9 results about "Cast shadow" patented technology

A method and an apparatus for processing a 3D scene are presented. Techniques are disclosed for determining light source locations, including tracking a current viewpoint of a camera capturing object(s) in a 3D scene and determining a reference viewpoint relative to the current viewpoint of the camera. According to aspects, a light source location is determined by obtaining a registered map of real cast shadows of the object(s) from an input image captured by the camera, registered with respect to the reference viewpoint. Then, for candidates of light sources, obtaining respective maps of virtual shadows of the object(s) created with respect to the reference viewpoint, and determining the location of the light source based on the candidates of light sources with respective maps of virtual shadows that match the registered map of real cast shadows.

The invention relates to a device for reflecting daylight in a fixed direction chosen by the user, despite the sun's movement. The device is distinguished by its ability to be placed in any position and requires no calibration by the user. It positions itself in the Earth's frame of reference using an accelerometer coupled to a solar sighting system, which allows it to determine its position in the Earth's frame of reference and orient the mirror to maintain a constant direction of the reflected beam. The beam is unaffected by any cast shadows, and the system's accuracy is increased compared to compass-based devices. (Shorthand figure: Figure 1)

This item is installed inside a prize-winning game machine and is used as a display stand for placing prizes. As shown in "Reference Diagram 1 Showing the State of Use," the item and the display bar are transparent, so they are not noticeable even when there are no prizes placed on them, and they do not cast shadows on the play field due to lighting, making it easy to operate the game machine with this item installed even when there are no prizes placed on it. In addition, as shown in "Reference Diagram Showing the State of Upside Down Installation," this item can also be installed upside down to be used as a display stand with side walls.

Systems and methods are disclosed for calculating dynamic ambient occlusion (AO) values for character models to yield high-quality approximations of global illumination effects. The approach utilizes a dual component machine-learning model that factorizes dynamic AO computation into a non-linear component, in which visibility is determined by approximating spheres and their casted shadows, and a linear component that leverages a skinning-like algorithm for efficiency. The parameters of both components are trained in a regression against ground-truth AO values. The resulting model accommodates lighting interactions with external objects and can be generalized without requiring carefully constructed training data.

A method and apparatus for processing a 3D scene are disclosed. (41) At least one virtual reference viewpoint in the 3D scene is determined. (42) A map of registered real cast shadows of objects in the 3D scene is captured from an input image captured by a camera located at a viewpoint different from the virtual reference viewpoint, the map of real cast shadows being registered relative to the virtual reference viewpoint. (44) Using the map of registered real cast shadows and at least one map of virtual shadows of objects in the 3D scene projected by the at least one light source from the virtual reference viewpoint, parameters for at least one light source in the 3D scene are determined.

Vehicle interior trim comprising a display device The vehicle interior trim comprises a display device comprising a projection surface (4), an indicator object (6) and a lighting device (8) comprising one or more light sources (10), the lighting device (8) being configured for lighting the indicator object (6) so as to generate a cast shadow (S1, S2) of the indicator object (6) on the projection surface (4), by varying the shape, size and / or position of the cast shadow (S1, S2) depending on an indication to be displayed. Figure for abstract: Figure 1

A method of manufacturing an apparatus (12), the method comprising: forming a portion of an electronic circuit device and a shadow wall structure (13) above a substrate, and then depositing a conductive layer (5) on the substrate by depositing conductive material in at least a first deposition direction at an acute angle relative to the plane of the substrate. The shadow wall structure is arranged to cast a shadow during deposition to leave areas where conductive material is not deposited. The shadow wall structure includes one or more gaps (15), each gap being shorter than the shadow length of the corresponding portion of the shadow wall structure casting a shadow into the gap to prevent conductive material from forming in the gap and thereby forming electrically isolated areas of the upper conductive layer from each other. These are arranged to form conductive elements for applying signals to the electronic circuit device and / or receiving signals from the electronic circuit.

The present disclosure generally provides a system for providing continuously optimized illumination by autonomously and / or remotely controlling an illumination source, such as a motorized ceiling-mounted arm with a light attached to its end. Autonomously and / or remotely controlling illumination is accomplished by tracking a user's area of focus through two cameras, autonomously positioning and / or repositioning the illumination source to follow the user's area of focus, autonomously positioning and / or repositioning to avoid casting shadows, and utilizing remote sensing technology, such as LiDAR technology, to avoid collisions during positioning and / or repositioning. The system can also be controlled by a remote operator and can toggle between autonomous and remote-controlled operation on command.