14 citations · 35 across the 6 of their papers we have counts for
8 papers · 1 filter
BabelCalib: A Universal Approach to Calibrating Central Cameras
Yaroslava Lochman, Kostiantyn Liepieshov, Jianhui Chen +3
Existing calibration methods occasionally fail for large field-of-view cameras due to the non-linearity of the underlying problem and the lack of good initial values for all parame…
Adapting Grad-CAM for Embedding Networks
Lei Chen, Jianhui Chen, Hossein Hajimirsadeghi +1
The gradient-weighted class activation mapping (Grad-CAM) method can faithfully highlight important regions in images for deep model prediction in image classification, image capti…
Pan-tilt-zoom SLAM for Sports Videos
Jikai Lu, Jianhui Chen, James J. Little
We present an online SLAM system specifically designed to track pan-tilt-zoom (PTZ) cameras in highly dynamic sports such as basketball and soccer games. In these games, PTZ camera…
Sports Camera Calibration via Synthetic Data
Jianhui Chen, James J. Little
Calibrating sports cameras is important for autonomous broadcasting and sports analysis. Here we propose a highly automatic method for calibrating sports cameras from a single imag…
Learning Sports Camera Selection from Internet Videos
Jianhui Chen, Keyu Lu, Sijia Tian +1
This work addresses camera selection, the task of predicting which camera should be "on air" from multiple candidate cameras for soccer broadcast. The task is challenging because o…
A Two-point Method for PTZ Camera Calibration in Sports
Jianhui Chen, Fangrui Zhu, James J. Little
Calibrating narrow field of view soccer cameras is challenging because there are very few field markings in the image. Unlike previous solutions, we propose a two-point method, whi…