Vizio E55-C2 Smart LED/LCD TV - Video Performance

01
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Vizio E55-C2 LCD - Video Performance Test Results

Vizio E55-C2 Smart LED/LCD TV - HQV Benchmark DVD Test List
Vizio E55-C2 Smart LED/LCD TV - HQV Benchmark DVD Test List. Photo © Robert Silva - Licensed to About.com

The Vizio E55-C2 is a 55-inch LED/LCD that has a native pixel display resolution of 1920x1080 (1080p), as well as comprehensive Smart TV features. As a supplement to my review of the E55-C2, I take a look at how will this TV able to process and upscale standard resolution video source content.

In order to test the video performance of the Vizio E55-C2 LED/LCD TV, I used the standardized Silicon Optix (IDT/Qualcomm) HQV DVD Benchmark Disc. The disc has a series of patterns and images that ​tests if a video processor in a Blu-ray Disc/DVD player, home theater receiver or TV can display an image with minimal, or not artifacts, when faced with a low resolution or poor quality source.

In this Step-by-Step look, the results of several of the provided tests listed in the list above are shown (note that the list is shown on the screen of​ the E55-C2).

The tests were conducted with an Oppo DV-980H DVD Player connected directly to the E55-C2. The DVD player was set for NTSC 480i resolution and connected to the E55-C2 alternately via both composite and HDMI cables, so that test results reflected the video processing performance of the E55-C2, which upscales the standard definition input signals to 1080p for display.

All tests were conducted using the E55-C2's factory default settings.

Screenshots for the test illustrations were made with a Sony DSC-R1 Digital Still Camera.

After going through this profile, also check out my Review, and Photo Profile.

02
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Vizio E55-C2 Smart LED/LCD TV - Jaggies Test 1 - Example 1

Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 1 - Example 1
Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 1 - Example 1. Photo © Robert Silva - Licensed to About.com

The first video performance test conducted is referred to as the Jaggies 1 Test, which consists of a diagonal bar that moves in a 360-degree motion within a circle. In order for the E55-C2 to get a passing grade for this test, the rotating bar needs to be straight, or show minimal wrinkling or jaggedness, as it passes through the red, yellow, and green zones of the circle.

As the displayed result shows, the rotating line, as it moves from the yellow to​ the green zone, is smooth, with just a very slight hint of roughness along portions of the edge, and very slight curl on the ends, which means that the Vizio E55-C2 passes this test.

Note: Slight blurriness caused by the camera shutter, not the TV.

03
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Vizio E55-C2 Smart LED/LCD TV - Jaggies Test 1 - Example 2

Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 1 - Example 2
Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 1 - Example 2. Photo © Robert Silva - Licensed to About.com

Here is a second look at the Jaggies 1 rotating bar test, with the bar in a different position. Just as in the first example, the rotating line exhibits just a slight bit of roughness along the edges, but no jaggedness or waviness. The Vizio E55-C2 passes this portion of the test.

04
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Vizio E55-C2 Smart LED/LCD TV - Jaggies Test 1 - Example 3

Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 1 - Example 3
Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 1 - Example 3. Photo © Robert Silva - Licensed to About.com

To conclude our look at the Jaggies 1 rotating bar test results for the Vizio E55-C2, is a look at a close-up view of the rotating bar. As you can see above, the motion of the bar shows only a slight hint of roughness along the edges and a very slight bend, or curl, on the end (blurriness caused by camera shutter).

Taking the results of all three images into consideration, the Vizio E55-C2 definitely passes the Jaggies 1 rotating bar test.

05
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Vizio E55-C2 Smart LED/LCD TV - Jaggies Test 2 - Example 1

Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 2 - Example 1
Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 2 - Example 1. Photo © Robert Silva - Licensed to About.com

In the test shown above (known as the Jaggies 2 Test), three bars are bouncing and down in rapid motion. In order to pass this test, at least one of the lines needs to be straight. If two lines are straight that would be considered better, and if three lines were straight, the results would be considered excellent.

As you can see, the top two bars are smooth and the bottom bar is only slightly rough. This means that the Vizio E55-C2 passes this test. The E55-C2 is doing well with the tests up to this point, but let's take a closer look.

06
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Vizio E55-C2 Smart LED/LCD TV - Jaggies Test 2 - Example 2

Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 2 - Example 2
Vizio E55-C2 Smart LED/LCD TV - Photo - Jaggies Test 2 - Example 2. Photo © Robert Silva - Licensed to About.com

Here is a close-up view of the Jaggies 2 Test illustrated on the previous page with the bouncing bars in a slightly different position.

