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Junhao Chen

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Preprint Aug 2026

Agogic: Performance-Timed Music Tokens for LLM-Native Text-to-Symbolic-Music Generation

Text-to-music language models begin with a choice usually made by default: how to tokenize music, and the ordering is clean and surprising: representation, not model size, is the binding variable for distributional fidelity.

Junhao Chen, Ming-Jin Chen, Jingjia Mao et al. · 1 citation
Jul 2026

Engine-Native Editable 3D World Reconstruction with Objects and Lighting

Editable 3D scene creation requires object instances and lights that can be inspected, moved, and imported into standard engines, yet existing single-image methods largely stop at room-scale geometry, baked/global illumination, or text-driven generation. We introduce Lumera (Light-aware Unified Engine-native Reconstruc...

Junhao Chen, Xinghao Chen, Henghaofan Zhang et al. · 2 citations

FineVLA: Fine-Grained Instruction Alignment for Steerable Vision-Language-Action Policies

FineVLA, an open framework for action-aligned fine-grained VLA supervision, is introduced and the largest real-world gains appear on pose, color, and approach direction, and approach direction--factors where goal-level instructions provide no guidance.

Xin-Tong Hu, Xuhong Huang, Jin-Yu Zhang et al. · 4 citations
Jul 2026

Bunraku: Turning a Single Illustration into an Editable Live2D Character

This work presents the first system that, from a single illustration, generates all the structured information a Live2D runtime consumes: ordered RGBA layers, a deformation mesh per layer, and the parameter-driven keypose vertex offsets that make the character move.

Junhao Chen, Jingjia Mao, Dayong Li et al. · 0 citations
Preprint Jul 2026

Video Models as Native 4D Renderers: World-Grounded Conditioning from Animated Mesh

D, a reference-guided renderer that extends Wan2.2 camera control from Plucker rays alone to a joint camera-plus-geometry interface and projects a neural 4D G-buffer from the animated mesh and injects it through a widened control adapter while preserving the pretrained image-to-video prior, supporting tracking+world-po...

Junhao Chen, Mingjin Chen, Henghaofan Zhang et al. · 0 citations

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