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Image data compression method and interface circuit

A technology for image data and interface circuits, applied in image communication, electrical components, digital video signal modification, etc., can solve problems such as high delay, complex compression circuit, and inability to achieve high-frequency output, so as to reduce storage space and high-frequency output , the effect of reducing the delay

Active Publication Date: 2022-04-22
SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT
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  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for compressing image data and an interface circuit to solve the technical problems in the related art that the compression circuit is complicated, the delay is high, and high-frequency output cannot be realized

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  • Image data compression method and interface circuit
  • Image data compression method and interface circuit

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Embodiment Construction

[0036] The image data compression method, compression circuit, and interface circuit proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will be more apparent from the following description. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0037] figure 2 A flow chart of an image data compression method provided by an embodiment of the present invention, such as figure 2 As shown, the method may include:

[0038] Step 100: Receive image data to be compressed, and perform one-dimensional wavelet transform on the image data to be compressed by using a one-dimensional wavelet transform method to obtain transformed data.

[0039] Wherein, the image data to be co...

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Abstract

The present invention provides an image data compression method and an interface circuit. The compression method includes: receiving image data to be compressed, and performing one-dimensional wavelet transformation on the image data to be compressed by using a one-dimensional wavelet transform method to obtain transformed data; performing quantization processing on the transformed data to obtain quantized coefficients; performing zero-run coding on the quantized coefficients to obtain compressed image data. The compression method provided by the present invention has lower delay, higher output frequency and less required storage space. At the same time, the structure of the interface circuit provided by the present invention is relatively simple and occupies a small area.

Description

technical field [0001] The invention relates to the field of image data, in particular to an image data compression method and an interface circuit. Background technique [0002] In the field of image data, it is usually necessary to compress and encode the original image to eliminate redundancy. Specifically, the MIPI interface is used to receive the original image, and the compression circuit in the MIPI interface is used to compress and encode the original image, and then the compressed data is output through the MIPI interface for subsequent processing. [0003] In the related art, a method for compressing an original image mainly adopts a differential pulse code modulation (DPCM) method. as well as, figure 1 It is a structural schematic diagram of a compression circuit corresponding to a DPCM method in the related art, such as figure 1 As shown, when encoding the first two pixels of the original image, a DPCM encoder is used to directly compress and encode the first ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/63H04N19/93H04N19/42H04N19/124H04N19/172H04N19/117
CPCH04N19/63H04N19/93H04N19/42H04N19/124H04N19/172H04N19/117
Inventor 李停李林张远陈西昌张正威
Owner SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT
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