Saw these two new whitepapers on HDCVI 3.0, one written by SourceSecurity's Larry Anderson, the other by Dahua.
Remarkably similar. Fully compatible.
Saw these two new whitepapers on HDCVI 3.0, one written by SourceSecurity's Larry Anderson, the other by Dahua.
Remarkably similar. Fully compatible.
I definitely wrote the SoruceSecurity.com Technology Report about HDCVI 3.0 -- I have the cramped fingers to prove it! It was based on information provided by Dahua, but all the words were mine.
Surprised to see Dahua has "repurposed" it under their own brand (should I be flattered?). Of course it's not a big shock: We know that content is repurposed in all sorts of ways in the corporate world.
Technically, the copyright of this report/white paper belongs to SourceSecurity.com/Notting Hill Media, and when authorized companies repurpose the content, it should be attributed to us as the original author.
Perhaps we can think of it as the "branded" and "OEM'd" versions of the content...?
Larry -
Are you saying you were unaware that Dahua was publishing this as their own whitepaper?
I definitely wrote the SoruceSecurity.com Technology Report about HDCVI 3.0 ...all the words were mine.
I don't think you would have a hard time convincing anyone that they weren't Dahua's words.
On the other hand, it wasn't clear which one was derivative, since the "Dahua" branded one is less visually embellished and claims to be "Release 1.0", and is significantly different in structure (not in content) from the SS version.
Perhaps the "Release 1.0" is just boilerplate and nothing is really meant by it.
BTW, Dahua seems a bit looser than most when it comes to IP protection in general, and CVI attribution in particular, see The Real Inventor Of HD-CVI And HD-TVI?
We discussed with them the possibility that they might repurpose the content, but the understanding was that it would be attributed to us as the source. There doesn’t appear to be an attribution in this case (an oversight?).
Did you put signal on osciloscope/spectral measurement to get some idea how changeed HDCVI 2.0 to 3.0 ? Did spectrum expanded, which means troubles can be expected for longer distances? Brian noted here only technical links which exists relevant to understand technologies. It is realy crazy that everybody talks about picture quality but none analysis what is real influence of transmition technology used in all HD analogs... even this should be NTSC improved scheme. Well if you know about some accessible sources please direct us there, I realy found nothing. It is more than year I measured spectrum HDCVI 2.0 and I realy supposed that there will be after that toons of studies around it... and still nothing ?!
I see nothing to suggest that Larry actually had any hd-cvi 3.0 gear in hand, let alone an o-scope.
As for hd-cvi 2.0 studies, are you familiar with this document?
Well, I hope Larry will react on it, cause my first feeling was also that Larry wrotes it simply according marketing materials. However it is not about Larry, I realy want to have some info from expert skilled transmittion technology who will ignore market buzz and provide some real data.
Regarding HDCVI 2.0 - yes, mentioned document is only documents which apears as real description of technology HDCVI technology (and to be honest also as only description also about AHD and HD-TVI), even parameters described in them are slightly different to real product. I realy appreciate if somone point us into some real study.
In fact we all have tools to decompose basics and even make detailed parts of signal decomposition, but what we do not have is time which toons of students on universities has and they can even learn something...Realy nobody made it as some thesis or seminar work? None real analysis about AHD, TVI, CVI? ... realy only marketing bulshit?
NOTICE: This comment has been moved to its own discussion: Technical Information On HD-CVI 3.0
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