Method and device for inputting text written in air

Abstract

The invention provides an air writing text input method and device, characters are written in the air by using a handheld writing rod, a writing process is acquired and displayed by using an embedded platform device with a display screen and a camera, and text input including three character types of numbers, symbols and English is realized through methods of target tracking, text recognition and the like. Contactless and convenient man-machine interaction is achieved. Comprising the steps of initializing an air writing text input system; holding the writing rod with a hand to enter the aerial area monitored by the camera and moving the writing rod into the tracking frame; tracking the writing stick by using a target tracking model, and determining the position of a current tracking frame; judging whether to switch the input character type or not; writing characters in the air by using a writing rod, and generating a character image; recognizing the character image by using a character recognition model to recognize characters; character display is added; judging whether to clear the added and displayed characters or not; clearing the added and displayed characters; and judging whether the input of all characters in the text is ended.

Description

technical field [0001] The invention relates to the technical field of pattern recognition, and in particular, to a method and device for inputting text written in the air. Background technique [0002] Today, smart electronic devices bring convenience to people's daily life, while improving the efficiency of industrial production and the quality of products. However, most of the interaction methods of intelligent electronic devices use contact input devices, such as keyboards, mice, touch screens, and the like. The contact input method of public electronic equipment has buried hidden dangers to health and safety. Writing text in the air is a new way of human-computer interaction, which can avoid contact well and realize contactless information input. [0003] Most of the existing air writing text input systems are based on sensors. For example, the method, device, storage medium and electronic equipment for air writing track recognition disclosed in Chinese Patent Publica...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing air writing text input systems are realized based on sensors, for example: the Chinese patent publication number CN113052078 discloses the air writing trajectory recognition method, device, storage medium and electronic equipment, and there are some deficiencies, such as: need to wear sensors Equipment, affecting user experience; there is a problem of poor anti-interference ability in complex environments

Images