histogram window 中文意思是什麼
histogram window
解釋
用作顯示直方圖和累計分別函數的繪圖窗口。-
In addition, we proposed an adaptive histogram equalization method with variant window size over each pixel. this method produces more appropriate window size for each pixel than others
與已有的方法相比，由該方法生成的窗口大小能較靈活地適應了圖像中不同區域的灰度分佈，取得了較好的結果。 -
Second, the issue of approximate aggregation query on the data streams is discussed. meanwhile, the approximate query theories based on the histogram synopsis is proposed, and the autosuited histogram synopsis method and the histogram synopsis synchronization method are provided. third, the problem of predictive aggregate queries on the continuous data streams is researched, and a new predictive aggregate query method based on basic window synopsis and predictive equation is given
本文圍繞連續數據流上的聚集查詢展開討論，首先針對數據流上的精確聚集查詢問題，提出3種改進的基於滑動窗口的精確聚集查詢演算法，這三種演算法可以在消耗很少內存的情況下提供高效準確的查詢結果;其次討論了連續數據流上的近似聚集查詢問題，給出了基於數據流滑動窗口的直方圖大綱理論，並提出了適用於滑動窗口的自適應直方圖大綱生成演算法和大綱同步策略;最後討論了連續數據流上的預測聚集查詢問題，提出了一種基於基本窗口及預測方程方法的預測聚集查詢演算法。 -
The following algorithms are proposed : 1. an algorithm of shot segmentation is proposed. firstly, the data in each frame is quantized in hsv model ; then based on histogram of each frame, the difference of adjacent frames, the difference of cumulate frames and the percentage of the frame difference in a defined window are computed ; furthermore, the adaptive average in a window, the adaptive thresholds and sliding windows are obtained
具體內容為: 1 .在鏡頭分割中，首先將視頻幀數據在hsv顏色空間下進行量化降維，隨后依據直方圖的統計特性，計算連續幀差值，累加幀差值及窗口幀差比，並以此確定自適應窗口均值、多個動態閾值及滑動窗口進行突變鏡頭和漸變境頭分割。
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