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David Ahmedt-Aristizabal

6 accepted papers

2026

BiFM: Bidirectional Flow Matching for Few-Step Image Editing and Generation

CVPR 2026

Recent diffusion and flow matching models have demonstrated strong capabilities in image generation and editing by progressively removing noise through iterative sampling. While this enables flexible inversion for semantic-preserving edits, few-step sampling regimes suffer from poor forward process

Cited by 1SourceScholar
2025

DCHM: Depth-Consistent Human Modeling for Multiview Detection

ICCV 2025poster

Multiview pedestrian detection typically involves two stages: human modeling and pedestrian localization. Human modeling represents pedestrians in 3D space by fusing multiview information, making its quality crucial for detection accuracy. However, existing methods often introduce noise and have low…

Cited by 0SourcePDFScholar
2025

Puzzles: Unbounded Video-Depth Augmentation for Scalable End-to-End 3D Reconstruction

NeurIPS 2025poster

Multi-view 3D reconstruction remains a core challenge in computer vision. Recent methods, such as DUSt3R and its successors, directly regress pointmaps from image pairs without relying on known scene geometry or camera parameters. However, the performance of these models is constrained by the divers…

Cited by 0SourceScholar
2024

Backpropagation-free Network for 3D Test-time Adaptation

CVPR 2024poster

Real-world systems often encounter new data over time which leads to experiencing target domain shifts. Existing Test-Time Adaptation (TTA) methods tend to apply computationally heavy and memory-intensive backpropagation-based approaches to handle this. Here we propose a novel method that uses a bac…

2024

HashPoint: Accelerated Point Searching and Sampling for Neural Rendering

CVPR 2024highlight

In this paper we address the problem of efficient point searching and sampling for volume neural rendering. Within this realm two typical approaches are employed: rasterization and ray tracing. The rasterization-based methods enable real-time rendering at the cost of increased memory and lower fidel…

2024

NeRF Director: Revisiting View Selection in Neural Volume Rendering

CVPR 2024poster

Neural Rendering representations have significantly contributed to the field of 3D computer vision. Given their potential considerable efforts have been invested to improve their performance. Nonetheless the essential question of selecting training views is yet to be thoroughly investigated. This ke…