activity
20242026
collaborators

11 papers

cs.CV2026

NitroFusion2: Bringing Adversarial Loss to the Text Stream of Multimodal Diffusion Transformers

Dar-Yen Chen, Yi-Zhe Song

Adversarial diffusion distillation has conventionally relied on image features for discrimination. We revisit this choice for multimodal diffusion transformers (MMDiTs), whose text…

cs.CV2026

Context-Matched Distillation: Teacher Causality for Autoregressive Video Distillation

Hmrishav Bandyopadhyay, Xuanchi Ren, Zijian Huang +7

Interactive autoregressive video generation demands both low-latency rollouts and precise online control. Few-step distillation accelerates generation by reducing denoising steps,…

cs.CV2026

CaricHarmony: Contrastive Diffusion Paths for Identity-Preserving Caricature Synthesis

Dongyu Wang, Dar-Yen Chen, Yi-Zhe Song

Sketch-based caricature synthesis suffers from a fundamental failure mode: when identity and shape conditions are combined in diffusion models, they create destructive interference…

cs.CV2025

Block Cascading: Training Free Acceleration of Block-Causal Video Models

Hmrishav Bandyopadhyay, Nikhil Pinnaparaju, Rahim Entezari +3

Block-causal video generation faces a stark speed-quality trade-off: small 1.3B models manage only 16 FPS while large 14B models crawl at 4.5 FPS, forcing users to choose between r…

cs.CV2025

FrontierGS: Progressive View-Space Frontier Expansion for Sparse 3D Gaussian Splatting

Zijian Wu, Mingfeng Jiang, Zidian Lin +6

3D Gaussian Splatting (3DGS) enables efficient, high-fidelity novel view synthesis, yet its performance degrades severely under sparse-view supervision due to extreme ill-posedness…

cs.CV2025

SD3.5-Flash: Distribution-Guided Distillation of Generative Flows

Hmrishav Bandyopadhyay, Rahim Entezari, Jim Scott +3

We present SD3.5-Flash, an efficient few-step distillation framework that brings high-quality image generation to accessible consumer devices. Our approach distills computationally…

cs.CV2025

MotionFlow:Learning Implicit Motion Flow for Complex Camera Trajectory Control in Video Generation

Guojun Lei, Chi Wang, Yikai Wang +3

Generating videos guided by camera trajectories poses significant challenges in achieving consistency and generalizability, particularly when both camera and object motions are pre…

cs.CV2025

SketchAnimator: Animate Sketch via Motion Customization of Text-to-Video Diffusion Models

Ruolin Yang, Da Li, Honggang Zhang +1

Sketching is a uniquely human tool for expressing ideas and creativity. The animation of sketches infuses life into these static drawings, opening a new dimension for designers. An…

cs.CV2025

Normalized Attention Guidance: Universal Negative Guidance for Diffusion Models

Dar-Yen Chen, Hmrishav Bandyopadhyay, Kai Zou +1

Negative guidance -- explicitly suppressing unwanted attributes -- remains a fundamental challenge in diffusion models, particularly in few-step sampling regimes. While Classifier-…

cs.CV2024

NitroFusion: High-Fidelity Single-Step Diffusion through Dynamic Adversarial Training

Dar-Yen Chen, Hmrishav Bandyopadhyay, Kai Zou +1

We introduce NitroFusion, a fundamentally different approach to single-step diffusion that achieves high-quality generation through a dynamic adversarial framework. While one-step…

cs.GR2024

FlipSketch: Flipping Static Drawings to Text-Guided Sketch Animations

Hmrishav Bandyopadhyay, Yi-Zhe Song

Sketch animations offer a powerful medium for visual storytelling, from simple flip-book doodles to professional studio productions. While traditional animation requires teams of s…