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Transparent OSD software implementation method

A software-implemented, transparent technology, applied to electrical components, color TV parts, TV system parts, etc., can solve problems such as low efficiency, large resource occupation, video delay, etc., to reduce the amount of calculation, improve Efficiency, the effect of reducing the amount of calculation

Inactive Publication Date: 2019-07-02
镇江市志捷软件开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Software OSD is implemented through software algorithms, does not depend on a specific hardware platform, and can be implemented in video pre-processing, with low cost and good flexibility. However, the traditional software OSD implementation method is low in efficiency and takes up a lot of resources, which is easy to cause video delay. Time

Method used

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  • Transparent OSD software implementation method
  • Transparent OSD software implementation method
  • Transparent OSD software implementation method

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Embodiment Construction

[0023] In order to clearly illustrate the technical characteristics of the method, the method is described below through a specific implementation manner.

[0024] Since obtaining the character internal code of the character according to the edited OSD character content belongs to the prior art for the character type (Font-Based) OSD, details are not repeated here.

[0025] like image 3 As shown, it is a 16×16 Chinese character "上" character lattice with a row and column number statistics of 1 in the middle

[0026] as follows:

[0027] (1,8), (2,8), (3,8), (4,8), (5,8), (5,12), (6,8), (6,9), (6 ,10), (6,11), (6,12), (6,13), (7,8), (8,8), (9,8), (10,8), (11,8 ), (12,8), (13,8), (14,8), (14,14), (15,1), (15,2), (15,3), (15,4), (15,5), (15,6), (15,7), (15,8), (15,9), (15,10), (15,11), (15,12), (15 ,13), (15,14), (15,15), a total of 36.

[0028] According to the row and column number information of the above statistics, according to figure 1 The logic judgment can establi...

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Abstract

The invention discloses a transparent OSD software implementation method. The method comprises the steps of obtaining the character internal codes of characters according to edited OSD character content; obtaining a character dot matrix of the character from a word stock by utilizing the content of the character; scanning the character dot matrix, and recording the row and column numbers of the scanned bits with the bits being 1; establishing a superposition coordinate system which takes the upper left corner as the coordinate origin, takes the character dot matrix bit as the dimension and takes the rightward direction and the downward direction as the positive axes at the current edited OSD character display position; and setting in the superposition coordinate system by taking the corresponding row and column numbers as coordinates. According to the method, the transparent OSD is superposed on the real-time video by utilizing a pure software method, so that the method has editabilityand high response speed.

Description

technical field [0001] The invention relates to a transparent OSD software realization method. Background technique [0002] OSD is the abbreviation of on-screen display, that is, the screen menu adjustment method. Generally, after pressing the Menu button, a rectangular menu of various adjustment item information of the display will pop up on the screen. Through this menu, various working indicators of the display, including color, mode, geometric shape, etc., can be adjusted to achieve the best use status. [0003] With the popularization and application of digital video technology, OSD implementation technology has also been developed rapidly. In terms of implementation, OSD can be divided into hardware OSD and software OSD. Early hardware OSD needs to build a separate OSD circuit, including OSD character superposition chip, character memory, etc. The disadvantage is that the hardware circuit design is more complicated and inconvenient to use. Poor stability, and most O...

Claims

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Application Information

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IPC IPC(8): H04N5/445H04N21/431H04N21/485H04N21/81
CPCH04N21/4312H04N21/47H04N21/485H04N21/8173
Inventor 汪梅花
Owner 镇江市志捷软件开发有限公司
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