Video transmission system

A video transmission system comprising:

• a video transmission device including a video-recording unit configured to record a situation in a first space;
• and
• a video output device including a display unit arranged in a second space, the video output device being connected to the video transmission device via a network, wherein
• the display unit is configured to display a video of the first space,
• the video transmission device includes circuitry configured to:
• determine an attention position where a viewer located in the second space is estimated to pay attention to the situation in the first space;
• divide a range included in a video recorded by the video-recording unit into multiple regions that include at least a first region and a second region, the first region including the attention position;
• set a first video quality for the first region and set a second video quality for the second region, the second video quality being lower than the first video quality;
• generate video data from recorded data of the video-recording unit in accordance with the first video quality and the second video quality;
• and
• transmit the video data to the video output device, and
• the video output device includes circuitry configured to control the display unit using the video data received from the video transmission device such that the display unit displays the video showing the situation in the first space.