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WU-BIMAC / NBOMicroscopyMetadataSpecs

The 4DN + BINA Tiered System of Microscopy Metadata Guidelines was developed by the 4DN Imaging Standards Working Group in collaboration with the BINA Data Management and Quality Control Working Group (https://www.bioimagingna.org/qc-dm-wg) for documenting microscopy experiments and assessing the quality of image data.
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STRAMBIO-NITSCHKE-HAMMER --- Everytime Pixel is mentioned it should be distinguished between Pixel(Dexel) vs. Pixel(Image) #72

Open strambc opened 2 years ago

strambc commented 2 years ago

This change affects multiple fields and descriptions.

Justification for the addition (brief and compelling):

When discussing the Camera model with WG2, WG7 and Camera Manufacturers in the context of QUAREP-LiMi the need to distinguish between Dexel vs. Pixel

Dexel ("detector element") is the analog of a pixel ("picture element") but native to a detector rather than a visible picture.[6][7]

That is, it describes the elements in a detector, which may be processed, combined, resampled, or otherwise mangled, before creating a picture.

As such, there may not be a one-to-one correspondence between the pixels in an image, and the dexels used to create that image.

For example, cameras labeled as "10-megapixel" can be used to create a 640x480 picture.

Using dexel terminology, the camera actually uses 10 million dexels to create a picture with 640x480 pixels.

strambc commented 2 years ago

@mathomH

strambc commented 2 years ago

Problem: based on Wikipedia the term Dexel is not univocal and can be used in two ways. This might add to the confusion.

strambc commented 2 years ago

Alternative proposal for change:

Pixel(Detector) vs. Pixel(Image)

BrittaSD commented 2 years ago

dexel = detector element, is the minimal physical entity collecting data in an imaging device. pixel = picture element, is a digital/virtual element of an image; which is the best way to make this clear? alternative proposal to combine: Pixel(Detector element, dexel), vs Pixel(Image element, pixel)

strambc commented 2 years ago

@BrittaSD thank you for your input. Your proposal is clearly the best because it spells it out very explicitly. However, we have to also I think we also have to keep into account the length of the term... The good news is that we also have a lot of space to explain things properly in the description. Let's see what other people say about it.