Non-contact type input method and device
A non-contact, input method technology, applied in the field of electronic information, can solve the problems that cannot satisfy the natural and convenient human-computer interaction, single input method, etc., and achieve the effect of natural and convenient human-computer interaction, improved flexibility, and various methods
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example 1
[0048] Example 1: voice input method.
[0049] In this mode, the user speaks the content to be input through the microphone set on the machine.
[0050] When specifically inputting, the user can first speak the command to start the input mode, such as "start voice"; then the user can input the content by voice; It is recognized as text data and displayed on the interactive screen, for example, the text content corresponding to the voice data spoken by the user is displayed "today the weather in Hefei is sunny and the temperature is 20 degrees Celsius".
example 2
[0051] Example 2: In-air handwriting input mode.
[0052] In this mode, the user writes out the input content through the camera installed on the machine.
[0053] For specific input, the user can first generate an input mode start command, such as using a gesture to generate an input mode start command, specifically as image 3 As shown, the user can first make a fist and then stretch out the index finger, which indicates that the air handwriting input mode is started. Then the user starts to write the content that needs to be input in the air. During the input process, the system of the machine records the movement trajectory of the user's hand. After performing median filtering, after obtaining the set of movement trajectory points of the user's hand, the trajectory points are spliced. Carry out handwriting recognition according to the trajectory after splicing, obtain the user input content, after the system receives the user's stop input gesture, the user input content i...
example 3
[0055] Example 3: Gesture input method.
[0056] It is similar to handwriting input, but when inputting, it is not limited to tracking the movement trajectory of the hand, but can also track the movement trajectory of the arm or other parts of the body, or operate with both hands or multiple hands; since gesture input is not as convenient as handwriting input text content, Therefore, gesture input is generally used to input some control commands, such as clicking, moving the cursor, grabbing display content, confirming, canceling, etc. Taking hand gestures as an example, such as Figure 5 It is a schematic diagram of the user's hand movement for single-click operation, that is, the user's hand is first spread out, and then a fist is made; taking arm gestures as an example, when the user's hands and arms are crossed, it can indicate cancellation;
[0057] During the specific input, according to the predetermined gesture action, after tracking the movement trajectory of the corr...
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