The picture shows an artist version of a head up display. It contains of:
- camera picture of a kitchen
- text box with inner voice
- bounding boxes
- labels for the bounding boxes
Surprisingly, the information in the picture can solve the symbol grounding problem because the head up display connects visual perception with textual information. The text from the inner voice like "I need to find 200g of flour" can be converted into meaning with the help of the bounding boxes. There is a box available with such an ingredient. The task for the robot is not to plan actions but the main problem is to connect language from the inner voice with detected objects in the camera.
Such a link of visual objects with textual labels is the core element in grounded language. If the robot is able to identify objects from the text box, its possible to generate all sort of inner voice. For example, the robot can say that he needs to peel the banana or "open the oven". All these nouns and verbs are translated into position of the bounding box on the screen which allows to execute the action physically.
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