EFFICIENT COMPACT DESCRIPTORS IN VISUAL SEARCH SYSTEMS

摘要

Disclosed embodiments are directed to methods, systems, and circuits of generating compact descriptors for transmission over a communications network. A method according to one embodiment includes receiving an uncompressed descriptor, performing zero-thresholding on the uncompressed descriptor to generate a zero-threshold-delimited descriptor, quantizing the zero-threshold-delimited descriptor to generate a quantized descriptor, and coding the quantized descriptor to generate a compact descriptor for transmission over a communications network. The uncompressed and compact descriptors may be 3D descriptors, such as where the uncompressed descriptor is a SHOT descriptor. The operation of coding can be ZeroFlag coding, ExpGolomb coding, or Arithmetic coding, for example.

主权项

1. A method of generating compact descriptors for transmission over a communications network, the method comprising:
receiving an uncompressed descriptor; performing zero-thresholding on the uncompressed descriptor to generate a zero-threshold-delimited descriptor; quantizing the zero-threshold-delimited descriptor to generate a quantized descriptor; and coding the quantized descriptor to generate a compact descriptor for transmission over a communications network.