imaging methods 中文意思是什麼
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Based on projective geometry, the research works about 3d invariance ' s extraction and application have been done in this thesis as following : ( 1 ) the basic theories and concepts in projective geometry are systematically summarized. it includes : the camera models of perspective imaging, projective collineation, cross ratio, a simple compare about invariance ( invariant ) among some geometry transformations, fundamental matrix, epipolar and epipolar line in epipolar geometry, and so on. ( 2 ) the calculation methods for 2d projective transformation are extended from points to multi - element, which includes points, lines, points lines and so on, to get the relationship between two projective planes
基於射影幾何理論，論文圍繞3d不變特徵的提取和應用進行了如下的研究工作： （ 1 ）系統總結了射影幾何中的若干基礎概念，包括：透視成像的相機模型、射影對應、交比不變量、基於不同幾何變換下的不變量的簡單對比、對極幾何中的基礎矩陣、對極點、對極線等。 -
Cognitive psychophysiology and non - invasive imaging methods of cerebral function
認知心理生理學與無創性腦功能成像技術 -
Experimental results show the obvious advantage and robustness of our methods. in this thesis, we study the algorithm of holographic stereogram display that can be implemented using cgh. we discuss the imaging process through capturing sequence parallax images, illuminating hologram by a plane wave creates the volume effect in the observer ' s eyes
對基於計算機的三維全息成像中的光柵編、解碼理論進行了研究，在此基礎上，將小波變換方法應用到全息顯示中，建立新的變換模式下的光柵編、解碼演算法，計算中採用小波包分解方法，使全息條紋的計算更加快速、便捷。 -
Design the system of detection and data acquisition and transmission of compton back - scattering imaging scanner, provide some important indexes and methods that are used to assess this system
介紹了閃爍計數管探測器的工作原理。提出了考核該系統性能的重要指標及考核的具體方法。 -
The special relationship among signal bandwidth, center frequency and imaging squint angle in the range - doppler imaging algorithm and other methods is also presented in the chapter 3
本章通過分析提出了距離多普勒等成像方法中信號帶寬、工作頻率和成像斜角之間存在的特定關系。 -
Electronic imaging - guidance for selection of document image compression methods
電子成像文件圖像壓縮方法選擇指南 -
Three imaging methods are introduced : range - doppler imaging, projection tomography imaging, polar - doppler imaging. several interpolation methods are introduced, and their simulation results are compared, and cubic spline interpolation is proved to be the best
介紹了最基本的三種成像方法：直角坐標距離-多普勒成像、投影層析成像和極坐標距離-多普勒成像。 -
The paper overviews the history of moving targets detection and imaging based on sar, the methods based on doppler filtering, doppler rate filtering, parameter estimation and multichannel sar imaging are discussed in detail. the paper focuses on the two methods used in spaceborne sar which are displaced phase center antenna and along - track interferometric
論文回顧了合成孔徑雷達檢測與成像運動目標的發展歷史，詳細地論述了基於多普勒濾波、基於多普勒速率濾波、基於參數估計以及基於多通道sar的運動目標檢測與成像方法。 -
This dissertation mainly researches the displaced phase center antenna ( dpca ) technique in the new system, and the contributions are calculated as following : 1. the doppler history is analyzed for the spaceborne bistatic sar, doppler center frequency and doppler fm rate computational methods are studied. summing up is done for the methods of moving target detection and imaging
本文完成的主要工作有: 1 .分析慢速運動目標信號特徵以及運動目標對sar成像的影響（多普勒中心頻率，多普勒斜率以及距離徙動誤差） ，總結了目前sar運動目標檢測與成像的主要方法。 -
Based on the analysis of imaging methods of espi, this paper also analyzes the factors that affect precision of measurement
在對電子散斑測量的各種方式的分析基礎上，分析了影響測量精度的主要因素。 -
