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Projection-based trajectory recognition method, projection device and storage medium

A recognition method and projection equipment technology, applied in the field of projection, can solve the problems of projected screen shaking, unrecognizable, wrong track connection, etc.

Active Publication Date: 2020-11-17
荣成歌尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, the trajectory may be wrongly connected, resulting in failure to recognize or misrecognize user gestures, which in turn will cause the projection screen to shake or even freeze, and the user experience is poor.

Method used

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  • Projection-based trajectory recognition method, projection device and storage medium
  • Projection-based trajectory recognition method, projection device and storage medium
  • Projection-based trajectory recognition method, projection device and storage medium

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Experimental program
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Embodiment approach 1

[0050] Embodiment 1: According to the position coordinates of the N track points at the first moment, the reference track point with the smallest abscissa is selected from the N track points.

Embodiment approach 2

[0051] Embodiment 2: According to the position coordinates of the N track points at the first moment, the average coordinate of the N track points is used as the reference track point.

[0052] Take N=2, M=3 below, and select the track point with the smallest abscissa from the N track points at the first moment as the reference track point as an example, and correct the track points at the second moment from M to N The process is illustrated as an example.

[0053] Such as Figure 1b As shown, A1, A2 and A3 are the three track points detected at the second moment; B1 and B2 are the two track points at the first moment. Then select B1 with the smaller abscissa from B1 and B2 as the reference track point. After that, calculate the distances from A1, A2 and A3 to B1 respectively as d A1B1 、d A2B1 and d A3B1 . due to d A3B1 > d A2B1 > d A1B1 , so the trajectory point A3 is removed, that is, the trajectory points A1 and A2 are two trajectory points at the second moment.

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Abstract

The embodiment of the invention provides a trajectory recognition method based on projection, projection equipment and a storage medium. According to the embodiment of the invention, In the interaction process of an interaction object and a projection picture, continuously detecting the quantity of track points generated by the interactive object on the projection picture; and if the number of thetrack points detected at the current moment is different from the set number of the track points, correcting the number of the track points at the current moment into the set number of the track points according to the position information of the track points at the previous moment and the position information of the track points detected at the current moment. Therefore, according to the position of the track point at the previous moment and the corrected position of the track point at the current moment, the position of the track point at the current moment is corrected; The motion track ofthe interactive object from the previous moment to the current moment is determined, so that the probability of track misconnection can be reduced, the fluency of the continuous operation response ofthe interactive object on the projection picture can be improved, and the user experience is improved.

Description

technical field [0001] The present application relates to the field of projection technology, and in particular to a projection-based trajectory identification method, projection equipment and storage media. Background technique [0002] With the continuous development of projection technology, projection equipment with interactive functions has emerged as the times require. For example, household equipment such as projection audio and projection lamps have been widely used in people's lives, bringing great convenience to people's lives. [0003] For a projection device with an interactive function, the content of the screen can be projected onto the projection plane to form a projection screen, and the user can interact with the projection device by performing corresponding operations on the projection screen. For example, operations such as touching, dragging, sliding, zooming in, and zooming out can be performed. [0004] In practical applications, the user can use two ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/0484G06F3/042
Inventor 张士林陈维亮
Owner 荣成歌尔科技有限公司