Method and system for square object mode transformation of two-dimensional caption

Abstract

The invention, which mainly relates to processing on a caption special effect in the broadcast television program manufacturing and broadcasting fields, discloses a method and system for square object mode transformation of a two-dimensional caption. The method comprises: (1), obtaining basic dimension parameters of an original caption window and basic scale parameters; (2), dividing the window into an even number of basic units according to the basic dimension parameters of the original caption window and obtaining basic scale parameters based on the basic parameters of the caption window; (3), numbering the basic caption windows and formulating a transformation task execution sequence of all the basic caption window based on a task order; and (4), collecting a pixel point position based on a determined fixed value of each window basic unit and obtaining a new pixel point position based on the determined fixed value parameters and a transformation function f (x, y, t). Moreover, the system consists of an original information collection unit, a window dividing unit, and a rendering assignment unit; according to basic scale parameters of an original caption window, the original information collection unit and the window dividing unit divide the window into an even number of basic units; according to the basic parameters of the caption window, basic scale parameters are obtained; and the rendering assignment unit carries out assignment. According to the invention, basic information collection of a caption window enables transformation parameters to be dynamically extracted; and division of the caption window enables coordinated displaying of different caption window units to be realized, thereby realizing a caption transformation effect.

Description

technical field [0001] The present invention relates to the production and broadcasting of program subtitles and related technical fields, in particular to a method and system for transforming two-dimensional subtitles in a four-dimensional manner. Background technique [0002] In the existing program production and broadcasting and related technical fields, in the process of program material production, in order to better express the text, a large number of subtitles need to be synthesized, especially in the production and playback of large-scale 3D films and materials. In order to obtain better effects, it is often necessary to insert special effects into subtitles. With the continuous improvement of special effects requirements, 3D effect subtitle special effects have appeared one after another. In the process of realizing 3D subtitle special effects, a large amount of data needs to be calculated. And usually will carry out a large number of calculations with the help of ...

AI Technical Summary

Problems solved by technology

[0004] In the process of 3D subtitle production and synthesis, large-capacity storage space and fast running speed are required, so the requirements for graphics card and GPU are relatively high. In the process of simple special effect synthesis, the system is wasted. At the same time, There are also many restrictions on the playback device, such as operating speed and processing power, which impose restrictions on the production and use of 3D subtitle special effects.

[0005] At the same time, in the prior art, in the process of processing a group of deformation units, it is mainly realized through separate processing, which solves the problems of slow calculation speed and incohesive coordination with each other.

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