Information technology. Any equipment or interconnected system or subsystem of equipment, that is used in the automatic acquisition, storage, manipulation, management, movement, control, display, switching, interchange, transmission, or reception of data or information. The term 'information technology' includes computers, ancillary equipment, software, firmware and similar procedures, services (including support services), and related resources.

Optical zoom is usually preferred in applications where image quality is imperative and detailed visualization is essential. This includes professional surveillance systems requiring precise identification, and industrial inspections where capturing fine details is crucial for analysis and decision-making. Optical zoom is also a better choice for applications that require reliable performance in low light or changing light conditions.

Opticalzoomcamera

Our Harrier autofocus-zoom cameras all incorporate a lens system for optical zoom and image processing for digital zoom, allowing users to adjust magnification both optically and digitally.

Optical zoom offers greater resolution than digital zoom but is limited by the quality of the physical optics of the camera lens. Digital zoom enlarges an image using digital processing but generally results in a lower image quality.

Digitalzoomapp

Since it merely enlarges the image using the existing pixels, without capturing additional detail, digital zoom is best suited for situations where high-resolution images are not essential, where immediate magnification is required but precise detail may not be critical.

Cost and complexity: Optical zoom lenses often cost more than their fixed counterparts, because they include moveable optics and a motorized system to allow control of the optical zoom.

The choice between using digital zoom or optical zoom ultimately depends on the specific requirements of the application.

While both digital zoom and optical zoom serve the purpose of magnifying images, they differ significantly in terms of image quality and application suitability.

Our most powerful model, the Harrier 55x AF-Zoom Camera, is slightly different because it uses a higher resolution sensor, so the initial digital zoom is merely reducing the downscaling to the point where the zoomed image can be directly cropped out of the higher resolution image.

Optical zoom is particularly beneficial in scenarios where image quality is paramount, such as surveillance applications, requiring detailed identification, and industrial inspection, where precision is critical to guarantee quality. By preserving the integrity of the image, optical zoom ensures that users can accurately capture finer details even at a high distance.

Electronic and information technology includes computer hardware and software, operating systems, web-based information and applications, telephones and other telecommunications products, video equipment and multimedia products, information kiosks, and office products such as photocopiers and fax machines.

Digital zoom is well-suited for situations where immediate magnification is necessary, and image quality can be sacrificed to some extent. These include video conferencing, and real-time monitoring systems such as patient monitoring, where reactive zoom capabilities are valued over image clarity. Zooming in on a specific region of the field of view will result in pixelation, particularly if there is a significant amount of digital magnification.

While this may also be an issue with optical zoom, with digital zoom a bad image (with low detail due to low light) is just being made bigger so it looks worse, even though no additional noise is added. With optical zoom the camera can compensate to some extent by adjusting iris and shutter speed settings to capture more detail.

There has been a surge in demand for high-quality imaging solutions across many industries, from medical applications to UAVs, and everything in between. For most of these solutions, flexible and responsive zoom options are often critical.

Which is better opticalzoomor digitalzoom

The federal agency charged with establishing this definition was the Architectural and Transportation Barriers Compliance Board (Access Board). Here is the formal definition of both "electronic and information technology" and "information technology" published in the Access Board's Electronic and Information Technology Accessibility Standards:

Unlike optical zoom, which adjusts the lens physically to magnify the image, digital zoom works by digitally enlarging and cropping a portion of the image. Essentially, it increases the magnification of the image by interpolation (estimating a new pixel’s intensity based on neighboring pixel values). This estimation results in lower image quality and less detail than with optical zoom.

Size and weight: due to the requirement to motorize the position of certain lens elements, optical zoom lenses are typically larger and heavier than the fixed lenses used with digital zoom. Therefore, optical zoom lenses may be less suited to embedded applications which require compact, lightweight hardware.

Electronic zoomapp

Optical zoom functions by adjusting the physical focal length of the lens, thereby magnifying the image without sacrificing quality. To zoom in, the lens moves, narrowing the field of view and magnifying the scene. Optical zoom captures more detail by actually bringing the subject closer optically, unlike digital zoom, which relies on digital manipulation. This results in sharper, clearer images with no loss of resolution.

