Related technologies of three-dimensional panorama

Three-dimensional panoramic technology is a rapidly developing and gradually popular branch of virtual reality, which can be widely used in network three-dimensional business and network virtual teaching field. Traditional three-dimensional technology and network three-dimensional technology represented by vrml all use computer-generated images to build three-dimensional models, while three-dimensional panoramic technology uses real photos to build virtual environment, and it is more simple and practical to complete the creation of virtual reality according to the mode of photo shooting → digitization → image mosaic → scene generation.

Three-dimensional panoramic technology and its application

Panorama, also known as panoramic photography or virtual reality, is a virtual reality technology based on static images. A group of photos taken by the camera ring at 360 degrees are spliced into panoramic images, which are displayed on the Internet with special playback software. Users can control the direction of looking around with the mouse, and can watch objects or scenes from left to right and from near to far.

Three-dimensional panoramic technology is a desktop virtual reality technology, not a real 3d graphics technology. Three-dimensional panoramic technology has the following characteristics: first, it is shot on the spot, which has photo-level realism and is a three-dimensional display of real scenes. Second, it has certain interactivity. Users can choose their own perspective through the mouse, zoom in and out at will, and look around, look down and look up as if they were there. Third, there is no need to download a plug-in and a java applet separately. After automatic download, you can watch panoramic photos online, or you can watch them directly with Aauto Quicker player. Moreover, the panoramic image file adopts advanced image compression and restoration algorithm, and the file is small, generally only 100 ~ 150 K, which is beneficial to network transmission. What can present this scene more completely than a photo of Zhang Quanjing? In the digital age, we no longer need professional panoramic film cameras. We can take beautiful panoramic photos only through ordinary digital cameras or even mobile phones, which undoubtedly brings new photography fun to more users.

6 strokes to take panoramic photos

Panoramic photography seems profound, in fact, for ordinary users, it can be easily done as long as they master certain skills. Simply put, taking panoramic photos means fixing the camera at a certain point, rotating the camera around this point in the plane, thus changing the camera's shooting angle, taking images in sections continuously, and finally stitching the photos together to form a complete panoramic photo. We can basically divide the whole shooting process into six links, and each link is indispensable.

Scene selection

The first thing to say is that taking panoramic photos cannot be blind, and it is not suitable for all occasions. It should be said that most panoramic photos will choose the scene as the theme, from which we can also analyze several major elements of scene selection. An open big scene is a must. The greatest charm of panoramic photos is to highlight the openness of the scene. At the same time, the shooting scene should have a three-dimensional sense. If they are all on the same plane, the shooting effect is usually not very good. Also, try to avoid shooting moving objects. Especially, there should be no moving objects in the splicing area of adjacent pictures, otherwise it will be easy to splice.

fixed-point

Fixing the camera position is very important for taking panoramic photos.