In computer vision, sets of data acquired by sampling the same scene or object at different times, or from different perspectives, will be in different coordinate systems. Image registration is the process of transforming the different sets of data into one coordinate system. Registration is necessary in order to be able to compare or integrate the data obtained from different measurements. Image registration is the process of transforming the different sets of data into one coordinate system. To be precise it involves finding transformations that relate spatial information conveyed in one image to that in another or in physical space. Image registration is performed on a series of at least two images, where one of these images is the reference image to which all the others will be registered. The other images are referred to as target images.
An introduction to some of the key ideas in computer graphics is given. Modeling, 2D and 3D viewing,
transformations and related ideas from linear algebra are presented.
LwIP是瑞士計算機科學院(Swedish Institute of Computer Science)的AdamDunkels等開發的一套用于嵌入式系統的開放源代碼TCP/IP協議棧。LwIP的含義是Light Weight(輕型)IP協議。LwIP可以移植到操作系統上，也可以在無操作系統的情況下獨立運行。LwIP協議的基礎是在減少對硬件資源占用的前提下完成TCP/IP協議的主要功能
