Digital zoom methods and systems

a digital zoom and method technology, applied in the field of image processing, can solve the problems of low-quality images, blurred details, image artifacts, and/or washed-out appearances, present digital zoom technologies, etc., and achieve the effect of enhancing the quality of images produced

Active Publication Date: 2016-08-25
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Benefits of technology

[0007]In some cases, present digital zoom technologies produce low-quality images. The present appl

Problems solved by technology

One challenge with present digital zoom technologies is that they produce low-quality images.
In some cases, these technologies cause images to have jaggy edges, bl

Method used

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  • Digital zoom methods and systems

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Embodiment Construction

[0030]Various aspects of the novel systems, apparatuses, and methods disclosed herein are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein one skilled in the art should appreciate that the scope of the disclosure is intended to cover any aspect of the novel systems, apparatuses, and methods disclosed herein, whether implemented independently of, or combined with, any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover ...

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PUM

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Abstract

In some cases, conventional digital zoom techniques can lead to poor quality images. Disclosed are systems and methods for improving the quality of images generated by digital zoom. For example, in some embodiments, a parallel structure is utilized where an image is passed through a sharpener and a 2D directional upscaler at the same time. Upscaling operations are then performed on the sharpened image. The upscaled sharpened image is added to the output of the 2D directional upscaler to produce an enhanced image.

Description

BACKGROUND[0001]1. Field[0002]The present application relates generally to image processing, and more specifically to methods and systems for enhancing digital zoom.[0003]2. Description of the Related Art[0004]A zooming feature of an imaging system (for example, a camera) allows the system to change smoothly from a long shot of a scene to a close-up shot, and vice-versa. In other words, zooming decreases and / or narrows the apparent angle view of a digital photograph or video.[0005]There are generally two types of zooms for cameras. One type of zoom is an optical zoom. Optical zoom may use a real zoom lens and / or a prime telephoto lens. Because these lenses allow cameras to physically focus in on targets, optical zooms can produce zoomed images without losing image quality. Digital zoom allows cameras to zoom without having to physically focus lenses. The technology enlarges a portion of the original image using image processing.[0006]One challenge with present digital zoom technolog...

Claims

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Application Information

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IPC IPC(8): H04N5/232G06T5/00G06T3/40
CPCH04N5/23296G06T5/003G06T3/4007G06T3/40H04N23/69
Inventor LI, FENGFAN, SHU FEISAHU, SHILPILI, MINCHEN, YUNQIANGJIANG, XIAOYUN
Owner QUALCOMM INC
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