研究目的
To present a novel high-accuracy method of channel-mismatch detection in stereoscopic video using a convolutional neural network.
研究成果
The proposed channel-mismatch detection method using a convolutional neural network achieves an AUC score of 0.9963 and an accuracy of 0.9784, outperforming existing methods by 8% in accuracy.
研究不足
The method's accuracy depends on the quality of disparity maps and optical flow estimation. Errors in these estimations can affect the detection accuracy.
1:Experimental Design and Method Selection:
The method combines four existing criteria with a new feature computed by a convolutional neural network to predict channel-mismatch probability. A logistic-regression model is trained on these features for final prediction.
2:Sample Selection and Data Sources:
A training data set of 1,000 stereoscopic scenes from various movies, half with artificially swapped views, and a test set of 900 scenes from other movies.
3:List of Experimental Equipment and Materials:
Fast local block matching for disparity maps and optical flow, fast global smoothing filter for refining disparity maps and optical-flow fields.
4:Experimental Procedures and Operational Workflow:
Calculation of feature values for each frame, smoothing outliers, training logistic-regression model, and testing on the prepared data set.
5:Data Analysis Methods:
Evaluation using accuracy, area under ROC-curve (AUC), and F-measure metrics.
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