Samsung UN55JS8500 4K UHD TV Review Part 3

01
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HQV Benchmark DVD Video Quality Test List - Samsung UN55JS8500

HQV Benchmark DVD Video Quality Evaluation Test List - Samsung UN55JS8500
HQV Benchmark DVD Video Quality Evaluation Test List - Samsung UN55JS8500. Photo © Robert Silva - Licensed to About.com

For part 3 (refer to parts 1 and 2) of my review of the Samsung UN55JS8500 4K SUHD TV, I conducted a series of video performance tests to see how well it can scale standard definition source content up to its 4K display resolution. Take a look at some of the test results.

The Samsung UN55JS8500 is a 55-inch Edge Lit LED/LCD TV that has a native pixel display resolution of 3840x2160 (2160p or 4K).

To test the video upscaling capability of the Samsung UN55JS8500 4K UHD TV, I used the standardized HQV DVD Benchmark Test Disc from originally from Silicon Optix, whose test categories are listed in the above photo. The patterns and images of these tests are designed to aid in determining how well a video processor in a Blu-ray Disc/DVD player, home theater receiver, or, in this case, a TV, can display an image on the screen when supplied a low resolution or poor quality video source signal. In this part of my review of the UN55JS8500, the TV is being "asked" to process and upscale a standard resolution DVD source (480i resolution) all the way to 4K for screen display.

In this Step-by-Step look, the results of several of the provided tests in the above list are shown. Also, on the last page of this photo presentation, the test results not shown in photos, are listed and commented on.

All of the listed above tests were conducted with using an Oppo DV-980H DVD Player connected directly to the Samsung UN55JS8500. The Oppo DV-980H DVD Player was set for NTSC 480i resolution and the tests were run with the DVD player connected alternately to the UN55JS8500 via composite, component, and HDMI. The test results reflect the video processing and upscaling performance of the UN55JS8500, which upscales the standard definition input signals to 4K for display. The test results are shown as measured by the Silicon Optix (IDT) HQV DVD Benchmark Disc.

Screenshots for the test illustrations were made with a Sony DSC-R1 Digital Still Camera. The photos used in the following examples were taken using the HDMI connection option, using the 480i output signal setting from the DVD player to the TV.

02
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Samsung UN55JS8500 - Video Performance - Jaggies 1 Test

Samsung UN55JS8500 SUHD TV - Video Performance - Jaggies Test 1
Samsung UN55JS8500 SUHD TV - Video Performance - Jaggies Test 1. Photo © Robert Silva - Licensed to About.com

Shown in the above photo is a look at the first of several video performance tests I conducted on the Samsung UN55JS8500.

This test is referred to as the Jaggies 1 test and consists of a rotating bar that moves within a circle divided into segments. To pass this test, the rotating bar needs to be straight, or show minimal wrinkling, waviness, or jaggedness, as it passes red, yellow, and green zones of the circle.

This photo shows two close-up views of the rotating line in two positions. The lines reveal some roughness along the edge at the + and - 10-degree point in the circle. However, although this is not a perfect result since the roughness is not excessive at this point in the rotation, it is considered to be passing.

This means that the Samsung UN55JS8500 is performing the deinterlacing portion of its video processing tasks adequately (although not optimally), thus passing this test.

For look at how this test should not look, check out an example of this same test as performed by the video processor built into an Epson PowerLite Home Cinema 705HD Video Projector from a previous review

03
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Samsung UN55JS8500 - Video Performance - Jaggies Test 2 - Example 1

Samsung UN55JS8500 - Video Performance - Jaggies Test 2 - Example 1
Samsung UN55JS8500 - Video Performance - Jaggies Test 2 - Example 1. Photo © Robert Silva - Licensed to About.com

In this test (referred to as the Jaggies 2 test), three bars are moving (bouncing) up and down in rapid motion. In order for the Samsung UN55JS8500 to pass this test, at least one of the bars needs to be straight. If two bars are straight that would be considered better, and if three bars were straight, the results would be considered excellent.

As you can see in this result, the top two bars look smooth, with slight roughness on the third bar. As seen in the above photo, this is definitely a passing result.

However, let's take a second, more close-up, look.

04
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Samsung UN55JS8500 - Video Performance - Jaggies 2 Test - Example 2

Samsung UN55JS8500 - Video Performance - Jaggies 2 Test - Example 2
Samsung UN55JS8500 - Video Performance - Jaggies 2 Test - Example 2. Photo © Robert Silva - Licensed to About.com

Here is the second look at the Jaggies 2 test. As you can see in this closer example, shot at a different point in the bounce, the top bar is smooth, with very slight waviness, the second bar exhibits a hint roughness along the edges, and the bottom bar shows slight roughness. However, since this is a close-up view, this is still definitely considered a passing result.

