Cartoon compressed format optimizing method based on radio hand-held equipment
A hand-held device and compressed format technology, which is applied in television, electrical components, digital video signal modification, etc., can solve problems such as wasting time, unstable installation process, and incoherent animation playback, so as to improve reading speed and shorten adjustment time. The effect of entering time
Inactive Publication Date: 2004-11-24
ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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Problems solved by technology
In the process of animation playback, if many small pictures are transferred separately, it will not only be a waste of time, but also due to the limitation of the calling speed of wireless handheld devices such as mobile phones and PDAs, the animation playback will be incoherent, causing It is difficult for users to accept
In addition, on some platforms (such as KJAVA) of wireless handheld devices such as mobile phones and PDAs, many small rectangular image files are loaded, which often leads to instability in the installation process.
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[0029] Such as figure 1 , figure 2 As shown, on the basis of the polygon that has been generated, its bounding rectangle is generated, that is, the smallest horizontal coordinate and the smallest vertical coordinate in the polygon are found, as the upper-left corner coordinates of the bounding rectangle; the largest horizontal coordinate and the largest vertical coordinate in the polygon are found , As the coordinate of the lower right corner of the bounding rectangle. At this point, you can calculate the area of the circumscribing rectangle, and then subtract the area of all the small rectangles that make up the polygon. The result is the wasted area. The smaller the area, the better. in figure 1 , figure 2 Among them, the wasted area is the same, and you can choose the principle of the least number of vertices, because the number of vertices is small, which means that there is less space fragmentation, and the remaining space is more suitable for posting larger pictures....
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An optimization method for cartoon compression format based on the radio handheld device includes the following steps: A) lining up the small picture produced in cartoon compression course in sequence from longer to shorter as per its longer edge, B) forming the polygon picture tabulation by sticking the second longer edge picture to the longest edge picture, C) selecting the optimized combination mode from the tabulation formed in step B, D) using the third longer edge picture to stick it with the optimized combination mode to form the polygon picture tabulation and repeating step C, E) repeating step D as per its rank in sequence for the other smaller pictures. The method can raise the fetching speed of the picture because it can make the picture with the minimum waste area to improve the quality of cartoon broadcasting on the radio handheld device.
Description
Technical field [0001] The invention relates to an animation compression format optimization method, in particular to an animation compression format optimization method based on a wireless handheld device. Background technique [0002] In recent years, with the continuous advancement of hardware technology, playing animation on mobile devices such as mobile phones and PDAs has increasingly become a hot spot for user needs. However, the current wireless handheld devices such as mobile phones and PDAs cannot be compared with PCs. , Reading speed and other aspects can not be compared with PC. The basic requirement of animation is to play several frames continuously, which makes the animation content very large and unsuitable for transmission. Therefore, when saving the animation content, it needs to be compressed to ensure that the user sees the continuous animation. The usual compression method uses the difference between frames and only saves the difference relative to the previo...
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IPC IPC(8): H04N19/177H04N19/20
Inventor 万享黄立新欧阳欢胡胜发
Owner ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD