畸變點 的英文怎麼說
中文拼音 [jībiàndiǎn]
畸變點
英文
distortion point-
A camera calibration method with co - line points is proposed, in which distortion center is located according to cross ratio invariability, and then distortion coefficients are calculated based on a line ' s central projection is a line
摘要提出一種用共線點列標定攝像機鏡頭畸變參數的方法,先根據交叉比不變性確定畸變中心,再利用直線的中心投影仍為直線這一性質確定畸變系數。The mean crystallite size and microstrain of u3o8 in different temperature were also discussed in the paper
文中利用fwhm的變化對材料中的微晶尺寸和點陣畸變進行了一定的分析。Image coordinate and galvanometer pendular angle are kept in the computer according to the f9 field lens characteristic, enter pupil excursion and f6 characteristic error are ignored, that the image of laser scanning point move acceding to unlinearity relation is deduced theoretically. for deducing the distortion, error compensation is considered in the software
像點坐標與振鏡擺角按f物鏡特性的線性關系存儲在計算機,在忽略了入瞳漂移和f特性誤差后,從理論上推導出二維垂直振鏡分佈中激光束掃描點的像點按照復雜的非線性關系運動,為了減少幾何畸變,在軟體設計中給出誤差補償。The disturbed state and the saturation state can form bistable state at saturation point
在飽和點可以形成畸變態和飽和態的雙穩態。Dbw, sbw series single - phase and three - phase super power voltage regultor of new age having the advantages of large capacity, high efficiency, wide range, high precision, strong protection, without wave - form distortion, reliadle operation and casy installation, etc
Sbw系列單、三相大功率電力穩壓器是我公司在參數照國際同類產品、結合我國國性的基礎上研製生產的新一代節能電力穩壓器,具有容量大、效率高、穩壓范圍寬、精度高、保護功能強、無波形畸變、運行可靠、維護簡便等特點。This produces soft spots, and in some cases, severe unpredicted distor ? tion
這樣一來就就有軟點產生,有時,甚至會產生無法預料的嚴重畸變。Output voltage and current is often distorted in half bridge converter because voltage unbalance of input capacitors though its application is very abroad
摘要半橋逆變器應用廣泛,但存在直流分壓電容不均壓,使分壓電容中點電壓漂移,導致輸出電壓和電流畸變的缺點。The theoretical research, computer simulation and experimental results analysis show that maskless laser interferometric lithography and holographic lithography have the characteristics of large field of view, high resolution, distortionless, relatively simple system structure, low costs and convenient realization way. they have a broad application prospect
激光干涉光刻技術研究四川大學博士學位論文理論研究、計算模擬和實驗結果分析表明,無掩模激光干涉光刻和全息光刻具有大視場、高解析度、無畸變、系統相對簡單、成本較低,實現方便等特點,具有廣闊的應用前景。Besides, the gauss interpolation function and the domain of support which includes much more nodal information than finite element method does is used to make meshless method much more earlier solve the large deformation and distortion and describe the local characteristic ( such as stress locality et al. ) more facilely
並由於在無網格法中採用了高次插值函數和包含有較多節點的支持域(在有限元法中的支持域只包含單元節點) ,從而使得無網格法能方便地處理變形畸變和應力應變局部化等問題。Moreover, the higher harmonic order is, the lower distinguishability, and, as a result, the assessment accuracy becomes bad. considered its prominent localization both in time - domain and in frequency - domain, wavelet is used to the field of assessing harmonic impedance for the first time. we choose chaari wavelet because of its special band frequency characteristic, which can stratify signals synchronously and locate the distortion time precisely in assessing harmonic impedance
選取chaari小波為母小波,利用其特殊的帶通特性,對在公共連接點( pcc )采樣得到的電壓,電流畸變波形進行同步分層, 「突出」信號的畸變部分,提高了被分析信號的「信噪比」 ,以利於諧波阻抗估計準確度的提高。Advantages, disadvantages and limits of arm are thoroughly examined using signal processing methods. based on the above, incoherent and coherent two - point - source decoy methods and modified coherent two - point - source decoy methods to deflect arm are brought forward. arm ’ s homing heads are generally of mono - pulse structure, so coherent two - point - source ’ s interference resembles that to mono - pulse radar except that interference to radar belongs to far field scope, but interference to arm varies from far field to near field because relative distance drastically changes between the homing head and the two - point - source with missile ’ s homing head continually approaching the target
