點線變換 的英文怎麼說
中文拼音 [diǎnxiànbiànhuàn]
點線變換
英文
point curve transformation-
The fractional fourier transform is linear time - frequency transform, and it doesn ’ t have disadvantages of wigner - ville distribution. moreover, the precision of this method is higher, and the performance of antinoise is better
而分數階傅立葉變換是線性時頻變換，所以它不受交叉項的干擾，沒有不模糊區間減半的缺點，而且它的估計精度高、抗噪性能好。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。The effect of yield and grain protein content with soil water content and nitrogen ( or nitrogen and p2o5 ) was described by isopleth
用極差變換將產量和蛋白質含量理論值標準化，其標準值曲線的交點即為二者的最佳結合點。Using coordinate transformation method, the formula of imv on every point of image plane was deduced, and it included almost all motorial factors : the flight velocity of aircraft, roll, pitch, yaw, camera ' s scan and so on. thus, it is a precise formula, and it is also applied to frame cameras and push _ room cameras with array ccd
利用坐標系變換的方法可推出像面上各點的像移速度公式，該公式包含了幾乎所有的運動因素：飛機的前向飛行、飛機的姿態角變化、相機自身的擺掃運動等等，是精確的像移速度公式。本公式同樣適用於畫幅式航空相機和線陣ccd推掃型航空相機。A new fractal - based infrared image feature extraction method is presented and the detailed theoretic analysis and implement procedure of this algorithm is submitted and tested in some experiments. with the limitation of the line detection based on traditional hough transform that the information of the length and the end points of the line is unavailable, a new algorithm which makes use of the accessional strategy based on precognition information is put forward to meet the demand for more information of the line, simulation results show this method is effective. finally, the whole process of airport target recognition is presented and the result images are also given
使用分形方法提取目標的特徵，在知識指導下，提出了一種基於目標特徵模型的降維的形態學分形維數計算方法，對傳統分形方法進行了改進，從理論上推證了演算法的合理性，並對演算法進行了模擬分析；針對傳統hough變換無法獲得線段端點和長度信息的局限性，提出了一種基於目標特徵先驗知識的hough變換融合策略，通過引入目標先驗知識，可以有效地獲得直線信息；對信息多而復雜的機場目標採用基於知識的目標識別方法，使用置信度模摘要型實現不確定推理，對目標進行識別判斷，將知識貫穿于整個識別過程中，對目標進行了有效地識別。The algorithms estimate the doa of the broadband distributed source fron the secondary diagonal elements of the covariance matrices generated from every frequency domain of the received broadband signals, thus avoiding unwrapping of phases
該類演算法首先將陣列接收的寬帶信號變換到頻率域，然後對于每個頻率形成陣列接收信號協方差陣，最後由該協方差陣的次對角線元素估計寬帶分佈源的到達角，其主要特點是避免了相位展開。Considering the shape of quantum - wires, the modal x - ray diffraction of trapeze quantum - wire is established. the relationship between fourier transforms quantum wires shape and x - ray diffraction is presented to obtain the more exact info of parameters. so the fundamental characteristics of x - ray diffraction for quantum wire array are investigated
考慮到量于線的形狀，建立了梯形量子線的x射線衍射模型，得出量子線的形狀與x射線衍射之間互為傅立葉變換的關系，從模擬的結果得到更為精確的參數信息，從理論上認識了量于線陣列的x射線衍射的最基本特點。Eaer to operate operate put the dress material on the machinestart pedal it can complete with nease change the lnob positon at the right side of the machine head it will realiz the change of stitch both upper and down adopting design of bearded needle it is unnecessary to thread the needle hat put the thread in the bearded needle feeding material in same step both upper and down sewing becomes moreasy cloth material wont be creased length of stitch distance will keep same wide working platform it is cibvebuebt abd flexible when sewing
操作簡便，操作員把衣料放在機器上，啟動踏板即可輕松完成，變換機頭右側旋轉轉鈕的位置，即實現上下珠點的變換，採用鉤針設計，無需穿線線，將線置於鉤針即可，上下同步送料，縫制更輕松，布料不會起皺，針距長短保持一致，寬闊的工作平臺，使縫紉時更方便靈活。A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived
