Handheld reader

Abstract

The invention discloses a handheld reader which comprises a shell, a processor, a camera module, a processor and a camera module. The processor and the camera module are arranged in the shell. The shell is provided with an image acquisition window, and a light incident surface of the camera module faces the image acquisition window. The camera module comprises an image sensor, a light filtering assembly and a lens. The light filtering assembly comprises at least two light filters and a power part used for driving the at least two light filters to move, each light filter is matched with at least one set reading mode, and different light filters are matched with different reading modes. The processor is set to control the power piece to drive the matched optical filter to move to the filtering action position of the camera module according to the current reading mode of the reader.

Description

technical field [0001] The invention relates to the technical field of digital equipment, in particular to a hand-held reader. Background technique [0002] Currently, handheld readers on the market include point reading pens, scanning pens, and the like. The point reading pen is used in conjunction with the audio book. The carbon ink color invisible code is printed on the paper of the audio book. The image style of the invisible code printed at different positions of the audio book is different, and each image style has a unique number. When the point reading pen points to different positions, read the invisible code at the corresponding position, and determine the number of the invisible code according to the image style of the read invisible code, so as to find it in the file library stored by the point reading pen according to the number The matching sound file is played. The scanning pen is mainly used to read the text content. When the scanning pen reads the text pri...

AI Technical Summary

Problems solved by technology

This shows that for the existing point reading pen, when it is expected to be expanded to be used as a scanning pen, the scanning pen can only read black text content, but for colored text, background-colored text, textured text, etc. The recognition ability of text, etc. is poor, or even completely unrecognizable, and the recognition rate equivalent to a single-function scanning pen cannot be obtained.

For the scanning pen of the prior art, it uses a visible light filter to collect text images. Therefore, only visible light can reach the image sensor for imaging, but because the invisible code layer is an infrared layer, it cannot reflect visible light. Therefore, Existing scanning pens cannot read invisible codes at all, and of course they cannot obtain the recognition rate equivalent to a single-function point-reading pen

Images