Bestelectronic zoom

Harrier AF-Zoom Cameras achieve their powerful zoom using a hybrid optical system. This means that the camera first uses optical zoom to magnify the image without sacrificing quality. Once the optical zoom limit is reached, the camera can then switch to digital zoom to further increase magnification, although some loss in image quality may occur.

All our cameras, including Harrier, Tamron and Sony models, are compatible with our Harrier Camera Interface Boards to increase the output options of the cameras. We therefore offer 10x to 55x optical zoom cameras with LVDS, 3G-SDI, USB3, HDMI and Ethernet IP video outputs. All these cameras also include a digital zoom capability; find more information in the product listings.

Opticalzoomvs digitalzoomiPhone

However, recent developments in software have enhanced digital zoom capabilities and more sophisticated algorithms mean that interpolation is more accurate. Digital zoom is also less of a problem if the camera image is downscaled from an image captured using a very high resolution sensor. In this case, when the image is digitally zoomed increased levels of detail can be obtained from the higher resolution image captured by the sensor.

Fixed central zoom field: Optical zoom narrows the field of view (FOV) of the lens system, and only zooms in and out of the center of the field of view. If better precision is needed in portions of the peripheral FOV, then a separate pan and tilt system are also required to change the orientation of the entire camera. A digital zoom can be applied to any region of the camera view, and both views can be displayed simultaneously.

When selecting a camera for your application, you will probably see the optical zoom and/or digital zoom capabilities of the camera listed in the specification (often both). But what do these actually mean, and how do they impact your choice?

By providing your details you are opting-in to receiving our newsletter, which contains information about our products and services, and news on the machine vision industry. We will not share your information with any other organisations and you will not receive communication from anyone other than Active Silicon. We may, from time to time, send emails other than the newsletter which we will believe will be of interest to you concerning our products and services. You may at any time change your preferences or opt-out of receiving these emails by using the link at the bottom of each email.

© 1992-2024 DO-IT, University of Washington (UW). These materials are provided under a Creative Commons BY-NC-SA 3.0 License and in accordance with UW's privacy policy and terms of use.

Active Silicon, a Solid State plc group company, is a specialist manufacturer of imaging products and embedded vision systems. We provide cameras and camera electronics for image data transmission, frame grabbers for data acquisition, and embedded systems for imaging processing and machine control.

Electronic zoomamazon

Electronic and information technology. Includes information technology and any equipment or interconnected system or subsystem of equipment, that is used in the creation, conversion, or duplication of data or information. The term electronic and information technology includes, but is not limited to, telecommunications products (such as telephones), information kiosks and transaction machines, World Wide Web sites, multimedia, and office equipment such as copiers and fax machines. The term does not include any equipment that contains embedded information technology that is used as an integral part of the product, but the principal function of which is not the acquisition, storage, manipulation, management, movement, control, display, switching, interchange, transmission, or reception of data or information. For example, HVAC (heating, ventilation, and air conditioning) equipment such as thermostats or temperature control devices, and medical equipment where information technology is integral to its operation, are not information technology.

Founded in 1988, Active Silicon has a proven track record in providing reliable, high quality products for a variety of industries worldwide. Our products have applications in many areas of science and industry, including manufacturing, life sciences, medical imaging, security and defense. From space missions to large scale deployment of industrial vision systems, we have provided imaging components and embedded systems that help our customers provide world-class solutions.

Furthermore, digital zoom can struggle in low-light conditions. This is because digitally magnifying a poor, low-light image just makes the reduced quality more visible.

Electronic zoomcamera

"Electronic and information technology" is a term used in the 1998 amendments to Section 508 of the Rehabilitation Act. The term is used to define the scope of products covered under Section 508. Section 508 requires that electronic and information technology that is developed, procured, maintained, or used by the federal government be accessible.

One drawback of optical zoom is that, as the image is magnified, the amount of light received by the sensor is reduced. The Automatic Exposure in modern cameras can usually compensate very well for this (by changing gain, shutter speed and iris settings) but it may be an issue with darker scenes and cheaper low sensitivity sensors.

US-based industrial technology solutions provider AMETEK has announced the acquisition of Virtek Vision International, a…

Take a look at the full range and get in touch to see which Harrier AF-Zoom Camera is best suited to your vision system.

Informally, all of these devices are commonly referred to simply as "information technology," or "IT." However, from a legal standpoint, there was a need to expand upon an existing federal definition of information technology, while maintaining consistency with that early definition.