noise speckle 中文意思是什麼

noise speckle 解釋
噪聲斑點
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • speckle : n. 斑點；斑紋〈常用 p. p. 〉。vt. 1. 加斑點。2. 玷污。3. 點綴。
  1. We use wavelet transform and spiht encoding method to compress the data that we got after speckle noise reduction. the results compare favorably with jphg compression methods

    對于基於邊緣信息的garrote去噪方法我們同傳統的軟去噪和硬去噪以及lee濾波方法進行了比較，得到了很好的實驗結果。
  2. The plan of speckle noise reduction we proposed is use the garrote shrinkage function assisted by edge information of scale 2. we compare the speckle reduction results by conventional soft - valve, hard - valve and lee filter methods, and get very good conclusion

    我們提出的相干斑抑制方法是利用小波變換檢測圖像尺度為2的邊緣信息，再利用檢測出的邊緣信息利用garrote削減函數進行小波域的相干斑噪聲濾除。
  3. For example, in holographic imagery the speckle pattern corresponds to troublesome background noise.

    例如，在全息照相中，斑紋圖樣相當于討厭的背景噪聲。
  4. Speckle noise suppression and filtering methods for spaceborne sar images

    圖像的斑點噪聲抑制與濾波研究
  5. Experimental result shows the algorithm has nearly the same edge preserving performance as nonlinear multiwavelet transform, and nearly the same speckle noise suppression performance as filtering

    此演算法對原圖像進行多小波變換，然後在不同尺度，不同方向進行自適應閾值處理，模擬結果表明：本演算法能夠有效地抑制了斑點噪聲，又保留有用信號及邊緣信息。
  6. It can provide higher speed and alleviate the spectral degradation which usually goes with the existing algorithms, as well as constrain speckle noise of radar images. in respect of image fusion algorithm, the fusion rules and operators are essential. a new set of fusion rules and corresponding operators are given in this thesis

    實驗證明，在融合源圖象特性差異較大的情況下，該演算法與已有的基於小波分析的遙感圖象融合演算法相比較性能更優，具有運算速度快、減少光譜退化的特點，並能在一定程度上抑制相干斑噪聲。
  7. Two methods of reducing the speckle noise and improving the depth resolution in optical 3d profilometry with laser sheet are proposed in the paper

    本文提出了兩種激光片光三維傳感中減小激光散斑影響，提高深度解析度的辦法。
  8. The method not only removes the speckle noise, but also enhances contrast

    即去除了閃斑噪聲，又提高了圖像的清晰度。
  9. Because of the principle of ultrasonic imaging, removing the speckle noise in the images is the most difficult focus in ultrasonic image processing

    鑒于超聲成像的技術原理，去除圖像中的閃斑噪聲一直是圖像處理的難點所在。
  10. Generally, it is difficult to extract and matching feature in high precision using classic registration method due to speckle noise and the complex distribution of gray - level in sar image

    由於sar圖像相干斑噪聲的影響和灰度分佈的復雜性，利用傳統方法作配準時一般面臨特徵提取和局部灰度匹配難度大、精度無法滿足需要的困難。
  11. An approach for quality assessment of the filtered images was proposed. after qualitative and quantitative assessment, some conclusions have been drawn : ( 1 ) spatial filters are affected greatly by filtering window size, the size of 5 5 presents best result ; ( 2 ) enhanced frost filter, enhanced lee filter and gamma - map filter smooth the speckle noise well with a small sacrifice of losing texture details and narrow edges, which are better than other popular spatial filters ; ( 3 ) the results show that the proposed filter retains texture and edges well, so more researches are expected

    通過對jers - 1sar圖像的各種濾波圖像進行了目視評價和指標比較，得出如下結論: （ 1 ）各種空間濾波器受濾波窗口的影響很大， 5 5大小的濾波窗口濾波效果較好； （ 2 ）對比各種常用的空間濾波器，增強的frost濾波器、增強的lee濾波器和gamma - map濾波器在去噪和紋理、結構特徵保持方面效果最好； （ 3 ）小波濾波方法在保持sar圖像紋理細節方面表現出了很好的優勢，還有待進一步研究。
  12. The filtered results to a real interferogram showed the proposed method is powerful to interferogram speckle noise reduction, as well as it can preserve fine details in the interferogram that are directly related to the ground topography and maintain phase values distribution

    對一幅干涉相位圖的濾波結果表明，該演算法很好的抑制了斑點噪聲，極大的降低了殘余點的數量，保持了條紋邊緣和相位細節信息，並使絕對相位保持在一定的動態范圍。
  13. It is widely used in both civil and military areas now. since sar and polarimetric sar is a coherent imaging system, its inherent speckle noise will produce important influence on the post - processing of sar images, such as target detection, classification and recognition, etc. so, speckle reduction becomes to the first step of sar images post - processing

    由於sar和極化sar的相干成像特性，其固有的相干斑噪聲嚴重影響了后續目標檢測、分類和識別等應用，因此相干斑的抑製成為sar和極化sar圖像后處理的第一步，這種噪聲的抑制方法一直是極化sar信號處理領域一個很值得探討的問題。
  14. In the pretreatment of these images, the speckle noise model has been improved in this dissertation. on the basis of traditional methods of neighborhood averaging and low - pass filtering, the methods of adaptive histogram enhancement and the improved adaptive weighted median filter have been presented, and the noise has been reduced greatly

    在圖像的預處理的過程中，論文首先改進了超聲圖像的speckle噪聲模型，其次在借鑒傳統的方法的基礎上，提出並實現了自適應圖像增強和自適應濾波處理方法，較好地抑制了噪聲。
  15. 1. speckle noise suppression

    Sar圖像去噪演算法研究。
  16. In this paper, we propose a compression scheme with speckle noise reduction

    本文中我們提出了一種結合相干斑抑制的高效的壓縮合成孔徑雷達圖像整體方案。
  17. Besides, many classification errors are caused by mixed pixels and speckle noise of the sar image

    另外，許多分類錯誤是由sar圖像的像素點類別混淆和相干斑噪聲干擾引起的。
  18. Both filtering methods can significantly reduce speckle noise, and at the same time preserve the image notable details

    兩種演算法都可以在濾除斑點噪聲的同時較好地保留圖像的突出細節特徵。
  19. In this paper, a nonlinear multiwavelet transform adaptive threshold value method is proposed to suppress speckle noise

    摘要文章提出了一種新的用於斑點噪聲抑制的非線性多小波變換自適應閾值演算法。
  20. The arising mechanism, model and statistical characteristics of speckle noise are described and the popular filters are analyzed

    首先介紹了斑點噪聲產生機理、模型和統計特徵，對常用的圖像濾波器進行了分析。
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