Based on the multi-orientation EPIs, a specific EPI in which the point is not occluded is found and used to calculate robust depth estimation.
CW-SSIM [22] simultaneously insensitive to luminance and contrast changes and small geometric distortions of image is based on multi-orientation steerable pyramid decomposition using multi-scale bandpass-oriented filters.
The multi-orientation EPIs and optimal orientation selection are proved to be effective in detecting and excluding occlusions.
This paper presents a panorama of the aforementioned literature on decompositions in multiscale, multi-orientation bases or dictionaries.
It's worth pointing out that it is computationally expensive to convolve facial images with a set of Gabor filters to extract multi-scale and multi-orientation coefficients.
The proposed method is evaluated on ICDAR 2013 Robust Reading Competition benchmark database and the practical challenging multi-orientation scene text database (USTB) with standard rules.
An innovative Hardware Orientation Detecting System (HODS) is proposed for detecting the orientation between two docking ports, which can be applied to all multi-orientation docking systems.
Gabor wavelets [35] have been extensively used in face feature extraction for many years, and it can extract the multi-scale and multi-orientation information from a face image.
First, they extract the multi-scale and multi-orientation Gabor representations of the face image, and then they use covariance descriptors to compute the symmetry between two regions in terms of Gabor representations under the same scale and orientation.
The G3PD model is included in the DG3PD model by choosing L=2 and replacing the directional G-norm in the DG3PD model by the ℓ 1-norm of curvelet coefficients (multi-scale and multi-orientation decomposition) to capture texture.
Wu et al. [44] propose Feature Fusion Net (FFN) to describe human appearance for human re-id, where the FFN combines convolutional neural network (CNN) deep feature with handcrafted features, including color histogram computed in five different color spaces, i.e., RGB, HSV, YCbCr, Lab and YIQ, and Gabor texture descriptors with multi-scale and multi-orientation.
