Fig. 1. Setup of THSI.

Fig. 2. (a) Raster scan refresh mechanism of the LCD. The direction of the blue solid line and the black dashed line represents the loading order of the speckle pattern information. (b) The display process of the letter “X” with 5 × 5 pixels on the LCD over time.

Fig. 3. Schematic diagram of MSG-HSI. (a) The flow chart of speckle pattern repeating. The four sub-light fields are marked with four colors (red, green, blue, and yellow). (b) The light intensity fluctuation detected by the BD during the projection of one speckle pattern. (c) The difference result of (b).

Fig. 4. (a) The binary image “ghost-I.” (b)–(d) The reconstruction results based on Scheme I, MSG-HSI, and THSI, respectively.

Fig. 5. Experimental results for (a1)–(a4) binary image “concentric ring,” binary image “ghost-I,” Chinese character “学,” and grayscale image “ghost-II,” respectively. (b)–(d) The reconstruction results based on Scheme I, MSG-HSI, and THSI, respectively.

Fig. 6. The flow chart of the image stitching. (a) Different imaging areas in the array spatial light field. (b1), (b2) Imaging results corresponding to (a1) and (a2), respectively. (c)–(f) Image stitching results.