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Image decompression method and device for executing same

A decompression and image technology, applied in image communication, digital video signal modification, electrical components, etc., to achieve the effect of easy implementation, clear meaning, and high decompression error tolerance.

Active Publication Date: 2018-02-02
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

[0003] However, with the rapid improvement of image performance parameters, it also brings a huge challenge that the amount of image data and data transmission bandwidth increase exponentially.

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  • Image decompression method and device for executing same
  • Image decompression method and device for executing same
  • Image decompression method and device for executing same

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] The purpose of the present invention is to propose a corresponding image decompression method and a device for performing lossless reconstruction for the previously proposed image lossless compression method capable of real-time processing of high data bandwidth and greatly reducing the difficulty of transmission and storage Images, for follow-up research and practical use.

[0025] Specifically, the present invention proposes an image decompression method for decompressing a compressed and encoded data stream, which includes the original pixel data of the first row of each frame of image, the compressed pixel data and uncompressed pixel data of each subsequent row, The decompression method uses the original pixel ...

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Abstract

Disclosed are an image decompression method and a device for executing the same. Taking the first row of original pixel data in a frame of image as initial reference data, the image decompression method comprises the following steps: step 1, reading and judging whether each compressed pixel data in the i row after the frame of image is compressed is within a preset threshold range; if so, adding the compressed pixel data with the data at the same address in the reference data; otherwise, reading non-compressed pixel data corresponding to the pixel address of the compressed pixel data, and adding the non-compressed pixel data with the data at the same address in the reference data; and step 2, judging whether the value of i is equal to the total row number in the frame of image, if so, completing decompression of the frame of image, otherwise, setting i=i+1, and returning to step 1, wherein the initial value of i is set to 2. The image decompression method is simple in level, definite in significance and easy to implement, and can fast realize non-destructive recovery and reconstruction for an image of specific compressed data stream.

Description

technical field [0001] The invention belongs to the technical field of image information processing, and more specifically relates to an image decompression method and a device for executing it. Background technique [0002] Image sensors have been widely used in various fields such as scientific research, industrial production, medical and health care, national defense and military affairs. With the continuous improvement of image resolution and image frame rate, human beings can observe more subtle object features or more short-term physical phenomena, which greatly enriches human observation methods and improves human cognition. [0003] However, with the rapid improvement of image performance parameters, it also brings a huge challenge that the amount of image data and data transmission bandwidth increase exponentially. Massive image data and ultra-high data transmission bandwidth have brought a series of technical difficulties for subsequent image transmission, storage...

Claims

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Application Information

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IPC IPC(8): H04N19/172H04N19/42H04N19/85
CPCH04N19/172H04N19/42H04N19/85
Inventor 秦琦王加庆吴南健
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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