Accession Number : ADA336627

Title :   Cortical Oscillations in the Visual Cortex.

Descriptive Note : Final rept. Jan 95-Dec 96

Corporate Author : ARMY RESEARCH LAB ATLANTA GA

Personal Author(s) : Raglin, Adrienne

PDF Url : ADA336627

Report Date : NOV 1997

Pagination or Media Count : 46

Abstract : Computer vision deals with algorithms that allow machines to detect, segment, feature extract, and recognize objects in an image. There are numerous applications in medicine, manufacturing, and security for this technology. By studying the visual processes of biological systems, enhancements can be achieved in the development of computer vision algorithms. One biological function of interest involves the oscillatory pulses generated in the primary visual cortex engaged in stimulus-specific oscillatory responses. As a result of these experiments, it can be concluded that these tightly correlated, stimulus-induced oscillations may play a role in the recognition of images. Therefore, these cortical oscillations have been modeled to investigate their ability to segment objects in a visual field. This report briefly discusses the visual system and the internally stimulus-dependent oscillations that may lead to identification of images. Emphasis will be on the models that attempt to reproduce this biological phenomena, their computational and behavioral aspects, as well as simulation performance. Detail will be given to their computational and behavioral aspects since it is in these areas that possible improvements can be achieved through more detailed modeling.

Descriptors :   *COMPUTER PROGRAMS, *NEURAL NETS, *TARGET RECOGNITION, *COMPUTER VISION, *OSCILLATION, *VISUAL CORTEX, ALGORITHMS, FUNCTIONS, SIMULATION, STIMULATION(GENERAL), BIOLOGY, MEDICINE, PULSES, INTERNAL, IMAGES, RECOGNITION, VISION.

Subject Categories : Anatomy and Physiology
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE