This paper describes a vision system based on a PCboard which can calculate a sparse but robust optic flow at frame rate. A correlation chip, which was originally designed for MPEG video compression, is used to calculate displacement vectors between blocks of pixels in consecutive frames. The main disadvantage of similar approaches, the noisiness of the displacement field in areas with weak structure, is compensated by a computational inexpensive confidence criterion, which is calculated for each vector in hardware. The performance of the criterion and the improvements in the flow field are demonstrated by experiments. Keywords robot vision, optic flow, correlation, block-matching Motivation One of the basic problems in robot vision is ...
The authors describe a simple, parallel algorithm that successfully computes an optical flow from se...
Optical flow calculation algorithms are hard to implement on hardware level in real-time due to thei...
The apparent pixel motion in an image sequence, called optical flow, is a useful primitive for autom...
Rapid and low power computation of optical flow (OF) is potentially useful in robotics. The dynamic ...
This thesis describes the development of a real-time vision system for computing optic flow. The com...
Currently two major limitations to applying vision in real tasks are robustness in real-world, uncon...
Optic flow has been a research topic of interest for many years. It has, until recently, been largel...
This thesis introduces a monocular optical flow algorithm that has been shown to perform well at nea...
Optic flow has proven itself to be a powerful sensor modality for a wide range of robotic applicatio...
Numerous robots use vision-based techniques in detecting obstacles and tracking object. As vision be...
In the last few years, researchers shown a growing interest for computer detection and tracking of m...
This paper describes a region-based algorithm for deriving a concise description of a first order op...
The ability to perceive moving object is an important visual modality. An optical flow, which repres...
The paper presents a study of existing Block Matching Optical Flow algorithms, which estimate the mo...
The goal of cost effective, high performance optical systems capable of pattern matching tasks has f...
The authors describe a simple, parallel algorithm that successfully computes an optical flow from se...
Optical flow calculation algorithms are hard to implement on hardware level in real-time due to thei...
The apparent pixel motion in an image sequence, called optical flow, is a useful primitive for autom...
Rapid and low power computation of optical flow (OF) is potentially useful in robotics. The dynamic ...
This thesis describes the development of a real-time vision system for computing optic flow. The com...
Currently two major limitations to applying vision in real tasks are robustness in real-world, uncon...
Optic flow has been a research topic of interest for many years. It has, until recently, been largel...
This thesis introduces a monocular optical flow algorithm that has been shown to perform well at nea...
Optic flow has proven itself to be a powerful sensor modality for a wide range of robotic applicatio...
Numerous robots use vision-based techniques in detecting obstacles and tracking object. As vision be...
In the last few years, researchers shown a growing interest for computer detection and tracking of m...
This paper describes a region-based algorithm for deriving a concise description of a first order op...
The ability to perceive moving object is an important visual modality. An optical flow, which repres...
The paper presents a study of existing Block Matching Optical Flow algorithms, which estimate the mo...
The goal of cost effective, high performance optical systems capable of pattern matching tasks has f...
The authors describe a simple, parallel algorithm that successfully computes an optical flow from se...
Optical flow calculation algorithms are hard to implement on hardware level in real-time due to thei...
The apparent pixel motion in an image sequence, called optical flow, is a useful primitive for autom...