Acta Optica Sinica, Volume. 40, Issue 5, 0533001(2020)
Just-Noticeable Difference of Image Contour Rendering for a Laser Projection Television
Contour rendering is one of the most influential factors with respect to the image quality of a laser projection television (TV). Herein, the just-noticeable differences of contour rendering for a laser projection TV are measured and determined using the two-alternative forced-choice method and the staircase 1-up 2-down method. Further, the influential factors with respect to the just-noticeable differences (JNDs) are analyzed, and the similarities and differences of contour rendering with respect to a laser projection TV and a liquid crystal display (LCD) TV are presented. The results denote that the JNDs are considerably affected by the texture features of the image in case of a laser projection TV. The values expressed by σ of one JND differ considerably in case of a laser projection TV and an LCD TV, and the differences between the adjacent JNDs are observed to be similar in case of both the TVs. Finally, a subjective image quality evaluation model, which is helpful for optimizing the image quality, can be established for a laser projection TV based on the experimental results and JNDs with respect to the image attributes, including the white level, black level, and color saturation.
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Feixia Wang, Junyi Wang, Xiaohua Li, Jian Wang, Haotian Liu, Yan Tu. Just-Noticeable Difference of Image Contour Rendering for a Laser Projection Television[J]. Acta Optica Sinica, 2020, 40(5): 0533001
Category: Vision, Color, and Visual Optics
Received: Oct. 15, 2019
Accepted: Nov. 27, 2019
Published Online: Mar. 10, 2020
The Author Email: Li Xiaohua (lxh@seu.edu.cn)