| 摘要 |
Methods, systems and apparatus for determining a level of a sample are provided. An image of a sample housed in a container is captured, wherein the image is represented as a two dimensional array of intensities of light. An area of interest is extracted from the image. A filter is applied to the area of interest. The filtered area is collapsed into a one dimensional array. The one dimensional array is masked. The level of the sample in the container is determined based on the masked one dimensional array. Numerous other aspects are provided. |
