Evaluating the Mechanism by Which the TNO Stereo Test Overestimates Stereo Thresholds

Figure 3

Legend of the test picture I (80″). (a) Seeing by the left eye: A, composed of black dots (0, 0, 0) and white dots (255, 255, 255); B, composed of dark red dots (200, 0, 0) and light red dots (255, 50, 0); C, composed of red dots (230, 0, 0) and gray dots (60, 60, 60); D, composed of dark gray dots (125, 125, 125) and light gray dots (165, 165, 165). (b) Seeing by the right eye: A, composed of black dots (0, 0, 0) and white dots (255, 255, 255); B, composed of dark green dots (0, 20, 0) and light green dots (0, 95, 15); C, composed of green dots (0, 138, 0) and gray dots (60, 60, 60); D, composed of dark gray dots (15, 15, 15) and light gray dots (110, 110, 110). (c) The simulation of the perceptions generated by the test pictures (a) and (b). The missing section of the pie is left, down, right, and up in A, B, C, and D, respectively. The disparity of stereo targets is 80″. The color of B and C may appear reddish, greenish, or flashing depending on the reactions of different people. This simulation imitates a subject who felt the flashing of green light for figure B and C when fusing two images.

(a)

(b)

(c)