A processing method and device based on projected images

Abstract

The present invention is applicable to the field of image processing, and provided are a processing method and device based on a projection image. The method comprises: acquiring a secondary imaging image of a projection image on a projection surface in an imaging device, wherein the projection image is formed by a preset reference image being projected on the projection surface, and reference identification points are preset on the reference image; acquiring secondary image identification points in the secondary imaging image; acquiring a distortion coefficient according to the change of the location parameters of the secondary image identification points in the secondary imaging image based on the location parameters of the reference identification points in the reference image; and modifying an image to be projected according to the distortion coefficient. Thus, the processed projection image is less distorted or not distorted at all so as to improve an image projection device's adaptive capability to the environment.

Description

technical field [0001] Embodiments of the present invention relate to the field of image processing, and in particular, to a projection image-based processing method and device. Background technique [0002] Projection display is a display method widely used in people's daily work and life. It is loved by the public for its adjustable size of projected image, free and flexible selection of projected surface, and free mobility of projected equipment. . Traditional projection displays generally use ceiling-mounted or table-mounted fixed settings, and have a fixed projection surface. With the development of technology, projectors are getting smaller and smaller and can be moved freely and flexibly, such as wearable projection devices. It can be configured on the human body, which increases the uncertainty factors in the projection environment. The angle change between the projection device and the projection surface and the unevenness of the projection surface will cause the p...

AI Technical Summary

Problems solved by technology

Traditional projection displays generally use ceiling-mounted or table-mounted fixed settings, and have a fixed projection surface. With the development of technology, projectors are getting smaller and smaller and can be moved freely and flexibly, such as wearable projection devices. It can be configured on the human body, which increases the uncertainty factors in the projection environment. The angle change between the projection device and the projection surface and the unevenness of the projection surface will cause the projection image to be distorted. How to deal with this image distortion is particularly important. important

The prior art provides a projection device, including a projector, a projection surface, and a camera. The projector projects an interactive interface on a certain medium, and the user interacts with the interface through a specific gesture, which is captured and transmitted by the camera. The computing device recognizes and drives the device to complete corresponding actions according to the recognition results. However, since the specific location of the projection surface is not known in advance, the angle between the projector and the projection surface may change frequently. This complex projection environment will cause the projected image Generate large projection deformation and distort the displayed image

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