pixel frequency 中文意思是什麼
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The pixel size of p + / n - well / p - sub structure is 100 umx 100 n m, fill factor is 77. 6 %. it can obtain target information with illuminance intensity in the range of 0. 011x ~ 98, 0001x, and the sensor photoelectric sensitivity is 35v / lx ? s. when the method of changeable reset frequency double scanning is used, the photoelectric dynamic range can be 139. 8db, which is high in the 0. 6 um level cmos image sensors already reported
在對感光單元進行器件物理結構優化的研究中，通過採用深結深光電管結構，提高了傳感器的感光響應，其中p m階」襯底結構的傳感器面積為100umx100urn ，感光面積百分比為77石，可對0刀98 ， 000lx照度的目標信號進行傳感，感光靈敏度大於3sv ix ? s ，採用了變頻兩次掃描后，動態范圍可達139 -
Because of the full target texture and the acute speckle of the microwave - imaging machine, especially for the single frequency, single look and single polarization sar images, it is very difficult to extract image characteristics in the image pixel level
Sar圖像地物分類技術的困難性主要源於微波成像的特殊機理和嚴重的相干斑干擾，使得基於圖像象素層的特徵提取非常困難。對單視單極化sar圖像而言，這個問題更為突出。 -
We raised a new model that we disassemble the character into several parts, which could be recognized by computer topologically based on the high - frequency wavelet coefficients vector, disregarding the traditional extraction method that used the statistical or structural feature based on the individual pixel in the 2 - dim plane of character. moreover, the concept of multi - dim cognizing feature model was put forward by encoding the character, according to its " location and run - length information. the information confusion and redundancy could be largely eliminated, as leaded to the improving of the preciseness when recognizing the character
克服以往結構、統計方法在字元特徵提取中無法剔除噪聲、偏移等冗餘信息的不足，以認知的新思路分析圖像，給出基於小波子圖的筆劃定義，給出一種注重反映字元部分最為重要的筆劃的類型、數量、遊程、位置特徵，改進了基於字元二維圖像的統計與結構特徵提取方法因變形，畸變造成信息混淆和冗餘；給出了提取多屬性字元認知特徵的方法和識別機制，實驗表明，該方法能有效的識別字元； 3 -
Then adjust the parameters of gabor filter using the orientation and average ridge frequency at each pixel to realize adaptive filtering. the unrecoverable region is segmented based on orientation certainty. experimental results show a very good visual enhancement effect
求出每個象素點處的紋線方向和方向一致性，以及紋線的平均頻率，用方向和平均頻率調節gabor濾波器對每個象素點進行自適應濾波，並利用方向一致性分割出不可恢復區域，實驗表明具有很好的增強視覺效果。
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