Abstract: Disclosed is a method and apparatus for smoothing a motion trajectory in a video. According to this method, an original rotation matrix sequence of a video frame sequence of an input video is acquired. Then an objective function is determined according to the Riemann manifold architecture, and the smooth rotation matrix that minimizes the objective function is iteratively solved for according to the Riemannian manifold constrained smoothing algorithm, thus obtaining a smooth rotation matrix sequence after the smoothing. Then the video frame sequence is subjected to image stabilization based on the smooth rotation matrix sequence, thereby eliminating motion jitter, making the motion in the video smoother, and improving the video quality.

Abstract: Disclosed is a method and apparatus for smoothing a motion trajectory in a video. According to this method, an original rotation matrix sequence of a video frame sequence of an input video is acquired. Then an objective function is determined according to the Riemann manifold architecture, and the smooth rotation matrix that minimizes the objective function is iteratively solved for according to the Riemannian manifold constrained smoothing algorithm, thus obtaining a smooth rotation matrix sequence after the smoothing. Then the video frame sequence is subjected to image stabilization based on the smooth rotation matrix sequence, thereby eliminating motion jitter, making the motion in the video smoother, and improving the video quality.

Abstract: The present invention relates to a light field light source orientation method for augmented reality and virtual reality and a front-end device. The method comprises: A: identifying a target marker; B. tracking the target marker; C. analyzing the pixel color shape on the marker object; D. analyzing color difference zones on the marker object and analyzing the shape cast to calculate direction of environmental light source; E. pushing the light source directional data to an augmented reality object; and F. compensating and adjusting the imaging of an augmented reality object: the present invention can collect surrounding environmental factors, such as the light source direction, so as to project a computer-generated object into a reality environment to possess a shadow consistent with that in the reality, so that an augmented reality environment is more realistic and represents a realist shadow effect of the object.

Abstract: The present invention relates to a light field light source orientation method for augmented reality and virtual reality and a front-end device. The method comprises: A: identifying a target marker; B. tracking the target marker; C. analyzing the pixel color shape on the marker object; D. analyzing color difference zones on the marker object and analyzing the shape cast to calculate direction of environmental light source; E. pushing the light source directional data to an augmented reality object; and F. compensating and adjusting the imaging of an augmented reality object: the present invention can collect surrounding environmental factors, such as the light source direction, so as to project a computer-generated object into a reality environment to possess a shadow consistent with that in the reality, so that an augmented reality environment is more realistic and represents a realist shadow effect of the object.