Simple Clips Research Articles

An Unsupervised Method to Extract Video Object via Complexity Awareness and Object Local Parts

Existing unsupervised video object segmentation generates object information from the whole video, which ignores analysis of the local clips. However, we observe that local clips and their relationships are also useful for the video object segmentation. For example, the simple background clips can be used to improve the segmentation of complex background clips. In this paper, we propose a novel unsupervised segmentation framework to segment the primary object based on two aspects, i.e., the complexity awareness of video clips and their segmentation propagation. The first one is used to select the simple clips with smooth backgrounds and the second one generates an object prior from the simple clips and propagates the object prior to help and improve the segmentation of the complex clips. A complexity awareness method using the static cues and the dynamic cues are proposed to evaluate the complexity of the video frames. A new object prior learning model based on the local part structure is designed and a local part-based prior propagation is proposed for the complex clip segmentation. To verify our method, we collect a new challenging video segmentation data set, in which each video contains diverse backgrounds. Experimental results demonstrate that our method outperforms several state-of-the-art methods both on a classical data set and our new data set.

Vibration-based damage detection of structural joints in presence of uncertainty

Early damage detection of structure’s joints is essential in order to ensure the integrity of structures. Vibration-based methods are the most popular way of diagnosing damage in machinery joints. Any technique that is used for such a purpose requires dealing with the variability inherent to the system due to manufacturing tolerances, environmental conditions or aging. The level of variability in vibrational response can be very high for mass-produced complex structures that possess a large number of components. In this study, a simple and efficient time frequency method is proposed for detection of damage in connecting joints. The method suggests using singular spectrum analysis for building a reference space from the signals measured on a healthy structure and then compares all other signals to that reference space in order to detect the presence of faults. A model of two plates connected by a series of mounts is used to examine the effectiveness of the method where the uncertainty in the mount properties is taken into account to model the variability in the built-up structure. The motivation behind the simplified model is to identify the faulty mounts in trim-structure joints of an automotive vehicle where a large number of simple plastic clips are used to connect the trims to the vehicle structure.

The influence of external factors on the accuracy of non-invasive measuring of oxygen in blood

In this paper we investigated a pulse oximetry-based method for mobile devices. This method obtains bio-signals related to blood pulsation in transparent parts of body. The most widely accepted field for use of this method is hospital care. In these cases a pulse oximeter is the best solution for the monitoring of emergency patients. A promising field for pulse oximetry is physical exercise. It only requires simple clips such as ear-clips, finger-clips, headbands etc. However this method presents some difficulties: weak signal, noise ratio, motion artefacts, low perfusion. We used a MAX30100 Oximeter and Heart Rate Sensor integrated circuit to obtain signals of blood pulse waves from red and infrared light emission diodes (LED). This device measures the oxygen saturation of a person’s blood by placing an LED and a photodetector against the thin skin of a person’s body, such as a fingertip, wrist or earlobe. The MAX30100 is a 14-pin surface mount integrated circuit that contains sensors for measuring a person’s heart rate. It can also indirectly determine the oxygen saturation of a person’s blood. The MAX30100 provides a complete pulse oximetry and heart rate measurement solution for medical monitors and wearable fitness devices. As each LED emits light into a person’s finger, the integrated photodetector measures variations in light caused by changes in blood volume. An integrated 16-bit analog to digital converter (ADC) with programmable sample rate converts the photodetector output to a digital value. The MAX30100 filters out ambient light that can interfere with an accurate reading. Data are read through a serial I2C interface to computer for further processing. The LED current can be programmed from 0 to 50 mA with proper supply voltage. The LED pulse width can be programmed from 200 µs to 1.6 ms to optimize measurement accuracy and power consumption based on use cases. The SpO2 algorithm is relatively insensitive to the wavelength of the infrared LED, but the red LED’s wavelength is critical to correct interpretation of the data. The temperature sensor data can be used to compensate errors with ambient temperature changes. During the experiments we registered oxygen concentration values under different conditions. With low muscular activity we observed high stability and repeatability of measuring values under various exterior conditions. However, with high muscular activity there were various artefacts in the gauged signals that led to contortion of effects. We identified the boundaries of the validity of measuring and propose the use of an adapted filter in order to distinguish pulse waves from optical signals more reliably. These devices can be applied in fitness training , medical monitoring and used as wearable devices.

