“oversampling”的概念、定义、翻译、参考文献-科学参考

oversampling

Astronomy

The circumstance in which a detector has more resolution elements (e.g. pixels) than are required to sample the finest details of the object or spectrum under study. For example, if an image is taken under seeing conditions of 1″, but the CCD detector has a scale of 0″.1 per pixel, then the image is said to be oversampled.

Statistics

The deliberate selection of individuals of a rare type in order to obtain reasonably precise estimates of the properties of this type. In a population which includes such a rare type, a random sample of the entire population might result in very few (or none) of these individuals being selected. Oversampling implies the deliberate sampling of a much higher proportion of this type than of the rest of the population. This is a form of stratified sampling.

单词	oversampling
释义	oversampling Astronomy The circumstance in which a detector has more resolution elements (e.g. pixels) than are required to sample the finest details of the object or spectrum under study. For example, if an image is taken under seeing conditions of 1″, but the CCD detector has a scale of 0″.1 per pixel, then the image is said to be oversampled. Statistics The deliberate selection of individuals of a rare type in order to obtain reasonably precise estimates of the properties of this type. In a population which includes such a rare type, a random sample of the entire population might result in very few (or none) of these individuals being selected. Oversampling implies the deliberate sampling of a much higher proportion of this type than of the rest of the population. This is a form of stratified sampling.
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