Arm的導引頭一般為單脈沖體制,因此,相干兩點源對導引頭的干擾類同於對單脈沖雷達的干擾,不同的是:對雷達的干擾都是遠場,而導引頭隨著導彈不斷接近目標,兩點源與導引頭的相對位置發生劇烈變化,由遠場變化到近場;導引頭天線口面上的合成場也發生了大的變化,相位波前的畸變產生干擾,這就是相干兩點源誘偏的基本思想。The temperature dependences on the resistance in all the thin films show that in the low temperature range the width of eg band level changes the transports, but in the high temperature range the thin films forms the small polarons hopping conductivity. the phase transition induced by the current is explained by the demagnetization and lattice distortion
在高溫部分,材料呈現小極化子跳躍形式輸運特徵;實驗研究了不同偏置電流對薄膜的相變影響,表明電場可以引起材料中磁性的變化和晶格畸變,導致相變溫度點向低溫方向移動;材料的光致相變研究表明光子能量、光強和極化方向對輸運性質有影響。Furthermore, the range of measurement of it was pointed out. all the analysis shows that our crsi 1il can be used to measure the spatial mid and low frequency wavefront distortion. 5. based on our crsi and algorithm, the phase modulation characteristic of an lcslm was measured
五、利用環路徑向剪切干涉儀共光路、雙光束干涉的特點,全場準確測量了液晶空間光調制器的位相調制特性,並且利用它的位相調制特性實現了臺階位相板畸變波前的補償,由此證明了液晶空間光調制器可用於控制波前畸變。Camera lens distortion calibration with co - line points
用共線點列標定攝像機鏡頭畸變In view of the altitude problems of inspecting the weighted average ways of obtaining altitude and the advantages and disadvantages of moving surface interpolation method are talked about through comparison, with which the writer draws a conclusion that moving surface interpolation method is suitable to be applied for the dynamic state inspection places, moreover the key technology about the dynamic slate inspection is also taken into consideration, which includes digital camera and types of camera lens, the cause of camera lens distortion and the fundamental determining principle, the gain of image coordinate and the realization of time synchronization
針對檢定點高程問題,分析比較了獲取高程的加權平均法和移動曲而內插法的優缺點,得出移動曲面內插法適合用於動態檢定場的結論。特別是針對動態檢定的關鍵技術給予了相關研究,內容涉及:數碼相機及相機鏡頭的選型,相機畸變差產生原因及測定的基本原理,像片坐標獲取以及時間同步實現,得出結論:利用gpsoem板的秒脈沖( 1pps )輸出特性,能夠實現兩臺數碼相機與gps接收機時間同步,滿足動態檢定指標要求。2, the optimal designed digital matched spatial filter ( dmsf ) was used to perform real - time optical correlation, which not only has the merit of large storage and renewability as well as common digital filter, but also has the virtue of high correlation s / n which the holographic optical filer owns
2 、優化設計的數字空間匹配濾波器,既有數字濾波器的大存儲容量並可實時刷新的特點,又有全息光學濾波器高相關s n的優點。對于處于嚴重背景噪聲干擾下的多個畸變目標,也可獲得高相關s n 。At the same time, image distortion is corrected by polynomial to handle expediently and the method of selecting reference points and the factor of influencing precision is discussed
為了提高測量的易用性,標定過程中採用多項式來校正圖像的畸變,並討論了控制點的選取方法和影響標定精度的因素。More attentions are taken to the applications of the interferometer for the quantificational and real - time measurements in the following aspects : the laser ' s wavefront, the homogeneity of laser bar, angle deviation of flatness optical components, and surface roughness
重點研究了數字式波面干涉儀的應用,定量、實時測量了激光波前質量、激光棒波前畸變、利用波面計算錐體棱鏡角度、表面粗糙度等。The characteristics of three - level ( tl ) converter and its effect to the zero - crossing distortion are analyzed, and extended it to ml converters, which are suitable for the high input frequency pfc application
文章詳細分析了三電平( three - level , tl )變換器的特點和對輸入電流過零畸變的改善作用,並推廣至多電平變換器。Based on analyzing the features o f low frequency phase noise of laser beam, rms of phase gradient was introduced to characterize it and the corresponding wavefront model was constructed by usin g random phase screen
在分析強激光束低頻位相噪聲特點的基礎上,採用位相均方根梯度表徵激光束的低頻位相噪聲並結合隨機位相屏構建相應的畸變波前模型。分享友人