GYRO Benefits and Drawbacks

[ER]

Hello all,

If any of you have a couple of minutes, I'd appreciate some answers to the following questions:
1. What are the benefits you see from using a GYRO markup (or some other system of different colors to mark clear vs. unclear points)?
2. What are some reasons that some examiners don't use it (and just use one color for all points)?

Thanks a lot!

[josher89]

I testified at an evidentiary hearing and I used GRYO to mark up my chart. It was easily explainable (I didn't have any reds), and my yellows were demonstrable to the known as being justifiable.

I didn't see a reason to not use it. It's not as detailed as PiAnOS (or however it's capitalized) but sufficient to show my thought process.

[Shane Turnidge]

I love GYRO. I accept that it simplifies things a little and does not address L3D but until someone builds a better system...

I love that GYRO addresses the variability in L1D and L2D. It easily answers the question of why friction ridge identification does not require a set number of points in a friction ridge impression or image.
I also love that it helps mentors understand what their proteges are actually seeing, which really helps in training.

Shane Turnidge

[Boyd Baumgartner]

I love GYRO. I accept that it simplifies things a little and does not address L3D but until someone builds a better system...

Pores....? Edges...?

New from Baumco.... GYROpe™ : The latent markup that won't kill you and force you to make an error.

[Dr. Borracho]

New from Baumco.... GYROpe™ : The latent markup that won't kill you and force you to make an error.

Can I get that in a toaster?

[Boyd Baumgartner]

Silly Doctor.....in today's age of hipster luxuries, that meme has been updated to reflect the times.

Toast.jpg

[Shane Turnidge]

Hence why I love GYRO... Yum!

As I said, the only appreciable shortfall is L3D.

Shane Turnidge

[Dr. Borracho]

If stray pepper on the plate isn't Level 3, I don't know what is!

[NRivera]

That is missing some bacon. Just sayin'!

[g.]

As I said, the only appreciable shortfall is L3D.

Shane Turnidge

Hi Shane! As the progenitor, I have a couple of comments:

1) GYRO was created to document any kind of detail. In practice, it predominantly is used (even by me) to mark minutiae, but even in my classes/workshops, I teach in at least one exercise to mark/trace ridges using GYRO. It can be used to mark L3D, and when I do, I tend to use red or yellow (at best), because of the low reproducibility of L3D. Since GYRO reflects our expectation to observe it/certainty of its existence, I rarely use it for edge shapes and occasionally use for pores (since they are more robust to distortion such as pressure, but edge shapes are not).

2) GYRO has two big deficiencies in my book:
a) When you know there is a feature in an area, but uncertain of the exact position... in these circumstances, I tend to just increase my GYRO mark radius. In this respect, PiAnoS is superior since it has a "positional uncertainty" annotation.
b) Neither GYRO, nor PiAnoS annotates specificity of the feature in any way. This I tend to address in my notes narrative. I have heard about a handful of analysts playing around with adding something to the GYRO dot like a "+" for high specificity, nothing for "moderate, garden variety specificity", and a "-" for low specificity.

I like that, but again it takes more time. For a complex case that extra information could be nice to add.

Hope that helps! Best to you sir,

g.

[ER]

Thanks for all the replies to the initial question (here and offline). Also, fingerprint gyro?

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