A High-Frame-Rate Vision System with Automatic Exposure Control

High Frame-Rate Television

The frame and field rates that have been used for television since the 1930s cause problems for motion portrayal, which are increasingly evident on the large, high-resolution television displays that are now common. In this paper we report on a programme of experimental work that successfully demonstrated the advantages of higher frame rate capture and display as a means of improving the qualit...

High Frame Rate Egomotion Estimation

In this paper, we present an algorithm for doing high frame rate egomotion estimation. We achieve this by using a basis flow model, along with a novel inference algorithm, that uses spatio-temporal gradients, foregoing the computation of the slow and noisy optical flow. The inherent linearity in our model allows us to achieve fine grained parallelism. We demonstrate this by running our algorith...

Vision Based Control Approach to High Speed Automatic Vehicle Guidance

Automatic Camera Exposure Control

It is commonplace to use digital video cameras in robotic applications. These cameras have built-in exposure control but they do not have any knowledge of the environment, the lens being used, the important areas of the image and do not always produce optimal image exposure. Therefore, it is desirable and often necessary to control the exposure off the camera. In this paper we present a scheme ...

Implementation of Automatic Focusing Algorithms for a Computer Vision System with Camera Control

The POPEYP s:istem is a grey level computer vision system developed at CMU for research and development. The system provides a convenient environnient for research by coupling a powerful niicroproccssor with a large base of support software. The particulars of the system’s hardware configuration and software support are given after an explanation of the desires which motivated its fabricat ion....