Method and system for square object mode transformation of two-dimensional caption
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A subtitle and four-way technology, applied in the field of program subtitle production and broadcasting, can solve problems such as slow calculation speed and lack of cohesive coordination
Inactive Publication Date: 2012-10-10
CHINA DIGITAL VIDEO BEIJING
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[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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[0024] see figure 1 , 2 , the first embodiment of the method of the present invention, the present invention provides a method for deforming two-dimensional subtitles in the form of square objects:
[0025] A method for deforming two-dimensional subtitles in a square way, the steps specifically include: first, obtaining the basic size parameter of the original subtitle window: the original subtitle window length value X 0 , Original subtitle window width value Y 0 , and get the basic ratio parameters; such as: aspect ratio value X 0 / Y 0 ;
[0026] Afterwards, according to the basic size parameter of the original subtitle window, this window is divided into an even number of basic units, and the number of division units in the illustration is 4; and according to the basic parameter of the subtitle window, the basic ratio parameter is obtained;
[0027] The basic subtitle window is numbered, and according to the task sequence, the deformation task execution sequence of eac...
Embodiment 2
[0030] see image 3 , the second embodiment of the method of the present invention is realized through the present invention. The present invention provides a method for deforming two-dimensional subtitles in a four-way manner, which specifically includes: an original subtitle information collection unit, a window division unit, and a rendering and assignment unit, wherein the original subtitle information The acquisition unit and the window division unit divide the window into an even number of basic units according to the basic size parameters of the original subtitle window, and obtain the basic ratio parameters according to the basic parameters of the subtitle window, and assign values through the rendering assignment unit.
[0031] Wherein, the original subtitle information collection unit is used to obtain the basic size parameter of the original subtitle window, and obtain the basic ratio parameter.
[0032]Wherein, the rendering assignment unit is configured to rende...
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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 ...
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