Abstract: In accordance with some aspects, systems, methods and media for hierarchical progressive point cloud rendering are provided. In some aspects, a method for point cloud rendering is provided, the method comprising: rendering a first image based on point cloud data; requesting point cloud points, first synthetic point cloud points, and an octant of a second synthetic point cloud that intersects a new viewing frustum; reprojecting points used during rendering of the first image into frame buffer objects (FBOs) of different resolutions; replacing reprojected points if a received point corresponding to the same pixel is closer to the camera; determining that a pixel in the highest resolution FBO is unfilled; copying a point that originated in a lower resolution FBO to the gap in the highest resolution FBO; and when the highest resolution FBO is filled, rendering a second image based on the contents.

Abstract: In accordance with some aspects, systems, methods and media for detecting manipulations of point cloud data are provided. In some aspects, a method for presenting information indicative of whether a manipulation of point cloud data has occurred is provided, the method comprising: receiving point cloud data comprising a plurality of points, wherein each point of the plurality of points is associated with a position; determining, for each of the plurality of points, a value indicative of a density of points in a region surrounding the respective point; associating, for each of the plurality of points, the value indicative of density with the respective point; and causing a representation of at least a portion of the point cloud data to be presented based on the location information associated with each point of the plurality of points, and the value indicative of density associated with each of the plurality of points.

Abstract: In accordance with some aspects, systems, methods and media for hierarchical progressive point cloud rendering are provided. In some aspects, a method for point cloud rendering is provided, the method comprising: rendering a first image based on point cloud data; requesting point cloud points, first synthetic point cloud points, and an octant of a second synthetic point cloud that intersects a new viewing frustum; reprojecting points used during rendering of the first image into frame buffer objects (FBOs) of different resolutions; replacing reprojected points if a received point corresponding to the same pixel is closer to the camera; determining that a pixel in the highest resolution FBO is unfilled; copying a point that originated in a lower resolution FBO to the gap in the highest resolution FBO; and when the highest resolution FBO is filled, rendering a second image based on the contents.

Abstract: In accordance with some aspects, systems, methods and media for hierarchical progressive point cloud rendering are provided. In some aspects, a method for point cloud rendering is provided, the method comprising: rendering a first image based on point cloud data; requesting point cloud points, first synthetic point cloud points, and an octant of a second synthetic point cloud that intersects a new viewing frustum; reprojecting points used during rendering of the first image into frame buffer objects (FBOs) of different resolutions; replacing reprojected points if a received point corresponding to the same pixel is closer to the camera; determining that a pixel in the highest resolution FBO is unfilled; copying a point that originated in a lower resolution FBO to the gap in the highest resolution FBO; and when the highest resolution FBO is filled, rendering a second image based on the contents.

Abstract: In accordance with some aspects, systems, methods and media for detecting manipulations of point cloud data are provided. In some aspects, a method for presenting information indicative of whether a manipulation of point cloud data has occurred is provided, the method comprising: receiving point cloud data comprising a plurality of points, wherein each point of the plurality of points is associated with a position; determining, for each of the plurality of points, a value indicative of a density of points in a region surrounding the respective point; associating, for each of the plurality of points, the value indicative of density with the respective point; and causing a representation of at least a portion of the point cloud data to be presented based on the location information associated with each point of the plurality of points, and the value indicative of density associated with each of the plurality of points.

Abstract: In accordance with some aspects, systems, methods and media for hierarchical progressive point cloud rendering are provided. In some aspects, a method for point cloud rendering is provided, the method comprising: rendering a first image based on point cloud data; requesting point cloud points, first synthetic point cloud points, and an octant of a second synthetic point cloud that intersects a new viewing frustum; reprojecting points used during rendering of the first image into frame buffer objects (FBOs) of different resolutions; replacing reprojected points if a received point corresponding to the same pixel is closer to the camera; determining that a pixel in the highest resolution FBO is unfilled; copying a point that originated in a lower resolution FBO to the gap in the highest resolution FBO; and when the highest resolution FBO is filled, rendering a second image based on the contents.