According to characteristics of the seismic data from the low snr region with complex surface, this paper is started from solving the static correction problem and reasonable eliminating all kinds of disturbance in the seismic data from the low snr region with complex surface. through the whole process of seismic data processing which includes a series of processing methods that are suitable for the low snr region, namely, from the choosing of the floating base - level, the static correction in the field and indoors, the eliminating of all kinds of noise before and after stacking, the velocity analysis with high - resolution, the reasonable techniques of deconvolution before stacking and wavelet processing after stacking, to the method choosing of the high - resolution stacking and the reasonable and accurate offset imaging, a set of the complete and effective flow for processing seismic data from the low snr region with complex surface are finally formed, which can meet the need of explo
本文針對復雜地表低信噪比地區地震資料的特點，以解決復雜地表低信噪比地區地震資料靜校正問題及合理剔除各類干擾為出發點，在整個地震資料處理過程中，從浮動基準面的選取、野外及室內靜校正、疊前疊后各類噪音的去除、高精度速度分析、合理的疊前反褶積及疊后子波處理技術、到選用高精度的疊加技術及合理準確的偏移成像方法等一系列適合於復雜地表低信噪比地區的處理方法，最終形成一套較完整且有效的針對復雜地表低信噪比地區地震資料的處理流程。 -
Secondly, the imaging mode and ranging methods of the imaging ladar are analyzed in detail, and the proposed research project of high - speed 3d - imaging ladar is explained
在詳細研究成像激光雷達的測距體制和成像方式的基礎上，提出了一種高速三維成像激光雷達的研究方案。 -
The related theory and critical technology of ladar, the imaging mode and ranging methods of imaging ladar have been discussed in detail in this dissertation. then a research project of high - speed 3d - imaging ladar using a laser diode has been proposed, and the primary and critical problems of the theory and technology of the project have been discussed. a ladar prototype has been manufactured successfully, with which lots of systematic experiments have been carried out
論文系統研究了激光雷達的相關理論和關鍵技術，詳細討論了成像激光雷達的測距體制和成像方式，在此基礎上提出了一種採用半導體激光器的高速三維成像激光雷達研究方案，全面分析了該方案的主要理論問題和關鍵技術問題，並成功研製出了實驗室樣機，利用樣機進行了大量的系統實驗。 -
Abstract : in the field of optical wireless links, concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators. hemispherical concentrators are studied by ray tracing, then for several normal nonimaging concentrators : hemispherical concentrators, compound parabolic concentrators ( cpc ), dielectric totally internally reflecting concentrators ( dtirc ), simultaneous multiple surfaces concentrators ( sms ) and inhomogeneous media concentrators ( poisson bracket ), the design methods and the performances e. g. the gain and the field of view ( fov ) are compared as well as the application suggestion
文摘:在無線光通信領域，利用非成像光學設計的集中器能夠聚集光輻射能量，而且相對于成像性集中器具有更緊湊的結構和更高的增益.利用光線追跡法對半球形集中器的性質進行了分析與研究.對好幾種非成像集中器:半球形集中器，復合拋物線形集中器，介質內部全反射集中器，多表面集中器，多相介質集中器，從設計原理、增益和視場進行比較，並分析其應用場合 -
In 58 patients with indeterminate hepatic lesions demonstrated with at least 2 imaging methods ( ultrasound / computed tomography / magnetic resonance imaging ), ultrasound - guided liver biopsy revealed hemangioma
在58個病人中，至少兩種影像學方法（超聲/ ct / mri ）均表明其存在不確定的肝臟病變，而超聲引導的肝穿刺活檢證實為肝血管瘤。 -
Finally, near - field microwave imaging methods are studied. combining near - field measurement and target geometrical shape, a new near - field microwave imaging approach by plane - wave spectrum is produced. synthetic plane - wave technique and near - field imaging is studied, simulation results of this approach are given
把近場散射測量和目標幾何外形相結合，提出了利用平面波譜展開進行近場微波成像的新方法；對綜合平面波技術和近場微波成像作了研究，並對這一成像方法作了模擬。 -
Discovery of the immune synapse and its ongoing exploration has been made possible by new high - resolution microscopy techniques and computer enhancement of older imaging methods
新的高解析顯微技術以及經過電腦強化的舊顯影技術，促成了免疫突觸的發現以及持續進行的研究探索。 -
Differentiation of small and atypical hemangiomas from other hepatic masses using imaging methods can be difficult, especially in patients with underlying malignant disease
利用影像學方法來鑒別小的不典型肝血管瘤與其它肝臟腫塊是很困難的，尤其是在一些本身存在潛在的惡性疾病的病人。 -
Multi - detector row computed tomography ( ct ) offers important advantages over conventional imaging methods in the evaluation of the portal venous vasculature because of faster scanning and thinner collimation
在臨床上，醫師事先能確認病人之門靜脈血行狀況及側枝靜脈圖譜，對于治療計畫之擬定有極大的幫助。 -
In addition they apply through wall imaging methods
另外，他們用了穿透墻的成像方法。
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