# Eye Tracking and Semantic Evaluation for Ceramic Teapot Product Modeling
## 3 Methodology
### Experiment 1: Eye-Movement Experiment on Attention to Ceramic Teapot Morphological Regions
#### 3.1.2 Experiment One Equipment  
The experiment adopted the advanced Tobii Pro Fusion 250 Hz eye tracker, whose high sampling frequency of 250 HZ ensures the accuracy of data, this equipment manufacturer is from Beijing Jinfa Co., Ltd. (Beijing, China). ErgoLAB was used for experimental and data analysis to facilitate efficient research, the software is from Beijing Jinfa Co., Ltd. (Beijing, China). The subject and the experimenter were separated by isolation to ensure the independence of the experiment. The subject was about 60 cm away from the screen and needed to keep their body still during the experiment. A 60.96-centimeter 1920 \(\times\) 1080 pixel computer screen was used to present the test material.  
The experimental environment was quiet. The noise in the space of 10 square meters was less than 40 decibels, the temperature was constant at 20 \({}^{\circ}\)C, and the light was stable so that the subjects were comfortable. In lighting, natural and artificial light sources were combined to diffuse artificial light to avoid screen shadow reflection. The room was soundproofed and free from debris to minimize interference and ensure that the experimental data were real and reliable.  
This study collected abundant ceramic teapot materials, focusing on the representative exhibits of the Forbidden City Museum and Longquan celadon, and combined them with the highly popular cultural and creative ceramic bottle products on the e-commerce market. The experts systematically sorted out these materials and finally selected eight representative samples as experimental materials, which integrated the long Chinese ceramic cultural tradition with modern design elements. In terms of shape design, they combine the classic stylistic features of traditional ceramic teapots with modern minimalist line-design concepts; in terms of decoration, there are traditional textures but also modern, more uniform, and simple colors.  
In order to ensure the scientific reliability of the experiment, the main view of these teapots was selected as the sample pictures. In order to avoid the interference of the background with the experimental results, Photoshop was used to process the pictures, remove the background, and uniformly process them into the same grayscale in order to ensure that the product material, color, and other conditions would not affect the experimental results. See Table 1.  
\begin{table}
\begin{tabular}{c c c c} \hline
**Brochure** & **1** & **2** & **3** & **4** \\ Main view & & & & \\ \hline
**Brochure** & **5** & **6** & **7** & **8** \\ Main view & & & & \\ \end{tabular}
\end{table}
Table 1: Experimental samples.  
In this study, the teapot parts were divided into 5 areas of interest (cover, spout, belly, handle, and bottom) to collect eye-movement data, as shown in Figure 3. Then, the importance of gaze order was ranked according to the value of eye movement. The regions with the lowest attention were removed, and the top four interest regions were selected as the key parts of the in-depth exploration in the follow-up experiment.