Photo time-stamp detection and recognition (2008)
Xiangrong Chen, Hong-jiang Zhang
This paper addresses the problem of photo time-stamp detection and recognition, which is to determine the time a photo was taken. Since the time-stamp is exposed together with the scene, the main...
Person and Gesture Tracking with Smart Stereo Cameras (2008)
Gaile Gordon, Xiangrong Chen, Ron Buck
Physical security increasingly involves sophisticated, real-time visual tracking of a person’s location inside a given environment, often in conjunction with biometrics and other security-related...
Zhuowen Tu, Xiangrong Chen, Alan L. Yuille, Song-chun Zhu
In this paper we present a Bayesian framework for parsing images into their constituent visual patterns. The parsing algorithm optimizes the posterior probability and outputs a scene representation...
Text Area Detection from Video Frames 1 Text Area Detection from Video Frames (2007)
Xiangrong Chen, Hongjiang Zhang
Abstract. Text area detection from video frame is an essential step for Video OCR. The key problem is the complex background of the video frames. This paper proposes a novel approach to this problem....
Image Parsing Unifying Segmentation, Detection, and Recognition (2006)
Tu, Zhuowen, Chen, Xiangrong, Yuille, Alan L, Zhu, Song-Chun
In this paper we present a Bayesian framework for parsing images into their constituent visual patterns. The parsing algorithm optimizes the posterior probability and outputs a scene representation...
Image Parsing: Unifying Segmentation, Detection, and Recognition (2005)
Tu, Zhouwen, Chen, Xiangrong, Yuille, Alan L, Zhu, Song-Chun
In this paper we present a Bayesian framework for parsing images into their constituent visual patterns. The parsing algorithm optimizes the posterior probability and outputs a scene representation...
Image Parsing: Unifying Segmentation, Detection, and Recognition (2005)
Tu, Zhuowen, Chen, Xiangrong, Yuille, Alan L, Zhu, Song-Chun
In this chapter we present a Bayesian framework for parsing images into their constituent visual patterns. The parsing algorithm optimizes the posterior probability and outputs a scene representation...
AdaBoost Learning for Detecting and Reading Text in City Scenes (2004)
Chen, Xiangrong, Yuille, Alan L
This paper gives an algorithm for detecting and reading text in natural images. The algorithm is intended for use by blind and visually impaired subjects walking through city scenes. We first obtain...
Zhuowen Tu, Xiangrong Chen, Alan L. Yuille, Song-chun Zhu
Abstract. In this paper we present a Bayesian framework for parsing images into their constituent visual patterns. The parsing algorithm optimizes the posterior probability and outputs a scene...
Image parsing: Unifying segmentation, detection, and recognition (2003)
Zhuowen Tu, Xiangrong Chen, Alan L. Yuille, Song-chun Zhu
We propose a general framework for parsing images into regions and objects. In this framework, the detection and recognition of objects proceed simultaneously with image segmentation in a competitive...