Commercial security camera systems
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This document compares traditional analog security camera recording to megapixel recording using 1MP and 5MP cameras. It notes that while analog camera live views may be clear, the recording quality is what matters most. Recordings from a 1MP camera provide about 4 times the resolution and clarity of analog, while a 5MP camera provides around 15 times the resolution, allowing much greater detail when zooming in compared to analog security camera recordings.
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Question 3
The audience feedback showed that:
1) Most people rated the trailer 8/10 or higher, showing they enjoyed it.
2) Everybody who watched the trailer liked it.
3) Viewers enjoyed the variety of shots used in the trailer.
4) They liked the music used in the trailer.
5) The title font chosen for the trailer was effective.
6) The image used to portray the horror film for ancillary products was effective.
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This document contains a series of questions about horror film preferences, including questions about horror movie genres, settings, the role of music and ratings, and effective elements of horror movie trailers such as inclusion of dialogue, key moments, and pace. Respondents are asked to provide yes or no answers to questions about whether trailers should include certain elements or not.
Question 2
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This presentation was originally written to accompany a lecture and demonstration so you may find some of this a bit "off". Power through it and see what you can take from it.
Best Practices To Improve Your Digital Photographs
This presentation was originally written to go along with a lecture and demo. Because of this aspect you may find some of the material a bit confusing.
Best Practices
My primer of best practices for hobbyists and advanced amateurs wishing to improve their photography skills.
Which has better zoom: 18x or 36x?
In the world of security cameras, 18x zoom can be equal to 36x. More specifically, a high-resolution security camera with 18x optical zoom can provide images that, for surveillance purposes, are just as, or even more useful than those delivered by a standard resolution, 4CIF camera with twice the zoom capability.
Which has better zoom?
While a 36x zoom camera has a higher zoom factor than an 18x zoom camera, the document explains that the level of detail provided can be similar between the two. This is because a high-resolution HDTV 720p camera with 18x zoom provides more pixels and a wider field of view than a lower-resolution 4CIF camera with 36x zoom. Specifically, in wide-angle mode the HDTV camera offers much more detail, and in full zoom mode the level of detail is almost identical between the cameras, but the HDTV camera maintains a wider viewing angle. Therefore, the pixel resolution of the camera is more important than the zoom factor alone in determining the quality of the image details.
The difference between image size and image resolution
Image size refers to the number of pixels in an image, while resolution refers to the number of pixels per inch (dpi or ppi) that determine image quality. Higher resolution means more pixels per inch and results in clearer, less pixelated images. The end use of the image determines the necessary resolution - low resolution is suitable for online use while high resolution is needed for printed materials.
DSLR Technology
A digital single-lens reflex (DSLR) camera uses an interchangeable lens and digital imaging sensor similar to a film SLR camera. Key features of DSLRs include a mode dial, dust reduction system, interchangeable lenses, HD video capture, and a live preview. Digital photos are made up of pixels, and a camera's megapixel rating determines the maximum photo resolution and largest high-quality print size possible, such as an 8 megapixel camera allowing for a 12" by 16" print. However, a higher megapixel camera does not necessarily produce better quality prints than a lower megapixel camera for the same print size.
2015 ipvm-ip-camera-fundamentals
This document discusses key concepts around video surveillance resolution:
1. Resolution traditionally referred to the ability to resolve details, but now usually refers to pixel count in surveillance cameras. Pixel count determines the potential quality, but other factors like low light performance also impact image quality.
2. Common resolutions for surveillance cameras include 1080p, 720p, 5MP, and 4K. Higher resolutions can capture more details but performance can vary depending on lighting conditions.
3. The sensor resolution may be higher than the maximum stream resolution available. Integrators also sometimes set cameras to stream at lower resolutions than maximum.
4. Compression greatly impacts resolution - high compression can significantly reduce bandwidth needs but also impact visible image quality
Task 1
The document discusses several topics related to digital images including resolution, pixels, vector and raster images, file formats, image capture, optimization, and storage/asset management. Resolution refers to the number of pixels per inch in an image, with higher resolution providing more detail. Pixels are the smallest controllable elements that make up an image. Vector images use mathematical descriptions while raster images use a pixel grid. Common file formats include JPG, TIF, GIF, PNG and RAW, each with advantages for different uses. Image capture involves lighting, organization and cleaning. Optimization improves image quality and preparation for delivery. Storage and asset management involves collecting, detailing and storing digital images and metadata at the highest resolution.
The technology of editing
This document discusses different film and digital formats used for video editing. It compares film sizes and resolutions to digital formats, with IMAX and 4K considered the highest quality currently. Digital uses pixels for resolution while film size is measured in mm. It also outlines differences between standard definition and high definition, as well as linear vs non-linear editing and using tapes versus hard drives for storage.
Task 1 photography
The document discusses various camera functions and settings including:
- Automatic and manual modes, with manual mode allowing independent control of aperture and shutter speed.
- Using manual mode is easier with digital cameras than film as settings can be seen immediately.
- Other topics covered include viewfinders, lenses, image sensors, memory storage, file formats like JPEG and RAW, aperture and f-stop settings, shutter speeds, and lighting.
Similar to Commercial security camera systems (20)
Best Practices To Improve Your Digital Photographs
Best Practices To Improve Your Digital Photographs
Best Practices To Improve Your Digital Photographs
Best Practices To Improve Your Digital Photographs
The difference between image size and image resolution
The difference between image size and image resolution
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Commercial security camera systems
- 1. Commercial Security Camera Systems
- 2. Traditional Digital Recording vs. Megapixel Recording (1MP and 5MP) The “live view” of an analog camera is usually much better than the recording. However, the recording is what really matters. For the sake of an honest comparison, we are only using the sample images from a recording standpoint. Analog Camera recorded at 720 X 480 resolution on a conventional Digital Recorder with high compression.
- 3. When zooming in on the video, it is apparent that there isn’t any improvement on the quality. What you see on the large image is what you get. If you cannot make out the detail on the large screen, you probably will not be able to gain anything by zooming in.
- 4. Zoomed-in on an Analog Camera image
- 5. A 1 Megapixel Camera gives much better clarity on the large image and provides the ability to gain additional detail when zoomed in. A 1 Megapixel camera resolution is 1280 X 720 which is approximately 2 times the height and 2 times the width of a traditional analog camera, 4 times the resolution! 400% Improvement
- 6. Zoomed-in on a 1 Megapixel Camera image
- 7. And a 5 Megapixel Camera provides even more clarity and detail. A 5 Megapixel camera resolution is 2592 X 1944 which is approximately 4 times the height and 4 times the width of a traditional analog camera, 15 times the resolution! 1,500% Improvement
- 8. This graphic shows the difference of the zoomed in image back to back.
- 9. Lighthouse Video Surveillance PO Box 58423 Houston, TX 77258 Phone: 281-744-5202 Fax: 501-634-3473 info@LighthouseVS.com Contact Info