Recently, the digital image blind forensics technology has received an increasing attention in academic community. This paper aims at developing a new identification approach based on the statistical noise and exchang...Recently, the digital image blind forensics technology has received an increasing attention in academic community. This paper aims at developing a new identification approach based on the statistical noise and exchangeable image file format （EXIF） information of image for images authen- tication. In particular, the authors can identify whether the current image has been modified or not by utilizing the relevance between noise and EXIF parameters and comparing the real values with the estimated values of the EXIF parameters. Experimental results validate the proposed method. That is, the detecting system can identify the doctored image effectively.展开更多
A blind digital image forensic method for detecting copy-paste forgery between JPEG images was proposed.Two copy-paste tampering scenarios were introduced at first:the tampered image was saved in an uncompressed forma...A blind digital image forensic method for detecting copy-paste forgery between JPEG images was proposed.Two copy-paste tampering scenarios were introduced at first:the tampered image was saved in an uncompressed format or in a JPEG compressed format.Then the proposed detection method was analyzed and simulated for all the cases of the two tampering scenarios.The tampered region is detected by computing the averaged sum of absolute difference(ASAD) images between the examined image and a resaved JPEG compressed image at different quality factors.The experimental results show the advantages of the proposed method:capability of detecting small and/or multiple tampered regions,simple computation,and hence fast speed in processing.展开更多
Acute compartment syndrome （ACS） usually occurs after an injury to a limb or other adjacent organ, when there is insufficient blood supply to muscles and nerves due to swelling and increased pressure within a body c...Acute compartment syndrome （ACS） usually occurs after an injury to a limb or other adjacent organ, when there is insufficient blood supply to muscles and nerves due to swelling and increased pressure within a body compartment. Classically, there are six symptoms and signs associated with ACS, all of which have an initial letter ＇P＇： pain, paresthesia, pallor, paralysis, pulselessness and poik- ilothermia The complexities of the clinical diag- nosis and management of ACS remain a challeng- ing oroblem for orthooedic surgeons.展开更多
Patients developing hemoptysis or pulmonary infiltrates together with glomerulonephritis, particu- larly the rapidly progressive cases, are considered to be pulmonary renal syndrome （PRS）. The occur- rence of PRS, a...Patients developing hemoptysis or pulmonary infiltrates together with glomerulonephritis, particu- larly the rapidly progressive cases, are considered to be pulmonary renal syndrome （PRS）. The occur- rence of PRS, an etiologically rare heterogeneous group of diseases, constitutes a medical emergency associated with a high risk of fatal outcome.展开更多
Species identification of biological samples is widely used in such fields as forensic science and food industry. A variety of accurate and reliable methods have been developed in recent years. The current review show...Species identification of biological samples is widely used in such fields as forensic science and food industry. A variety of accurate and reliable methods have been developed in recent years. The current review shows common target genes and screening criteria suitable for species identification, and described various DNA-based molecular biology methods about species identification. Additionally, it discusses the future development of species identification combined with real-time PCR and sequencing technologies.展开更多
基金supported by the National Natural Science Foundation of China under Grant Nos.61370195and 11101048Beijing Natural Science Foundation under Grant No.4132060the National Cryptography Development Foundation of China under Grant No.MMJJ201201002
文摘Recently, the digital image blind forensics technology has received an increasing attention in academic community. This paper aims at developing a new identification approach based on the statistical noise and exchangeable image file format （EXIF） information of image for images authen- tication. In particular, the authors can identify whether the current image has been modified or not by utilizing the relevance between noise and EXIF parameters and comparing the real values with the estimated values of the EXIF parameters. Experimental results validate the proposed method. That is, the detecting system can identify the doctored image effectively.
基金Project(61172184) supported by the National Natural Science Foundation of ChinaProject(200902482) supported by China Postdoctoral Science Foundation Specially Funded ProjectProject(12JJ6062) supported by the Natural Science Foundation of Hunan Province,China
文摘A blind digital image forensic method for detecting copy-paste forgery between JPEG images was proposed.Two copy-paste tampering scenarios were introduced at first:the tampered image was saved in an uncompressed format or in a JPEG compressed format.Then the proposed detection method was analyzed and simulated for all the cases of the two tampering scenarios.The tampered region is detected by computing the averaged sum of absolute difference(ASAD) images between the examined image and a resaved JPEG compressed image at different quality factors.The experimental results show the advantages of the proposed method:capability of detecting small and/or multiple tampered regions,simple computation,and hence fast speed in processing.
文摘Acute compartment syndrome （ACS） usually occurs after an injury to a limb or other adjacent organ, when there is insufficient blood supply to muscles and nerves due to swelling and increased pressure within a body compartment. Classically, there are six symptoms and signs associated with ACS, all of which have an initial letter ＇P＇： pain, paresthesia, pallor, paralysis, pulselessness and poik- ilothermia The complexities of the clinical diag- nosis and management of ACS remain a challeng- ing oroblem for orthooedic surgeons.
文摘Patients developing hemoptysis or pulmonary infiltrates together with glomerulonephritis, particu- larly the rapidly progressive cases, are considered to be pulmonary renal syndrome （PRS）. The occur- rence of PRS, an etiologically rare heterogeneous group of diseases, constitutes a medical emergency associated with a high risk of fatal outcome.
基金supported by the grants from the 12th Five-year Plan National Key Technology R&D Program of the Ministry of Science and Technology of P.R.China (2012BAK16B01)the National Natural Science Foundation of P.R.China (81330073, 81222041)
文摘Species identification of biological samples is widely used in such fields as forensic science and food industry. A variety of accurate and reliable methods have been developed in recent years. The current review shows common target genes and screening criteria suitable for species identification, and described various DNA-based molecular biology methods about species identification. Additionally, it discusses the future development of species identification combined with real-time PCR and sequencing technologies.
