Discriminative Learning of Local Image Descriptors
Discriminative Learning of Local Image Descriptors
Discriminative Learning of Local Image Descriptors
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G-block T-block<br />
S-block/<br />
E-block<br />
N-block<br />
T1: Angle-quantized gradients. Magnitude is linearly assigned to two<br />
adjacent elements <strong>of</strong> orientation.<br />
T1a: 4 quantized directions; T1b: 8 quantized directions<br />
T2: Rectified gradients. Positive and negative separated gradient vector.<br />
T2a: { x x; x x; y y; y y}<br />
T2b: { x x; x x; y y; y y; x x; x x; y y; y y}