4 results about "Surface element" patented technology

Embodiments are directed towards a system for enabling a user to view an image on a surface. The system may include projector(s), sensor, projection surface or screen, and processor. The projectors may project light for an image onto the surface. The sensor may detect light reflected off the surface. The surface may include multiple types of surface elements, such as multiple first elements positioned as border of a display area on the surface to provide feedback regarding the surface and multiple second elements positioned within the border of the display area to reflect the image to the user. The processor may determine characteristics of the border of the display area based on light reflected to the sensor from first elements. And it may modify parameters of the image based on the characteristics of the border of the display area.

The invention provides a surface element file conversion method and device, computer equipment and a readable storage medium, and the surface element file conversion method comprises the steps: obtaining a first format surface element file, and extracting vector line data, annotation text data and road center line data from the first format surface element file; performing preset vector linearization topology processing on the vector line data to obtain processed vector line data; utilizing the processed vector line data to construct an initial surface element, and superposing the corresponding annotation text data and the road center line data to the initial surface element to obtain a new surface element; and defining and distinguishing the attribute of each new surface element according to the annotated text data and/or the road center line data, and generating a second format surface element file. According to the method, the conversion efficiency of the surface element file can be improved, and the attribute of the new surface element can be quickly defined and distinguished according to the extracted annotation text data and the road center line data, so that the accuracy of the converted surface element file is ensured.

The invention relates to a method and a device for determining ship infrared characteristic influence parameters. The method comprises the following steps of: pre-establishing a relation equation among effective infrared radiation data of each surface element on a ship target, a plurality of environment parameters and a plurality of to-be-solved parameters; acquiring n * m groups of test data of corresponding surface elements of the vessel target in an actual scene; inputting each m groups of test data into the relation equation to obtain a group of nonlinear constraint equations taking a plurality of to-be-solved parameters as variables, and solving each group of nonlinear constraint equations by adopting a Newton method to obtain a corresponding group of to-be-solved parameter estimated values; and calculating a confidence interval of each to-be-solved parameter according to the n groups of estimated values of the to-be-solved parameters, determining an estimated value falling in the corresponding confidence interval in the n estimated values of each to-be-solved parameter, and determining a target value corresponding to the to-be-solved parameter according to the estimated value falling in the corresponding confidence interval in the n estimated values of each to-be-solved parameter. The accuracy of the to-be-solved parameters can be improved.