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Accession number BBBC030 · Version 1 Example images DIC image Ground truth Images The image set consists of 60 Differential Interference Contrast (DIC) images of Chinese Hamster Ovary (CHO) cells. The images are taken on an Olympus Cell-R microscope with a 20x lens at the time when the cell...

Accession number BBBC011 · Version 1 Example images Negative control: wild type Positive control: fat Biological application Images are controls from an RNA interference screen for genes affecting fat mass in the nematode C.elegans. The animals are stained with oil red O, a non-flourescentdye which...

Accession number BBBC013 · Version 1 Example images Positive Negative Biological application This 96-well plate has images of cytoplasm to nucleus translocation of the Forkhead (FKHR-EGFP) fusion protein in stably transfected human osteosarcoma cells, U2OS. In proliferating cells, FKHR is localized...

Accession number BBBC015 · Version 1 Example images Positive Negative Biological application The images are of a human osteosarcoma cell line (U2OS) co-expressing beta2 (b2AR) adrenergic receptor and arrestin-GFP protein molecules. The receptor was modified-type that generates "vesicle-type" spots...

Accession number BBBC016 · Version 1 Example images Positive Negative Description of the biological application This image set is of a Transfluor assay where an orphan GPCR is stably integrated into the b-arrestin GFP expressing U2OS cell line. After one hour incubation with a compound the cells...

To reasonably compare, or benchmark, algorithms for image analysis, researchers must agree on a common reference point—the image set's "correct" answer—and see how closely each algorithm matches it. We adopt the common term ground truth for this reference point even though it may be questionable in...

Accession number BBBC002 · Version 1 Example image Biological application Five different samples of Drosophila melanogaster Kc167 cells were stained with Hoechst 33342, a DNA stain. The last sample (labeled nodsRNA) is of wild-type cells. Each of the other four samples (labeled 48, 340, Anillin, and...

Accession number BBBC006 · Version 1 Example images Ground truth: in focus Out of focus Ground truth: foreground Biological application Since robust foreground/background separation and segmentation of cellular objects (i.e., identification of which pixels below to which objects) strongly depends on...

Accession number BBBC019 · Version 2 Example images DIC image Ground truth DIC image Ground truth Biological application The wound-healing assay is considered the gold standard for studying cell motility and migration. The assay is performed by time-lapse imaging (usually by phase contrast, or...

Accession number BBBC024 · Version 1 Example images 3D image 3D foreground Biological application One of the principal challenges in counting or segmenting nuclei is dealing with clustered nuclei. To help assess algorithms' performance in this regard, this synthetic image set consists of four...