warped model 中文意思是什麼
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In the application of mini - micro - robot visual perception, there is a need for fish - eye lenses for capturing wide field of view for navigation. though fish - eye lenses provide a wide field of view ( 180 ), they introduce significant distortion in images and the acquired images are quite warped, which makes conventional camera calibration algorithms no longer work well. this paper presents an accurate calibration framework for fish - eye lens ( a high distortion lens ) camera stereo vision system. the accurate calibration model is formulated with radial distortion, decentering distortion and thin prism distortion based on the fisheye deformation model. using fish - eye and non - linear camera model, the author employs levenberg - marquardt method to realize precise non - linear calibration for wide - view - scene dense depth image recovery
魚眼鏡頭成像立體視覺系統在微小型機器人視覺導航和近距離大視場物體識別與定位中有著廣泛的應用.盡管魚眼鏡頭攝像機具有很大的視場角（接近180 ） ，但同時也引入嚴重的圖像變形，常規的攝像機標定方法無法使用.該文提出一種標定魚眼鏡頭攝像機立體視覺系統的方法.在魚眼鏡頭變形模型的基礎上，通過考慮魚眼鏡頭成像的徑向變形、偏心變形和薄棱鏡變形，建立了魚眼鏡頭成像的精確成像模型，然後，利用非線性迭代演算法，精確求解攝像機外部參數、內部參數.實驗表明，使用該方法得到的立體視覺系統參數滿足精確恢復大場景稠密深度圖的要求 -
This paper proposes a new algorithm, called edge - based texture driven shape model e - tdsm, for non - frontal face alignment task. first, the texture is defined as the un - warped edge image contained in the shape rectangle ; then, a bayesian network is constructed to describe the relationship between the shape and texture models ; finally, expectation - maximization approach is utilized to infer the optimal texture and position parameters from the observed shape and texture information
姿態的變化使得人臉形狀的分佈變得非常復雜，特別是側臉圖像，由於自遮擋的原因，採用單一的模型有時候很難表達人臉形狀的分佈同時，再加上光照的變化，一方面使得人臉輪廓容易和背景混淆，另一方面有可能會在人臉上形成偽邊界，使得輪廓線被錯誤地定位到這些偽邊界線上。 -
By model experimentation of 14 high - strength concrete frame columns subjected to axial eccentric compression, shear and humdrum torque, of 9 high - strength concrete and 3 high - performance concrete frame columns subjected to biaxial eccentric compression, shear and reversed torque, the behavior of high - strength concrete frame column in warped section are studied the first time, and the mechanism of torsion bearing capacity of high - strength concrete frame column are discussed
通過14根承受單向壓、彎、剪，單調扭矩復合作用的高強鋼筋混凝土構件和9根高強混凝土、 3根高性能混凝土框架柱在雙向壓彎剪反復扭矩復合作用的模型試驗研究，首次研究了高強混凝土框架柱在翹曲截面上的受力行為，探討了高強混凝土框架柱抗扭性能的受力機理。
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