Retinal stimulator image processing method, device and retinal stimulator
An image processing device and image processing technology, applied in image data processing, image coding, instruments, etc., can solve the problems of limited number of stimulating electrodes and inability to apply retinal stimulators, etc., and achieve the effect of improving quality and increasing compression ratio
Active Publication Date: 2019-01-04
SHENZHEN SIBIONICS CO LTD
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[0004] However, the initial image collected by the camera device of the retinal stimulator is usually a million-level pixel, and the resolution of the current retinal stimulator, that is, the number of stimulating electrodes of the implant is relatively limited (for example, 60 electrodes), which is far lower than The number of pixels in the initial image
In this case, ordinary image processing methods for the initial image captured by the camera device cannot be applied to such a low-resolution retinal stimulator
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[0030] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. In the disclosure, the same symbols are assigned to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of dimensions between components, the shape of components, and the like may be different from the actual ones.
[0031] In addition, subheadings and the like involved in the following description of the present disclosure are not intended to limit the content or scope of the present disclosure, but are merely used as a reminder for reading. Such subtitles can neither be understood as used to divide the content of the article, nor should the content under the subtitle be limited to the scope of the subtitle.
[0032] figure 1 is a structural schematic diagram of the retinal stimulator involved in the present disclosure. The retinal stimulator of the present disclosure can...
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The present disclosure relates to an image processing method of a retinal stimulator, comprising steps: an initial image having a predetermined number of pixels is obtained; a Gray-scale image is obtained by gray-scale processing of the initial image; the gray-scale image is compressed to obtain a target image having a target pixel number. The compression process includes determining a total compression ratio based on a predetermined pixel number and a target pixel number; determining compression steps and compression ratios of each step, determining compression windows of a prescribed size according to the pixel numbers and compression ratios of each step in the compression processing of each step, and performing gray-scale transformation on each pixel in the compression windows; calculating an average gray value of each pixel of a gray image in the compression window by sliding the compression window, generating pixel points having the average gray value, and sequentially combining the generated pixel points to form an image having a predetermined number of pixels; according to the number of compression steps, the compression processing of the above steps being repeated. The present disclosure is adaptable to low resolution retinal stimulators.
Description
technical field [0001] The present disclosure specifically relates to an image processing method and device of a retinal stimulator and the retinal stimulator. Background technique [0002] Retinal diseases such as RP (retinitis pigmentosa), AMD (age-related macular degeneration), etc. are important blinding diseases, and patients suffer from vision loss or blindness due to blockage of light-sensing pathways. [0003] With the research and development of technology, there have been technical means of using retinal stimulators and the like to repair the above-mentioned retinal diseases. Existing retinal stimulators generally include a camera device arranged outside the patient's body, a video processing device and an implant placed in the patient's eyeball. The external camera device captures images and converts the obtained images into visual signals. The video processing device processes the visual signals and sends them to the implant. The implant converts the received pr...
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Login to View More IPC IPC(8): G06T9/00A61N1/36A61N1/05
CPCA61N1/0543A61N1/36046A61N1/36057G06T9/00
Inventor 陈大伟王追陈志钟灿武
Owner SHENZHEN SIBIONICS CO LTD