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marine sextant
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marine sextant
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marine sextant
航海六分仪
手持式,用以测量天体高度或物标夹角的精密光学仪器,因其分度的弧长约为圆周长的1/6而得名,是古老的用以测定船舶位置的航海仪器。
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image editing
image element
image encoding
image enhancement
image examination
image feature extraction and optimization
image field
image file format
image filtering
image force
image formation
image formation, imagery, imaging
image-forming device
image fourier transform
image frequency
image function
image fusion
image geoanalysis
image group
image guidance
image-guided radiation therapy
image hash
image height
image histogram equalization
image indexing
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