Real-time visual tracking based on improved perceptual hashing

Real-Time Model-Based Visual Tracking

This paper describes a robust approach to real-time model-based visual tracking and servoing for rigid polyhedral objects moving with 3 degrees of freedom. It is recognized that low-level feature segmentation is not infallible. Uncertainty measures enter into all computations to account for varying degrees of confidence in the measured object features. Robust tracking and servoing has been demo...

Real-Time Perceptual Rendering with Computational Visual Attention Tracking in Virtual Environments Real-Time Perceptual Rendering with Computational Visual Attention Tracking in Virtual Environments

Image authentication using LBP-based perceptual image hashing

Feature extraction is a main step in all perceptual image hashing schemes in which robust features will led to better results in perceptual robustness. Simplicity, discriminative power, computational efficiency and robustness to illumination changes are counted as distinguished properties of Local Binary Pattern features. In this paper, we investigate the use of local binary patterns for percep...

Speech Authentication Based on Perceptual Fingerprint Hashing

A perceptual fingerprint hashing method is proposed for audio authentication in this paper. First, the biologic fingerprint image is divided into overlapping rectangle blocks by randomly using a chaotic sequence, and then the gravity center of each block is calculated. Finally, the perceptual Hashing value is generated based on the gravity center of each block. To authenticate the speech identi...

New Wavelet Based Algorithm for Real Time Visual Tracking

in this paper, we propose a new technique in wavelet domain for real time object detection and tracking in a sequence of images. The object to be tracked is identified in the first frame. Our proposed algorithm consists of two phases: the first, wavelet based edge detection is used to form ground boundary map. Then, Object dimensions estimation is implemented to determine probabilistic object a...