To improve the accuracy of feature extraction and description various scales in traditional Oriented FAST Rotated BRIEF (ORB) matching algorithm, this paper proposes an ORB algorithm based on multi-scale fusion point mapping error correction. Firstly, when establishing scale pyramid, method using same patch-size for each layer is adopted instead different patch-sizes a unified original which en...

a-10-year-old girl was referred to our department for multiple hyperpigmented plaques. one  week  previously,  she  had  been  given  one  suppository  of  acetylsalicylic acid  – phenobarbital for fever. twelve hours after the drug intake the child developed pruritic red plaques on the left thigh. six weeks after resolution of the acute reaction, patch tests were performed separately, with phe...

Many sites are contaminated with petroleum hydrocarbons (PHCs). In some cases, these PHCs may be biorecalcitrant and therefore the soils contaminated with these PHCs are not amenable to remediation by biological treatment methods. Examples of sites containing biorecalcitrant PHCs are old flare pit sites. Flare pits are earthen pits that were once used for the storage and disposal of natural gas...

Obtaining a robust feature representation of visual speech is of crucial importance in the design of audio-visual automatic speech recognition systems. In the literature, when visual appearance based features are employed for this purpose, they are typically extracted using a “holistic” approach. Namely, a transformation of the pixel values of the entire region-of-interest (ROI) is obtained, wi...

Robert Mandelbaum Max Mintz General Robotics and Active Sensory Perception (GRASP) Laboratory Department of Computer and Information Science University of Pennsylvania Philadelphia, PA 19104 Abstract We describe a novel approach to the extraction of geometric features from sonic data. As is well known, a single sonar measurement using a standard PolaroidTM sensor, though yielding relatively acc...

OBJECTIVE Early-stage oral or oropharyngeal carcinomas are often treated with surgical resection. Resulting wounds that are too large for primary closure can be covered with skin grafts or patches made from various biomaterials. Recently, polyglycolic acid sheets have been used for this purpose. METHODS We treated six patients with large wounds resulting from the resection of oral or orophary...

With the advancement of deep learning, single-image super-resolution (SISR) has made significant strides. However, most current SISR methods are challenging to employ in real-world applications because they doubtlessly employed by substantial computational and memory costs caused complex operations. Furthermore, an efficient dataset is a key factor for bettering model training. The hybrid model...

We investigate the segmentation of high resolution polarimetric Synthetic Aperture Radar (PolSAR) images of urban areas. The segmentation strategy in [1] is applied in this paper. Spectral graph segmentation has the advantage of capturing non-local property. The probabilistic boundaries and patch features are integrated for spectral graph segmentation. Accurate boundaries extraction and efficie...

This paper focuses on the problem of feature extraction and the classification of microvascular morphological types to aid esophageal cancer detection. We present a patch-based system with a hybrid SVM model with data augmentation for intraepithelial papillary capillary loop recognition. A greedy patch-generating algorithm and a specialized CNN named NBI-Net are designed to extract hierarchical...