Search Results for author: Hyowon Ha

Found 8 papers, 2 papers with code

Facial Depth and Normal Estimation using Single Dual-Pixel Camera

no code implementations25 Nov 2021 Minjun Kang, Jaesung Choe, Hyowon Ha, Hae-Gon Jeon, Sunghoon Im, In So Kweon, Kuk-Jin Yoon

Many mobile manufacturers recently have adopted Dual-Pixel (DP) sensors in their flagship models for faster auto-focus and aesthetic image captures.

Deltille Grids for Geometric Camera Calibration

no code implementations ICCV 2017 Hyowon Ha, Michal Perdoch, Hatem Alismail, In So Kweon, Yaser Sheikh

The recent proliferation of high resolution cameras presents an opportunity to achieve unprecedented levels of precision in visual 3D reconstruction.

3D Reconstruction Camera Calibration

Noise Robust Depth From Focus Using a Ring Difference Filter

no code implementations CVPR 2017 Jaeheung Surh, Hae-Gon Jeon, Yunwon Park, Sunghoon Im, Hyowon Ha, In So Kweon

With the result from the FM, the role of a DfF pipeline is to determine and recalculate unreliable measurements while enhancing those that are reliable.

High-Quality Depth From Uncalibrated Small Motion Clip

1 code implementation CVPR 2016 Hyowon Ha, Sunghoon Im, Jaesik Park, Hae-Gon Jeon, In So Kweon

We propose a novel approach that generates a high-quality depth map from a set of images captured with a small viewpoint variation, namely small motion clip.

Camera Calibration Vocal Bursts Intensity Prediction

High Quality Structure From Small Motion for Rolling Shutter Cameras

no code implementations ICCV 2015 Sunghoon Im, Hyowon Ha, Gyeongmin Choe, Hae-Gon Jeon, Kyungdon Joo, In So Kweon

To address these problems, we introduce a novel 3D reconstruction method from narrow-baseline image sequences that effectively handles the effects of a rolling shutter that occur from most of commercial digital cameras.

3D Reconstruction Depth Estimation +1

Accurate Camera Calibration Robust to Defocus Using a Smartphone

no code implementations ICCV 2015 Hyowon Ha, Yunsu Bok, Kyungdon Joo, Jiyoung Jung, In So Kweon

We propose a novel camera calibration method for defocused images using a smartphone under the assumption that the defocus blur is modeled as a convolution of a sharp image with a Gaussian point spread function (PSF).

Camera Calibration

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