【正文】 me39。隸書 39。 圖 連續(xù)幀相減程序運行結(jié)果圖 內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)論文 24 直方圖相減 MATLAB實現(xiàn) 圖 視頻《羅馬假日》漸變鏡頭部分視頻幀 內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)論文 25 程序代碼： info=aviinfo(39。)。E:\奧黛麗赫本 .avi39。%讀入視頻 frames=size(mov,2)。%幀寬 h=。E:\39。 % I=。%轉(zhuǎn)成灰度圖 % imwrite(J,strcat(int2str(m),39。,39。))。%讀取視頻幀 y=mov(i).cdata(:,:,:)。%轉(zhuǎn)成灰度圖 b=rgb2gray(y)。 f=imhist(b)。%直方圖幀差 k=sum(g)。%閾值設(shè)定為差異累加值的 3% if g(i)th disp(i1)。 plot(h,g)。幀數(shù) 39。FontWeight39。bold39。 ylabel(39。,39。,39。)。直方圖相減 39。FontSize39。FontWeight39。bold39。FontName39。隸書 39。 圖 直方圖相減程序運行結(jié)果圖 內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)論文 27 結(jié)論 現(xiàn)在，視頻的大量使用，使得視頻內(nèi)容檢索成為現(xiàn)階段的主要問題。大部分鏡頭邊界為突變鏡頭邊界，少部分為漸變鏡頭邊界。本文主要用基于連續(xù)幀相減的像素差法和直方圖相減法進行鏡頭邊界檢測。緊接著介紹了視頻鏡頭邊界的概念，視頻鏡頭邊界檢測算法的分類，視頻鏡頭邊界檢測的過程以及主要方法、存在的問題等。第二章主要對視頻數(shù)據(jù)結(jié)構(gòu)的特點以及表示作了介紹，并對 MATLAB 作了簡要介紹。 第三章主要對解壓縮域突變鏡頭的主要方法及 MATLAB 實現(xiàn)作了介紹。當發(fā)生變化的像素點數(shù)大于總像素點數(shù)的 7%時，即判定為鏡頭邊界。當使用這兩種方法對《羅馬假日》進行檢測時，檢測結(jié)果良好，第 37 幀和第 110 幀為突變鏡頭邊界，幀間差遠遠超過閾值。本文中漸 變鏡頭邊界的檢測與突變鏡頭邊界檢測唯一的不同就是閾值的不同，基于連續(xù)幀相減的像素差法閾值設(shè)定為總像素點數(shù)的 2%，超過這個閾值就判定為鏡頭邊界。當超過這個閾值時，即判定為漸變鏡頭邊界。 最后，對全文進行了總結(jié)，以及所使用方法的結(jié)果作了一個總結(jié)性的討論。在從開始寫作到最終完成得到了許多人的支持與幫助，是他們無私的幫助使我能夠圓滿的完成視頻鏡頭邊界檢測程序的設(shè)計，順利的完成整個畢業(yè)論文的撰寫，在此我對他們一并表示我最誠摯的感謝。在初期，李老師為我提供了許多優(yōu)秀的參考文獻和資料，同時還對論文的研究思想和研究方向做了詳細說明，并指導(dǎo)我確立了 論文結(jié)構(gòu)框架，這對我之后論文的撰寫打下了基礎(chǔ)。 馬上就要畢業(yè)了，回想這四年的大學(xué)生活，感慨頗多。雖然一直在掛科，但也有所收獲?？傊€有很多。有理解、有包容、有處事靈活、有堅持原則。 請您刪除一下內(nèi)容， O(∩ _∩ )O謝謝?。。?Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese 請您刪除一下內(nèi)容， O(∩ _∩ )O謝謝?。?！ National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also mon that you39。s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. Autumn in the northern part of the country es earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long distance and even camp here only to capture a moment of the nature wonder. The silver birch turns golden, while the larch is still proudly green. You will find yourself drowned in the intoxicating red of the wild fruits as well as the glamour of flowers in full blown. And your heart will be lingering on the woods as it39。s misery, the cow told him to turn its hide into a pair of shoes after it died. The magic shoes whisked Niulang, who carried his two children in baskets strung from a shoulder pole, off on a chase after the empress. The pursuit enraged the empress, who took her hairpin and slashed it across the sky creating the Milky Way which separated husband from wife. But all was not lost as magpies, moved by their love and devotion, formed a bridge across the Milky Way to reunite the family. Even the Jade Emperor was touched, and allowed Niulang and Zhinu to meet once a year on the seventh night of the seventh month. This is how Qixi came to be. The festival can be traced back to the Han Dynasty (206 BCAD 220). Traditionally, people would look up at the sky and find a bright star in the constellation Aquila as well as the star Vega, which are identified as Niulang and Zhinu. The two stars shine on opposite sides of the Milky Way. Customs In bygone days, Qixi was not only a special day for lovers, but also for girls. It is also known as the Begging for Skills Festival or Daughters39。s Day on February 14, characterized by bouquets of roses, chocolates and romantic candlelight dinners, than they do about their homegrown day for lovers. Even Qixi is nowadays referred to as the Chinese Valentine39。s Day! in shops, hotels and restaurants. But few young women will mark the festival with their boyfriends, or take part in traditional activities to pray for cleverness. A largescale of exhibition on the Silk Road opened to the public in the National Museum on Thursday. The exhibition displays more than 400 treasures from Shaanxi province, Gansu province and 14 other regions. It is largest scale exhibition that shows the history of the Silk Road in recent years. As APEC is going on in Beijing, the exhibit aims to show the world this brilliant section of history. The Silk Road is a series of trade and cultural transmission routes that were central to cultural interaction through regions of the Asian continent. It connected the West and East by linking traders, merchants, pilgrims, monks, soldiers, nomads, and urban dwellers from China and India to the Mediterranean Sea during various periods of time. I met my dear hubby in 2021 the second year I was in my school and it was the first year when he came here. We became colleagues. And there was nothing special happening during that year. He was just a kind and humble brother graduated from the same college as me. But we did not know each other till he became my colleague and his office desk was just in front of me. There was only a glass between us. So actually we could see each other when we both look up. But it is not the main reason that reall