Salient Imagenet

Class: 881 (Upright Piano), Feature: 427

This feature is core for class Upright Piano. It is the fourth most important feature for class Upright Piano.

Below, we display the five Upright Piano images that most highly activate the feature, along with the Neural Activation Map (heatmap) and Feature Attack for each image. These are the same as the images shown to crowdworkers to annotate this class-feature pair.

We additionally provide the full responses of the five crowdworkers that annotated this pair, as well as links to other related pairs (i.e. same class or same feature).

MTurk Worker Annotations

core

spurious

core

spurious

Main Focus	Confidence	Explanation
Main Object	5	Focus is on some part of upright piano.
Main Object	4	Focus is on the vertical sounding board of the upright piano.
Main Object	5	All the images are mainly focused on main object's body parts.
Main Object	5	Focus is on keys which is a part of upright piano
Main Object	5	Focus is on the black keys of the upright piano.

core

Related Class-Feature Pairs

Important Features for Upright Piano

There are 5 features annotated as core and 0 features annotated as spurious for Upright Piano. Core features include 427, 760, 1081, 1466, 1838.

Classes where Feature 427 is among Most Important (i.e. top-5)

Feature 427 is core for the following classes: Dowitcher, Brass Memorial Plaque, Grand Piano, Upright Piano.