Search Results for author: Hwann-Tzong Chen

Found 25 papers, 16 papers with code

Direct Voxel Grid Optimization: Super-fast Convergence for Radiance Fields Reconstruction

1 code implementation22 Nov 2021 Cheng Sun, Min Sun, Hwann-Tzong Chen

Finally, evaluation on five inward-facing benchmarks shows that our method matches, if not surpasses, NeRF's quality, yet it only takes about 15 minutes to train from scratch for a new scene.

Novel View Synthesis

Specialize and Fuse: Pyramidal Output Representation for Semantic Segmentation

no code implementations ICCV 2021 Chi-Wei Hsiao, Cheng Sun, Hwann-Tzong Chen, Min Sun

We present a novel pyramidal output representation to ensure parsimony with our "specialize and fuse" process for semantic segmentation.

Semantic Segmentation Unity

Moving in a 360 World: Synthesizing Panoramic Parallaxes from a Single Panorama

1 code implementation21 Jun 2021 Ching-Yu Hsu, Cheng Sun, Hwann-Tzong Chen

We present Omnidirectional Neural Radiance Fields (OmniNeRF), the first method to the application of parallax-enabled novel panoramic view synthesis.

Novel View Synthesis

DropLoss for Long-Tail Instance Segmentation

1 code implementation13 Apr 2021 Ting-I Hsieh, Esther Robb, Hwann-Tzong Chen, Jia-Bin Huang

Based on this insight, we develop DropLoss -- a novel adaptive loss to compensate for this imbalance without a trade-off between rare and frequent categories.

Instance Segmentation Object Detection +1

HoHoNet: 360 Indoor Holistic Understanding with Latent Horizontal Features

1 code implementation CVPR 2021 Cheng Sun, Min Sun, Hwann-Tzong Chen

We present HoHoNet, a versatile and efficient framework for holistic understanding of an indoor 360-degree panorama using a Latent Horizontal Feature (LHFeat).

3D Room Layouts From A Single RGB Panorama Depth Estimation +1

Learning Camera-Aware Noise Models

1 code implementation ECCV 2020 Ke-Chi Chang, Ren Wang, Hung-Jin Lin, Yu-Lun Liu, Chia-Ping Chen, Yu-Lin Chang, Hwann-Tzong Chen

Modeling imaging sensor noise is a fundamental problem for image processing and computer vision applications.

Noise Estimation

Silhouette-Net: 3D Hand Pose Estimation from Silhouettes

no code implementations28 Dec 2019 Kuo-Wei Lee, Shih-Hung Liu, Hwann-Tzong Chen, Koichi Ito

3D hand pose estimation has received a lot of attention for its wide range of applications and has made great progress owing to the development of deep learning.

3D Hand Pose Estimation

Flat2Layout: Flat Representation for Estimating Layout of General Room Types

no code implementations29 May 2019 Chi-Wei Hsiao, Cheng Sun, Min Sun, Hwann-Tzong Chen

This paper also constructs a benchmark for validating the performance on general layout topologies, where Flat2Layout achieves good performance on general room types.

COCO-GAN: Conditional Coordinate Generative Adversarial Network

no code implementations ICLR 2019 Chieh Hubert Lin, Chia-Che Chang, Yu-Sheng Chen, Da-Cheng Juan, Wei Wei, Hwann-Tzong Chen

The fact that the patch generation process is independent to each other inspires a wide range of new applications: firstly, "Patch-Inspired Image Generation" enables us to generate the entire image based on a single patch.

Image Generation Scene Generation

Instance-Level Meta Normalization

1 code implementation CVPR 2019 Songhao Jia, Ding-Jie Chen, Hwann-Tzong Chen

This paper presents a normalization mechanism called Instance-Level Meta Normalization (ILM~Norm) to address a learning-to-normalize problem.

Point-to-Point Video Generation

3 code implementations ICCV 2019 Tsun-Hsuan Wang, Yen-Chi Cheng, Chieh Hubert Lin, Hwann-Tzong Chen, Min Sun

We introduce point-to-point video generation that controls the generation process with two control points: the targeted start- and end-frames.

Image Manipulation Video Editing +1

COCO-GAN: Generation by Parts via Conditional Coordinating

1 code implementation ICCV 2019 Chieh Hubert Lin, Chia-Che Chang, Yu-Sheng Chen, Da-Cheng Juan, Wei Wei, Hwann-Tzong Chen

On the computation side, COCO-GAN has a built-in divide-and-conquer paradigm that reduces memory requisition during training and inference, provides high-parallelism, and can generate parts of images on-demand.

Face Generation

SwipeCut: Interactive Segmentation with Diversified Seed Proposals

no code implementations18 Dec 2018 Ding-Jie Chen, Hwann-Tzong Chen, Long-Wen Chang

At each round of interaction the user is only presented with a small number of informative query seeds that are far apart from each other.

Interactive Segmentation Semantic Segmentation

Non-local RoI for Cross-Object Perception

no code implementations25 Nov 2018 Shou-Yao Roy Tseng, Hwann-Tzong Chen, Shao-Heng Tai, Tyng-Luh Liu

We present a generic and flexible module that encodes region proposals by both their intrinsic features and the extrinsic correlations to the others.

Instance Segmentation Object Detection +2

Non-local RoIs for Instance Segmentation

no code implementations14 Jul 2018 Shou-Yao Roy Tseng, Hwann-Tzong Chen, Shao-Heng Tai, Tyng-Luh Liu

We introduce the concept of Non-Local RoI (NL-RoI) Block as a generic and flexible module that can be seamlessly adapted into different Mask R-CNN heads for various tasks.

Instance Segmentation Semantic Segmentation

Self Adversarial Training for Human Pose Estimation

1 code implementation8 Jul 2017 Chia-Jung Chou, Jui-Ting Chien, Hwann-Tzong Chen

This paper presents a deep learning based approach to the problem of human pose estimation.

Pose Estimation

Quantitative Analysis of Automatic Image Cropping Algorithms: A Dataset and Comparative Study

1 code implementation5 Jan 2017 Yi-Ling Chen, Tzu-Wei Huang, Kai-Han Chang, Yu-Chen Tsai, Hwann-Tzong Chen, Bing-Yu Chen

Automatic photo cropping is an important tool for improving visual quality of digital photos without resorting to tedious manual selection.

Image Cropping Learning-To-Rank +1

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