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Haotian Tang

16 accepted papers

2025

Deep Compression Autoencoder for Efficient High-Resolution Diffusion Models

ICLR 2025poster

We present Deep Compression Autoencoder (DC-AE), a new family of autoencoders for accelerating high-resolution diffusion models. Existing autoencodes have demonstrated impressive results at a moderate spatial compression ratio (e.g., 8x), but fail to maintain satisfactory reconstruction accuracy for…

2025

DuoAttention: Efficient Long-Context LLM Inference with Retrieval and Streaming Heads

ICLR 2025poster

Deploying long-context large language models (LLMs) is essential but poses significant computational and memory challenges. Caching all Key and Value (KV) states across all attention heads consumes substantial memory. Existing KV cache pruning methods either damage the long-context capabilities of L…

2025

HART: Efficient Visual Generation with Hybrid Autoregressive Transformer

ICLR 2025poster

We introduce Hybrid Autoregressive Transformer (HART), the first autoregressive (AR) visual generation model capable of directly generating 1024x1024 images, rivaling diffusion models in image generation quality. Existing AR models face limitations due to the poor image reconstruction quality of the…

2025

LongVILA: Scaling Long-Context Visual Language Models for Long Videos

ICLR 2025poster

Long-context capability is critical for multi-modal foundation models, especially for long video understanding. We introduce LongVILA, a full-stack solution for long-context visual-language models by co-designing the algorithm and system. For model training, we upgrade existing VLMs to support long…

2025

NVILA: Efficient Frontier Visual Language Models

CVPR 2025poster

Visual language models (VLMs) have made significant advances in accuracy in recent years. However, their efficiency has received much less attention. This paper introduces NVILA, a family of open VLMs designed to optimize both efficiency and accuracy. Building on top of VILA, we improve its model ar…

Cited by 43SourcePDFScholar
2025

SANA: Efficient High-Resolution Text-to-Image Synthesis with Linear Diffusion Transformers

ICLR 2025oral

We introduce Sana, a text-to-image framework that can efficiently generate images up to 4096$\times$4096 resolution. Sana can synthesize high-resolution, high-quality images with strong text-image alignment at a remarkably fast speed, deployable on laptop GPU. Core designs include: (1) Deep compress…

Cited by 79SourcePDFScholar
2025

VILA-U: a Unified Foundation Model Integrating Visual Understanding and Generation

ICLR 2025poster

VILA-U is a Unified foundation model that integrates Video, Image, Language understanding and generation. Traditional visual language models (VLMs) use separate modules for understanding and generating visual content, which can lead to misalignment and increased complexity. In contrast, VILA-U emplo…

2024

LongLoRA: Efficient Fine-tuning of Long-Context Large Language Models

ICLR 2024oral

We present LongLoRA, an efficient fine-tuning approach that extends the context sizes of pre-trained large language models (LLMs), with limited computation cost. Typically, training LLMs with long context sizes is computationally expensive, requiring extensive training hours and GPU resources. For e…

2024

MoST: Multi-Modality Scene Tokenization for Motion Prediction

CVPR 2024poster

Many existing motion prediction approaches rely on symbolic perception outputs to generate agent trajectories such as bounding boxes road graph information and traffic lights. This symbolic representation is a high-level abstraction of the real world which may render the motion prediction model vuln…

Cited by 9SourcePDFScholar
2024

Sparse Refinement for Efficient High-Resolution Semantic Segmentation

ECCV 2024poster

"Semantic segmentation empowers numerous real-world applications, such as autonomous driving and augmented/mixed reality. These applications often operate on high-resolution images (, 8 megapixels) to capture the fine details. However, this comes at the cost of considerable computational complexity,…

2023

BEVFusion: Multi-Task Multi-Sensor Fusion with Unified Bird's-Eye View Representation

ICRA 2023poster

Multi-sensor fusion is essential for an accurate and reliable autonomous driving system. Recent approaches are based on point-level fusion: augmenting the LiDAR point cloud with camera features. However, the camera-to-LiDAR projection throws away the semantic density of camera features, hindering th…

Cited by 1130SourcecodeScholar
2023

FlatFormer: Flattened Window Attention for Efficient Point Cloud Transformer

CVPR 2023poster

Transformer, as an alternative to CNN, has been proven effective in many modalities (e.g., texts and images). For 3D point cloud transformers, existing efforts focus primarily on pushing their accuracy to the state-of-the-art level. However, their latency lags behind sparse convolution-based models…

Cited by 89SourcePDFScholar
2023

SparseViT: Revisiting Activation Sparsity for Efficient High-Resolution Vision Transformer

CVPR 2023poster

High-resolution images enable neural networks to learn richer visual representations. However, this improved performance comes at the cost of growing computational complexity, hindering their usage in latency-sensitive applications. As not all pixels are equal, skipping computations for less-importa…

Cited by 55SourcePDFScholar
2021

SemAlign: Annotation-Free Camera-LiDAR Calibration with Semantic Alignment Loss

IROS 2021poster

Multi-sensor solution has been widely adopted in real-world robotics systems (e.g., self-driving vehicles) due to its better robustness. However, its performance is highly dependent on the accurate calibration between different sensors, which is very time-consuming (i.e., hours of human efforts) to…

Cited by 22SourceScholar
2020

Searching Efficient 3D Architectures with Sparse Point-Voxel Convolution

ECCV 2020poster

Self-driving cars need to understand 3D scenes efficiently and accurately in order to drive safely. Given the limited hardware resources, existing 3D perception models are not able to recognize small instances (e.g., pedestrians, cyclists) very well due to the low-resolution voxelization and aggress…