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Learnable Descriptors for Visual Search
DOI:10.1109/TIP.2020.3031216.png)
Abstract
En 中文
This work proposes LDVS, a learnable binary local descriptor devised for matching natural images within the MPEG CDVS framework. LDVS descriptors are learned so that they can be sign-quantized and compared using the Hamming distance. The underlying convolutional architecture enjoys a moderate parameters count for operations on mobile devices. Our experiments show that LDVS descriptors perform favorably over comparable learned binary descriptors at patch matching on two different datasets. A complete pair-wise image matching pipeline is then designed around LDVS descriptors, integrating them in the reference CDVS evaluation framework. Experiments show that LDVS descriptors outperform the compressed CDVS SIFT-like descriptors at pair-wise image matching over the challenging CDVS image dataset.
Keywords:
Image coding
Standards
Transform coding
Image matching
Pipelines
Bit rate
Pair-wise image matching
patch matching
binary descriptors
convolutional neural networks
fully convolutional neural networks
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