指紋紋線數 的英文怎麼說
中文拼音 [zhǐwénwénxiànshǔ]
指紋紋線數
英文
fingerprint ridge count-
So it can be one method to track the transaction. ( 2 ) uses combinatorial theory and constructs nonlinear dbbd ( differential balanced block design ) code as fingerprint for digital media ( image, video, etc )
利用組合設計理論中的均衡關聯區組設計，構造出非線性均衡關聯區組設計碼作為數字媒體（圖像、視頻等）指紋碼字，該碼字具有抵禦串謀攻擊的特性。At first, the paper confirms singular area by singular detection, then designs a series of low - pass filters that have different templates according to the different position in finger image for a local area, at last sets up gabor filter parameters according to the characteristics of fingerprint image. the improved enhancement algorithm has a better robust, and can preserve texture structure of singular area effectively. in binary noise clearance, the paper presents an algorithm that clears the biggish white speckles and black speckles
在指紋圖像增強方面，本文針對傳統的基於gabor濾波器指紋圖像增強演算法魯棒性差以及通常會改變奇異區紋理結構的缺點，對原有演算法進行了一些改進:首先通過檢測奇異點確定奇異區，然後根據局部區域在指紋圖像中的位置構建相應取值方式的低通濾波器並對該局部區域方向圖進行濾波，最後根據指紋圖像紋線的特點對gabor濾波器參數進行設置。Fingerprint digital image binarization is the key techniques of fingerprint image processing. in this core, the filter based on the block orientations is the key of the cores
指紋數字圖像的脊線二值化是核心技術，而在這個核心中基於塊方向的濾波是核心的核心。Usually, we consider a sampling technique in which each sample is obtained by averaging a diamond portion of the picture, as we know, a large amount of information of a image in nature mainly gathered the small area, at the same time <, . but to finger print gray image, a fine degree of quantization is particularly important for samples taken in regions of a picture across which the gray level changes slowly
目前國內外圖像濾波常用的方法有線性濾波和非線性濾波。線性濾波有完善的理論基礎，數學處理也簡單，易於fft實現，在濾波技術中佔有及其重要的地位，但對于像素受污染的指紋圖像而言由於脈沖噪聲的重脫尾，處理效果並不太理想。In the part of image preprocessing, a segmentation algorithm for fingerprint image based on the information of gradient orientations was programmed. according to the uniformity and partial parallarity of ridges and furrows of fingerprint, a model of gabor filter was established to enhance fingerprint image. since two - dimensional gabor filter could be separated into two one - dimensional filters, the complexity of the algorithm could be reduced efficiently
在圖像預處理方面，利用指紋圖像梯度特性進行圖像分割，根據指紋紋線間距均勻且局部平行的特點，建立了用於指紋圖像增強的gabor濾波函數物理模型，並將二維gabor濾波分解為兩次一維濾波，有效降低了演算法的復雜度。On the basis of quality control theory - statistical process control ( spc ) and process capability index ( cpk ) are integrated with mathematical statistics technology to execute the comprehensive quality control over the whole production process of plastics pipe ( pvc - u double - wall corrugated pipe ). aiming at each process characteristics of the production, it has adopted different controlling models and formed a set of the production quality control system of pvc - u double - wall corrugated pipe. this thesis points out the structure principal and project ideas of the production quality control system of pvc - u double - wall corrugated pipe, which is based on computer technology
運用質量控制理論? ?統計過程式控制制（ spc ）和工序能力指數（ cpk ） ，結合數理統計技術，對塑料管材（ pvc - u雙壁波紋管）整個生產過程質量進行全面控制。針對pvc - u雙壁波紋管生產線的各個工序特點，採用不同的控制模式，形成了一套pvc - u雙壁波紋管生產質量控制系統。並提出了基於計算機技術的pvc - u雙壁波紋管生產質量控制系統的構建原理和設計思路。Hidden - surface removal is to eliminate the solid objects surfaces which are obscured by others. texture mapping is to apply textures to points, lines, polygons, bitmaps, and images to improve the reality of models and decrease the procedure of drawing geometric models. a model " s material properties determine how it reflects light
利用消隱函數消除不可見的線面；利用紋理映射函數對模型進行紋理貼圖，增加了模型的真實感，並減少了建模的難度；利用材質函數為模型指定材料的屬性；利用光照函數表示模型所處的光照條件和環境。Firstly, we introduced the significance and development, and theory of fingerprinting technology in a whole and analyzed that the lower bound on the fingerprint length needed approximately grows logarithmically in the number of uses and linearly in the number of pirates in theory
本文首先對數字指紋技術的意義、發展、理論等方面作了全面的概述；並從理論上分析了理想情況下所需指紋長度的下界近似地隨著碼集可容納用戶數對數增加，隨著抗合謀用戶數線性增加的原理。The most popular forms of biometric identifiers are retina scans, hand geometry, thumb scans, fingerprints, voice recognition, and digitised photographs
在生物統計學的領域中，最常見的身分識別符包括視網膜、掌紋、指模、聲線辨認及數碼相片。分享友人