Cartoon compression and decompression method based on wireless handhold equipment

Abstract

The invention discloses an animation compression and a decompression method based on a wireless handheld device, which comprises the following steps: (1) an animation compression device is responsible for compressing original animation data into animation data through a specific algorithm and packaging the animation data into an animation file; (2) the animation compression device transmits the compressed data to the memory of the wireless handheld device through an output device; (3) during display, the wireless handheld device decompresses and reduces the animation data through a specific decompression algorithm and then sends the animation data into a display device for display. The method provided by the invention adopts a local pairwise XOR method between frames, sufficiently mines the relevance between the animation frames and improves a compression ratio. The invention which maximally retains the original effects of the animation without sacrificing animation quality is a good solving scheme for animation playing in the wireless handheld device.

Description

technical field [0001] The invention relates to a graphics compression and decompression method, in particular to a animation compression and decompression method based on a wireless handheld device. Background technique [0002] Currently, various portable electronic devices are widely used in our daily life, such as mobile phones, PDAs, palmtop computers and the like. With the continuous development of multimedia technology, due to its various acousto-optic effects, playing these multimedia information on the above-mentioned portable electronic devices is a common expectation of the majority of users. [0003] Current wireless handheld devices such as mobile phones and PDAs cannot be compared with PCs, and cannot be compared with PCs in terms of computing performance and reading speed. The basic requirement of animation is to play several frames continuously, resulting in a large animation content that is not suitable for transmission, so when saving the animation content...

AI Technical Summary

Problems solved by technology

[0008] At present, the usual compression algorithm in wireless handheld devices is to use the difference between frames, and only save the difference relative to the previous frame. In this way, many small rectangular pictures of different sizes will be generated during the animation generation process. Due to the limitations of the processing speed of wireless devices, the playback speed of the animation is too slow, and the above-mentioned traditional animation compression method needs to sacrifice the color depth of the animation and the playback quality of the animation.

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