Compact (and accurate) early vision processing in the harmonic space

Compact (and accurate) early vision processing in the harmonic space
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谐波空间中紧凑(且准确)的早期视觉处理

DOI:
10.5220/0002050502130220
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发表时间:
2007
期刊:
2019 IEEE 19th International Conference on Communication Technology (ICCT)
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通讯作者:
N. Krüger
N. Krüger
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--
文献类型:
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作者:
S. Sabatini;Giulia Gastaldi;F. Solari;Karl Pauwels;M. V. Hulle;Javier Díaz;E. Ros;N. Pugeault;N. Krüger

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各向异性与各向同性过滤的功效分析相对于一般的基于相位的早期视觉属性的度量。我们验证了通过定向频率通道收集的光谱信息内容的特点是高度的紧凑性和灵活性,因为出现了广泛的视觉属性从不同层次的组合相同的通道。我们观察到,最好是构建一个多通道,多方向的表示,而不是使用一个更紧凑的表示的基础上各向同性的概括的分析信号。完整的谐波内容,然后结合在phaseorientation空间在最后阶段,只有拿出最终的感性决定,从而避免了“早期冷凝”的基本功能。由此产生的算法解决方案在现实世界的情况下,以负担得起的计算成本达到高性能。
The efficacy of anisotropic versus isotropic filtering is anayzed with respect to general phase-based metrics for early vision attributes. We verified that the spectral information content gathered through oriented frequency channels is characterized by high compactness and flexibility, since a wide range of visual attributes emerge from different hierarchical combinations of the same channels. We observed that it is preferable to construct a multichannel, multiorientation representation, rather than using a more compact representation based on an isotropic generalization of the analytic signal. The complete harmonic content is then combined in the phaseorientation space at the final stage, only, to come up with the ultimate perceptual decisions, thus avoiding an “early condensation” of basic features. The resulting algorithmic solutions reach high performance in real-world situations at an affordable computational cost.
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