지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
For efficient and accurate diagnosis of ultrasound images, appropriate time gain compensation(TGC) and dynamic range(DR) control of ultrasound echo signals are important. TGC is used for compensating the attenuation of ultrasound echo signals along the depth, and DR controls the image contrast. In recent ultrasound systems, these two factors are automatically set by a system and/or manually adjusted by an operator to obtain the desired image quality on the screen. In this paper, we propose an algorithm to find the optimized parameter values for TGC and DR automatically. In TGC optimization, we determine the degree of attenuation compensation along the depth by dividing an image into vertical strips and reliably estimating the attenuation characteristic of ultrasound signals. For DR optimization, we define a novel cost function by properly using the characteristics of ultrasound images. We obtain experimental results by applying the proposed algorithm to a real ultrasound(US) imaging system. The results verify that the proposed algorithm automatically sets values of TGC and DR in real-time such that the subjective quality of the enhanced ultrasound images may be sufficiently high for efficient and accurate diagnosis.
목차
등록된 정보가 없습니다.
참고문헌 (8)
참고문헌 신청
A. Bryant / 1991. / Adaptive gain control and contrast improvement for medical diagnostic ultrasound B-mode imaging system using charge-couples devices
B. Richard / 1992. / A new digital adaptive time gain correction for B-mode ultrasonic imaging in Proc. IEEE Eng- ineering in Medicine
C. Munteanu / 2004.04 / Gray-scale image enhancement as an automatic process driven by evolution 34 : 1292 ~ 1298
D. I. Hughes / 1997. / Automatic attenuation comp- ensation for ultrasonic imaging 23 : 651 ~ 664
P. F. Stetson / 1997.08 / Lesion contrast enhancement in medical ultrasound imaging 16 : 416 ~ 424
B. Richard / 1992. / A new digital adaptive time gain correction for B-mode ultrasonic imaging in Proc. IEEE Eng- ineering in Medicine
C. Munteanu / 2004.04 / Gray-scale image enhancement as an automatic process driven by evolution 34 : 1292 ~ 1298
D. I. Hughes / 1997. / Automatic attenuation comp- ensation for ultrasonic imaging 23 : 651 ~ 664
P. F. Stetson / 1997.08 / Lesion contrast enhancement in medical ultrasound imaging 16 : 416 ~ 424
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