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Logo Annotation Guidelines: Difference between revisions
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{{otherlang | |||
| fr=FR:Guide d'annotation de logos | |||
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[[Category:Artificial Intelligence]] | [[Category:Artificial Intelligence]] | ||
[[Category:Hunger Games]] | [[Category:Hunger Games]] | ||
[[File:Logo game.png|thumb]] | [[File:Logo annotation game.png|alt=|thumb]] | ||
The annotation Web interface is available at: https://hunger.openfoodfacts.org/logos. | The annotation Web interface is available at: https://hunger.openfoodfacts.org/logos. | ||
The goal of the annotation is to provide ground-truth labels that will be used to predict the label of unseen logos. | The goal of the annotation is to provide ground-truth labels that will be used to predict the label of unseen logos. | ||
'''It is extremely important to provide quality annotations, otherwise the predictions won't be qualitative'''. | '''It is extremely important to provide quality annotations, otherwise, the predictions won't be qualitative'''. | ||
If you're not sure of how you should annotate a logo, ask on | If you're not sure of how you should annotate a logo, ask on Slack, in the #ai-logo-detection channel. | ||
== How to? == | == How to? == | ||
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3. Fill ''value'' and ''type'' corresponding to the selected logos. Be sure to '''check that the ''value'' and ''type'' are correct before submitting the annotation''' : | 3. Fill ''value'' and ''type'' corresponding to the selected logos. Be sure to '''check that the ''value'' and ''type'' are correct before submitting the annotation''' : | ||
* The ''value'' field should only be completed for "brand" and "label" types. | * The ''value'' field should only be completed for "brand" and "label" types. | ||
* The value should match one item in the associated taxonomy, otherwise it won't be used for prediction. The field value is | * The value should match one item in the associated taxonomy, otherwise it won't be used for prediction. The field value is lowercase before saving the annotation. | ||
* Use ''QR code'' type for QR codes, ''Packager code'' for packager codes (code surrounded by a circle), ''Brand'' for brand logos and ''Label'' for label logos | * Use ''QR code'' type for QR codes, ''Packager code'' for packager codes (code surrounded by a circle), ''Brand'' for brand logos, and ''Label'' for label logos. | ||
For labels and brands, logo annotations will update the product by adding the annotated label or brand. Please note that there is a 5 minutes delay between the annotation and the database update. | |||
Example | Example (label): https://hunger.openfoodfacts.org/logos?logo_id=161643, here, we should add "Label Rouge" as value and "label" as type. | ||
Example | Example (brand): https://hunger.openfoodfacts.org/logos?logo_id=444915, here we should add "Rachel's" as value and "brand" as type. Please note there is not yet auto-completion for brand. Server-side, the value is transformed into a tag ("rachel-s") and matched against existing brands in the database. The brand logo annotation is used only if we find a match. | ||
'''If more than one logo is visible on the crop, do not annotate it'''. A flag system should be available in the future to report them. | '''If more than one logo is visible on the crop, do not annotate it'''. A flag system should be available in the future to report them. | ||
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If the logo is truncated, annotate it anyway if it can still be recognized. | If the logo is truncated, annotate it anyway if it can still be recognized. | ||
You can click on the blue link | You can click on the blue link in the top-right corner of each logo card. It will open a new tab with this specific logo as a reference. It's really useful to find similar logos to annotate. | ||
Query parameters: | Query parameters: | ||
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For instance, to display 50 results, use: https://hunger.openfoodfacts.org/logos?count=50 | For instance, to display 50 results, use: https://hunger.openfoodfacts.org/logos?count=50 | ||
== | == Infinite mode == | ||
Once you're confident with the standard logo annotation interface, you can try the more powerful Infinite mode available at: https://hunger.openfoodfacts.org/logos/deep-search | |||
The mechanism of Infinite mode annotation is the following: | |||
* fetch all logos annotated with a type and value | |||
* for each fetched logo, get the most similar logos without annotations | |||
* display all these unannotated logos | |||
This is a very effective mode to annotate logos that already have a few annotations. | |||
== Product mode == | |||
If you want to annotate logos of a specific brand or label but infinite mode does not yield any result (because there is no annotated logos yet), you can try bootstrapping logo annotations with product mode: https://hunger.openfoodfacts.org/logos/product-search | |||
Start selecting a type (label or brand) and a value. All logos of all images of all products that have this brand/label will be displayed. You just need to select relevant logos and annotate them. | |||