an integrated special impeller plunge milling CAM software was independently developed. The generated cutting path was simulated and also carried out practically. Simulation and experimental results show that this method improves the efficiency of impeller parts rough machining to a certain extent.

NEW MULTIPLE FRAME MOTION COMPENSATED INTERPOLATION ALGORITHM FOR FRAME RATE UP-CONVERSION

2008 ◽  
Vol 17 (05) ◽  
pp. 835-844
Author(s):  
ZHUO XUE ◽  
KOK-KEONG LOO ◽  
JOHN COSMAS ◽  
PIK-YEE YIP
Keyword(s):  
Hardware Implementation ◽  
Frame Rate ◽  
Perceptual Quality ◽  
Interpolation Algorithm ◽  
Frame Interpolation ◽  
Multiple Frames ◽  
Multiple Frame ◽  
Frame Rate Up Conversion ◽  
Frame Motion ◽  
Multiple Reference

In this paper, a new frame rate up-conversion (FRC) using Backward Multiple Reference Frame Motion (BMRF) compensated interpolation (MCI) algorithm is proposed. The BMRF algorithm has been compared with two most common MCI methods, Temporal Linear (TLIN) and Bidirectional MCI (BID) used in FRC, in the aspect of PSNR, perceptual quality, and computational complexity. The simulation results clearly showed that BMRF presented a trade-off solution between computation and interpolation quality. By using simple weighted frame interpolation between multiple frames, it reduced computation rapidly while keeping similar interpolation quality when compared to the BID method. The simplicity of the BMRF algorithm made it suitable for either software or hardware implementation essential for real-time FRC applications.

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