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A method and device for sensor level image distortion abatement

An image sensor and image technology, applied in image acquisition, image communication, image data processing, etc.

Inactive Publication Date: 2006-08-23
DVIP MULTIMEDIA INC
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  • Description
  • Claims
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Problems solved by technology

Efficient and reliable image segmentation continues to be an open challenge

Method used

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  • A method and device for sensor level image distortion abatement
  • A method and device for sensor level image distortion abatement
  • A method and device for sensor level image distortion abatement

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specific Embodiment approach

[0165] Figure 14 The sensor accelerator illustrates a basic digital imaging system with a sensor accelerator attached. The sensor accelerator samples the sensor array and implements signal processing techniques on individual pixels (regions) during image formation. In particular, sensor accelerators implement the methods described in this work. The sensor accelerator can be a discrete programmable chip processor such as an Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), Digital Signal Processor (DSP), or Reduced Instruction Set Computer (RISC) microprocessor.

[0166] The function of the highly integrated sensor accelerator Sensor accelerator can be combined with other components of the imaging system to reduce the number of chips and reduce production costs and power consumption. Figure 15 , 16 and 17 illustrate an additional configuration of three sensor accelerations. Figure 15 Illustration of sensor-accelerator technology integr...

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Abstract

A method, apparatus and software product for image processing using meta-data obtained by sampling the pixels or pixel regions of the image sensor array during the acquisition of the image. A performance enhancement is achieved by applying (non-linear) signal processing methods to the individual pixels or pixel regions of the array during image formation. The in-situ signal processing method described leverage knowledge of the image formation process to improve the signal quality of the pixels in the array. The present method, apparatus and software product may be used for post acquisition processing of the image or for processing during or immediately following acquisition of the image. Embodiments of the method mitigate noise, blur, and low contrast distortions in digital imaging arrays. Hardware and software embodiments are also presented.

Description

technical field [0001] The present invention generally relates to a method and apparatus for the capture, analysis and enhancement of digital still images and digital image sequences, and to a software product implementing such a method. Background technique [0002] Millions of users are turning to digital devices to capture and store their files and still and moving images. Market analysis estimates that a total of 140 million digital image sensors were produced in 2002, all of which are used in digital cameras and scanners. It is predicted that this number will grow by more than 60% every year until 2006. A digital image sensor is the "film" on which images are captured and establishes the basis for image quality in digital imaging systems. In order to obtain a meaningful digital image after the image is captured, current camera designs require an enormous amount of processing of the data from the digital image sensor. Despite such processing, millions of users still n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/40H04N5/228H04N7/18G06T1/00H04N5/357H04N9/07
CPCG06T1/0007
Inventor D·L·塔尔A·K·卡采格洛斯
Owner DVIP MULTIMEDIA INC
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