P3D RE: JPG and destruction

[Jonathan Gross <jonathan.gross@xxxxxxxxxxxx>]

John Roberts wrote:

> 48.4: The Effect of JPEG Coding Scheme on the Perceived Quality of 3-D Images
>    J.-Y. Chen, Z. Liwei
>    Beijing Institute of Technology, Beijing, China
>    S.-Q. Ding
>    Nankai University, Tianjin, China
> 
>    The effect of JPEG coding scheme on the perceived quality of 3-D images
>    was investigated by using the CCIR subjective assessment method. Lossy
>    compression affected the quality of 3-D image pairs less than that of
>    2-D images of the same scene.

Yes, but did they control for images with no compression?  Otherwise,
what they may observe is the subjective robustness of stereoscopic
vision verses monoscopic vision.  Their conclusions may say more about
stereoscopic vision than JPEG coding.  I don't know this, but perhaps
people subjectively rate 3D images as higher quaility than the
equivalent 2D images.  I know I like stereographs.

Jon Gross


------------------------------