172 research outputs found
MC-MLP:Multiple Coordinate Frames in all-MLP Architecture for Vision
In deep learning, Multi-Layer Perceptrons (MLPs) have once again garnered
attention from researchers. This paper introduces MC-MLP, a general MLP-like
backbone for computer vision that is composed of a series of fully-connected
(FC) layers. In MC-MLP, we propose that the same semantic information has
varying levels of difficulty in learning, depending on the coordinate frame of
features. To address this, we perform an orthogonal transform on the feature
information, equivalent to changing the coordinate frame of features. Through
this design, MC-MLP is equipped with multi-coordinate frame receptive fields
and the ability to learn information across different coordinate frames.
Experiments demonstrate that MC-MLP outperforms most MLPs in image
classification tasks, achieving better performance at the same parameter level.
The code will be available at: https://github.com/ZZM11/MC-MLP
AGG-Net: Attention Guided Gated-convolutional Network for Depth Image Completion
Recently, stereo vision based on lightweight RGBD cameras has been widely
used in various fields. However, limited by the imaging principles, the
commonly used RGB-D cameras based on TOF, structured light, or binocular vision
acquire some invalid data inevitably, such as weak reflection, boundary
shadows, and artifacts, which may bring adverse impacts to the follow-up work.
In this paper, we propose a new model for depth image completion based on the
Attention Guided Gated-convolutional Network (AGG-Net), through which more
accurate and reliable depth images can be obtained from the raw depth maps and
the corresponding RGB images. Our model employs a UNet-like architecture which
consists of two parallel branches of depth and color features. In the encoding
stage, an Attention Guided Gated-Convolution (AG-GConv) module is proposed to
realize the fusion of depth and color features at different scales, which can
effectively reduce the negative impacts of invalid depth data on the
reconstruction. In the decoding stage, an Attention Guided Skip Connection
(AG-SC) module is presented to avoid introducing too many depth-irrelevant
features to the reconstruction. The experimental results demonstrate that our
method outperforms the state-of-the-art methods on the popular benchmarks
NYU-Depth V2, DIML, and SUN RGB-D.Comment: 9 pages, 7 figures, ICCV202
Neutrophil Gelatinase Associated Lipocalin: Structure, Function and Role in Human Pathogenesis
Prognostic value of routine laboratory variables in prediction of breast cancer recurrence.
The prognostic value of routine laboratory variables in breast cancer has been largely overlooked. Based on laboratory tests commonly performed in clinical practice, we aimed to develop a new model to predict disease free survival (DFS) after surgical removal of primary breast cancer. In a cohort of 1,596 breast cancer patients, we analyzed the associations of 33 laboratory variables with patient DFS. Based on 3 significant laboratory variables (hemoglobin, alkaline phosphatase, and international normalized ratio), together with important demographic and clinical variables, we developed a prognostic model, achieving the area under the curve of 0.79. We categorized patients into 3 risk groups according to the prognostic index developed from the final model. Compared with the patients in the low-risk group, those in the medium- and high-risk group had a significantly increased risk of recurrence with a hazard ratio (HR) of 1.75 (95% confidence interval [CI] 1.30-2.38) and 4.66 (95% CI 3.54-6.14), respectively. The results from the training set were validated in the testing set. Overall, our prognostic model incorporating readily available routine laboratory tests is powerful in identifying breast cancer patients who are at high risk of recurrence. Further study is warranted to validate its clinical application
Involvement of HAND1 and CBS in maintenance of cardiac micro-architecture following obesity-induced heart failure
Purpose: To study the role of heart and neural crest derivatives expressed 1 (HAND1) and cystathionine-beta-synthase (CBS) in the maintenance of cardiac architecture following high fat dietinduced obesity.
Methods: Mouse models of initial and critical heart disease were established by continuous feeding of high fat diet for 7 and 12 months, respectively. The expression of HAND1 and CBS were assayed using immunohistochemistry and Western blotting.
Results: Obesity led to mild and severe forms of heart disease which were confirmed through histological imaging. Initial obesity resulted in cardiac tissue remodeling along with initial degeneration, while critical obesity resulted in tissue hardening. The expression of HAND1 was upregulated 4.3 folds in the mild form of cardiac failure, relative to marginal expression pattern of HAND1 in control tissue. However, as the disease progressed, the expression of HAND1 was limited in serve form of cardiac failure. Moreover, the expression of cystathionine beta-synthase (CBS) was upregulated 3.7-fold in the initial form of heart failure, but was subsequently reduced in serve form of heart disease.
Conclusion: These results reveal that in high fat diet-induced cardiac stress, the over-expressions of HAND1 and CBS at the initial stages induce extensive alterations in cardiac architecture
Atomic-number dependence of the magnetic-sublevel population in the autoionization state formed in dielectronic recombination
The magnetic-sublevel population of the autoionization state formed in dielectronic recombination (DR) of highly charged heavy ions has been experimentally investigated by combining two types of measurements with an electron beam ion trap. The two different measurements are the differential x-ray measurement at 90∘ with respect to the electron beam and the integral resonance-strength measurement. The alignment parameter, which denotes the magnetic-sublevel population distribution, has been obtained for the autoionization states [1s2s22p1/2]1 formed in DR of Li-like Pr (atomic number Z=59) and Ho (Z=67). This work is a complement to our previous work [Phys. Rev. Lett. 108, 073002 (2012)] on Li-like Au (Z=79). The experimental results are in reasonable agreement with theoretical predictions, and a strong Z-dependent tendency due to the Breit interaction has been confirmed
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