Tham khảo tài liệu 'báo cáo hóa học: " research article quantification and standardized description of color vision deficiency caused by anomalous trichromats—part ii: modeling and color compensation"', luận văn - báo cáo phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2008 Article ID 246014 12 pages doi 2008 246014 Research Article Quantification and Standardized Description of Color Vision Deficiency Caused by Anomalous Trichromats Part II Modeling and Color Compensation Seungji Yang 1 Yong Man Ro 1 Edward K. Wong 2 and Jin-Hak Lee3 1 Image and Video Systems Laboratory Information and Communications University Munji 119 Yuseong Daejeon 305-732 South Korea 2 Deptartment of Ophthalmology University of California at Irvine Irvine CA 92697-4375 USA 3 Department of Ophthalmology Seoul National University Hospital 28 Yongon-Dong Chongno-Gu Seoul 110-744 South Korea Correspondence should be addressed to Yong Man Ro yro@ Received 8 October 2007 Revised 14 December 2007 Accepted 22 December 2007 Recommended by Alain Tremeau A color compensation scheme has been developed to enhance the perception of people with color vision deficiency CVD and for people suffering from anomalous trichromacy. It is operated within the MPEG-21 Multimedia Framework which provides a standardized description of CVD. The basic idea behind the proposed color compensation consists of simulating the path of human color perception. As such compensated color is realized by relying on the spectral cone sensitivities of the human eye and the spectral emission functions of the display device. For quantified color compensation the spectral sensitivity of anomalous cones has been modeled according to the deficiency degree of the standardized CVD description. The latter is based on the error score of a computerized hue test CHT developed in Part I of our study. Given the anomalous cone spectra the reduction of error score on the CHT after color compensation was measured in each deficiency degree. The quantitative relationship of color compensation with the error score is linearly regressed based on the deficiency degree with the least error score after color compensation .
