City three-dimensional map video stream encryption method and system based on artificial intelligence
A technology of artificial intelligence and three-dimensional map, which is applied in the field of artificial intelligence-based urban three-dimensional map video stream encryption and the release of urban three-dimensional video map, can solve the problems of unencrypted and cumbersome algorithm encrypted data, etc., to achieve enhanced protection and enhanced experience sexual effect
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Embodiment 1
[0081] Such as figure 1 It is a flow chart of a method for encrypting a three-dimensional map video stream of city A based on artificial intelligence, which is characterized in that it comprises the following steps:
[0082] S1. Establishment of a 3D rendering model of city A based on the artificial intelligence network;
[0083] S2. Perform video simulation recording according to the pre-selected road path in the 3D rendering model to form a 3D rendering video stream of the city;
[0084] S3. Select at least one frame of image in the video stream in S2 to be fused into a frame fused image as an encrypted image, select at least one geometric figure whose number is equal to the number of the at least one frame of image, and according to the The key is obtained by superimposing at least one geometric figure and the image pixel feature value obtained after the encryption map;
[0085] S4. Establish an artificial intelligence decryption model by using the encryption graph and t...
Embodiment 2
[0099] Carry out step S2 on the basis of embodiment 1, specifically include S2-1, such as Figure 4a shown, select Mod 3D The road centerline path L of interest in the width w, the preset shooting height h, the simulation camera C is set at the starting point of the path ( Figure 4a The position at height h=10m at C) on the middle right.
[0100] S2-2 Use the analog camera C to shoot and acquire at least one frame of image to complete the recording of the video stream; or, move the analog camera C from the starting point to the end point according to the road path ( Figure 4a Middle left C), the recording of the video stream is completed. The speed of the movement is according to Mod 3D The frame rate of the video stream is 60FPS when the scale of the model is converted to 1m / s in the real scene.
Embodiment 3
[0102] On the basis of embodiment 2, the path is reselected as Figures 4a-4d The flight path of Figure 4a The position of C in the corresponding real scene is the starting point, and S3-1 flies to Figure 4a Point C on the right side of the center is shot to complete the video stream. Then S3-2 divided the video stream into four time-sorted shooting video streams by presetting the first time, and randomly selected the first frame of each segment according to the Shuffle algorithm, a total of four images.
[0103] Such as Figure 5 , S3-3 splicing the four images in chronological order from upper left to upper right to lower left to lower right into a fusion image as an encrypted image. S3-4 selects four geometric figure edges (single pixel width, Figure 5 The bit indicates that the actual edge is more than one pixel), and use the radom algorithm to select a geometric regular triangle. In this embodiment, the equilateral triangle is a circle that can be inscribed, a str...
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