Multipoint-touch-technology-based video scaling method

Abstract

The invention provides a multipoint-touch-technology-based video scaling method. A flow for implementing the method comprises the following steps that: a user performs at least two paths of touch operations in different directions, and a touch signal capturing module captures the touch operations, and generates touch signals; a touch signal integration module receives the touch signals, and integrates the touch signals into a primary track signal; a touch signal processing module forms a track signal tending to be smooth; a touch signal filtering module performs sequence point extraction according to a time interval, and generates signal group values recognizable for an application layer; a touch response module converts the signal group values of each time point into the initial locationand width and height values of the display of a video picture; a video scaling module converts data displayed by a video; and a video display module renders pictures obtained by the scaling of the video at each time point on a display screen until the processing of the signal group values of each time point is finished. By the method, the previewing and selective playing of the video can be realized in response to the multipoint touch operations of the user, and the operating experiences of the user are improved.

Description

【Technical field】 [0001] The invention relates to a video zooming technology, in particular to a video zooming technology based on multi-touch technology. 【Background technique】 [0002] People are not unfamiliar with touch technology. Most ATMs in banks have touch screen functions. Many hospitals, libraries and other halls have computers with this touch technology. There are also many mobile phones, MP3 players, and digital cameras that support touch screens. However, these existing touch screens are all single-point touch, which can only recognize and support the touch and click of one finger at a time. If more than two points are touched at the same time, they cannot make a correct response. Multi-touch technology can decompose the task into two aspects of work, one is to collect multi-point signals at the same time, and the other is to judge the meaning of each signal, which is the so-called gesture recognition, so as to realize the five functions of screen recognition. ...

AI Technical Summary

Problems solved by technology

[0005] At present, touch technology is widely used on portable devices. In the future, applications on portable devices will gradually support touch control. For example, users can access picture browsers on many portable products. , web browser and other applications are implemented based on multi-touch technology. Currently, the video player zoom function implemented on portable devices is based on button-based control of video zoom, which is the screen of the device. Support touch control, and only realize single-touch function button, trigger the video player to switch the resolution of the current video playback back and forth according to several fixed zoom modes, and the resolution and width and height corresponding to these modes The ratio settings are generally fixed, and users cannot completely control the resolution and aspect ratio of the currently playing video, so that users can find a playback display mode that suits them; at the same time, it also affects the user's touch experience on touch devices. Moreover, using the button-type control, the user needs to at least be aware of the currently playing function key layout and the corresponding menu key selection, and cannot recognize the user's gesture operation

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