05
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Samsung UN55JS8500 SUHD TV - Video Performance - Flag Test - Example 1

Samsung UN55JS8500 SUHD TV - Video Performance - Flag Test - Example 1
Samsung UN55JS8500 SUHD TV - Video Performance - Flag Test - Example 1. Photo © Robert Silva - Licensed to About.com

For this test (referred to as the flag test), footage of a U.S. flag is used. The waving action, the color combination of white stars on a blue background, as well as red and white stripes, provides a good video processing challenge.

As the flag waves, if any of the internal edges between the stripes, or the external edges of the flag become jagged, it means that the 480i/480p conversion and upscaling would be considered poor or below average. However, as you can see here, the outer edges and interior stripes of the flag are smooth.

The Samsung UN55JS8500 pass this portion of the test.

By proceeding to the next in this gallery you will see the results with regards to the differing position of the flag as it waves.

06
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Samsung UN55JS8500 - Video Performance - Flag Test - Example 2

Samsung UN55JS8500 - Video Performance - Flag Test - Example 2
Samsung UN55JS8500 - Video Performance - Flag Test - Example 2. Photo © Robert Silva - Licensed to About.com

Here is a second look at the flag test. If the flag is jagged, the 480i/480p conversion (deinterlacing) and upscaling is considered below average. However, just as shown in the previous flag test example, the outer edges and interior stripes of the flag are smooth. Based on the two examples shown, the Samsung UN55JS8500 passes this test.

07
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Samsung UN55JS8500 SUHD TV - Video Performance - Race Car Test

Samsung UN55JS8500 - Video Performance - Race Car Test
Samsung UN55JS8500 - Video Performance - Race Car Test. Photo © Robert Silva - Licensed to About.com

Pictured on this page is one of the tests that shows how well the video processor of the Samsung UN55JS8500 is at detecting 3:2 source material. To pass this test, the SUHD TV is tasked to detect whether the source material is film based (24 frames per second) or video based (30 frames a second) and display the source material correctly on the screen, avoiding any unwanted artifacts.

In the case of the race car and grandstand shown above, if the UN55JS8500's video processing is not up to the task, the grandstand would display a moire pattern on the seats. However, if the video processing is good, the moire pattern will not be visible or only visible during the first five frames of the cut.

As shown in this photo, there is no moire pattern visible, which means the JS8500 definitely passes this test.

To see another example how this image should look, check out the result of this same test as performed by the video processor built into the Samsung UN55HU8550 4K UHD TV from a previous review used for comparison.

For​ a look at how this test should not look, check out an example of this same deinterlacing/upscaling test as performed by the video processor built into a Panasonic TC-P50GT30 Plasma TV, from 10-degree product review.

08
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Samsung UN55JS8500 - Video Performance - Title Overlay Test

Samsung UN55JS8500 - Video Performance - Title Overlay Test
Samsung UN55JS8500 - Video Performance - Title Overlay Test. Photo © Robert Silva - Licensed to About.com

Shown on this last page is a test that indicates well the Samsung UN55JS8500 handles video based elements overlaid on a film based element.

This situation commonly occurs when video titles (moving at 30 frames per second) are laid over film (which is moving at 24 frames per second). This can cause problems as the combination of both these elements can result in artifacts that make the titles look jagged or broken.

However, as shown in the photo on this page, the letters (video element) are smooth, even when combined with film element of the child jumping up and down (the blurriness is due to the camera's shutter). This means that the Samsung UN55JS8500 detects and displays very stable horizontal scrolling titles, thus, passing the test.

Also, although not shown in this profile, the UN55JS8500 also displayed the same smooth result with vertically scrolled titles.

Final Note

Here is a summary of the additional tests performed that are not shown in the previous photo examples:

Color Bars: PASS

Detail (resolution enhancement): PASS

Noise Reduction: PASS

Mosquito Noise (the "buzzing" that can appear around objects): PASS

Motion Adaptive Noise Reduction (noise and ghosting that can follow rapidly moving objects): PASS

Assorted Cadences:

2-2 PASS

2-2-2-4 PASS (HDMI - Some variation with Composite).

2-3-3-2 PASS (HDMI - Some variation with Composite).

3-2-3-2-2 PASS (HDMI - Some variation with Composite).

5-5 PASS (HDMI - Some variation with Composite).

6-4 PASS (HDMI - Some variation with Composite).

8-7 PASS (HDMI - Some variation with Composite).

3:2 (Progressive Scan) - PASS

Taking all of the test results into consideration, the Samsung UN55JS8500 does a very good job with video processing (deinterlacing, noise reduction, detail enhancement, cadence detection, motion) and 4K upscaling.

For additional perspective on the Samsung UN55JS8500 4K UHD TV, plus a close-up photo look at its features and connection offerings, check out my Review and Photo Profile.

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Disclosure: Review samples were provided by the manufacturer unless otherwise indicated. For more information, please see our Ethics Policy.