在本研究中，我们调查了在视频会议中操纵照明环境是否会改变面部表情的可读性。在实验中，参与者被要求评估他们对模拟视频会议中情况的视频的印象。共使用了12种照明条件，包括三种色温条件和四种照明方向条件。因子分析结果确定了四个因素:“清晰度”、“活力”、“自然性”和“健康性”方差分析结果表明，将照明置于前面对所有因素都有效。在所有因素中，研究表明，正面照明对参与者来说是有效的。此外，虽然较低的色温降低了清晰度，但它提高了自然度和健康度，并且当照明放置在受试者面前时特别有效。

In this study, we investigated whether manipulating the lighting environment in videoconferencing changes the readability of facial expressions. In the experiment, the participants were asked to evaluate their impressions of a video that simulated the situation in a videoconference. A total of 12 lighting conditions were used, including three colour temperature conditions and four lighting directions conditions. As a result of the factor analysis, four factors were identified: "Clarity," "Dynamism," "Naturalness," and "Healthiness." The results of ANOVA showed that placing the lighting in front was effective for all factors. And in all of the factors, it showed that lighting from the front was effective for the participants. In addition, while lower colour temperature decreased clarity, it improved naturalness and healthiness and was particularly effective when the lighting was placed in front of the subject.