A Pixel Equalization Method in Spherical Panoramic Image/Video
A technology of panoramic image and equalization method, applied in image communication, TV, color TV, etc., can solve problems such as uneven distribution of pixels, achieve the effect of improving viewing quality and user experience
Active Publication Date: 2020-03-27
央视国际网络无锡有限公司
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[0006] In view of the above problems, the present invention aims to provide a pixel equalization method in spherical panoramic images / videos, which effectively solves the problem of uneven distribution of pixels in spherical panoramic images / videos
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[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.
[0045] Such as Figure 4 Shown is a schematic flowchart of a method for equalizing pixels in a spherical panoramic image / video provided by the present invention, which is used to solve the problem of unbalanced pixels in the spherical panoramic image / video. As can be seen from the figure, the pixel equalization method includes:
[0046] S1 obtains the pixel value of each point in the spherical panoramic image / video in the Euclidean coordinate system;
[0047] S2 stores the pixel...
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The invention provides a method for balancing pixels in a spherical panoramic image / video, and relates to the technical field of video playing. The method comprises the following steps: S1, acquiringa pixel value of each point in the spherical panoramic image / video under an Euclid coordinate system; S3, storing the pixel value of each point in the spherical panoramic image / video into a rectangular plane; S3, building a coordinate system of the rectangular plane, and acquiring a spherical coordinate corresponding to each pixel point in the spherical panoramic image / video according to each pixel point in the rectangular plane; and S4, performing Euclid coordinate system transformation on the spherical coordinate of each pixel point, and transforming the spherical coordinate to a corresponding latitude angle in the spherical surface according to a preset rule and lines of each pixel points in the rectangular plane. Through adoption of the method, the pixel balance of the spherical panoramic image / video is realized; the viewing equality of the spherical panoramic video is improved; and the user experience is improved.
Description
technical field [0001] The invention relates to the technical field of video playback, in particular to a method for equalizing pixels in a spherical panoramic image / video. Background technique [0002] Panoramic video is a form of expression of virtual reality (VR, Virtual Reality), which can present a 720° scene to the audience, so that the audience can get an immersive viewing experience. At present, panoramic video generally adopts spherical projection (such as figure 1 shown). Specifically, when there is a spherical display device, the panoramic video using the spherical projection method can be directly played on the spherical display device. When there is no spherical display device but only a flat display device, a compromise playback method can be adopted, that is, assuming that the flat display device is a window (in figure 1 The box closer to the person in the middle), the user sees a part of the panoramic view through this window (in the figure 1 the box fart...
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IPC IPC(8): H04N5/262
CPCH04N5/262
Inventor 张勇朱立松
Owner 央视国际网络无锡有限公司