Axis ANVE Exam - Topic 1 Question 105 Discussion

Actual exam question for Axis's ANVE exam

Question #: 105
Topic #: 1

[All ANVE Questions]

If the subject is 3 m (10 ft) away, what is the pixel density for a 1920x1080 camera?

A324 px/m (108 px/ft)

B162 px/m (54 px/ft)

CThe information is insufficient

D576 px/m (192 px/ft)

Show Suggested Answer

Suggested Answer: C

The reason why the camera is not blinded by the headlights is that an IR-pass filter is in use. This filter blocks out visible light, including the bright headlights, and allows only infrared light to pass through. This is particularly useful in nighttime surveillance scenarios where the camera can rely on infrared illumination instead of visible light, ensuring clear visibility even in the presence of bright lights like headlights.

by Sheridan at Jan 11, 2025, 10:33 PM

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Hayley

6 months ago

162 px/m seems too low for a 1080p camera.

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Earleen

6 months ago

Definitely not 576 px/m, that's way too high!

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Hermila

6 months ago

Wait, how do we even know the pixel density without more info?

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Deonna

7 months ago

I thought it would be higher, but yeah, that sounds right.

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Lorrie

7 months ago

It's 324 px/m at that distance!

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Noemi

7 months ago

I think the answer is A, 324 px/m. I remember that higher resolutions give more pixels per meter, but I could be mixing it up.

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Beckie

7 months ago

I feel like we might need more information about the camera's specifications to get the right answer.

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Noelia

8 months ago

This reminds me of a practice question where we had to find pixel density too. I think it was around 162 px/m, but I can't recall the exact details.

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Misty

8 months ago

I remember something about calculating pixel density based on distance, but I'm not sure how to apply it here.

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Rebeca

8 months ago

I've got an idea on how to solve this, but I want to double-check my work before answering.

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Carrol

8 months ago

The information given seems a bit limited, but I'll do my best to come up with a solution.

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Alecia

8 months ago

Okay, I think I know the formula to use here. Let me work through this carefully.

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Kendra

8 months ago

Hmm, I'm not sure how to approach this. I'll need to think it through step-by-step.

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Twanna

8 months ago

This looks like a straightforward calculation, I should be able to figure this out.

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Tamar

1 year ago

This question is a real pixel-ache, isn't it? I'm just glad they didn't ask about the megapixel count of a potato.

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Madelyn

11 months ago

I'm not sure, but I think the answer might be B) 162 px/m (54 px/ft).

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Madelyn

11 months ago

I agree, the pixel density can be tricky. I would go with D) 576 px/m (192 px/ft).

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Madelyn

1 year ago

It sure is a pixel-ache! I think the answer is A) 324 px/m (108 px/ft).

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My

1 year ago

Okay, let's see... 1920x1080 pixels, 3 meters away. That means the pixel density is gonna be pretty high. I'm gonna go with D, 576 px/m (192 px/ft).

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Tiara

1 year ago

Shalon: Maybe we should double-check the calculations before making a final decision

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Shalon

1 year ago

User 2: I'm not so sure, but I think it's C) The information is insufficient

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Bettina

1 year ago

User 1: Are you sure about that? I think it might be option A) 324 px/m (108 px/ft)

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Jaime

1 year ago

I bet the answer is C. I mean, who has time to do all these calculations when you're taking a test, right? Let's just go with the lazy option.

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Elke

12 months ago

C) The information is insufficient

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Charlesetta

1 year ago

B) 162 px/m (54 px/ft)

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Becky

1 year ago

A) 324 px/m (108 px/ft)

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Melita

1 year ago

Hmm, the question doesn't mention anything about sensor size or focal length. How are we supposed to figure this out?

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Stefania

12 months ago

Yeah, without sensor size or focal length, we can't calculate it accurately.

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Maricela

1 year ago

C) The information is insufficient

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Lai

1 year ago

I think it's A) 324 px/m (108 px/ft)

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Delpha

1 year ago

A) 324 px/m (108 px/ft)

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Santos

1 year ago

Wait, are we supposed to calculate the pixel density or the resolution? I'm so confused!

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Thad

1 year ago

But how can you be so sure? The information might be insufficient.

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Oretha

1 year ago

I disagree, I believe it's D) 576 px/m (192 px/ft)

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Thad

1 year ago

I think the answer is A) 324 px/m (108 px/ft)

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