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System and method for processing image data using an image signal processor

A technology of image signal processing and image processing, applied in image data processing, image signal generator, image communication, etc.

Active Publication Date: 2012-07-04
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such conventional demosaicing techniques may not sufficiently consider the location and orientation of edges within the image, which may result in introducing edge artifacts (such as aliasing), tessellation artifacts, or rainbow artifacts into the global image. color images, especially along diagonal edges within the image

Method used

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  • System and method for processing image data using an image signal processor
  • System and method for processing image data using an image signal processor
  • System and method for processing image data using an image signal processor

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Embodiment Construction

[0140] One or more specific embodiments of the present disclosure are described below. These illustrated embodiments are merely examples of the presently disclosed technology. Additionally, in an effort to provide a concise description of these embodiments, not all features of an actual implementation may be described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, in order to achieve the developer's specific goals, which may vary from implementation to implementation, such as compliance with system-related and business-related constraints , various implementation-specific decisions must be made. Furthermore, it should be appreciated that such development efforts might be complex and time consuming, but would nevertheless be a routine undertaking of design, engineering, and production to those of ordinary skill having the benefit of this disclosure.

[0141] When introducing el...

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PUM

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Abstract

The invention discloses a system and a method for processing image data using an image signal processor. Disclosed embodiments provide for a an image signal processing system (32) that includes back-end pixel processing unit (120) that receives pixel data after being processed by at least one of a front-end pixel processing unit (80) and a pixel processing pipeline (82). In certain embodiments, the back-end processing unit (120) receives luma / chroma image data and may be configured to apply face detection operations, local tone mapping, bright, contrast, color adjustments, as well as scaling. Further, the back-end processing unit (120) may also include a back-end statistics unit (2208) that may collect frequency statistics. The frequency statistics may be provided to an encoder (118) and may be used to determine quantization parameters that are to be applied to an image frame.

Description

technical field [0001] The present disclosure relates generally to digital imaging devices and, more particularly, to systems and methods for processing image data obtained using an image sensor of a digital imaging device. Background technique [0002] This Background section is intended to introduce the reader to various aspects of art that may be related to various aspects of the inventive technology that are described and / or claimed below. It is believed that the following discussion helps to provide the reader with background information to facilitate a better understanding of various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art. [0003] In recent years, digital imaging devices have become increasingly popular due at least in part to the increasing affordability of digital imaging devices to the average consumer. Furthermore, in addition to the many stand...

Claims

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Application Information

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IPC IPC(8): H04N9/04
CPCG06K9/00234H04N9/735G06K9/00221H04N5/23219G06T3/4015G06V40/162H04N23/611H04N23/88G06T5/94H04N25/46H04N25/74
Inventor G·科泰J·E·弗雷德里克森
Owner APPLE INC
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