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Lianlei Shan

7 accepted papers

2026

F2Net: A Frequency-Fused Network for Ultra-High Resolution Remote Sensing Segmentation

CVPR 2026

Semantic segmentation of ultra-high-resolution (UHR) remote sensing imagery is critical for applications like environmental monitoring and urban planning but faces com- putational and optimization challenges. Conventional methods either lose fine details through downsampling or fragment global conte

Cited by 0SourcecodeScholar
2026

GeoGramBench: Benchmarking the Geometric Program Reasoning in Modern LLMs

ICLR 2026poster

Geometric spatial reasoning forms the foundation of many applications in artificial intelligence, yet the ability of large language models (LLMs) to operate over geometric spatial information expressed in procedural code remains underexplored. In this paper, we address this gap by formalizing the \t…

Cited by 0SourcecodeScholar
2026

Think Less, Act Early: Reinforced Latent Reasoning with Early Exit in Vision-Language-Action Models

ICML 2026poster

Existing Vision-Language-Action (VLA) models predominantly rely on explicit Chain-of-Thought (CoT) reasoning to bridge perception and action. While effective, this paradigm suffers from high computational costs and error propagation in multi-step tasks. In this paper, we propose Adaptive Variable Al…

Cited by 0SourceScholar
2026

Thinking on the Fly: Test-Time Reasoning Enhancement via Latent Thought Policy Optimization

ICLR 2026poster

Recent advancements in Large Language Models (LLMs) have shifted from explicit Chain-of-Thought (CoT) reasoning to more efficient latent reasoning, where intermediate thoughts are represented as vectors rather than text. However, latent reasoning can be brittle on challenging, out-of-distribution ta…

Cited by 0SourcecodeScholar
2022

MBNet: A Multi-Resolution Branch Network for Semantic Segmentation Of Ultra-High Resolution Images

ICASSP 2022accepted

Semantic segmentation of ultra-high resolution images is more challenging than ordinary images since high-resolution images need to be cropped into patches in training due to GPU memory limitation. To solve this problem, we design a multibranch structure to deal with multi-resolution inputs, called…

Cited by 0SourceScholar
2021

Decouple the High-Frequency and Low-Frequency Information of Images for Semantic Segmentation

ICASSP 2021accepted

As a special kind of signal processing technology, image processing has been developed rapidly after the appearance of convolutional neural network (CNN). At present, the semantic segmentation methods are all based on CNN and ignore the advantages of traditional image processing technology. We combi…

Cited by 0SourceScholar