Multi-frame special effect video acquisition method, terminal and computer readable storage medium

A technology of video acquisition and storage medium, applied in the field of communication, can solve problems such as long time

Pending Publication Date: 2020-06-23
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention lies in the problem that it takes a long time to produce a video with special effec...

Method used

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  • Multi-frame special effect video acquisition method, terminal and computer readable storage medium
  • Multi-frame special effect video acquisition method, terminal and computer readable storage medium
  • Multi-frame special effect video acquisition method, terminal and computer readable storage medium

Examples

Experimental program
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no. 1 example

[0071] In order to solve the existing problem that it takes a long time to take a lot of synthesized photos and then synthesize the photos into a video when making a video with special effects, this embodiment provides a multi-frame special effect video acquisition method, such as image 3 as shown, image 3The basic flow chart of the multi-frame special effect video acquisition method provided in this embodiment, the multi-frame special effect video acquisition method includes:

[0072] S301. Obtain a transformation matrix according to the image registration between the acquired image frames.

[0073] In this embodiment, multiple image frames may be acquired in real time according to the terminal camera, or the terminal may receive multiple image frames sent by other terminals, and then perform image registration between the acquired image frames to obtain a transformation matrix. It can be understood that image registration is the process of converting different images of t...

no. 2 example

[0086] In order to facilitate understanding, this embodiment uses a more specific example to describe the method for acquiring multi-frame special effect video, as Figure 4 as shown, Figure 4 It is a detailed flow chart of the multi-frame special effect video acquisition method provided in the second embodiment of the present invention. The multi-frame special effect video acquisition method includes:

[0087] S401. Acquire a plurality of continuously captured image frames from a terminal camera.

[0088] S402. Perform image registration on any two adjacent image frames to obtain a corresponding transformation matrix.

[0089] Assuming that 8 image frames are included, image registration is performed on the first image frame and the second image frame, and the transformation matrix 1-2 is obtained by using the similarity-based centrosymmetric local binary mode; similarly, the transformation matrix 2-3 is obtained, Transformation matrix 3-4...Transformation matrix 7-8, all ...

no. 3 example

[0101] This embodiment provides a multi-frame special effect video acquisition method; it includes two processing flows, and is completed in two threads respectively, which are respectively a registration thread and a multi-frame synthesis thread; Figure 5 As shown, the registration thread processing flow includes:

[0102] S501. Acquire a current image frame from a camera.

[0103] S502. Perform image registration using the current image frame and the previous image frame to obtain a transformation matrix.

[0104] S503. Save the transformation matrix in a shared cache queue.

[0105] Steps S501 to S503 are repeated.

[0106] Such as Figure 6 As shown, the multi-frame synthesis thread processing flow is as follows:

[0107] S601. Acquire multiple image frames from the camera, and store them in an image frame buffer queue.

[0108] S602. Superimpose the current image (assumed to be the 10th frame) and the 9th frame image, according to the transformation matrix of the 10...

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Abstract

The invention discloses a multi-frame special effect video obtaining method, a terminal and a computer readable storage medium, and the method comprises the steps: obtaining a transformation matrix according to the image registration between obtained image frames; according to the transformation matrix, accumulatively superposing the previous synthetic frame obtained by superposing with the current image frame in sequence; and obtaining a special effect video according to the superposed images. A video with a special effect is manufactured in the prior art. The invention further discloses a terminal and a computer readable storage medium, by implementing the scheme, the original data frame of the previous synthesized photo is repeatedly used, so that the shooting time is reduced, and the purpose that the video with multiple frames of special effects in each frame can be shot only in the same time as the common video is achieved.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically, to a multi-frame special-effect video acquisition method, a terminal and a computer-readable storage medium. Background technique [0002] There are many "multi-frame special effects" photo shooting methods. They take multiple frames of images continuously, and synthesize the multiple frames of images into a photo through some algorithms. The final result of the special effects on composite photos is static. If you want to get a video with special effects, you need to shoot a lot of these composite photos continuously, and then combine the photos into a video, which takes a long time. , and for the video effect, a tripod must be used for auxiliary shooting during shooting. Contents of the invention [0003] The technical problem to be solved by the present invention lies in the problem that it takes a long time to make a video with special effects. Aiming a...

Claims

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Application Information

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IPC IPC(8): H04N5/262G06T3/00
CPCH04N5/2621G06T3/0068
Inventor 陈国庭
Owner NUBIA TECHNOLOGY CO LTD
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