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Subtitle rendering efficiency bottle neck automatically positioning method based on template and parameter step length

An automatic positioning and parameter technology, applied in the field of subtitle editing and broadcasting, can solve the problems of heavy workload, unable to find out the rendering process, unable to improve and optimize the rendering algorithm to play a guiding role, etc.

Inactive Publication Date: 2009-03-25
CHINA DIGITAL VIDEO BEIJING
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Problems solved by technology

This subjective evaluation method requires a lot of human work, and at best it can only draw a "yes" or "no" conclusion. It is impossible to find out which links in the rendering process are bottlenecks, and it is impossible to improve the technical rendering algorithm. and optimization play a guiding role
[0016] According to the above analysis, it can be seen that locating the bottleneck that affects the efficiency of the rendering algorithm is very important for the subtitle system, and plays a guiding role in the improvement and optimization of the technology. However, there is no objective method to affect the efficiency of the rendering algorithm. Accurate positioning of the bottleneck

Method used

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  • Subtitle rendering efficiency bottle neck automatically positioning method based on template and parameter step length
  • Subtitle rendering efficiency bottle neck automatically positioning method based on template and parameter step length
  • Subtitle rendering efficiency bottle neck automatically positioning method based on template and parameter step length

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Embodiment Construction

[0056] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0057] The rendering of a subtitle system is usually divided into two aspects: static rendering and dynamic rendering. "Static rendering attributes" refer to the collection of all parameters such as surface fill, full edge, side edge, shadow, relief, light emission, and projection of a subtitle object. ; "Dynamic rendering attribute" refers to the collection of all parameters of a subtitle object's 2D and 3D effects; "Static rendering source" refers to the character subtitle object that has been given static rendering attributes; "Dynamic rendering source" refers to is a vector subtitle object that has been given dynamic rendering properties. A subtitle system will design two rendering engines: a static rendering engine and a dynamic rendering engine, which are used for static subtitle rendering and dynamic special effects broadcasting respec...

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Abstract

The invention relates to a caption editing and broadcasting technology of a television program making and broadcasting mechanism of the radio and television broadcasting field, in particular to a caption rendering efficiency bottleneck automatic positioning method which is based on a template and the parameteric step size. The method evaluates the efficiency of a caption system in the two aspects of caption static rendering and dynamic rendering through the objective data, finds a bottleneck of the rendering aspect through the efficiency difference between the adjacent two parameter values through the rendering attributes and provides an objective basis for the improvement of a rendering algorithm.

Description

technical field [0001] The invention relates to a subtitle editing and broadcasting technology of a TV program production and broadcasting organization in the field of radio and television, in particular to a method for automatically locating the bottleneck of subtitle rendering efficiency based on a template and a parameter step size. Background technique [0002] With the development of the TV industry, the role of TV subtitles in TV is becoming more and more important, the average number of daily broadcasts is increasing, the forms of subtitles are broadcast in various forms, and the production of subtitles is also more exquisite. Subtitles are also convenient for channel program packaging and enhance the overall image. And it can also interact with the audience through the subtitle platform to provide value-added services. [0003] In today's information age, faced with the explosive increase of information, TV media must release a large amount of graphic and text infor...

Claims

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Application Information

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IPC IPC(8): H04N5/278G06T15/10
Inventor 吴正斌
Owner CHINA DIGITAL VIDEO BEIJING
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