鱼眼相机相关概念
conical mirror 圓錐反射面
omnidirectional camera 可以在同一時間看到相機四周所有方向的物體 360度 視野
catadioptric image formation: using mirrors in combination with conventional imaging systems
反射折射成像系統: 傳統成像系統結合反射面的成像系統,這個反射面可以有很多種形式
Dioptrics is the science of refracting elements (lenses)
折射光學是一門關于 折射元器件的科學
catoptrics is the science of reflecting surfaces (mirrors)
反射光學是一門關于 反射面的科學(反光鏡)
catadioptrics = refracting elements + reflecting elements
A Unifying Theory for Central Panoramic Systems and Practical Implications
ECCV 2000
廣角相機模型方面的文獻
Omnidirectional or panoramic visual sensors : hemi-spherical field of view 具有半球視野的攝像頭傳感器
panoramic field of view 全景視野
central panoramic systems: a class of omnidirectional sensors 中心全景成像系統屬于廣角傳感器中的一種
central panoramic systems: all catadioptric systems with a unique effective viewpoint
Omnidirectional sensing 有兩種實現方式: dioptric or catadioptric systems 折射系統、反折射系統
Dioptric systems consist of fish-eye lenses 基于魚眼鏡頭的折射系統
catadioptric systems are combinations of mirrors and lenses 基于鏡面和鏡頭組合的反折射系統
mirror surface—parabolic, hyperbolic, elliptic, planar 反射面類型
appropriate lens—orthographic or perspective 鏡頭類型
Can We Consider Central Catadioptric Cameras and Fisheye Cameras within a Unified Imaging Model
ECCV 2004
常用的兩類 omnidirectional cameras: central catadioptric cameras 和 fisheye cameras
A catadioptric camera is an imaging device which combines a pinhole and a reflective mirror
反射相機=小孔相機+反射鏡面
A catadioptric camera with a single viewpoint is called central catadioptric camera
central catadioptric camera : 具有一個 viewpoint 的 反射相機
A fisheye camera is an imaging device which mounts a fisheye lens on a conventional camera
fisheye camera : 使用魚眼鏡頭的普通相機
普通相機成像遵循的是針孔相機模型,在成像過程中實際場景中的直線仍被投影為圖像平面上的直線。但是魚眼相機如果按照針孔相機模型成像的話,投影圖像會變得非常大,當相機視場角達到180°時,圖像甚至會變為無窮大。所以,魚眼相機的投影模型為了將盡可能大的場景投影到有限的圖像平面內,允許了相機畸變的存在。并且由于魚眼相機的徑向畸變非常嚴重,所以魚眼相機主要的是考慮徑向畸變,而忽略其余類型的畸變
作者:sylvester0510
來源:CSDN
原文:https://blog.csdn.net/u010128736/article/details/52864024
版權聲明:本文為博主原創文章,轉載請附上博文鏈接!
魚眼相機:如何將大場景視野投影到有限的圖像平面內
A Generic Camera Model and Calibration Method for Conventional, Wide-Angle, and Fish-Eye Lenses
pinhole camera fish-eye camera
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