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Image decompression method and device for executing same

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

Active Publication Date: 2022-06-03
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 objectives, technical solutions and advantages of the present invention more clearly understood, 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 the same for the previously proposed image lossless compression method that can process high data bandwidth in real time and greatly reduce the difficulty of transmission and storage, so as to be used for lossless reconstruction Images for follow-up research and practical use.

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

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Abstract

An image decompression method and a device for executing it, wherein the image decompression method uses the original pixel data of the first row in a frame of image as the initial reference data, and includes the following steps: Step 1. Read and judge the i-th row of a frame of image after compression Whether each compressed pixel data in the row is within the preset threshold range; if so, add the compressed pixel data to the data of the same address in the reference data; if not, read the pixel address corresponding to the compressed pixel data Corresponding non-compressed pixel data to be added to the data of the same address in the reference data; Step 2, judge whether the i value is equal to the total number of rows in the one frame image; if so, then complete the decompression of the one frame image; If not, set i=i+1 and return to step 1; where the initial value of i is set to 2. The image decompression method proposed by the invention is simple in hierarchy, clear in meaning and easy to implement, and can quickly realize image lossless recovery and reconstruction for specific compressed data streams.

Description

technical field [0001] The invention belongs to the technical field of image information processing, and more particularly relates to an image decompression method and a device for executing the same. Background technique [0002] Image sensors have been widely used in scientific research, industrial production, medical and health, national defense and military and other fields. With the continuous improvement of image resolution and image frame rate, humans can observe more subtle object features or more transient 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 of multiplying the amount of image data and data transmission bandwidth. Massive image data and ultra-high data transmission bandwidth have brought a series of technical difficulties for subsequent image transmission, storage and processing. SUMMARY OF THE...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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