sign detection 中文意思是什麼
sign detection
解釋
符號檢查-
We also found an angiostatin - like protein and the detection of its activity on chick embryo chorioallantoic membrane model ( cam ) shows a sign of inhibition of the positive effect of lung cancer cell culture supernatant on cam. conclusion : development of proteomics brings out highly efficient approach for apr research, which overcomes the drawbacks of traditional methods including low efficiency and difficulty in detecting new apr - related proteins and the intrinsic false positive reaction of recently developed ssh technology
結論：蛋白質組學為apr領域帶來高效率高通量的研究方法，改變了傳統的elisa方法需要事先確定靶蛋白的低效的，而且難以發現新蛋白的狀況，也克服了suppressionsubtractivehybridizaition （ ssh ）技術固有的假陽性，實現了對app候選蛋白快速的鑒定。 -
An algorithm for detecting moving ir point target in complex background is proposed, which is based on the reverse phase feature of neighborhood ( rpfn ) of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign. firstly, pairs of points with rpfn are detected in the difference image between neighbor frame images, with which a virtual vector graph is made, and then the moving point target can be detected by the vectors ' sequence cumulated in vector graphs. in addition, a theorem for the convergence of detection of target contrail by this algorithm is given and proved so as to afford a solid guarantee for practical applications of the algorithm proposed in this paper. finally, some simulation results with 1000 frames from 10 typical images in complex background show that moving point targets with snr not lower than 1. 5 can be detected effectively
基於運動點目標在鄰幀差分圖像中所具有的近鄰反相特徵，即運動點目標的兩個位置相鄰近、灰度值一正一負，提出一種在復雜背景下，基於紅外序列圖像的運動點目標檢測演算法.本演算法利用該特徵在鄰幀差分圖像中檢測反相點對，進而構造反相點對矢量圖，最後依據累積反相點對矢量圖中多矢量首位相接的連續性檢測出運動的點目標.文中給出並證明應用本演算法能以概率1檢測到運動點目標的收斂性定理.對典型復雜背景下10幅1000幀圖像的模擬結果表明，當信噪比大於或等於1 . 5時，可以有效檢測出運動點目標 -
Cascade representation is adopted to represent face rapidly to improve the fast face representation from coarse to fine, from simple to complex, and to improve the speed and accuracy of the processing. subsequently, designs of the classifiers are described in three aspects. first of all, some common classifiers are firstly discussed such as sf ( sign function ), nn ( nearest neighbour ), adaboost, svm ( support vector machine ), ann ( artificial neural network ) etc. then appropriate classifiers for face detection and recognition are selected
通過對pca 、 lda 、 gabor和like - harr人臉表示方法的研究，分別為人臉檢測和識別選取了較為穩定而準確的人臉表示；初步嘗試了利用adaboost分類器進行特徵選擇從而消除冗餘特徵，並且提出了採用級聯表示方法快速表徵人臉，從而實現由粗到精、由簡單到復雜的快速人臉表示，這樣既提高了人臉的檢測和識別的速度，還有利於檢測率和識別率的提高。 -
Message authentication code hash functions are commonly used with digital signatures to sign data, while message detection code hash functions are used for data integrity
消息身份驗證代碼（ mac ）哈希函數通常與數字簽名一起用於對數據進行簽名，而消息檢測代碼（ mdc ）哈希函數則用於數據完整性。 -
Based on the theoty of statistical dctection and research on distribution of dct coefficiefits, the chapter 3 proposes a robust 3d motion blind watermark detection algorithin, which is a sign correlation detection scheme
第三章基於統計檢測理論與dct變換系數分佈的研究，提出一個魯棒的三維運動盲水印檢測演算法，它是一個dct變換域上的符號相關性檢測演算法。 -
By posing the difference on mathematical models between blind detection and non - blind detection, we devise the sign correlation detector ( scd ) and the normalized liner correlation detector ( nlcd ) based on the laplacian distribution model and the local gaussian distribution model of the host signal respectively. a series of experiments in dct domain and dwt domain show that these two detectors are more robust than linear correlation detector ( lcd )
基於局部最優檢測理論得到了廣義高斯分佈模型下盲檢測器的一般形式?幅度一符號相關檢測器，通過計算幅度一符號相關檢測器相對于線性相關檢測器的漸進相對效率，建立了漸進相對效率與宿主信號形狀參數之間的關系，從理論上證實了幅度一符號相關檢測器的高效性。 -
In early detection of breast cancer, digital ma mmography is considered to be the most reliable method, the presence of microcalcification clusters ( mccs ) is an important sign for the early detection. in this thesis, we first try to extract some useful features of mccs recommended by experts, and then perform classification directly by cs - matmhks, consequently, more information can be saved and the rate between fp and fn can be controlled and traded - off
在乳腺癌早期診斷中，乳腺x片被認為是最有效的技術之一，乳腺癌在x線圖像下的主要表現是腫塊和微鈣化點，本文主要是針對微鈣化簇，首先提取一系列醫學專家認為對分類有用的特徵，然後直接用cs - matmhks分類器進行診斷，從而保留了較多的判別信息，同時當提取的特徵很多即輸入模式維數很大時，用矩陣化演算法又降低了發生過擬合（ overfitting ）的可能性。 -
Applying generalized gaussian distribution to statistical model of the alternating current coefficient of discrete cosine transform, an adaptive blind watermark detection algorithm is presented on the basis of sign detector and linear correlate detector and its probability efficiency is deduced
摘要根據數字圖像離散餘弦變換域交流系數的廣義高斯分佈模型，在符號檢測器和線性相關檢測器的基礎上，提出一種盲水印自調節的檢測演算法，並推導出該檢測器有較高的檢測效率。
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