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Fahim Mannan

13 accepted papers

2024

Flow-Guided Online Stereo Rectification for Wide Baseline Stereo

CVPR 2024poster

Stereo rectification is widely considered "solved" due to the abundance of traditional approaches to perform rectification. However autonomous vehicles and robots in-the-wild require constant re-calibration due to exposure to various environmental factors including vibration and structural stress wh…

Cited by 2SourcePDFScholar
2024

Neural Exposure Fusion for High-Dynamic Range Object Detection

CVPR 2024poster

Computer vision in unconstrained outdoor scenarios must tackle challenging high dynamic range (HDR) scenes and rapidly changing illumination conditions. Existing methods address this problem with multi-capture HDR sensors and a hardware image signal processor (ISP) that produces a single fused image…

Cited by 2SourcePDFScholar
2023

Gated Stereo: Joint Depth Estimation From Gated and Wide-Baseline Active Stereo Cues

CVPR 2023highlight

We propose Gated Stereo, a high-resolution and long-range depth estimation technique that operates on active gated stereo images. Using active and high dynamic range passive captures, Gated Stereo exploits multi-view cues alongside time-of-flight intensity cues from active gating. To this end, we pr…

Cited by 8SourcePDFScholar
2023

The Differentiable Lens: Compound Lens Search Over Glass Surfaces and Materials for Object Detection

CVPR 2023poster

Most camera lens systems are designed in isolation, separately from downstream computer vision methods. Recently, joint optimization approaches that design lenses alongside other components of the image acquisition and processing pipeline--notably, downstream neural networks--have achieved improved…

2022

Gated2Gated: Self-Supervised Depth Estimation From Gated Images

CVPR 2022oral

Gated cameras hold promise as an alternative to scanning LiDAR sensors with high-resolution 3D depth that is robust to back-scatter in fog, snow, and rain. Instead of sequentially scanning a scene and directly recording depth via the photon time-of-flight, as in pulsed LiDAR sensors, gated imagers e…

Cited by 20PDFcodeScholar
2021

Gated3D: Monocular 3D Object Detection From Temporal Illumination Cues

ICCV 2021poster

Today's state-of-the-art methods for 3D object detection are based on lidar, stereo, or monocular cameras. Lidar-based methods achieve the best accuracy, but have a large footprint, high cost, and mechanically-limited angular sampling rates, resulting in low spatial resolution at long ranges. Recent…

Cited by 14PDFScholar
2020

Hardware-in-the-Loop End-to-End Optimization of Camera Image Processing Pipelines

CVPR 2020oral

Commodity imaging systems rely on hardware image signal processing (ISP) pipelines. These low-level pipelines consist of a sequence of processing blocks that, depending on their hyperparameters, reconstruct a color image from RAW sensor measurements. Hardware ISP hyperparameters have a complex inter…

Cited by 80PDFScholar
2020

Seeing Around Street Corners: Non-Line-of-Sight Detection and Tracking In-the-Wild Using Doppler Radar

CVPR 2020poster

Conventional sensor systems record information about directly visible objects, whereas occluded scene components are considered lost in the measurement process. Non-line-of-sight (NLOS) methods try to recover such hidden objects from their indirect reflections - faint signal components, traditionall…

Cited by 163PDFcodeScholar
2020

Seeing Through Fog Without Seeing Fog: Deep Multimodal Sensor Fusion in Unseen Adverse Weather

CVPR 2020poster

The fusion of multimodal sensor streams, such as camera, lidar, and radar measurements, plays a critical role in object detection for autonomous vehicles, which base their decision making on these inputs. While existing methods exploit redundant information in good environmental conditions, they fai…

Cited by 577PDFcodeScholar