A high-frame-rate dense motion vector field generation processor with simplified best-match searching circuitries

An Ego-Motion Detection System Employing Directional-Edge-Based Motion Field Representations

“…This work is aiming at building an ego-motion detection system using dedicated VLSI chips developed for real time motion field generation at low powers [1], [2]. Directional edge maps are utilized instead of original gray-scale images to represent local features of an image and to detect the local motion component in a moving image sequence.…”

“…7. The VLSI hardware implementation of such a local motion detection algorithm proposed here has already been developed in our group aiming at real-time performance of a system [1], [2].…”

“…The VLSI hardware implementation of the basic components of this system, such as motion field generation and template matching, have already been developed as separate works in our group aiming at real-time operation [1], [2], [44]- [46].…”

“…We have developed the present system so that it is compatible to the motion field generation VLSI chips [1], [2] developed in a separate project. Therefore, the image size was restricted to 256 × 256 pixels, the specification of these chips.…”

“…High-frame-rate motion field generation chips [1], [2] have already been developed for use in motion analysis including gesture perception [5] as well as object tracking [6]. The present ego motion algorithm has been developed so that it is compatible to the VLSI-chip-based system.…”