416 research outputs found
Single Stage Virtual Try-on via Deformable Attention Flows
Virtual try-on aims to generate a photo-realistic fitting result given an
in-shop garment and a reference person image. Existing methods usually build up
multi-stage frameworks to deal with clothes warping and body blending
respectively, or rely heavily on intermediate parser-based labels which may be
noisy or even inaccurate. To solve the above challenges, we propose a
single-stage try-on framework by developing a novel Deformable Attention Flow
(DAFlow), which applies the deformable attention scheme to multi-flow
estimation. With pose keypoints as the guidance only, the self- and
cross-deformable attention flows are estimated for the reference person and the
garment images, respectively. By sampling multiple flow fields, the
feature-level and pixel-level information from different semantic areas are
simultaneously extracted and merged through the attention mechanism. It enables
clothes warping and body synthesizing at the same time which leads to
photo-realistic results in an end-to-end manner. Extensive experiments on two
try-on datasets demonstrate that our proposed method achieves state-of-the-art
performance both qualitatively and quantitatively. Furthermore, additional
experiments on the other two image editing tasks illustrate the versatility of
our method for multi-view synthesis and image animation.Comment: ECCV 202
Percutaneous Nephrolithotomy under Local Infiltration Anesthesia in Kneeling Prone Position for a Patient with Spinal Deformity
Urolithiasis, a common condition in patients with spinal deformity, poses a challenge to surgical procedures and anesthetic management. A 51-year-old Chinese male presented with bilateral complex renal calculi. He was also affected by severe kyphosis deformity and spinal stiffness due to ankylosing spondylitis. Dr. Li performed the percutaneous nephrolithotomy under local infiltration anesthesia with the patient in a kneeling prone position, achieving satisfactory stone clearance with no severe complications. We found this protocol safe and effective to manage kidney stones in patients with spinal deformity. Local infiltration anesthesia may benefit patients for whom epidural anesthesia and intubation anesthesia are difficult
SOOD: Towards Semi-Supervised Oriented Object Detection
Semi-Supervised Object Detection (SSOD), aiming to explore unlabeled data for
boosting object detectors, has become an active task in recent years. However,
existing SSOD approaches mainly focus on horizontal objects, leaving
multi-oriented objects that are common in aerial images unexplored. This paper
proposes a novel Semi-supervised Oriented Object Detection model, termed SOOD,
built upon the mainstream pseudo-labeling framework. Towards oriented objects
in aerial scenes, we design two loss functions to provide better supervision.
Focusing on the orientations of objects, the first loss regularizes the
consistency between each pseudo-label-prediction pair (includes a prediction
and its corresponding pseudo label) with adaptive weights based on their
orientation gap. Focusing on the layout of an image, the second loss
regularizes the similarity and explicitly builds the many-to-many relation
between the sets of pseudo-labels and predictions. Such a global consistency
constraint can further boost semi-supervised learning. Our experiments show
that when trained with the two proposed losses, SOOD surpasses the
state-of-the-art SSOD methods under various settings on the DOTA-v1.5
benchmark. The code will be available at https://github.com/HamPerdredes/SOOD.Comment: Accepted to CVPR 2023. Code will be available at
https://github.com/HamPerdredes/SOO
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