Converting the PAROLE SIMPLE CLIPS lexicon into RDF with lemon

This paper describes the publication and linking of (parts of) PAROLE SIMPLE CLIPS (PSC), a large scale Italian lexicon, to the Semantic Web and the Linked Data cloud using the lemon model. The main challenge of the conversion is discussed, namely the reconciliation between the PSC semantic structure which contains richly encoded semantic information, following the qualia structure of the Generative Lexicon theory and the lemon view of lexical sense as a reified pairing of a lexical item and a concept in an ontology. The result is two datasets: one consists of a list of lemon lexical entries with their lexical properties, relations and senses; the other consists of a list of OWL individuals representing the referents for the lexical senses. These OWL individuals are linked to each other by a set of semantic relations and mapped onto the SIMPLE OWL ontology of higher level semantic types.

The Expression Of Simultaneity In Li Dutch

The focus of the current study is on the temporal relation of simultaneity between events. Investigating the expression of simultaneity, and the development thereof, reveals interesting insights concerning the use of a particular grammatical aspectual marker in Dutch. Adult native speakers of Dutch and 4-7-year-old children acquiring Dutch as their only L1 were set to the task of retelling simple animated clips depicting either simultaneous or sequential events. The data provide an overview of linguistic means available in Dutch for expressing various types of simultaneity. A main finding is that the Dutch progressive construction - aan het + V-inf zijn - is widely used when expressing simultaneous events, already from an early age onwards. Furthermore, when examining children's production data, several age-specific temporal linking strategies can be described. For example, children do not always adhere to the Principle of Natural Order in their narrations. Instead, children, especially at the early developmental stages, are mainly concerned with changes of state in the depicted event. That means, changes of state have a direct impact on children's cognitive development of temporality. We speculate that the concept of simultaneity is therefore easier to acquire than that of sequentiality.

An audit of cystic duct closure in laparoscopic cholecystectomies

Cystic duct leak is an infrequent but potentially serious complication of laparoscopic cholecystectomy. The aims of this audit were to assess the efficacy of locking absorbable clips for closing the cystic duct and to compare the results with those for simple clips used previously. The records for all laparoscopic cholecystectomies performed in one hospital over a 5-year period were reviewed. The results were compared using Fisher's exact test. Of 518 laparoscopic cholecystectomies attempted, 24 were excluded. There was no difference in age or sex ratio between the two groups. Cystic duct leaks were identified either on endoscopic retrograde choloangio pancreatography or at laparotomy. No cystic duct leak occurred in any of the 344 locking clip cases, as compared with 3 leaks in the 146 (2%) simple clip cases (p < 0.03). Locking clips are a safe and effective method for cystic duct closure. They are associated with a reduced cystic duct leak rate, as compared with that for simple clips.

컨텐츠 제공자 지정 웹 클리핑 방식의 이동 인터넷 컨텐츠 변환

작은 화면을 가진 이동 단말기에서 데스크탑 화면에 맞추어 제작된 웹 컨텐츠들을 브라우징 하는 것은 많은 어려움을 갖는다. 웹 페이지에는 이동 단말기용 브라우저의 제한된 기능으로 인해 표시할 수 없는 객체가 일부 포함되어 있는 경우도 있고, 브라우저에서 호환되지 않는 마크업 표준을 사용하여 브라우징 자체가 불가능할 수도 있다. 본 논문에서는 웹 페이지를 이동 단말기에 최적화된 형태로 변환할 수 있는 웹 클리핑 방식의 새로운 이동 인터넷 컨텐츠 적응 방법을 소개한다. 이 방법에서는 컨텐츠 제공자가 클립 편집기를 이용하여 설정한 클립 명세에 따라 원본 웹 문서가 자동으로 클리핑 되고 변환된다. 클립 편집기는 컨텐츠 제공자가 단일 클립, 그룹 클립, 다중 레벨 클립, 동적 클립을 설정하고, 문서의 레이아웃을 수정할 수 있도록 한다. 이렇게 설정된 클립 명세에 따라 원본 문서로부터 추출된 각 클립들은 먼저 중간 언어 형태의 문서로 변환되고, 이는 다시 이동 단말기를 위한 최종 마크업 문서로 변환된다. 또한 다양한 이미지 타입에 대한 변환기능을 제공한다. Web contents created for desktop screens give rise to problems when they are to be displayed on the small screens of mobile terminals. While in some cases some of the objects of a page may not be displayable due to the lack of browser capability, the entire page may not be displayable due to the incompatibility with the browser in other cases. In this paper, we introduce a new mobile content adaptation approach based on web clipping, which transforms an original page into one that is optimally displayed on a mobile terminal. In this method, a source page is automatically clipped and transformed according to the clip specification made by the content provider using a clip editing tool. The clip editing tool allows the user to specify group clips, multi-level cups and dynamic clips as well as simple clips, and the presentation layout through a graphic user interface. Based on the clip specifications, each clip is transformed into an intermediate meta-language document, which in turn is transformed into a presentation page in the target markup language. Transcoding of image objects in major image file formats is also supported.