Due to the closer view, you can see that all three bars do, in fact, display some roughness along the edges, with the top bar being least rough and the bottom bar being most rough - with some added waviness.

However, although this is not a perfect result, none of ​the bars is actually jagged, which would be failing result, but as shown here, the Vizio still gets a passing grade on the Jaggies 2 test.

For a look at what a failing Jaggies 2 test result looks like, refer to a test result on a video projector I conducted.

However, there are more difficult tests ahead.

07
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Vizio E55-C2 Smart LED/LCD TV - Flag Test - Example 1

Vizio E55-C2 Smart LED/LCD TV - Flag Test - Example 1
Vizio E55-C2 Smart LED/LCD TV - Flag Test - Example 1. Photo © Robert Silva - Licensed to About.com

Although passing the rotating and bouncing bars tests reveals one aspect of the Vizio E55-C2's video performance, a more difficult challenge for a video processor is how it can handle a combination of horizontal, vertical, and diagonal motion. A really good test subject is a waving U.S. flag.

If the flag is jagged, the 480i/480p conversion and upscaling is considered below average. As you can see here (even when you click for the larger view), the interior stripes of the flag appear are very ​smooth along the edges of the flag and within the stripes of the flag. The Vizio E55-C2 passes this test.

By proceeding to the next two photo examples, you will see the results with regards to the differing position of the flag as it waves.

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Vizio E55-C2 Smart LED/LCD TV - Flag Test - Example 2

Vizio E55-C2 Smart LED/LCD TV - Photo - Flag Test - Example 2
Vizio E55-C2 Smart LED/LCD TV - Photo - Flag Test - Example 2. Photo © Robert Silva - Licensed to About.com

Here is a second look at the waving flag test, showing the flag in a different position. As you can see here, the interior stripes of the flag appear are still smooth along the edges of the flag and within the stripes of the flag. The Vizio E55-C2 is still passing this test.

By proceeding to the next photo, you will see a third results example.

09
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Vizio E55-C2 Smart LED/LCD TV - Flag Test - Example 3

Vizio E55-C2 Smart LED/LCD TV - Photo - Flag Test - Example 3
Vizio E55-C2 Smart LED/LCD TV - Photo - Flag Test - Example 3. Photo © Robert Silva - Licensed to About.com

Here is a third, and final, look at the flag test. Here the stripes are still fairly smooth, but there is some slight edge roughness where the flag is extensively wrinkled. However, it is not excessive and, in real motion, is very difficult to notice.

Combining the three result examples of the flag waving test, it appears that the video processing ability of the Vizio E55-C2 is very good so far.

10
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Vizio E55-C2 Smart LED/LCD TV - Race Car Test - Example 1

Vizio E55-C2 Smart LED/LCD TV - Photo - Race Car Test - Example 1
Vizio E55-C2 Smart LED/LCD TV - Photo - Race Car Test - Example 1. Photo © Robert Silva - Licensed to About.com

Pictured on this page is one of the tests that shows how good the video processor of the Vizio E55-C2 is at detecting 3:2 source material. Here, the TV has to be able 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, so as to avoid artifacts.

With the race car and grandstand shown in this photo, if the TV's video processor is poor the grandstand would display a moire pattern on the seats. However, if the Vizio E55-C2 has good video processing, 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 at this point in the cut. This is definitely a good result for this test.

For another example of how this image should look, check out an example of this same test as performed by the video processor built into the Samsung UN55H6350 Smart LED/LCD TV from a previous review used for comparison.

For a sample of 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 Toshiba 46UX600U LCD , from a past product review.

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Vizio E55-C2 Smart LED/LCD TV - Race Car Test - Example 2

Vizio E55-C2 Smart LED/LCD TV - Photo - Race Car Test - Example 2
Vizio E55-C2 Smart LED/LCD TV - Photo - Race Car Test - Example 2. Photo © Robert Silva - Licensed to About.com

Here is a second photo of the "Race Car Test" as explained on the previous page.

In this second example of the "race car test", just as in the first example, there is no moire pattern as the image pans as the race car goes by.

When comparing this photo example with the previous example, the Vizio E55-C2 definitely passes this test.

NOTE: Any blurring in the image is the result of the camera, not the TV.

For another sample of how this image should look, check out an example of this same test as performed by the Samsung UN55H6350 Plasma TV from a previous review used for comparison.

For a sample of 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 Toshiba 46UX600U LCD , from a past product review.

