An effieient algorithm for fractal image coding using kick-out and zero contrast conditions

Title should be: An efficient algorithm for fractal image coding using kick-out and zero contrast conditionsCorrect title: An efficient algorithm for fractal image coding using kick-out and zero contrast conditionsRefereed conference paper2003-2004 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Locating the human eye using fractal dimensions

2001-2002 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Maximal disk based histogram for shape retrieval

2002-2003 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

An efficient low bit-rate video-coding algorithm focusing on moving regions

2001-2002 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Isolated foetal ascites.

The prenatal diagnosis and perinatal outcome of two patients with isolated foetal ascites compatible with chyloperitoneum is described. The foetal ascites resolved spontaneously after delivery with good perinatal outcome in both cases. A good prognosis can be anticipated in such cases. Antepartum and intrapartum interventions are seldom necessary.published_or_final_versio

Influenza B/Streptococcal co-infection complicated by organizing pneumonia

published_or_final_versio

Prevalence of undiagnosed airflow obstruction among people with a history of smoking in a primary care setting

Purpose: The purpose of this study was to define the prevalence of undiagnosed airflow obstruction (AO) among subjects with a history of smoking but no previous diagnosis of chronic lung disease. The finding of AO likely represents diagnosis of chronic obstructive pulmonary disease. Patients: People aged ≥30 years with a history of smoking who attended public outpatient clinics for primary care services were included in this study. Methods: A cross-sectional survey in five clinics in Hong Kong using the Breathlessness, Cough, and Sputum Scale, the Lung Function Questionnaire, and office spirometry was conducted. Results: In total, 731 subjects (response rate =97.9%) completed the questionnaires and spiro­metry tests. Most of the subjects were men (92.5%) in the older age group (mean age =62.2 years; standard deviation =11.7). Of the 731 subjects, 107 had AO, giving a prevalence of 14.6% (95% confidence interval =12.1–17.2); 45 subjects with AO underwent a postbronchodilator test. By classifying the severity of chronic obstructive pulmonary disease using the Global Initiative for Chronic Obstructive Lung Disease, 27 (60%) were considered to be in mild category and 18 (40%) in moderate category. None of them belonged to the severe or very severe category. The total score of Lung Function Questionnaire showed that majority of the subjects with AO also had chronic cough, wheezing attack, or breathlessness, although most did not show any acute respiratory symptoms in accordance with the Breathlessness, Cough, and Sputum Scale. Diagnosis of AO was positively associated with the number of years of smoking (odds ratio =1.044, P=0.035) and being normal or underweight (odds ratio =1.605, P=0.046). It was negatively associated with a history of hypertension (odds ratio =0.491, P=0.003). Conclusion: One-seventh of smokers have undiagnosed AO. Spirometry screening of smokers should be considered in order to diagnose AO at an early stage, with an emphasis on smoking cessation.published_or_final_versio

An efficient color compensation scheme for skin color segmentation

2002-2003 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

A very low bit-rate video coding algorithm by focusing on moving regions

2000-2001 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

A fast fractal image coding based on kick-out and zero contrast conditions

2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe