World's first photograph in 1826 were taken using a pinhole camera, known as camera obscura. The camera obscura, the basic projection model of pinhole cameras, has been known in China more than 2500 years ago. For example, in photogrammetry, cameras mounted on aircraft or satellites, and the flow continues to the image data can also be made to take images just line by line, one line at a time. The development of alternative camera architectures results in a need to understand the projective geometry associated to aim the camera calibration, binocular stereo, static or dynamic scene understanding.