用高维几何平滑提升图像分割边界精度和一致性
GeloVec: Higher Dimensional Geometric Smoothing for Coherent Visual Feature Extraction in Image Segmentation
- 通过高维几何距离与多空间变换融合,稳定特征提取
- 在三个数据集上实现2.1%~2.7%的mIoU提升
- 适合追求边缘精度与计算效率平衡的视觉分割研究者
本文提出GeloVec,一种基于CNN的注意力平滑框架,用于语义分割。传统方法在特征映射中常出现边界不稳与上下文断裂问题。GeloVec采用高维几何平滑方法,在n维特征空间中建立视觉连贯区域间的鲁棒流形关系。通过改进的切比雪夫距离度量与多空间变换矩阵,结合张量投影与正交基向量,实现更判别性的特征表示且保持高效。其自适应采样权重系统在特征空间中计算几何距离,显著提升边缘保持能力并维持类内同质性。在Caltech Birds-200、LSDSC和FSSD数据集上的实验显示,相比现有最优方法,mIoU分别提升2.1%、2.7%和2.4%。该框架基于黎曼几何,提供分割稳定性理论保证,通过测地线变换的并行化实现高效计算,并具备跨领域强泛化能力。
原文摘要 · Abstract (English)
This paper introduces GeloVec, a new CNN-based attention smoothing framework for semantic segmentation that addresses critical limitations in conventional approaches. While existing attention-backed segmentation methods suffer from boundary instability and contextual discontinuities during feature mapping, our framework implements a higher-dimensional geometric smoothing method to establish a robust manifold relationships between visually coherent regions. GeloVec combines modified Chebyshev distance metrics with multispatial transformations to enhance segmentation accuracy through stabilized feature extraction. The core innovation lies in the adaptive sampling weights system that calculates geometric distances in n-dimensional feature space, achieving superior edge preservation while maintaining intra-class homogeneity. The multispatial transformation matrix incorporates tensorial projections with orthogonal basis vectors, creating more discriminative feature representations without sacrificing computational efficiency. Experimental validation across multiple benchmark datasets demonstrates significant improvements in segmentation performance, with mean Intersection over Union (mIoU) gains of 2.1%, 2.7%, and 2.4% on Caltech Birds-200, LSDSC, and FSSD datasets respectively compared to state-of-the-art methods. GeloVec's mathematical foundation in Riemannian geometry provides theoretical guarantees on segmentation stability. Importantly, our framework maintains computational efficiency through parallelized implementation of geodesic transformations and exhibits strong generalization capabilities across disciplines due to the absence of information loss during transformations.
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