features generated by albef_feature_extraction are low-quality.

[panmianzhi]

I follow the demo and use the features generated by albef_feature_extraction to perform zero-shot cross-modal retrieval on MSCOCO. The t2i recall scores are extremely low while that of i2t score looks normal, and I don't know the answer. What's more, I found the cosine similarity even between the paired image and text is low (about 0.09).