【正文】 測界面，點擊攝像鍵后進入如下 界面進行人臉區(qū)域檢測、圖像預(yù) 處理、特征標(biāo)注、特征提取等 步驟。 基于 OpenCV 的 視頻人臉識別系統(tǒng)的設(shè)計與實現(xiàn) 21 圖 檢測與標(biāo)注界面 在啟動系統(tǒng)后可以手動載入指定圖像，也可以由攝像頭自動載入圖像。接著對圖像進行預(yù)處理（比如灰度化等），然后將人臉大致范圍用圓圈圈出來。 . 實驗結(jié)果及分析 本文采用 adaboost 算法來實現(xiàn)對人臉的檢測，其重點在于對弱分類器的選取。本文使用 MIT 樣本庫，它有人臉樣本 2052 張，非人臉圖片 5021 張。用本庫訓(xùn)練出來的強分類器只對此類圖片敏感。必須進行優(yōu)化。效果如下 所示。接著介紹原型系統(tǒng)的實現(xiàn)，首先啟動系統(tǒng)進入人臉檢測界面，點擊攝像鍵攝像并保 存，對圖像預(yù)處理檢測有無人臉，對人臉進行定位并標(biāo)出關(guān)鍵部位，提取特征與數(shù)據(jù)庫中的特征進行對比識別身份。主要介紹了人臉識別的方法、人臉檢測的常見算法。 人臉檢測在國防軍事、防火防盜、制度考勤、身份識別等方面有著重要的應(yīng)用。隨著對人臉識別技術(shù)的不斷深入研究，我相信人臉識別技術(shù)在不久的將來一定 能夠得到更廣泛的應(yīng)用。西北大學(xué)本科畢業(yè)論文 參考文獻 [1] 周德華 ,毛敏峰 ,徐浩 .一種多人臉跟蹤算法的研究與實現(xiàn) [J]，電視技術(shù)， 2021，275(5)： 88～ 90． [2] 王偉 。方芳 。s annual National Day for Eye Care, the China Youth Development ServiceCenter and Zhejiang Medicine, a leading listed Chinese pharmaceutical pany, jointlyannounced the kickoff of the surve about one month, a questionnaire piled by top eye care medical experts in China willbe distributed through multiple online partners, including , as well asthrough offline survey events held in universities, middle schools and primary schools acrossthe report will be released based on the survey statistics and analysis, and most importantly,guidelines for parents and youth on how to care for the eyes and prevent myopia — agrowing problem in China39。s behaviors to care for eyes, basedon the timely and factual statistics the survey series of followup events will also be held in six cities, including Jinan in Shandongprovince, and Changsha in Hunan province, to educate people on how to care for eyes afterthe survey started. More and more Chinese are jogging to get and stay fit. Most joggers will run alone, but some will jog with friends or even coaches. The Beijing Olympic Forest Park is one of the most popular spots. It is packed with runners in the afternoon, usually after work, and at weekends. Jogging after a whole day39。s smoggy days. If the smog is severe, I39。ll wear a mask, or just ignore the smog and go on jogging, she said. For those who are not so athletic, jogging also has its attractions. Wu Houbin started roughly two years ago, when he was severely obese. Within two months, his weight dropped from 82 kilograms to 64 kilograms. The success helped him recover health, and he has made friends. Jogging does not require speed, but stami na. If you want to stick to the game, you need to take it as a mission, a habit, and then eventually a hobby, Wu said. But persevering with jogging is not always easy. Jogging is beneficial for heartlung function, and the skeletal system, but doctors say improper technique damages the joints, especially the knees and ankles. Excessive jogging wears down the body, and harms one39。s Pink Revolution, an annual campaign that seeks to raise awareness and funds for breast cancer research, the hotel recently announced. A major sponsor of the campaign for three years in a row, Conrad Macao has pledged to donate a portion of its proceeds to the fund, includ ing those collected from selling its popular bear and rubber duck merchandise, in limited pink editions. Pink is the theme for floral arrangements and decorations in the hotel in October. In addition, on Fridays that month, members of the management and staff will add something pink to their uniforms, regular s and handwritten guest cards. Breast cancer is the most prevalent type of cancer among women in Hong Kong and is also of significant concern in Macao and around the world, regardless of age, general manager Bede Barry said in a statement. The hotel has enlisted the support of a number of international and local celebrities to help drive the cause, including South Korean actor Jung Suk Won. This year, a lucky guest who stays at the hotel during the campaign and also donates money for the cause will win a necklace specially designed by Arte Madrid, a Spanish jewelry brand. Women should strive to balance quality of work and life, and have children at a young age. As a doctor I see much suffering because of this imbalance. Xiao Ying, 36, works for a large law firm. Her job means lots of travel, a heavy caseload and a large number of meetings, so her schedule is hectic. She has been pregnant twice, but had abortions on both occasions because she felt her busy, highpressure career wasn39。s ovarian function has declined and a bilateral oviduct blockage has occurred, meaning that in vitro fertilization is her only option. So, after reducing her workload, Xiao underwent IVF treatment. Luckily, she got pregnant after just one treatment cycle, but later experienced vaginal bleeding, and rushed to the hospital. I told her to rest and carry on with the treatment (to prevent a miscarriage). As Zubin Zarthoshtimanesh, a yoga guru, demonstrated postures at a high school stadium in Dujiangyan city, Sichuan province, some 200 students sat on colorful mats watching him closely. It was part of the first IndiaChina international yoga festival in the provincial capital, Chengdu, in Southwest China, where more than 1,000 fans from home and abroad gathered for lessons from 20 leading practitioners of the ancient Indian regimen, from June 1721. Yoga is to India what perhaps tai chi is to China. Many countries other than India and China, also held the first World Yoga Day on June 21, after the United Nations last year agreed to Indian Prime Minister Narendra Modi39。s ancient tradition. ... It is not about exercise but to discover the sense of oneness with yourself, the world and nature.Zarthoshtimanesh, who runs his own yoga center, Iyengar Yogabhyasa, in the Indian financial capital of Mumbai, says: Chinese students are very respectful. For me, all students are the same no matter what their race is and where they e from. The most important thing is to remove mental walls. Zarthoshtimanesh learned yoga from the late Yogacharya Iyengar and traveled with the master to 西北大學(xué)本科畢業(yè)論文 different countries. Consulate General of India in southern China