The system implements pipe - line graphic to be build dynamically by using spatial database retrieval technique 利用空間數據庫檢索技術,系統實現了三維管線圖的動態構建。
In this thesis , a detailed survey on 3d model retrieval techniques is given firstly , witch include feature extraction , similarity calculation , and database retrieval algorithms 本文首先對現有的3d模型檢索技術進行了全面的綜述,介紹了這些檢索技術的特征提取方法、相似度計算、數據庫檢索方法。
Lastly , a skeleton - based experiment system for image database retrieval is designed and implemented on the basis of the symmetry based object representation and recognition theories . the prospective result is shown 最后,在基于對稱性的目標描述和識別理論的基礎上,建立了一個基于骨架的圖象數據庫檢索的實驗系統,取得了預期的效果。
Through the analysis on the basic principles and steps of cross - database retrieval system , this paper probes theoretically into the factors of influencing the searching efficiency of cross - database system , and advances some improving measures 通過分析跨庫檢索系統的基本原理與步驟,從理論上探討了跨庫檢索系統檢索效率的影響因素,并提出了改進措施。
A basic problem , in such areas as image analysis , computer vision , automatic navigation , diagnosis based on medical image and image database retrieval , is the automatic segmentation , description and recognition of objects in image 圖像物體的分割、描述、特征提取和識別是圖像分析、計算機視覺、自動導航、基于醫療圖像的診斷以及圖像數據庫檢索等領域的一個核心問題。
Image database retrieval is a hot topic and has attracted increased attention from researchers . it includes several contents such as describing the image visual content ( extracting features ) , image database management , image matching and so on 圖像數據庫檢索是當今信息時代人們廣泛關注的熱點問題,主要包括對圖像內容的描述(特征表達及提取) 、圖像數據庫管理、圖像匹配等內容。
Consequently , the computational cost of the method is low . in addition , the methods presented by the dissertation can also be applied to character recognition , speech segmentation and recognition , obstacle avoidance for robot , image database retrieval and hiding 本文獲得的成果還可以用于字符的識別、語音分割與識別、機器人避碰、圖像數據庫的查詢與檢索以及計算機圖形學中圖形消隱與裁減等許多學科領域。
Today , medical information retrieval is developing into an entirely new type of multi - retrieval system . this thesis includes research on cd and international on - line database retrievals , search engines ( primarily medical search engines ) , and certain parts of chinese search engines with maps , blankets and examples being included 眾多的醫學信息用戶由于不熟悉各種醫學信息檢索系統的收錄范圍,沒有針對性地選取相應的檢索工具進行檢索,同時沒有掌握必要的檢索技術,這導致他們在查找信息的時候出現了事倍功半的情況。
Also , i provide the introduction of the various specialties of every kind of retrieval system . comparing cd - rom , international on - line databases , and internet retrieval systems while providing retrieval paths , their ability to support multi - database retrieval , and various other relevant aspects of information retrieval systems . chapter two : chapter two discusses research on medical information retrieval performed over the internet 介紹了各種檢索體系的特點、國內外有影響和常用的代表性的數據庫,最后對醫學計算機檢索系統的主要檢索技術進行介紹,并對光盤檢索、國際聯機檢索和網絡檢索從信息量、時差、費用、檢索途徑、是否支持同時進行多數據庫檢索等方面進行比較研究。
With the development and application of internet , information service organizations are confronted with both opportunities and challenges . establishing the full - text database retrieval system based on web has become a trend . against this background , the service system for military medical information is designed and constructed 隨著internet技術的發展和應用,信息服務機構遇到了巨大的機遇和挑戰,通過互聯網面向用戶提供高效、快捷、全方位的信息服務,是當前世界范圍內信息行業發展的新方向,軍事醫學信息服務系統就是在這種環境下開始研建的。