Abstract: Embodiments in the disclosure provide a method, apparatus, device, storage medium, and program product for feature determination. The method includes: determining, using a visual encoder, a visual feature representation of an image, the visual feature representation having a first dimension; dividing the visual feature representation into a plurality of sub-feature representations by dimension; for each of the plurality of sub-feature representations, determining, from a codebook of a plurality of codebooks that corresponds to the sub-feature representation, a quantized feature representation that matches the sub-feature representation, each codebook including a plurality of quantized feature representations; and determining a quantized visual feature representation of the image by concatenating a plurality of quantized feature representations respectively corresponding to the plurality of sub-feature representations, the quantized visual feature representation having the first dimension.