47 research outputs found
Supplementary document for Design method of imaging optical systems using confocal flat phase elements - 6158248.pdf
Detailed discussions of Eqs. (7) and (8) in the paper are demonstrate
Flowchart of our multiple feature sparse coding method.
<p>Flowchart of our multiple feature sparse coding method.</p
Impact on retrieval accuracy with different combining parameters for SURF and color features.
<p>Impact on retrieval accuracy with different combining parameters for SURF and color features.</p
Retrieval results with multiple features on UKB dataset.
<p>Retrieval results with multiple features on UKB dataset.</p
Retrieval results with multiple features on Holidays dataset.
<p>Retrieval results with multiple features on Holidays dataset.</p
Histogram of sum pooling results.
<p>(a) Visual codes C3, C4 generated by distinctive patches on the background. (b) Visual codes C4 generated by frequent patches on the background.</p
Distance between similar and dissimilar images on UKB dataset.
<p>(a) The probability density of <i>L</i><sub>1</sub> norm distance with sum pooling. (b) The probability density of <i>L</i><sub>1</sub> norm distance with max pooling.</p
Impact on sparsity coefficient with different pooling schemes.
<p>(a) Sum pooling; (b) Max pooling; <b>(c)</b> Modified pooling.</p
Retrieval results with multiple features on Zurich dataset.
<p>Retrieval results with multiple features on Zurich dataset.</p
Frequent patches and distinctive patches.
<p>(a) Example images which include frequent patches on the background. (b) Example images which include distinctive patches on the background.</p