Necker S1 with anti-glare FDR ( Fuzzy Dynamic Range ) DVR

niko

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Taiwan Necker S1 has applied very interesting technology called FDR.



New Technology FDR (Fuzzy Dynamic Range) is comparable in some way with WDR (Wide Dynamic Range), but there are few small differences.

FDR technology provides a high-quality image while driving against the sun, toward the blinding light of headlights, at the exit of the tunnel, etc. Image Resolution 1920x1080, frame rate of 30 frames per second - all to preserve the clarity and natural colour reproduction, regardless of the intensity of illumination, weather conditions and vehicle speed.

For more information on FDR:

FDR (Fuzzy Dynamic Range) - the newest technology that is implemented with the help of exclusive software and signal conversion chip for video processing - "tone mapping".
Hidden Text
What is Fuzzy Dynamic Range?
Fuzzy Dynamic Range (FDR) also called High Dynamic Range (HDR), to understand FDR (HDR), we need to understand “Dynamic Range” at first.
“Dynamic Range” means the ratio of the maximum value compared to the minimum value. For example, a device can output from 50mV to 50V. The dynamic range will be 50V/50mV = 10,000 = 80dB. So, 10,000 = 80dB,100,000 = 100dB,1,000,000=120dB. If expressed in “bits”, 80dB is around 13~14 bits.
“Fuzzy Dynamic Range” means the dynamic range is bigger wider to express the value. We can tell the details of both dark and bright areas in the same picture. For normal image sensor, the dynamic range is around 80dB, can be expressed by 14 bits. So, we can find this kind of sensor output uses 14 data pins. In order to reach human eye (100dB) dynamic range, we will need 17 bits. To reach 120dB, we need 20 bits.
Human eye’s sensitivity to light is around 100dB. The sun light (Day Time) compared to moon light (Night Time) is about 90dB. In fact, human eye can’t see both the details in sun light and moon light at the same time. We need some time to adjust when focus is moved from bright area to dark area. It is the same for image sensor. It can get pictures with detailed bright area. It can also take pictures with detailed dark area. But it is not possible to take pictures with both satisfied.So, how can we implement FDR? There are four methods:1. Use normal image sensor. When taking picture, don’t get over-exposure as possible as we can. After that, in image processing software, adjust the dark area to be brighter. It the same effect to adjust the S-curve in Photoshop. If we check the detail carefully, we can find the image details are missing. This method is also called “gamma-FDR” because it is the equal to adjust the gamma curve as we can done in general image signal processor (ISP).2. Use normal image sensor to take 2~4 pictures using different shutter speed from slow to fast. The slow shutter can keep details in dark areas. The fast shutter can keep details in bright area. The, merge the 2~4 pictures to get a new picture which will keep details in both dark and bright areas. It sounds good, but very difficult to implement due to the time difference between pictures and the required high speed (x2~x4) to capture image and merge images. It is very challenge to the performance of image sensor and ISP.3. Use FDR image sensor directly. The kind of sensor will implement the operations as described in method 2 and output image data in 100~120dB which will need 20 bits data pin. The issue is normal ISP can only handle 14 bits. So, we need a special chip to map 20 bits to 14 bits. This is called “tone mapping”.4. Same as method 3, but implement “tone mapping” directly in image sensor and output 14 bits image data. This method is the best solution for system designer, but it is the most difficult way to design image sensor.Necker Series uses method 3, it is true FDR with dynamic range up to 100~120dB.

Necker S1 specs

Production: Taiwan
LCD display: 2.4 "TURNING with effect on and off the screen via the menu
Panic: button to save the video to your desired time
The Matrix FDR image sensor (331)
G-sensor: an impact (collision) automatically saves videos with off
Video recording format: H264 @ MOV file
Angle: 120°
Lens: 5 Mega pixels
Output: AV / USB 2.0
Audio: microphone with mute / built-in speaker
Video resolution: 30fps 1920 * 1080/1280 * 720 pixels 60fps
Memory Card Slot: Micro SD (from 8 GB to 32 GB) is not below the sixth grade
TV output: NTSC / PAL
Language support: Russian / English / Chinese / Japanese /
Power supply: USB / Car Adapter
Dimensions: 78 mm. x 60 mm. x 38.5 mm.
Weight: 78 gr.
Options: USB-cable, mount, power cable into the cigarette lighter engine, manual, software CD.

Source:
http://necker-russia.com/

http://item.taobao.com/item.htm?spm=a23 ... 2496428508

Full review:
http://www.auto-dvrs.ru/reviews/47-necker-s1-review
http://am.u-car.com.tw/17929.html

Price 170.39usd, PayPal.

EMS shipping:
U.S./Canada US$10
Europe and Others US$20

http://global.pchome.com.tw/english/?mo ... NO=41&tm=e
 

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Re: Necker S1 with anti-glare FDR ( Fuzzy Dynamic Range ) DV

Saw a sample of this last month, it may have been improved since but it had this noticeable issue with the image going slightly in and out of focus constantly, I'm not sure if that was a side effect of the image processing but it was obvious, night result was quite dynamic
 
Re: Necker S1 with anti-glare FDR ( Fuzzy Dynamic Range ) DV

jokiin said:
Saw a sample of this last month, it may have been improved since but it had this noticeable issue with the image going slightly in and out of focus constantly, I'm not sure if that was a side effect of the image processing but it was obvious, night result was quite dynamic

I was following some russian forums for the past month where some buyers of Necker S1 admitting same problems you mentioned, but Necker is dealing with it. It is common with all new products to have some bugs at the beginning. Anyway, I will keep eye on S1 updates progress, because FDR seems to be an interesting feature.
 
Re: Necker S1 with anti-glare FDR ( Fuzzy Dynamic Range ) DV

niko said:
jokiin said:
Saw a sample of this last month, it may have been improved since but it had this noticeable issue with the image going slightly in and out of focus constantly, I'm not sure if that was a side effect of the image processing but it was obvious, night result was quite dynamic

I was following some russian forums for the past month where some buyers of Necker S1 admitting same problems you mentioned, but Necker is dealing with it. It is common with all new products to have some bugs at the beginning. Anyway, I will keep eye on S1 updates progress, because FDR seems to be an interesting feature.

yeah I'm not sure what's involved with the mod they have done, hopefully it could be improved as it showed good potential
 
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