Projection screen area adjustment method and projection screen area adjustment device

Abstract

The invention discloses a projection screen area adjustment method. The method comprises the following steps: performing splicing calibration on projection surfaces of a plurality of projection devices to form an initial projection screen area, and obtaining a calibration result parameter, wherein the calibration result parameter comprises an area requiring a projection image and a position corresponding relation between the area and the initial projection screen area; adjusting the projection screen area according to the indication of a user, and establishing a mapping relation between the area requiring the projection image and the adjusted area requiring the projection image based on the adjustment operation; mapping the projection image into the adjusted projection image based on the mapping relation; and mapping the adjusted projection image onto the initial projection screen area based on the calibration result parameter. In addition, the invention further discloses a projection screen area adjustment device.

Description

Technical field [0001] The invention relates to a projection screen area adjustment method and a projection screen area adjustment device. Background technique [0002] In many application scenarios, it is usually necessary to use the projection surfaces of multiple projectors to form a large screen, and display the desktop screen of the PC on the large screen for demonstration, such as in a large demonstration hall, outdoor advertising or a construction company. When the scale involves the model. Generally, it is necessary to use a large screen formed by splicing the projection surfaces of the projector to project in a specific range. [0003] Currently, there are two main methods for adjusting the projection screen area (projection range) of a multi-screen projector: [0004] The first method is to manually and repeatedly adjust the positions of multiple projectors and then perform the stitching calibration of the projectors, and finally make the projection screen area fall withi...

AI Technical Summary

Problems solved by technology

However, this method can only be set in a specific setting stage before the splicing projection, and once set, it cannot be dynamically adjusted.

Moreover, since this method is to set the projection screen area by pulling four calibration points in the black screen state before calibration splicing, the setting action is not intuitive and accurate enough.

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