【正文】 紋圖像 各個流程及比對的結(jié)果 .采集指紋圖像之前，指紋模塊必須要檢測手指是否放在采集窗口上，所以就要有錄入指紋這一項(xiàng)功能。上位機(jī)只要有上傳指紋的命令，模塊可以立即將數(shù)據(jù)傳送到指定位 置。通過查閱大量的文獻(xiàn)資料、綜合分析考慮 。 模式區(qū)就是指紋上包括了總體特征的區(qū)域，在此區(qū)域可以分辨出指紋是屬于哪一種類型的。 三角點(diǎn)位于從核心點(diǎn)開始的第一個分叉點(diǎn)或者斷點(diǎn)，或者兩條紋路會聚處、孤立點(diǎn)、折轉(zhuǎn)處，或者指向這些奇異點(diǎn)。 局部特征是指指紋上節(jié)點(diǎn)的特征，這些具有某種特征的節(jié)點(diǎn)稱為細(xì)節(jié)特征或特征點(diǎn)。特征點(diǎn)的參數(shù)包括：方向（節(jié)點(diǎn)可以朝著一定的方向）、曲率（描述紋路方向改變的速度）、位置（節(jié)點(diǎn)的位置通過 x/y 坐標(biāo)來描述，可以是絕對的，也可以是相對于三角點(diǎn)或特征點(diǎn)的）。對 SDK的有效應(yīng)用分為兩種：隱式鏈接和顯示鏈接兩種方式。 8051 串行通訊的方式選擇、接受和發(fā)送控制以及串行口的狀態(tài) 12 標(biāo)志等均由特殊功能寄存器完成。 指紋識別系統(tǒng)單片機(jī)采用 8051 單片機(jī)，它是整個控制器的核心部件。它通過與之相配套的指紋傳感器，可構(gòu)成一個獨(dú)立的指紋識別系統(tǒng)，或作為一個完整的外部設(shè)備。 指紋識別系統(tǒng)是一個典型的模式識別系統(tǒng)，包括指紋圖像獲取、處理、特征提取和比對等模塊。 指紋 圖像獲?。和ㄟ^專門的指紋采集儀可以采集活體指紋圖像。另外，也可以通過掃描儀、數(shù)字相機(jī)等獲取指紋圖像。 紋型是指紋的基本分類，是按中心花紋和三角的基本形態(tài)劃分的。 指紋形態(tài) 指紋形態(tài)和細(xì)節(jié)特征提?。褐讣y形態(tài)特征包括中心（上、下）和三角點(diǎn)（左、右）等，指紋的細(xì)節(jié)特征點(diǎn)主要包括紋線的起點(diǎn)、終點(diǎn)、結(jié)合點(diǎn)和分叉點(diǎn)。 硬件特性： 80C51 單片機(jī)是在 8051 的基礎(chǔ)上發(fā)展起來的， 8051單片機(jī)與 80C51 單片機(jī)從 外形看是完全一樣的，其指令系統(tǒng)、引腳信號、總線等完全一致（完全兼容），主要差別就在于芯片的制造工藝上。 復(fù)位電路則采用簡單 RC 復(fù)位電路， 同時又可與一些需要復(fù)位的外圍電路相連，達(dá)到復(fù)位與單片機(jī)同步。輸入電壓 iV 的選擇依據(jù)是： m ax 0 2iiV V V V? ? ? 式中： maxiV —— 穩(wěn)壓塊允許的最大輸入電壓； 0V —— 穩(wěn)壓塊的輸出電壓； 2V—— 穩(wěn)壓塊輸入與輸出之間的最小壓差。 系統(tǒng)針對目前的指紋識別設(shè)別存儲量小、處理速率慢的現(xiàn)狀，采用高性能的 51 系統(tǒng)單片機(jī)作為處理核心，實(shí)際實(shí)現(xiàn)了一款高性能的網(wǎng)絡(luò)指紋采集識別終端。 根據(jù)設(shè)計(jì)要求，本設(shè)計(jì)已經(jīng)基本完成題目要求但還存在不足之處。 另外在調(diào)試過程中，以保證作品實(shí)現(xiàn)功能準(zhǔn)確為前提，盡量做到電路簡單、美觀、效果好、成本低，以增強(qiáng)其實(shí)用價值。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept i. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. 21 Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。s 150th anniversary celebrations and will attend City39。s governing body, has also ordered an immediate investigation into the referee39?；蛟S是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個不同的日子過成了同一天的樣子；或許是追溯過去，對自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39。t remember his appearance. 童年時，覺得壓歲錢和新衣服是過年必備，但是隨著年齡的推進(jìn)，會越來越發(fā)現(xiàn)，那些東西根本就可有可無；初中時，以為要有一場暗戀才意味著真正的成長，但三年過去后，自己心平氣和的寫同學(xué)錄的時候，突然就發(fā)現(xiàn)是不是真正的成長了，好像并沒有那么重要了；然后到了高中，覺得非要吐露出自己的心聲才能為高中生涯里的懵懂情愫劃上一個句點(diǎn)，但畢業(yè)晚會的時候最終還是被梗塞在了咽喉，后來再次站在他曾經(jīng)揮汗如雨的球場，看著他投過籃球的球框時，突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。想要的，不想要的，界限明確，好像沒有什么可以撼動自己。 At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt。t start planning... Those years, those days of do, finally, like youth, will end in our life. 此刻，天空是陰暗的，空氣里有著剛下過雨之后的清新因子。s not needed. Instead, he plans to deploy his 270squarefoot (25squaremeter) main chute at an altitude of around 5,000 feet (1,524 meters). In order to deploy this chute successfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds. Even if everything goes as planned, it won39。 Baumgartner the disappointing news: Mission aborted. r plays an important role in this mission. Starting at the ground, conditions have to be very calm winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our daytoday weather lives. It will climb higher than