entropy current 中文意思是什麼
entropy current
解釋
熵漢-
Moving object detection adopts a method of dynamic difference background image, whose principle is to calculate difference picture among the current frames and background images and take the motion adjudging threshold which owns maximum information entropy to determine moving area ; and dynamically updates background by using kalman filter. thus, the system realizes the judgment of the moving area under the complicated changing background
運動目標檢測採用動態差分背景圖像法，其原理是利用序列圖像中當前幀圖像減去背景圖像，並採用使信息熵最大化的運動判決門限判定運動區域;採用kalman濾波動態背景生成實現了背景的動態更新;從而實現了復雜變化背景下圖像運動區域的判決。 -
Second, a novel algorithm named model predicition ( mp ) is proposed to wipe off spectral correlations of hyperspectral images. mp algorithm finds the linear model of hyperspectral images, in which predictive coefficients are set up that is based on snr. because predictive coefficients include current spectral band, average entropy of the error data is decreased and snr is increased after mp
Mp演算法建立了高光譜圖像的線性模型，推導出了信噪比意義下的最佳預測系數，由於系數中包含了當前譜帶的數據，因此經過mp演算法去相關之後，殘差圖像的平均熵有所降低，同時信噪比提高很多。 -
As for the disadvantage of the current way to separate the large data set to a group of ones, from the perspective of informatics, advanced a new way to separate the large data set to a group of ones based on entropy, namely select intersected quomodo to less macro - entropy of data set, the results of the experiment prove this method is validity
針對現行數據集分割方法中的不足，從信息學的角度出發，引用信息熵理論，提出了一種簡單可行的數據集分割方法，即選擇使數據子集的總體熵較小的分割方式，實驗結果證明了這種方法的有效性。 -
They all are snr scalable, and, especially ebcot is resolution scalable. these properties are essential in transmission of image on internet. because the performance of an entropy coder can be significantly improved by having the coder dynamically adapt to the current " context ", context models also have widely been adopted in image compression
基於小波的圖像壓縮已成為圖像壓縮研究的主流，一些小波系數模型也隨之產生，如ezw 、 spiht和用於jpeg2000的ebcot ，這三種模型都具有snr可擴展性質，其中ebcot還具有解析度可擴展性質。 -
This paper first research on main technologies used by avs standard, which include prediction, transform, quantization, in - loop filter, and entropy encoding, and then focus on the 2d - vlc entropy coder of avs, which is context - based adaptive coder. this encoder operates on run - level pair, and it uses the type of current block and value of current coefficients to switch vlc code - table. these tables are designed according to the distribution of transformed coefficients, and this way is much better than using only one table to code all residual coefficients in one 8x8 block
本文首先詳細研究了avs標準的核心技術，包括預測編碼、變換量化、環路濾波器以及掃描和熵編碼等，之後重點研究了avs標準中使用的基於上下文的2d - vlc變長編碼方法，這種方法編碼的是（ run ， level ）數對，同時根據當前編碼塊的類型和殘差系數這兩種上下文信息來切換碼表，這些碼表是預先根據變換系數在不同位置的分佈信息設計好的，這樣要比只使用一個變長碼表來編碼塊內所有位置上的殘差系數的壓縮效果要好得多。 -
Firstly, a radiometric correction algorithm applying local maximum entropy is introduced, and then based on the analysis of current correction algorithm, a much better one is presented, which proved to be effective in the correction of radiometric image distortion
論文介紹了局部最大熵圖像輻射校正方法，分析了該演算法的優缺點，並對其進行了改進。通過改進的局部最大熵方法實現了圖像輻射畸變的校正。
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