About different size feature (extract_features) with ["all"]

[HymEric]

In config file, I want to use all features as the image descriptors:

extractor:
    name: "MoCoResSeries"  # name of the extractor.
    MoCoResSeries:
      extract_features: ["all"]  # name of the output feature map. If it is ["all"], then all available features will be output.

But if the middle feature is [N1,C1,H1,W1], [N2,C2,H2,W2] and the last feature is [N, L]. How to deal with this problem? And in the indexing phase, what about feature_names? is ["all_GEM"] if aggregators=GeM

[hby96]

1. "all" is used to control the output features in extracting, so feature dimension is not in this situation;
2. In indexing phase, you should assign the specific feature names, e.g., ["pool4_GeM", "pool5_GeM"], instead of ["all_GEM"].