Target detection active sampling method based on time sequence variance threshold
A technology of target detection and active sampling, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of missing key information and high cost, and achieve the effect of reducing negative impact and labeling cost
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[0041] Such as figure 1 Shown is a flow diagram of the mechanism of the present invention. Assume that initially there is a dataset consisting of a small number of annotated images , and a dataset consisting of a large number of unlabeled images . First, initialize the target detection model with a small amount of labeled time-series image data set L and set the number of planned query samples n and the variance threshold δ, and initialize the number of selected samples q to 0. Subsequently, the model is initialized with the labeled image set, and the target detection model is output to predict the unlabeled frame. Then, calculate the model uncertainty of each iteration for each unlabeled frame according to the prediction results, and arrange them from large to small. Take the sample with the largest model uncertainty, if the timing variance of the sample is greater than the threshold and the adjacent frame is not selected, then the sample will be marked by the expert qu...
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