Study on Optimization Method of Quantization Step and the Image Quality Evaluation for Medical Ultrasonic Echo Image Compression by Wavelet Transform

Khieovongphachanh, Vimontha; Hamamoto, Kazuhiko; Kondo, Shozo

doi:10.1541/ieejeiss.129.71

Cited by 3 publications

(5 citation statements)

References 9 publications

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“…However, in the case of medical ultrasonic echo image compression, there are many cases where the results of the subjective assessment and the objective assessment do not show the same tendency. In previous research by author, a breast image showed this tendency significantly as shown in Figure1 [11].…”

Section: Problem Of the Quality Evaluation Of Imagementioning

confidence: 59%

“…This proposed GA method enables to optimize the quantization step while keeping the given PSNR level. As the result of experiment where an image with low contrast ROI is used, both of the result of the subjective assessment and the objective assessment (PSNR) show higher quality and lower bit rate than the arithmetic method case [10] [11].…”

Section: Invited Papermentioning

confidence: 97%

“…In ref. [11], 4 kinds of ultrasonic echo image were used and 12 ultrasonographers took part in the subjective assessment.…”

Section: The Quality Evaluation Of Image By the Subjective Assessmentmentioning

confidence: 99%

“…The results are investigated compared with the result of the subjective assessment. Reference images, compressed images and the result of the subjective assessment are come from Reference [11].…”

Section: Conditionsmentioning

confidence: 99%

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Study on Optimization of Archiving Condition Under Jpeg2000 and Its Quality Evaluation for Medical Ultrasonic Echo Image

Hamamoto

2011

AEJ

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Medical ultrasonic echo image is indispensable diagnostic technique and a large number of the investigation is carried out every day. Therefore, the image compression technique is very important. Author has proposed a technique using Genetic Algorithm (GA) to optimize quantization condition in JPEG2000. The result has shown image quality evaluation by PSNR (the objective assessment) and one by ultrasonographer (the subjective assessment by PSNR) are sometimes not equivalent. In this research, some objective assessment methods and the subjective assessment are compared for 4 images whose diseases part and scanning method are different (image group A). The result shows the objective assessment by a contrast is more consistent with the subjective assessment than the objective assessment by PSNR. Next, proposed GA is modified by using the contrast factor and image group A to optimize an archiving condition. The compressed images by the modified GA are evaluated by the objective assessment by the contrast and the subjective assessment. In this experiment, other 4 images, which are not used to decide the archiving condition, are also used (image group B). As the result, the archiving condition is effective for not only image group A but also image group B. That means the results of the objective assessment by the contrast and the subjective assessment are equivalent whenever using the archiving condition optimized by the modified GA using some typical ultrasonic images. The result also suggests the objective assessment using the contrast factor can be used instead of the subjective assessment.

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Section: Problem Of the Quality Evaluation Of Imagementioning

confidence: 59%

Section: Invited Papermentioning

confidence: 97%

“…In ref. [11], 4 kinds of ultrasonic echo image were used and 12 ultrasonographers took part in the subjective assessment.…”

Section: The Quality Evaluation Of Image By the Subjective Assessmentmentioning

confidence: 99%

Section: Conditionsmentioning

confidence: 99%

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Study on Optimization of Archiving Condition Under Jpeg2000 and Its Quality Evaluation for Medical Ultrasonic Echo Image

Hamamoto

2011

AEJ

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“…In objective assessment, several techniques can be measured quantitative by computer program that can automatically predict perceived image quality. They can be classified as Full -Reference (FR) methods and No-Reference (NR) methods [1], [2], [3], [4], [5], [6], [7]. FR image quality assessment methods are evaluation of testing image that is compared to reference image (original/perfect image).…”

Section: Introductionmentioning

confidence: 99%

Image quality criterion of ultrasonic echo image using Standard Deviation

Khieovongphachanh

Hamamoto

Kanthavong

et al. 2014

The 4th Joint International Conference on Information and Communication Technology, Electronic and Electrical Engineering (JICT

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Image quality plays an important role in various images processing. For ultrasonic echo image, image quality is evaluated by Standard Deviation and ultrasonographers in Tokai hospital. This paper is to find the image quality criterion using Standard Deviation. The image is separated in the block pixel such as 16x16, 32x32, 64x64, 128x128 and block pixel calculate Standard Deviation. The results show that the value is more than 6.92 the image can be used for diagnosis. The image quality criterion is suitable for abdomen part of ultrasonic echo image.

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Study on objective quality measurement for medical ultrasonic echo image compression

Khieovongphachanh

Hamamoto

Kondo

2009

2009 9th International Symposium on Communications and Information Technology

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Study on Optimization Method of Quantization Step and the Image Quality Evaluation for Medical Ultrasonic Echo Image Compression by Wavelet Transform

Cited by 3 publications

References 9 publications

Study on Optimization of Archiving Condition Under Jpeg2000 and Its Quality Evaluation for Medical Ultrasonic Echo Image

Study on Optimization of Archiving Condition Under Jpeg2000 and Its Quality Evaluation for Medical Ultrasonic Echo Image

Image quality criterion of ultrasonic echo image using Standard Deviation

Study on objective quality measurement for medical ultrasonic echo image compression

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