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A Smoothing Method of 3D Automatic Camera Trajectory

A technology of smooth processing and motion trajectory, applied in the 3D field, it can solve problems such as poor visual experience, and achieve the effect of beautiful scene and good visual experience of 3D scene.

Active Publication Date: 2020-04-17
ZHEJIANG KELAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a motion track edited arbitrarily will bring visual jumps when the camera is changed, and the visual experience is very poor.

Method used

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  • A Smoothing Method of 3D Automatic Camera Trajectory
  • A Smoothing Method of 3D Automatic Camera Trajectory
  • A Smoothing Method of 3D Automatic Camera Trajectory

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Get user given as figure 2 A motion trajectory shown in ;

[0032] Such as image 3 As shown in , analyze this trajectory, the solid black dots are the key points, and the order is sorted from left to right. Starting from the second key point, each key point calculates the connection line from the previous key point to this key point The angle between the direction and the direction of the line connecting this key point to the next key point.

[0033] The user specifies that the upper limit of the angle transformation of each key point is 10 degrees, except for the fourth key point, interpolation is required, such as Figure 4 As shown, the calculated interpolation points are several B0, B1...B4, the original path is P0-P1-P2, the key points are replaced by interpolation points, replaced by P0-B0-B1-...B4-P2, and the remaining key points are also according to above operation.

[0034] Such as Figure 5 As shown, then all the unreplaced key points are connected wit...

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Abstract

The invention relates to the technical field of computers and discloses a three-dimensional automatic camera track smooth processing method. The method comprises the following steps of (1) obtaining a motion track given by a user; (2) analyzing the motion track to determine points needed to be subjected to interpolation point calculation and an interpolation point number; (3) calculating the interpolation points and replacing the points in the original motion track; and (4) performing continuous camera change by using a changed motion track. The change is smoother when a camera is continuously changed in a three-dimensional scene by using the camera motion track set arbitrarily by the user and real-time imaging is performed to simulate an observation process in the three-dimensional scene. The camera motion track set by the user is analyzed to determine whether interpolation replacement is needed or not, and if the replacement is needed, the interpolation points are calculated by using a quadratic Bezier curve equation and original key points are replaced, so that the whole motion track more tends to a curve during turning, the change of the camera along the motion track is smoother, and the scene is more attractive.

Description

technical field [0001] The invention relates to the field of three-dimensional technology, in particular to a method for smoothing three-dimensional automatic camera tracks. Background technique [0002] The 3D scene is built by placing the 3D model data in the 3D space, and the user needs to observe in the built 3D scene. This observation process is usually simulated by means of constant camera changes and real-time imaging. The camera's changing process constitutes a motion track of the camera. The user can edit a motion track arbitrarily, and achieve the purpose of observing the scene through the automatic transformation of the camera. However, an arbitrarily edited motion track will bring visual jumps when the camera changes, and the visual experience is very poor. Therefore, it is necessary to provide a processing method to make the motion trajectory smoother, so that the user can get a better visual experience. Contents of the invention [0003] The present inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/292
Inventor 季惟婷俞蔚
Owner ZHEJIANG KELAN INFORMATION TECH CO LTD
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