“…In order to meet the above needs and solve the technical difficulties of UAV target detection, in recent years, researchers have carried out a series of related research. Traditional UAV image target detection methods include frame difference method, background subtraction method, sliding window-based feature extraction algorithm [12], meanshift algorithm, and edge detection algorithm, and recently, deep learning methods are proposed, for examples, fast deep neural networks with knowledge guided training and predicted regions of interests [13], small unmanned aerial vehicle [14], object-based hierarchical change detection [15], application of unmanned aerial vehicles [16], and real-time implementation using GPUs [17]. Traditional sliding window-based features are usually artificially designed Histogram of Oriented gradient features (HoG) [18], Scaleinvariant feature transform features (SIFT) [19], Haar-like wavelet features [20], etc.…”