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Cartoon compressing method for radio network and hand-held radio equipment

A handheld device and wireless network technology, applied in the field of animation compression, can solve the problems of not too high power consumption, low CPU processing capacity, impracticality, etc., to achieve outstanding animation effects, improve effects and fidelity, and reduce redundancy The effect of residual data volume

Inactive Publication Date: 2004-01-28
ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the MPEG-4 standard is huge, the object extraction itself is difficult, and the process is complicated. Due to the low CPU processing capacity, less memory space, and low power consumption of existing wireless handheld devices, the existing wireless handheld devices It is difficult to meet the needs of the MPEG-4 animation compression method, so the MPEG-4 animation compression method is not practical on wireless handheld devices
Therefore, existing wireless networks and handheld devices such as PDAs, mobile phones, and PDA mobile phones can only transmit information such as sounds, numbers, and still images, and cannot transmit continuous media information such as animation.

Method used

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  • Cartoon compressing method for radio network and hand-held radio equipment
  • Cartoon compressing method for radio network and hand-held radio equipment

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Embodiment Construction

[0017] It can be seen from the flow chart of animation compression in Fig. 1 that the present invention uses a Flash file as a data source to obtain original frames therefrom. Keyframes are extracted from the original frame based on color conversion. Afterwards, differential processing is performed on key frames, and the result is saved in PNG package format, and the PNG file and the player are packaged together. The present invention is described in further detail below, and the present embodiment comprises the following steps successively:

[0018] 1. Take the Flash file as the data source, extract the original frames from it, and save these original frames in the format of color BMP image files. The screenshot module can be called to extract the original frame, and the user selects a SWF file to be converted, and then automatically opens the playback, and intercepts the playback content in the playback window, and saves the playback content as continuous image files at spe...

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Abstract

The cartoon compressing method uses Flash file as data source to obtain primal frames. The primal frames are color converted and extracted to obtain key frames, the key frames are differential processed, processed results is stored in PNG package format and the PNG file and the broadcaster are packaged. The compressed cartoon image data can be transmitted in radio communication network and displayed in hand held radio equipment. The present invention makes it possible to transmit continuous media information in PDA, cellphone and PDA cellphone.

Description

technical field [0001] The invention relates to a animation compression method, in particular to an animation compression method suitable for wireless networks and wireless handheld devices such as PDAs, mobile phones, and PDA mobile phones. Background technique [0002] Image is an extremely important medium in multimedia, and image plays an important role in information exchange, but the amount of data after image digitization is very large; for example, the amount of data for a 24bit color image with a medium resolution of 640×480 reaches 920kbits, which is relatively large. Due to the current limited wireless communication bandwidth, the amount of data is astonishing, so the image must be compressed. Among the existing animation image compression methods, such as the GIF animation compression method, it is widely used on WEB pages and is considered to be the most friendly and compatible image format with browsers; it mainly uses global optimization, frame-to-frame Three...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/42H04N19/85
Inventor 万享胡源严更真胡胜发
Owner ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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