A Study to Realize A Box-Shaped 3D Display: A Calibration Method to Align Lens Array and Display

We propose a handheld box-shaped 3D display as a communication tool for realizing natural human-object interactions in face-to-face communications. The display employs an integral photography technique for each surface. However, misalignment of the lens array and the LCD module occurs, and so adjustment is necessary. In this paper, we analyze the error factors caused by this misalignment and propose a convenient calibration method to minimize them. The method estimates the actual positions of each lens using one camera and several stripe pattern images. After brief manual alignment the method computes the calibration parameters. We verify the suitableness of the proposed method by applying the computed parameters into the image-rendering process.