Image Compression Method for Image Acquisition in Biological Cavity
An image compression and image acquisition technology, which is applied in the field of medical image processing, can solve the problems of high system operation complexity, low compression ratio, and reduce the subjective quality of restored images, achieve high image compression ratio, reduce system operation complexity, and facilitate The effect of reading images
Active Publication Date: 2016-02-24
TSINGHUA UNIV
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Existing technologies applied to image compression mainly include the following two categories: 1. Lossless / quasi-lossless image compression. This type of image compression method can provide higher restored image quality, but its compression ratio is relatively low, resulting in system calculations in the body. High complexity; 2. Lossy image compression methods based on block transformation, quantization and entropy coding. This type of image compression method can provide a higher image compression ratio. Although the image compression ratio is improved to a certain extent, at the same time , the restored image introduces block effects, reducing the subjective quality of the restored image
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[0040] The specific implementation of the invention will be further described below in conjunction with the drawings and embodiments. The following examples are only used to illustrate the present invention, but not to limit the scope of the present invention.
[0041] Flow chart as figure 1 An image compression method for image acquisition in a biological body cavity shown in, mainly includes the following steps:
[0042] S1. Classify the collected original image pixels and perform orthogonal transformation to obtain the frequency coefficient matrix; this step mainly includes:
[0043] S101. Classify the collected original image pixels according to the color space; in this embodiment, the classification is performed based on the RGB (Red, Green, Blue, red, green, and blue) three-color space. For example, the data of the initial image is obtained, and the initial image The data is the image data represented by the RGB color mode, where each pixel of the image contains a value that ...
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The invention relates to the technical field of medical image processing, in particular to intracavity image acquisition technology of a living body and more particularly an image compression method oriented to intracavity image acquisition of the living body. The image compression method oriented to intracavity image acquisition of the living body comprises the following steps of: acquiring a frequency coefficient matrix of an original image first; secondly, rearranging the frequency coefficient matrix subjected to quantization processing and carrying out entropy coding on the frequency coefficient matrix; thirdly, decoding frame data formed by the frequency coefficient matrix subjected to entropy coding and reconstructing an image; and finally carrying out deblocking effect processing on the obtained reconstructed image. The image processing method disclosed by the invention has the capabilities of providing a higher image compression rate, reducing the system algorithm complexity in the body, improving the subjective quality of a restored image and providing convenience for a doctor to read the image, thereby providing powerful technical support for acquisition and processing of medical images.
Description
Technical field [0001] The invention relates to the technical field of medical image processing, in particular to a biological body cavity image acquisition technology, and in particular to an image compression method for image acquisition in a biological body cavity. Background technique [0002] The wireless endoscope system is an important system for collecting images in biological cavities. Its appearance not only brings great convenience to the examination of the gastrointestinal tract, but also eliminates the pain of the patients undergoing the examination, and can be used for routine examinations. The blind area of the small intestine that cannot be inspected by endoscopy. [0003] In the wireless endoscope system, image compression technology can effectively improve the performance bottleneck of the system, for example, increase the frame rate of image acquisition and reduce the power consumption of the in-vivo system. The existing technologies used in image compression ...
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IPC IPC(8): H04N19/91H04N19/86
Inventor 谷荧柯谢翔李国林孙天佳王志华
Owner TSINGHUA UNIV