Input method and device based on hand and fingerprint sensor

Abstract

The invention discloses an input method and device based on a hand and fingerprint sensor, and the method comprises the steps: obtaining a plurality of sample images which comprise the images of different positions of each finger region; the identifiability of the sample images is tested, and the test result is that at least five independent parts of each finger are used for inputting and reading fingerprints; based on the test result, according to a preset virtual keyboard mode, a fingerprint sensor is used for obtaining and inputting a first matched fingerprint to be stored in a fingerprint database, and the first matched fingerprint comprises images or feature templates of different finger positions; and acquiring and reading a second matching fingerprint by using the fingerprint sensor, performing matching operation on the second matching fingerprint and the first matching fingerprint stored in the fingerprint database to obtain a matching result, and performing real-time display through the intelligent display equipment based on the matching result to form visual feedback. The method is more stable and universal in principle, is better in operation feasibility, is higher in typing speed, and is more convenient for a user.

Description

technical field [0001] The invention relates to the field of human-computer interaction, in particular to an input method and device based on hand and fingerprint sensors. Background technique [0002] With the gradual breakthrough of smart devices, related hardware devices also need to make breakthroughs. Among them, the typing keyboard has higher requirements for the design technology because of its relatively complex operability. Wearable devices are currently the main design direction. Compared with handheld devices, they are more free and convenient, and more adaptable to new lifestyles. However, the limited input conditions of wearable devices will limit the realization of its functions. For example, the current mainstream design of smart glasses usually does not support text input, and voice input is not convenient in many social environments. In addition, limited touch gestures can only solve the most basic problems. Requirements, it is blank on the typing input fun...

AI Technical Summary

Problems solved by technology

[0005] 1. The positioning-based method is not accurate for finger positioning and press detection. If the wristband moves to different degrees, the positioning will be inaccurate;

[0006] 2. The range of the finger area is limited, and each finger corresponds to 5 letters, which can easily cause false touches and reduce the efficiency of input

On the basis of no visual feedback, it is actually difficult for people to ensure that they can directly press the target position;

[0007] 3. When typing, the non-dominant hand needs to be completely straightened and closed, and the finger used as the input stylus is used repeatedly, and it is easier to get tired. These will cause inconvenience in input and the user experience is not free enough

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