Nice pic, I believe it is a screen capture of a video.
One long-time Chinese aviation blogger did an analysis of the video and concluded that the J-20 demonstrates lift characteristics on par with the flanker, a medium-swept trapezoidal wing, at low AOA.
This is impressive as the advantage of the canard's lift characteristics usually appears after medium AOA, not at low AOA.
If so, it makes me wonder about the possibility of a carrier-borne J-20.
Anyone interested can check out the blog here.