Bottom-up and top-down attention are independent

Visual Attention: Bottom-Up Versus Top-Down

Visual attention is attracted by salient stimuli that 'pop out' from their surroundings. Attention can also be voluntarily directed to objects of current importance to the observer. What happens in the brain when these two processes interact?

Bottom-up, top-down

Relative Influence of Bottom-Up and Top-Down Attention

Attention and memory are very closely related and their aim is to simplify the acquired data into an intelligent structured data set. Two main points are discussed in this paper. The first one is the presentation of a novel visual attention model for still images which includes both a bottom-up and a top-down approach. The bottom-up model is based on structures rarity within the image during th...

Dense crowd analysis through bottom-up and top-down attention

Video analysis of difficult scenarios like dense crowds can highly benefit from the use of algorithms which model part of human attention. Interesting motion which is new or surprising can be computed on large groups of people based on a two step approach. A bottom-up attention model built upon motion rarity compared to the rest of the motion in the same frame and a top-down approach which inhi...

Relative Influence of Bottom-up & Top-down Attention

Attention and memory are very closely related and their aim is to simplify the acquired data into an intelligent structured data set. Two main points are discussed in this paper. The first one is the presentation of a novel visual attention model for still images which includes both a bottom-up and a top-down approach. The bottom-up model is based on structures rarity within the image during th...