對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。Based on hough transform, a new straight lines tracking method is presented. rather than tracks straight lines in image space directly, the given method makes use of duality theory in hough transform in order to transform line tracking in image space into point - tracking in hough space
其次本文提出了一種基於hough變換的直線跟蹤新方法，該方法利用hough變換中的點線對偶性原理，將在圖像空間中對直線的跟蹤轉化為在參數空間中對點的跟蹤。First, the paper introduces the basic knowledge of the image processing technique, emphasizes the image processing method that is used in the measur - ement system, such as edge detection operator, curve fitting algorithm, espe - cially hough change in detail, etc. second, the paper introduces the vc + + 6. 0 program language, analyses its peculiarity and advantage, explains the form of the image in the computer and dib visiting functions
首先，介紹了圖像處理方法的基礎知識，特別重點講述了在本系統中將會應用到的一些圖像處理方法，如邊緣檢測運算元、曲線擬合演算法等等，尤其是對于哈夫變換的方法，進行了詳細闡述。其次，介紹了本系統所應用的編程語言vc + + 6 . 0 ，分析了其特點和優點，並說明了模擬圖像數字化后，在計算機里的存儲格式以及相應的設備無關位圖訪問函數。A integrated algorithm of ambiguity resolution is proposed. by using triple carrier phase, integer gauss transformations, qr factorization, cholesky factorization, and geometry constraint, the correlation between ambiguity components is reduced, and more error ambiguity can be discarded, also process of ambiguity searching getting rapidly. the ratio test combining constraint of baseline is used to fix ambiguity rapidly
利用三差最小二乘求解模糊度浮點解，然後採用整數高斯變換降低模糊度分量間的相關性，再根據qr分解和基線幾何約束減少需搜索的模糊度組合，採用cholesky分解在搜索過程中及早淘汰不正確的模糊度組合，最後利用ratio檢驗與基線幾何約束條件相結合檢驗模糊度組合，盡快固定正確的模糊度。This paper discussed the coordinate transformation method of wgs84 coordinate system to 1954 - beijing gauss grid coordinate. introduced transformation model of wgs84 to beijing 54 and computing method of transformation parameter. according to different model and computing method, computed and compared with the result combine real data
本文詳細討論了wgs84大地坐標轉換到北京54坐標系下的高斯平面坐標的方法，重點介紹了wgs84和北京54的空間直角坐標的轉換模型及轉換參數的計算方法，並根據不同的模型和計算方法結合實際數據進行計算和結果的比較，認為採用基線向量求解的四參數模型具有較高的轉換精度，分區變換和提高控制點精度也能提高轉換的精度。By taking advantages of epipolar line features and depth discontinuities in reference 中國科學院 軟件 研究所 博士 學位 論文 基于 圖 象 的 快速 繪制 技術 的 研究 images ， an efficient inverse wmping algorithm is pfoposed in chapter 3 for gcnerating nagcs of novel views by combining multiple eference images 帆 enhm different vie 呷 oints because continuous segnents determi 。 d by pairs ofedge pixels at co 。 spending epipolar lines are order kept ， only pairs of edge pixels in the reference 渝 明 e e necess 叨 口 cowute to obtain generalized disparity of all points in the desired image as a result ， sighficant acceleraion could be made in the endering pfo 比 鴕 two accelerating techiq 此 s e presented in this algori 山 mb accelerate the hole illing process his algorithm extends the reference images rom projection of single col ： ii ’ ected surface in previously developed nvnverse w 出 下 er to ima 驢 s captured rom complex scene in chapter 4 ， an 《 dent ibr method is prese 庇 仙 y takn ull 訕 antage of 呷 bies c 咖 the method can simulate the 3d details on sllri ： ace of object successfully he 。 叩 proach ， called rered ature mopmp consists of two pans at fst ， an origi 。 