jsmith
Well-Known Member
We invested an enormous amount of time discussing about the tuning concept and tuning the image quality.
I and a tuning engineer even made a business trip to the U.S. specifically to capture and tune footage using local vehicles — changing car models along the way — just to ensure the video quality met our expectations.
I believe the sunlight in Korea is different from that in the U.S. (Trust me 😉 )
It would be too harsh to say that we sacrificed everything for license plate visibility, because of course we also aimed to make the surrounding environment look beautiful.
However, it’s true that our top priority was optimizing license plate readability.
The reason is simple — we’ve seen too many cases where people rank two products solely based on license plate visibility.
And often, those judgments are made from just one or two still captures.
I personally think it’s quite irresponsible to judge a product’s overall quality based only on a couple of snapshots.
Yet from the viewer’s perspective, it’s difficult not to believe the result that appears clearer in those comparisons.
Because of this, many manufacturers inevitably focus their tuning direction toward maximizing license plate readability — even if it means sacrificing other strengths or features of the product.
Although results can vary greatly depending on lighting conditions and environment, people usually only compare captured images and decide the winner based on which one shows the plate more clearly.
When a camera receives more light, each pixel captures more light energy, resulting in more image data per pixel.
More data means better dynamic range and richer expression — in short, a more beautiful image.
However, to improve license plate readability, tuning must take the opposite approach — minimizing blur as much as possible.
We spent a great deal of effort finding the fine balance and achieving optimal performance between those two opposing goals.
Your choice was neither right nor wrong. If consumers demand a feature, you accommodate their request, or you risk not meeting your sales goals . Here, you chose to make plate readability a priority. It's a trade off, but one you researched heavily.
At some point down the road, affordable hardware will permit 24 hours worth of both plate readability and crisp scenery, without having to sacrifice one for the other.
Some people repeatedly suggest simply increasing the bitrate, but bitrate only becomes meaningful after sufficient light is captured.
I doubt whether the camera can actually gather enough light to fully utilize that high bitrate.
If there isn’t enough image data to transmit in the first place, a higher bitrate only raises costs without improving quality.
I'm always one to ask, but have you tried increasing the bitrate in lab testing, to see whether or not this theory is accurate?
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