Just-Noticeable Difference of Image Contour Rendering for a Laser Projection Television

Feixia Wang; Junyi Wang; Xiaohua Li; Jian Wang; Haotian Liu; Yan Tu

doi:10.3788/AOS202040.0533001

Acta Optica Sinica, Volume. 40, Issue 5, 0533001(2020)

Just-Noticeable Difference of Image Contour Rendering for a Laser Projection Television

Feixia Wang, Junyi Wang, Xiaohua Li^*, Jian Wang, Haotian Liu, and Yan Tu

Joint International Research Laboratory of Information Display and Visualization, Ministry of Education,School of Electronic Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, China

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Figures & Tables(11)

Fig. 1. Schematic diagram of experimental interface

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Fig. 2. Test images of JND for CR. (a) Balloon; (b) carriage; (c) children; (d) plant; (e) globe; (f) parrot; (g) rabbit; (h) house; (i) toy block

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Fig. 3. Illustration of the staircase method of 1 up 2 down. The last 6 reversals indicated as stars were used for JND calculation

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Fig. 4. Box-plots of JND of contour rendering for nine pictures after excluding outliers. (a) One JND (original data); (b) One JND; (c) two JND; (d) three JND; (e) four JND

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Fig. 5. Schematic diagram of DLP XPR technology

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Fig. 6. Stripes with width of five pixel and spacing of five pixel. (a) Original image; (b) photo

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Fig. 7. Normalized luminance distribution of stripes with width of five pixel and spacing of five pixel

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Fig. 8. Simulation of the extension of a stripe with width of one pixel

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Table 1. Regression analysis for JND of contour rendering

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Table 1. Regression analysis for JND of contour rendering

Number of JND	Adjusted R-square	Variable	Coefficient	T-statistic	Sig.
1	0.337	Constant	-1.265	-1.383	0.209
1	0.337	COR	2.199	2.250	0.059
2	0.358	Constant	0.893	7.761	0.000
2	0.358	ASM	13.990	2.336	0.052
3	0.551	Constant	1.086	8.632	0.000
3	0.551	ASM	21.531	3.288	0.013
4	0.554	Constant	1.262	7.950	0.000
4	0.554	ASM	27.301	3.305	0.013

Table 2. JND values expressed by σ of contour rendering for LCD TV and laser projection TV
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Table 2. JND values expressed by σ of contour rendering for LCD TV and laser projection TV
Number of JND 1 2 3 4
LCD TV 0.50 0.80 1.14 1.47
Laser projection TV 0.81 1.11 1.42 1.68

Table 3. Differences and mean values of JND values expressed by σ of contour rendering for LCD TV and laser projection TV
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Table 3. Differences and mean values of JND values expressed by σ of contour rendering for LCD TV and laser projection TV
Number of JND 2JND-1JND 3JND-2JND 4JND-3JND Mean value
LCD TV 0.30 0.34 0.33 0.32
Laser projection TV 0.30 0.31 0.26 0.29

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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

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Paper Information

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)

DOI:10.3788/AOS202040.0533001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Regression analysis for JND of contour rendering

Table 1. Regression analysis for JND of contour rendering

Table 2. JND values expressed by σ of contour rendering for LCD TV and laser projection TV

Table 2. JND values expressed by σ of contour rendering for LCD TV and laser projection TV

Table 3. Differences and mean values of JND values expressed by σ of contour rendering for LCD TV and laser projection TV

Table 3. Differences and mean values of JND values expressed by σ of contour rendering for LCD TV and laser projection TV