Method for enlarging video call visual angle on mobile terminal and mobile terminal thereof

Abstract

The invention relates to a method for enlarging a video call visual angle on a mobile terminal, which comprises the following steps: a, starting a video call, and receiving sent video images by a radio frequency module; b, analyzing the video images received in the step a by a baseband module and judging whether the video images are full screen videos; c, determining a corresponding cutting algorithm by the baseband module according to the analysis result in the step b; d, sending the cutting algorithm determined by the step c to a digital signal processing module by the baseband module, and cutting the video images received in the step a by the digital signal processing module; e, performing twiddle operation on the images cut in the step d by the digital signal processing module; f, sending image data after the processing in the step e to an LCD display module by the digital signal processing module, if the video call continues, turning to the step a, otherwise, turning to a step g; and g, ending the call. The steps from a to f are repeated until the call is ended in the step g. With the method, the function of enlarging the video visual angle on the mobile terminal can be achieved.

Description

technical field [0001] The invention relates to a mobile terminal, in particular to a method for ensuring video quality in a 3G standard mobile terminal and the mobile terminal. Background technique [0002] The current 3G standards include China's TD-SCDMA, WCDMA (Wideband CDMA) from Europe and Japan, and CDMA2000 from the United States. Currently, 3G standard mobile terminals can implement video calls, and can see the environment images of the other party during the call. At present, due to the limitation of the rate, the pixel of the image sensor used in TD-SCDMA video calls is basically 300,000, that is, the width and height are 640 and 480 pixels respectively; while the size of the terminal display LCD is generally 176×220 or 240 ×320 size, therefore, the opponent’s background image received from the network needs to be cropped, and there are generally two methods of cropping, both of which often reduce the viewing angle. Taking the LCD size of 176×220 as an example, ...

AI Technical Summary

Problems solved by technology

Using either of the current aforementioned two methods will greatly reduce the horizontal or vertical viewing angle, which will cause the displayed image to be out of balance and greatly affect the visual effect

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