ltexture with orthogonal displacements per pixel is deco 啊 osed into a series of new t6 刀 mfcs with each 他 lug a given displacement per pixel ， called ae ， ea atures ， or lt hen hese lt e used to render the novel view by conventional texture mapping d avoid gaps n the endered hlla 驢 ， some phels are to be interpolated nd extended in the 廠 kaccoding to the depth differe eee between two neighbor pixels in the original texture as these ltlt fc … e much storage nd therefore much time is equired to install ltlt into the text ’ ufc buffec an 舊 thod is pfoposed to co 呷 fcss the ltlt ， nd the cottcspondingfclldering method is given experimental esults show that the new method is efficient ， especially n rendering those objects with a smaller depth rnge compared withtheir size ， such as relief surfaces of building
與己有的三維變換方法相比較，該方法不但成功地填補了由於投影區域擴張而產生的第一類空洞，而且成功地填補了由於空間深度非連續物體相互遮擋而產生的第二類空洞，從而方便地實現了虛擬環境中的漫遊；基於物體表面深度的連續性，本文提出了一個位移預測方法? ?此方法可以從單幅參考圖象獲得逆映射過程中所需要的目標圖象的位移信息，從而大大提高了演算法的效率：與通常的正向映射演算法相比，此演算法克服了多幅參考圖象所帶來的計算量成倍增長等問題，而且誤差較小。 2 ）基於極線幾何的快速逆映射演算法。利用參考圖象的邊界信息與隱含的遮擋關系，以及極線幾何的性質，本文第三章提出了一個基於極線幾何的快速3 『一中國科學院軟體研究所博士學位論文基於圖象的快速繪制技術的研究逆映射演算法，從多幅參考圖象精確合成當前視點目標圖象。The ctm is suitable for the case that all e - type influentially uncontrollable subnets are state graphs, and the outstanding virtue is that the designed controller is explicit. the emm is suitable for the case that all f - type influentially uncontrollable subnets are normalized cascade petri nets, and the advantage is that control patterns can be on - line computed within polynomial times
約束變換法適用於所有e -型影響不可控子網為狀態圖這種特殊的場合，用該方法所綜合的控制器最大的優點在於所董利達:浙江大學博士論文獲得的控制器是顯式的;特徵標識法適用於所有凡型影響不可控子網為規范化序狀petri網這種場合，用該方法設計的控制器在線運算工作量是多項式可解的。With the color and luminance difference of wheat field and outside the field, the position of field edge and the candidate points of it could be detected ; the slope of the field - edge was calculated by using passing a known point hough transform
根據麥田和田外區域的不同顏色及亮度特徵，判斷出田埂的位置以及田埂線的方向候補點群，使用過已知點的哈夫變換計算出田埂線的斜率。At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。Combining the principles of pipelining and parallelism of dsp with idct theory, we concentrate on the use of multiply - accumulate unit of mcf5272 by merging the operations of addition and multiplication, and realize two dimension of idct with one dimension of idct efficiently. testing shows the software meets the requirement of real - time decoder
重點結合mcf5272的流水線操作和并行操作特徵和反離散餘弦變換演算法原理，將的二維反離散餘弦變換轉換成8點的一維反離散餘弦變換，利用乘法累加器合併加法運算和乘法運算高效快速地實現了反離散餘弦變換演算法。The key process of the algorithm, called nodes transforming to arcs, is based on the calculation loads of coupling nodes and arcs loads from the loads of switch nodes. getting the area of coupling nodes is the most important process in nodes transforming to arcs. this paper presents a new method ， which uses the adjacency matrix of distribution network and the information matrix of
變結構耗散網路是一種新的配電網自動化演算法，由配電網開關頂點負荷求弧負荷和耦合頂點負荷的點弧變換是整個演算法中確定配電網饋線故障區域的基礎，而進行點弧變換的關鍵就在於分離耦合點區域。Combined with the practical situiation in distribution network, it ' s suitable to select graph algorithm as the theoretical algorithm base. based on structure variable dissipated network theory, this thesis detailedly discusses the transforms of base - to - shape, shape - to - base, vertex - to - arc, arc - to - vertex, over - heated arc dectection, load allotting, load balancing and optimum restoration
本論文基於變結構耗散網路理論，詳細討論了基形變換、形基變換、點弧變換、弧點變換、過熱弧搜尋、負荷分配、負荷均衡化以及優化恢復非故障停電區域供電等一系列與饋線自動化功能相關的處理演算法。分享友人