Search Results for author: Mengqi Ji

Found 10 papers, 7 papers with code

Cross-Camera Deep Colorization

1 code implementation26 Aug 2022 Yaping Zhao, Haitian Zheng, Mengqi Ji, Ruqi Huang

Our method takes cross-domain and cross-scale images as input, and consequently synthesizes HR colorization results to facilitate the trade-off between spatial-temporal resolution and color depth in the single-camera imaging system.

Colorization

EFENet: Reference-based Video Super-Resolution with Enhanced Flow Estimation

1 code implementation15 Oct 2021 Yaping Zhao, Mengqi Ji, Ruqi Huang, Bin Wang, Shengjin Wang

In this paper, we consider the problem of reference-based video super-resolution(RefVSR), i. e., how to utilize a high-resolution (HR) reference frame to super-resolve a low-resolution (LR) video sequence.

Reference-based Video Super-Resolution Video Super-Resolution

Zoom in to the details of human-centric videos

no code implementations27 May 2020 Guanghan Li, Yaping Zhao, Mengqi Ji, Xiaoyun Yuan, Lu Fang

Presenting high-resolution (HR) human appearance is always critical for the human-centric videos.

Pose Estimation Super-Resolution

SurfaceNet+: An End-to-end 3D Neural Network for Very Sparse Multi-view Stereopsis

1 code implementation26 May 2020 Mengqi Ji, Jinzhi Zhang, Qionghai Dai, Lu Fang

Furthermore, the latter problem is handled via a multi-scale strategy that consequently refines the recovered geometry around the region with the repeating pattern.

valid

SPI-Optimizer: an integral-Separated PI Controller for Stochastic Optimization

2 code implementations29 Dec 2018 Dan Wang, Mengqi Ji, Yong Wang, Haoqian Wang, Lu Fang

Inspired by the conditional integration idea in classical control society, we propose SPI-Optimizer, an integral-Separated PI controller based optimizer WITHOUT introducing extra hyperparameter.

Stochastic Optimization

RegNet: Learning the Optimization of Direct Image-to-Image Pose Registration

1 code implementation26 Dec 2018 Lei Han, Mengqi Ji, Lu Fang, Matthias Nießner

Direct image-to-image alignment that relies on the optimization of photometric error metrics suffers from limited convergence range and sensitivity to lighting conditions.

CrossNet: An End-to-end Reference-based Super Resolution Network using Cross-scale Warping

1 code implementation ECCV 2018 Haitian Zheng, Mengqi Ji, Haoqian Wang, Yebin Liu, Lu Fang

The Reference-based Super-resolution (RefSR) super-resolves a low-resolution (LR) image given an external high-resolution (HR) reference image, where the reference image and LR image share similar viewpoint but with significant resolution gap x8.

Patch Matching Reference-based Super-Resolution

SurfaceNet: An End-to-end 3D Neural Network for Multiview Stereopsis

3 code implementations ICCV 2017 Mengqi Ji, Juergen Gall, Haitian Zheng, Yebin Liu, Lu Fang

It takes a set of images and their corresponding camera parameters as input and directly infers the 3D model.

Deep Learning for Surface Material Classification Using Haptic And Visual Information

no code implementations21 Dec 2015 Haitian Zheng, Lu Fang, Mengqi Ji, Matti Strese, Yigitcan Ozer, Eckehard Steinbach

When a user scratches a hand-held rigid tool across an object surface, an acceleration signal can be captured, which carries relevant information about the surface.

Classification General Classification +1

Learning High-level Prior with Convolutional Neural Networks for Semantic Segmentation

no code implementations22 Nov 2015 Haitian Zheng, Yebin Liu, Mengqi Ji, Feng Wu, Lu Fang

Finally, the optimization problem enables us to take advantage of state-of-the-art fully convolutional network structure for the implementation of the above encoders and decoder.

Image Segmentation Segmentation +2

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