Dear Ryuji Narita,
My first idea would be to use the VA design below (VA design, download Acq_Test02_VCLx_BRudde_QuickFix.va ) :
This is only a quick guess, but it may be a solution.
From my point of view, two small FIFOs were missing in order to avoid a dead-lock condition.
These FIFOs have the name MiniBuffer_A/B.
Please tell me if this is a valid fix, because I could not find the time to investigate in runtime.
My recommendation would be to modify the processing behind the Blob Analysis in a serial way, on the basis of the mentioned operators in the previous post.