Solar Image Recognition WorkshopSummary & Conclusions

Bob Bentley

UCL

Several spatial and temporal regimes• Small scale phenomena

– Small scale, restricted FOV, short lifetimes• Bright points, transient brightenings, granules…

– Generally, analysis restricted to limited time intervals– Concern over coverage, etc. – hard to construct catalogs

• “Global” Phenomena– Medium/large scale, whole/extended sun, longer lifetimes – Typically described features

• Spots, filaments, CH, AR… – slow evolution• CMEs, filament eruptions… – rapid evolution

– Scope for coordinated effort to develop tools and catalogs

• Outriders– Poorly described, few observations… – Trans equatorial loops, sigmoids?, active regions?, others??

To coordinate things we need to:• Adopt understood/common way of preparing, correcting and enhancing

the data prior to recognition• Examine carefully whether techniques giving the same results

– Consider how to “normalize” results– Use different wavelengths to confirm/provide information

• Think about more formal definitions of features• Consider if we should create new indices

– Related in some way to existing indices

• Agree on ways of describing features in catalogs– Describe how data treated, etc…– Issues related to coordinates, etc. (helio, pixel…)– Must be able to handle annotation

• Magnetic field strength of spots; classification of spots and Ars• Barbs on filaments• Structure of CMEs and velocity• AR structure, etc… – ARM????

– EGSO discussion document on this and related issues out shortly

Other things…• Use of information

– Many techniques designed to recognize and classify features

– Some designed to detect change

– Both could be used for Space Weather if appropriate information is available

– Need to decide what we need

– Need discussion to ensure what is being derived is of use

• Folding things like ARM into the VO effort – QLK/Web service interface– Metadata, registry?? (JTM?)

Also…• Sharing Software

– Special branch for feature recognition in SSW• Related mainly to medium/ large scale features?

• What about software for very small scale features??

– Submission procedure – issues related to quality

• Next Solar Image Recognition Workshop??

Missing presentations

• Nicolas Fuller

• Benkhali, Ali

• Antoine, Jean-Pierre

• Laurent Jacques

• Portier-Fozzani, Fabrice

• Dudok de Wit