Distortion picture correction method and display equipment

Abstract

The embodiment of the invention discloses a distortion picture correction method and display equipment. The correction method comprises the following steps: acquiring a shot picture of a standard correction pattern displayed by the display device; preprocessing the shot picture, and extracting a feature point coordinate in the shot picture; selecting a preset number of feature points in the central area of the shot picture, and adjusting the rotation and scale of the shot picture according to the selected feature points to obtain a corrected picture; calculating the offset of each feature point of the corrected picture relative to the corresponding position of the standard correction pattern according to the corrected picture and the standard correction pattern; and correcting an actual display picture of the display device according to the offset. The distortion image correction method provided by the embodiment of the invention can be used for correcting irregular distortion generated after the near-to-eye display equipment is refracted by the optical structure, and the user experience is improved.

Description

technical field [0001] Embodiments of the present invention relate to display technology, and in particular, to a distorted picture correction method and a display device. Background technique [0002] In the imaging process of various optical imaging systems, various distortions will inevitably occur. The correction of distortion in the existing technology is generally to fit the distortion coefficient according to the preset formula to realize the offset of the deformation effect. The traditional De-distortion algorithms are usually used to correct the distortion effects caused by various optical imaging lenses. Such distortions have relatively clear distortion effects, such as pincushion distortion and barrel distortion. [0003] Using the formula to fit the distortion coefficient, the complex distortion effect corresponds to the complex correction model, and the prior knowledge of the distortion type helps to select a suitable correction model, and it also helps to impro...

AI Technical Summary

Problems solved by technology

However, some near-eye display devices (such as wearable virtual reality VR devices, augmented reality AR devices, etc.) will cause irregular distortion of the virtual image after being refracted by the optical structure. The distortion effect is similar to the effect of multiple distortion types, which is difficult to use. The conventional coefficient fitting method realizes the anti-distortion processing of the picture, which affects the user experience

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