12
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Vizio E55-C2 Smart LED/LCD TV - Titles Test

Vizio E55-C2 Smart LED/LCD TV - Photo - Titles Test
Vizio E55-C2 Smart LED/LCD TV - Photo - Titles Test. Photo © Robert Silva - Licensed to About.com

Even though the E55-C2 is able to detect the difference between video and film-based sources, such as shown in the previous race car test photo, in order to provide good video performance, it must be able to detect both at the same time. The reason this capability is desired is that often video titles (moving at 30 frames per second) are laid over​ film (which is moving at 24 frames per second). The combination of both these elements can often times result in artifacts that make the titles look jagged or broken. However, if the Vizio E55-C2 can detect the differences between the titles and the rest of the image, the titles should appear smooth.

As shown in this results example, the letters are smooth (the blurriness is due to the camera's shutter) and shows that the Vizio E55-C2 detects and shows a very stable scrolling title image.

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Vizio E55-C2 Smart LED/LCD TV - HD Loss Test

Vizio E55-C2 Smart LED/LCD TV - Photo - HD Loss Test
Vizio E55-C2 Smart LED/LCD TV - Photo - HD Loss Test. Photo © Robert Silva - Licensed to About.com

Here is a test that also provides information the video performance of the Vizio E55-C2 as it relates to the high-definition source material.

For this test, the source component used was the OPPO BDP-103 Blu-ray Disc player, and connected to the E55-C2 using an HDMI connection.

The image coming from the BDP-103 was mastered in 1080i and placed on a Blu-ray Disc test disc. The BDP-103 was then for 1080i output so that the originally recorded 1080i image is passed to the E55-C2.

In order to pass this test, the E55-C2 needs to convert the 1080i signal that is on the disc and display it on the screen as a 1080p image.

However, E55-C2 also has to distinguish between the still (squares) and moving (rotating bar) parts of the image. If the TV's processor works as intended, the rotating bar will be smooth and all of the lines in the still part of the image will be visible.

As an added factor, the squares on each corner contain white lines on odd frames and black lines on even frames. If the blocks continuously show still lines, the E55-C2 is doing a complete job at reproducing all of the resolution of the original image. However, if the square blocks are seen to vibrate or strobe alternately in black (see example) and white (see example), then the TV's video processor is not processing the full resolution of the entire image.

As you can see in this frame, the squares in the corners are displaying still lines. This means that these squares are being displayed properly as they are not showing a solid white or black square, but a square filled with alternating lines. In addition, the rotating bar appears smooth due to the size of this photo.

This result indicates that the E55-C2 does well with 1080i to 1080p conversion of both still and moving images.

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Vizio E55-C2 Smart LED/LCD TV - HD Loss Test - Close-up and Final Take

Vizio E55-C2 Smart LED/LCD TV - Photo - HD Loss Test - Close-up
Vizio E55-C2 Smart LED/LCD TV - Photo - HD Loss Test - Close-up. Photo © Robert Silva - Licensed to About.com

Here is a close-up look at the rotating bar portion of the test shown on the previous page. The image has been recorded in 1080i, which the Vizio E55-C2 needs to reprocess as 1080p. If the processor is performing well, the moving bar will be smooth or show minimal roughness along the edge.

However, as seen in this close-up photo of the rotating bar, which appeared smooth in the previous photo, is still smooth in this added close-up view (the blurriness is caused by the camera shutter - not the TV). The E55-C2 does the 1080i to 1080p conversion well with both still image and moving objects in the image present at the same time.

Final Note

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

It must be pointed out that the tests were conducted with factory default settings.

Color Bars: PASS

Detail (resolution enhancement): PASS

Noise Reduction: FAIL (Also refer to comments below for further clarification)

Mosquito Noise (the "buzzing" that can appear around objects): FAIL (refer to comments below for more details)

Motion Adaptive Noise Reduction (noise and ghosting that can follow rapidly moving objects): FAIL (refer to comments below for more  details)

Assorted Cadences:

2-2 PASS

2-2-2-4 PASS

2-3-3-2 PASS

3-2-3-2-2 PASS

5-5 PASS

6-4 PASS

8-7 PASS

3:2 (Progressive Scan) - PASS

The E55-C2 does provide user settings that can change the above results somewhat in terms of detail and noise reduction. In other words, the FAIL grades on the Noise Reduction Categories test results can be changed to a Pass grade using the noise reduction setting options provided on the E55-C2. However, when decreasing the amount of video noise, you also decrease the amount of detail in the displayed image, resulting in a FAIL grade for the Detail category.

On ​the other hand, looking back at the entirety of the test results, the Vizio E55-C2 does a good job on many aspects of processing and scaling standard definition video for display on its 55-inch 1080p screen, such as minimizing motion and edge artifacts and detecting various film/video cadences correctly.

For additional perspective on the vizio E55-C2, plus a close-up photo look at its features and connection offerings, check out my Review and Photo Profile.