Spherical image processing method and device and server
An image processing and image technology, applied in the field of image processing, can solve problems such as affecting the experience, failing to achieve visual effects, and too fast movement of the perspective content
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example 1
[0133] Example 1. The spherical image uses the pixel coordinates in ERP format to represent pixels. ERP is a two-dimensional panoramic image that can be used for storage and transmission obtained by uniform sampling and mapping of spherical signals according to longitude and latitude. The pixel coordinates of this image can be represented by latitude and longitude. , the width direction can be represented by longitude and the span is 360°, and the height direction can be represented by latitude and the span is 180°. After the viewpoint is offset from the center of the sphere, the server performs pixel coordinate mapping on the obtained spherical image.
[0134] Assuming any point (m, n) in the ERP format image, where m is the coordinate of the image along the horizontal direction, and n is the coordinate of the image along the vertical direction, according to the mapping formula between the latitude and longitude image point and the spherical latitude and longitude, the corresp...
example 2
[0143] In Example 2, the spherical image uses pixel coordinates in the CMP format to represent pixels, and the server performs pixel coordinate mapping on the obtained spherical image after the viewpoint is shifted from the center of the sphere. Take a mapping surface in CMP format (the surface in the negative axis direction of the x-axis, that is, the front view surface) as an example, assuming any point (m, n) on the front view surface in the CMP format image, where m is the coordinate of the image along the horizontal direction, n is the coordinate of the image along the vertical direction, according to the mapping formula between the image point on the front view of CMP and the coordinate point on the spherical surface, the coordinate point V of the corresponding spherical coordinate point can be obtained 1 (x 1 ,y 1 ,z 1 ) values:
[0144]
[0145] in W 1 is the width of the CMP front view image, H 1 is the height of the CMP front view image, ε 0 It is a consta...
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