Shinji Fukui

Learn More
This paper proposes a GPU based algorithm for extracting moving objects in real time. The whole process of the proposed approach is handled on GPU. GPU is used for acceleration and the proposed approach increases processing speed dramatically. The method uses a* component and b* component of CIELAB color space without extracting shadow areas as moving(More)
OBJECTIVES To elucidate the significance of intrarenal reflux. METHODS We retrospectively analyzed 276 patients (age <5 years) with grade III to V vesicoureteral reflux. They were divided into two groups: 55 patients with intrarenal reflux and 221 patients without intrarenal reflux (control group). All patients received low-dose antibiotic prophylaxis. (More)
A 64-year-old Japanese man had started molecular-targeted therapy with sunitinib for lymph node metastasis 5 years after nephrectomy for left renal cell carcinoma (clear cell carcinoma, G2, pT2N0M0). He was transported to our emergency department because of generalized tonic-clonic seizure, vision loss, and impaired consciousness with acute hypertension(More)
A new approach is proposed to recover the relative magnitude of Gaussian curvature from three shading images using neural network. Under the assumption that the test object has the same reflectance property as the calibration sphere of known shape, RBF neural network learns the mapping of three observed image intensities to the corresponding coordinates of(More)
A 70-year-old male was referred to our hospital because of an abnormally high prostate specific antigen (PSA) level (4.4 ng/ml) associated with lower urinary tract symptoms. Needle biopsy of the prostate did not reveal any malignant tissue. Four months later, the patient presented again with hydronephrosis, which was diagnosed using ultrasonography.(More)
An endoscope is a medical instrument that acquires images inside the human body. This paper proposes a new approach for the automatic detection of polyp regions in an endoscope image using a Hessian filter and machine learning techniques. Previous approaches tried to detect candidate polyp regions based on rectangular patches. But, a purely patch-based(More)