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48 results for Medical image synthesis

Generative model generates synthetic medical images for data augmentation and anonymization.

problem Imbalanced medical imaging data sets, especially for rare pathologies.
method Generative adversarial network (GAN) trained on two public brain MRI datasets.
result Synthetic images improve tumor segmentation performance and serve as an anonymization tool.

MI-GAN generates synthetic medical images for supervised analysis.

problem Lack of large datasets and overfitting in medical image analysis.
method Generative Adversarial Network (GAN) for generating synthetic medical images and masks.
result MI-GAN achieves state-of-the-art performance with dice coefficient of 0.837 on STARE and 0.832 on DRIVE datasets.

Bayesian variational inference improves medical image segmentation confidence.

problem Improving interpretability and confidence in deep learning models for medical image segmentation.
method Encoder-decoder architecture based on variational inference for segmenting brain tumor images.
result The model segments brain tumors with both aleatoric and epistemic uncertainty.

DDPMs can reproduce medical image context, showing interpolation between samples.

problem Understanding DDPMs' ability to learn spatial context in medical imaging.
method Used stochastic context models (SCMs) to produce training data and assess DDPMs' performance.
result DDPMs can generate contextually correct images, interpolating between samples.

Deep learning model improves medical diagnosis and reduces patient time.

problem Ineffective and slow methods for synthesizing multimodal medical data.
method Cross-modal deep learning architecture with co-attention mechanism.
result Model outperforms previous methods by 2.35% and is 53% more efficient.

Framework synthesizes geological images minimizing patch distribution discrepancy.

problem Synthesizing realistic geological images from a single exemplar.
method Uses kernel discrepancies and generative neural networks for efficient synthesis.
result Synthesized images match visual patterns and spatial statistics of the exemplar.

New method evaluates text-to-image synthesis for realism, variety, and semantic accuracy.

problem Lack of metrics revealing semantic accuracy in text-to-image synthesis.
method Uses Inception network representations and t-SNE visualization for semantic evaluation.
result Classification accuracy of generated images to real images' visual concepts correlates with semantic accuracy.

Study finds little progress in medical machine learning benchmarks over 3 years.

problem Lack of meaningful progress in medical machine learning benchmarks for structured healthcare data.
method Comprehensive review and meta-analysis of benchmarks in medical machine learning for structured data.
result Deep recurrent models perform only better than logistic regression on certain clinical prediction tasks.

Method treats pseudo healthy synthesis as a factor decomposition problem.

problem Creating a healthy-looking image from a pathological one.
method Adversarial training with paired or unpaired settings, combining two factors (healthy and disease) to reconstruct the input.
result Method outperforms conditional GAN and CycleGAN in generating pseudo healthy images.

Deep learning methods quantify uncertainty in neuroimage enhancement.

problem Uncertainty in deep learning models for medical image enhancement.
method Heteroscedastic noise model and approximate Bayesian inference for uncertainty quantification.
result Uncertainty quantification improves predictive performance and risk assessment.

Generative adversarial networks (GANs) are a recent approach to train generative models of data, which have been shown to work particularly well on image data. In the current paper we introduce a new model for texture synthesis based on GAN learning. By extending the input noise distribution space from a single vector …

2016-11-24abs ↗pdf ↗

IAGAN method improves medical image reconstruction by incorporating adaptive GAN priors.

problem Reconstructing high-fidelity medical images from incomplete data.
method Image-adaptive GAN-based reconstruction method (IAGAN).
result IAGAN can recover fine structures relevant for medical diagnosis.

Synthesizing high resolution photorealistic images has been a long-standing challenge in machine learning. In this paper we introduce new methods for the improved training of generative adversarial networks (GANs) for image synthesis. We construct a variant of GANs employing label conditioning that results in 128x128 r…

2016-10-30abs ↗pdf ↗

DreamFusion uses text-to-image diffusion models to create 3D images efficiently.

problem Lack of large-scale 3D datasets and efficient architectures for 3D synthesis.
method Adapting a 2D diffusion model to 3D synthesis using a loss based on probability density distillation.
result A 3D model can be optimized from a 2D diffusion model, allowing for text-to-3D synthesis.

Worldsheet wraps a 3D mesh sheet onto a single image to synthesize novel views.

problem Synthesizing novel views from a single image with large viewpoint changes.
method Shrink-wrapping a planar mesh sheet onto the input image, consistent with learned depth.
result Worldsheet consistently outperforms prior methods on single-image view synthesis.

Generative models learn complex spatial patterns using program synthesis.

problem Capturing complex global structure in data, especially in images.
method Incorporates programs representing global structure into generative models and learns these models through program synthesis.
result Significantly better at generating and completing images with global structure compared to state-of-the-art methods.

Program synthesis struggles with complex spatial relationships in image classification.

problem Challenges in solving Synthetic Visual Reasoning Test problems.
method Quantitative reanalysis of human and machine performance, improved program synthesis classifier, categorization of SVRT problems.
result Program synthesis is constrained by spatial relationships in images, not just shape specification.

DiffDenoise preserves fine structures in medical images using conditional diffusion models.

problem Medical image denoising often results in loss of fine structures.
method Conditional diffusion model with stabilized reverse sampling and supervised training.
result DiffDenoise outperforms state-of-the-art methods in medical image denoising.

Machine vision-guided 3D medical image compression improves segmentation accuracy.

problem High data traffic and computation costs in cloud-based medical image analysis.
method Developed a machine vision-oriented 3D image compression framework for medical segmentation.
result Significantly higher segmentation accuracy at the same compression rate or better compression rate under the same accuracy.

Unified deep learning predicts Parkinson's disease from medical images.

problem Diagnosing Parkinson's disease accurately from medical images.
method Transfer learning and domain adaptation using deep convolutional and recurrent neural networks.
result The approach effectively predicts Parkinson's disease across different medical environments.

A GAN variant synthesizes missing MRI sequences from available ones.

problem Missing MRI sequences due to various constraints.
method Multi-modal Generative Adversarial Network (GAN) that combines multiple available sequences to synthesize missing ones.
result The proposed GAN method outperforms competing approaches in synthesizing missing MRI sequences.

A new algorithm improves medical image grading accuracy.

problem Improving automatic grading of medical images for disease severity or risk score.
method Sparse range-constrained learning (SRCL) algorithm integrating sparse representation and grading.
result Improves accuracy in cup-to-disc ratio computation and cataract grading.

A new NAS framework optimizes 3D medical image segmentation architectures.

problem Optimizing neural architectures for high-resolution 3D medical images.
method Stochastic sampling algorithm for scalable gradient-based optimization of neural connectivities and operation types in both encoder and decoder.
result Automatically designed architecture outperforms human-designed U-Net.