A method and system for realizing dynamic two-dimensional subtitles through data array

Abstract

The invention discloses a method and system for realizing dynamic two-dimensional subtitles through a data array, and mainly relates to the production and processing of subtitle special effects in the field of radio and television program production and broadcasting. The method includes: 1) determining the subtitle window resolution ; 2) set up the system processing array unit according to the subtitle window resolution, and record the unit assignment corresponding to each frame in the special effect process in the unit, and become the special effect data array; 3) set up the system special effect data array with the frame variable as the key word Unit database; 4) Read the database sequentially in frame order. The system includes: a subtitle window information reading unit, a special effect data array generating unit, a special effect data array unit database building unit, and a frame reading unit. Subtitle window files can be set more flexibly; through the establishment of special effect data arrays, the actual pixel attribute changes in the subtitle window can be recorded, and the establishment of the corresponding database can be completed. For the set subtitle window, different Calculate the assignment. A duty cycle optimization method is provided, so that the pixels not assigned in the subtitle window are separated from the overall database and assigned uniformly, thereby reducing the number of pixels assigned in the actual subtitle window.

Description

technical field [0001] The invention relates to the production and broadcasting of program subtitles and related technical fields, in particular to a method and system for realizing dynamic two-dimensional subtitles through data arrays. 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 the GPU of t...

AI Technical Summary

Problems solved by technology

[0005] In the production of 3D subtitle deformation, large-capacity storage space and fast running speed are required in the synthesis process, so the requirements for graphics card and GPU are relatively high, and the system is wasted in the process of simple special effect synthesis , at the same time, there are also many restrictions on the playback device, such as operating speed and processing power, which limit the production and use of 3D subtitle deformation effects.

[0006] At the same time, in the existing subtitle deformation animation processing process, the amount of calculation is directly related to the resolution of the subtitle window. In the process of high-resolution and large-area subtitle image processing, a large amount of system resources will be occupied, and the calculation speed will cause problems. Subtitle synthesis takes a long time and cannot meet the needs

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