Category Archives: Interlacing

Another example of lousy 576i deinterlacing

Posted on February 17, 2008 by Stephen Dawson

I’m reviewing a high definition digital TV receiver/PVR that, like most of them, doesn’t have the ability to output 576i over HDMI, nor to perform decent deinterlacing of it. To confirm my suspicions I took some photos. Having taken them, … Continue reading →

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Insane artistic choices

Posted on January 2, 2008 by Stephen Dawson

So far as I am aware, there is no convenient book that fully describes all the range of issues regarding picture quality that I, for one, need to know. So what I have learnt has resulted from a painful process … Continue reading →

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Can’t fix what’s too broke

Posted on December 30, 2007 by Stephen Dawson

A few days ago I installed a new true HD projector, the Mitsubishi HC6000, and had a look at some HD DVDs. Great stuff. That evening I flicked on the HDTV receiver and the station happened to be Southern Cross … Continue reading →

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Hitachi, ALIS, 1080p and 1080i

Posted on November 14, 2007 by Stephen Dawson

In the post immediately below this one, as explained in the update at the foot of the post, I talk about 1080i and 1080p issues which are not particularly relevant to the current fuss involving Smarthouse and Hitachi. It turns … Continue reading →

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Is 1080i true high definition?

Posted on November 12, 2007 by Stephen Dawson

Over at Smarthouse, David Richards seems to have set the cat loose amongst the pigeons over the issue of Hitachi advertising its TVs as ‘Full HD’. Richards argues that because these TVs accept only a 1080i signal, not a 1080p … Continue reading →

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Even more on deinterlacing

Posted on September 12, 2007 by Stephen Dawson

I undertook on the Beyonwiz forum to explore further the output characteristics of the Beyonwiz video section. I have held off doing this for a few days because what I wanted to do was compare its 576p and 1080i output … Continue reading →

Posted in DTV, DVD, How Things Work, Interlacing | 2 Comments

More on deinterlacing

Posted on September 8, 2007 by Stephen Dawson

Someone on the DTV Forums recently posted a snippet of an ABC test pattern that he’d captured from ABC 2 digital TV. It’s 38MB, but he also posted a shorter trimmed version coming to 8MB (link here). That snippet is … Continue reading →

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576i to the rescue

Posted on May 1, 2007 by Stephen Dawson

I mentioned below that ‘what we really need is a HD TV receiver that can either output 576i over a HDMI output (DVI outputs do a weird output when set to 576i, which isn’t compatible with all the displays I’ve … Continue reading →

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Proof of crappy video output from HDPVR

Posted on April 30, 2007 by Stephen Dawson

Below, my blog entry ‘We need a videophile’s High Definition Digital TV Receiver‘ puts the case that we are not getting all the picture we should be with standard definition digital TV, thanks to what I suspected was poor deinterlacing … Continue reading →

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DVD Forum denies that PAL DVDs must be flagged ‘interlaced’

Posted on August 20, 2006 by Stephen Dawson

I emailed the DVD Forum regarding the claim that it is a requirement of the DVD specification that PAL DVDs have their scan mode flagged as ‘interlaced’. However the DVD Forum denies that this is in fact a requirement. Here … Continue reading →

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