A presentation method for an image local enlarging function in video call

A technology for video calls and video images, applied in image communication, two-way working systems, electrical components, etc., can solve the problems of inability to obtain video images, reduced area clarity, and insufficient image clarity.

Inactive Publication Date: 2015-12-02
宁波菊风系统软件有限公司
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Problems solved by technology

However, the video call is limited by network conditions such as bandwidth, delay, and jitter, and users often cannot obtain this part of clear video images.
Images processed by post-processing algorithms such as interpolation and magnification will also reduce the definition of this area, so they cannot achieve a good rendering effect
[0003] The Chinese invention patent with the publication number CN101951493A (application number 201010292166.7) discloses a mobile terminal and a method for partially enlarging its image. According to user instructions, the display area to be enlarg

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  • A presentation method for an image local enlarging function in video call

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0014] For the presentation method of the partial zoom-in function of an image in a video call provided by the present invention, see figure 1 , the specific implementation steps are as follows:

[0015] Step 1. During the video call, Party B sends a request for a partial image of interest to Party A who is in the video call with Party B: on the PC, the area of ​​interest can be selected by mouse area selection; on the mobile terminal, two fingers can be used in different directions Twist to select the area of ​​interest, the center of the two fingers is the center point of the area of ​​interest, and the ratio of the distance between the two fingers away from the screen and the distance of touching the screen is the screen magnification factor;

[0016] Considering that the delay of the network will cause a certain delay in the received enla...

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Abstract

The invention relates to a presentation method for an image local enlarging function in video call. The characteristics are that the method comprises the following steps: step 1, in a video call process, a party B sends a request of being interested in a partof an image to a party A who is in video call with the party B; simultaneously, the party B employs a linear interpolation enlargement method to perform local enlargement and displaying on the image which is stored in a video buffer area and of which the part the party B is interested in ; step 2, after the party A who is in video call with the party B receives the request of party-B being interested in the part of the image, the video image acquisition resolution of a camera of the party A is raised and the part which the party B is not interested is clipped, and then only the part of the image which the party B is interested in is sent to the party B; and step 3, after the B receives the part of the image which the party B is interested in, the party B covers the part of the image which the party B is interested in with an original linear interpolation to enlarge the image so as to present the image. Compared with the prior art, the presentation method of the invention is advantaged by being able to obtain the part of the image which the party B is interested in in a relatively clear mode.

Description

technical field [0001] The invention relates to a method for presenting a partial zoom-in function of an image in a video call. Background technique [0002] With the wide application of video calls in various fields, users have higher and higher requirements for video quality. Generally, a user has a local area of ​​interest during a video call. In other words, most of the user's attention is focused on this area, so there is a higher requirement for the clarity of this part of the image. However, the video call is limited by network conditions such as bandwidth, delay, and jitter, and users often cannot obtain this part of clear video images. Images processed by post-processing algorithms such as interpolation and magnification will also reduce the definition of this area, so they cannot achieve a good rendering effect. [0003] The Chinese invention patent with the publication number CN101951493A (application number 201010292166.7) discloses a mobile terminal and a met...

Claims

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Application Information

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IPC IPC(8): H04N21/4788H04N7/14
CPCH04N21/4788H04N7/14
Inventor 张仝辉龚忠耀钱晓炯董泽
Owner 宁波菊风系统软件有限公司
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