Endoscope image recording system for compressing and recording endoscope image data
First Claim
Patent Images
1. An endoscope image compressing apparatus for receiving an endoscope image, compressing the endoscope image and outputting the compressed image, comprising:
- means for receiving the endoscope image while separating same into a plurality of color components,means for performing inter-image compression for each of said plural color components by making use of correlation between the images, andmeans for further performing intra-image compression by making use of correlation between said plural color components substantially at the same position in each picture,said inter-image compression means and said intra-image compression means being provided in series.
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Abstract
An endoscope image signal photoelectrically converted by an image sensing device in an endoscope is compressed by an image compressing apparatus and then recorded in a recording apparatus, whereby the number of image frames recordable in the recording apparatus can be increased. Also, the image compression is effectively performed, for example, by changing a compression ratio dependent on a quantity of respective image information contained in plural components of the endoscope image signal, whereby a quantity of information actually recorded can be reduced.
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Citations
36 Claims
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1. An endoscope image compressing apparatus for receiving an endoscope image, compressing the endoscope image and outputting the compressed image, comprising:
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means for receiving the endoscope image while separating same into a plurality of color components, means for performing inter-image compression for each of said plural color components by making use of correlation between the images, and means for further performing intra-image compression by making use of correlation between said plural color components substantially at the same position in each picture, said inter-image compression means and said intra-image compression means being provided in series. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An endoscope image compressing apparatus for receiving an endoscope image, compressing the endoscope image and outputting the compressed image, comprising:
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means for receiving the endoscope image while separating the endoscope image into three primary colors; and at least three compression means for compressing image signals associated with said three primary colors, wherein the compression means includes at least two compression means for compressing the image signals associated with two of said three primary colors, respectively, and long wavelength compression means for compressing the image signal associated with the remaining color of the longest wavelength at a compression ratio higher than compression ratios of said two compression means, wherein said long wavelength compression means, which includes smoothing means, sets a smoothing factor of said smoothing means at a maximum for an image signal corresponding to a longest wavelength. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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36. An endoscope image recording system, comprising:
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an endoscope having an observing optical system at the distal end of an insert section; image sensing means for converting an image from said observing optical system of said endoscope to an electric signal; compression means for receiving an image information signal from said image sensing means and for compressing said image information signal; digital recording means for recording said image information signal compressed by said compression means; and release operation means for generating a trigger signal to produce a still picture, said release operation means is operatively connected to said compression means, wherein said compression means compresses the image from said image sensing means in response to said trigger signal and outputs the compressed image to said digital recording means.
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Specification