Image processing based auxiliary system for vision defects

• Main Authors: G.R.Gao, 高國榮
• Other Authors: 賴金輪
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/6zq5a6

碩士 === 亞東技術學院 === 資訊與通訊工程研究所 === 96 === Facilitated by the exponential advancements in the information technology in the Twenty-first Century, the general public has been instilling an increasing degree of importance in vision as the conduit for exploring the information. Nevertheless, receiving the information from the external world poses a relative degree of difficulty for those visually impaired. Among the visually impaired individuals, however, the totally blind population only accounts for a minor proportion. A majority of the visually impaired population still exhibit a relative degree of visual functions. How to utilize the effective methods for enhancing the degree of sensitivity to the visual information will be regarded as the purpose of developing the auxiliary gadgets for the visually impaired. In view of this, the main purpose of this research is to develop a set of auxiliary devices specifically for patients diagnosed with color blindness, minimum degree of eyesight, and visual field defects. Though simple experimental diagnoses, subjects were evaluated for their response status in terms of colors, visual fields, and visual sensitivities. Further, the visual deficiencies exhibited by the subjects would then be compensated or adjusted through the theories and techniques based on the human color visual model, image minimization and enlargement, and image enhancement. Synergized with the microscopic imaging instruments, the purpose of assisting the visually impaired individuals to familiarize with the surrounding environment and fortifying the visual senses through the auxiliary visual information system could then be achieved. Lastly, the images were appropriately modified according to each individual’s visual variations for achieving one’s needs for visual information acquisition.