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Air writing processing method and device
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A processing method and a writing track technology, applied in the field of information processing, can solve the problems of low recognition accuracy and inconvenient use, and achieve the effect of convenient and natural writing
Active Publication Date: 2018-12-21
BEIJING SAMSUNG TELECOM R&D CENT +1
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Problems solved by technology
[0009] (1) The user needs to use a specific gesture to open five fingers to one finger to mark the beginning of a character input, and use a specific gesture to change one finger to five fingers open to mark the end of a character input, which is inconvenient to use
[0010] (2) The reconstructed trajectory cannot break the pen, which makes the recognition accuracy rate not high for some characters with "." (dot), such as i, j, etc., when recognizing based on the trajectory
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Embodiment 1
[0040] like figure 2 As shown, the in-air writing processing method of the embodiment of the present application includes the following steps:
[0041] Step S102, obtaining a series of nodes corresponding to the movement trajectory of the writing part during the user's writing in the air;
[0042] Wherein, the writing part may be a user's hand or a writing pen.
[0043] Specifically, when the writing part is the user's hand, the method for implementing step S102 may include the following steps:
[0044] Step S1021: Obtain the depth map video of the user's writing process in the air;
[0045] Wherein, the depth map video may be obtained by using a depth image sensor or a camera device. Depth Map refers to the distance of each point in the scene relative to the depth image sensor or camera device, that is, each pixel value in the depth map represents the distance between a point in the scene and the depth image sensor or camera device.
[0046] In step S1022, the user's han...
Embodiment 2
[0113] Regarding the method in the first embodiment above, an in-air writing processing device to which the method can be applied is provided in the embodiment of the present application.
[0114] like Figure 14 As shown, the following modules are included in the device: an acquisition module 10, a selection module 20, an identification module 30 and a display module 40, wherein:
[0115] The obtaining module 10 is used to obtain a series of nodes corresponding to the movement track of the writing part during the user's writing in the air; it is also used to obtain the movement information of the writing part;
[0116] The selection module 20 is used to select a node as the starting point of the writing track point set from a series of nodes according to the motion information obtained by the acquisition module 10, and select a node as the end point of the writing track point set;
[0117] The recognition module 30 is used to recognize the writing track point set and obtain ...
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Abstract
The invention discloses a sky-writing processing method and device. The method comprises the steps of acquiring a series of nodes corresponding to the motion track of a writing component of a user in the sky-writing process, acquiring the motion information of the writing component, selecting one node from a series of nodes as the starting point of a writing track point set according to the motion information, selecting one point from a series of nodes as the terminal point, recognizing the writing track point set and displaying a recognition result. By means of the method and device, the user can write more conveniently and naturally, and the recognition rate can be increased.
Description
technical field [0001] The present application relates to the technical field of information processing, in particular to a method and device for processing writing in the air. Background technique [0002] Currently, terminal devices such as mobile phones and computers already support handwriting input functions. Users can use fingers or stylus pens (or operation pens) to manually input content they want to input on the touch screens of these terminal devices, and the terminals can identify them through the traces sensed on the touch screens. However, this method must rely on an input medium such as a touch screen to complete. [0003] With the continuous progress of science and technology, a kind of air handwriting method different from the above-mentioned traditional handwriting method has emerged as the times require. Air handwriting, as the name suggests, means that the terminal device can obtain and recognize the trajectory information written by the user with a fing...
Claims
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Application Information
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