Comparing four 360-degree cameras (left to right: GoPro MAX, Insta360 X3, Garmin VIRB 360 and Ricoh Theta S). A Samsung Galaxy S23 Ultra mobile phone captured sound and light levels.

Spatial audio from 360-degree cameras

I have been interested in 360-degree cameras for a long time. Earlier this year, we published a paper at SMC comparing the image formats of four different 360-degree cameras (GoPro MAX, Insta360 X3, Garmin VIRB 360, and Ricoh Theta S). Now, we have just presented a follow-up study comparing the spatial audio of the same devices. While three of them claim to have spatial audio support (GoPro, Insta360, Garmin), this is only partially true. Only the GoPro camera exports Ambisonics files. As the anglegram below shows, this actually enables detection of horizontal (sonic) motion. ...

November 15, 2024 · 2 min · 290 words · ARJ
Comparing four 360-degree cameras (left to right: GoPro MAX, Insta360 X3, Garmin VIRB 360 and Ricoh Theta S). A Samsung Galaxy S23 Ultra mobile phone captured sound and light levels.

Comparing 360-degree cameras

Over the years, I have used several different 360-degree video cameras. They all behave differently, which makes it difficult to work with files from different systems. For this year’s SMC conference, we decided to compare four cameras: GoPro MAX, Insta360 X3, Garmin VIRB 360 and Ricoh Theta S. As the table below shows, the features of the cameras vary quite a bit: Camera File type Projection Codec Colorspace Resolution FPS Bitrate (kb/s) GoPro MAX .360 Equi-Angular Cubemap H.265 yuvj420p 4096 x 2688 25 30,002 (x2) .LRV Dual-fisheye H.264 yuvj420p 1408 x 704 25 2,499 Insta360 X3 .INSV Fisheye (x2) H.264 yuvj420p 5760 x 2880 29.97 60,495 (x2) .LRV Dual-fisheye H.264 yuvj420p 1024 x 512 29.97 3,999 Garmin VIRB 360 .MP4 Equirectangular H.264 yuv420p 3840 x 2160 25 80,008 .LRV Equirectangular H.264 yuv420p 1280 x 720 25 5,026 Ricoh Theta S .MP4 Dual-fisheye H.264 yuvj420p 1920 x 1080 29.97 15,938 The biggest practical challenge, however, is that they all use different projections: ...

June 15, 2024 · 2 min · 346 words · ARJ