Aplikasi Pendeteksi Wajah Manusia Untuk Menghitung Jumlah Manusia

Pemantauan keramaian di tempat-tempat umum diperlukan untuk pengawasan, monitoring maupun untuk keperluan survey kepadatan manusia. Untuk keperluan survey kepadatan data hasil pemantauan dibutuhkan guna perbaikan tataruang maupun pengembangan infra struktur pada tempat umum tersebut. Menghitung jumlah manusia pada tempat keramaian umum dapat menggunakan tenaga manusia (manual). Tetapi menggunakan cara manual rentan terhadap kesalahan. Maka pada penelitian ini dilakukan perhitungan jumlah manusia dengan cara mendeteksi manusia dari citra input berdasarkan deteksi bagian dari tubuh manusia yaitu wajah. Dalam penelitian ini digunakan Viola Jones untuk mendeteksi wajah manusia dalam citra digital dan capture melalui webcam. Citra diinput mengalami proses resize kemudian diubah menjadi citra abu-abu dengan proses Grayscaling dilanjutkan pembaca fitur haar yang di ambil dari library OpenCV, perhitungan fitur dengan citra integral, dan pendeteksian objek dengan cascade of classifier. Dari hasil pengujian menggunakan Load File diperoleh: akurasi sebesar 84.8 %, error 14.5 % dan koreksi visual 7.3 %. Dan dari hasil percobaan menggunakan Capture Webcam diperoleh: akurasi sebesar 82.9%, error 16.5% dan koreksi visual 1.3%.Kata kunci: Deteksi Wajah, Menghitung Manusia, Viola-jones, Citra, OpenCV, Webcam. PENDAHULUANPemantauan tempat-tempat keramaian umum untuk dapat menghitung jumlah manusia merupakan salah satu dari sekian banyak bidang memanfaatkan teknologi komputer. Sistem deteksi wajah, termasuk di dalamnya penghitungan jumlah wajah dalam suatu citra, merupakan salah satu pemanfaatan teknologi pengolahan citra digital. Proses deteksi wajah manusia dan penghitungan jumlah manusia memerlukan metode tertentu yang didukung dengan suatu perangkat lunak. Oleh karena itu, perlu dibuat sistem yang mampu mengidentifikasi dan menghitung semua daerah citra yang mengandung wajah, yang di dalam penelitian ini digunakan metode Viola Jones. Metode Haar Cascade Classifier sangat ideal digunakan untuk deteksi banyak wajah dalam ruang kelas secara real time. Berdasarkan indikasi dari deteksi wajah secara real time, maka jumlah orang akan di ketahui. Jika citra wajah terhalang oleh objek lain maka citra wajah tersebut tidak akan terdeteksi.Penelitian Pengenalan wajah karyawan dilakukan dengan algoritma Eigenface dimana citra wajah di-capture dengan menggunakan webcam dan hasilnya adalah sebuah file citra dengan format .jpg. Citra wajah kemudian dinormalisasi dengan beberapa tahap yaitu kualitas warna citra diturunkan menjadi grayscale dan mengubah ukuran citra menjadi 100 x 100 piksel. Setelah itu lakukan perhitungan nilai eigen value dari citra wajah dan citra dari database untuk mendapatkan menjadi eigen vector. Bandingkan nilai eigen value citra wajah dengan nilai eigen vector citra database dan tentukan nilai yang paling mendekati sebagai referensi wajah yang paling mirip

Aktivitas Ekstrak dan Tablet Nanopartikel Buah Okra (Abelmoschus esculentus (L) Moench.) Sebagai Anti- Dislipidemia Pada Tikus Yang Diberi High Fat Diet

Dyslipidemia is a condition caused by disruption of lipid metabolism due to the interaction of genetic factors and environmental factors. There is strong evidence of an association between LDL cholesterol and cardiovascular events based on clinical outcome studies, so LDL cholesterol is the main target in the management of dyslipidemia. In addition to using synthetic drugs, dyslipidemia can be treated by consuming natural ingredients, one of which is okra (Abelmoschus esculentus (L) Moench). The form of nanoparticles and nanoparticle tablets of okra fruit extract is an effort to increase antidyslipidemic activity and to make it easier to use. This study aims to obtain nanoparticle extracts and nanoparticle tablets of okra fruit extract which have antidyslipidemic activity in vivo against mice given the High Fat Diet (HFD). The research used 24 rats divided into 6 treatment groups, namely group I as normal control, group II as positive control using simvastatin as the control control, group III as a negative control, group IV as a control treatment of ethanol extract 70% okra fruit, group V as a control treatment of okra fruit extract nanoparticles, and group VI as a treatment of okra fruit extract nanoparticles tablets. All test substances are given for 14 days. Blood sampling was carried out on days 0, 14, and 28, with the parameters measured were lipid profiles including total cholesterol (KT), LDL, Triglycerides (TG) and HDL. 70% ethanol extract, extract nanoparticles, and okra fruit extract nanoparticle tablets can decrease KT levels by 33.14%, 46.31%, 45.42%, decrease TG levels by 39.46%, 43.56%, 41, 62%, decrease LDL levels by 45.22%, 68.76%, 59.94%, and can increase HDL levels by 103.80%, 119.20%, 114.39%. Based on the lipid profile of mice given HFD, 70% ethanol extract, nanoparticles, and okra fruit extract nanoparticle tablets had antidyslipidemic activity.Berdasarkan studi luaran klinis, kolesterol LDL merupakan target utama dalam tatalaksana dislipidemia, obat bahan alam salah satunya buah okra (Abelmoschus esculentus (L) Moench) dapat digunakan sebagai alternatif dalam mengatasi kondisi dislipidemia. Penelitian ini bertujuan menguji aktivitas antisislipidemia ekstrak nanopartikel dan tablet nanopartikel estrak buah okra. Tikus dibagi menjadi 6 kelompok , yaitu kelompok kontrol normal, kelompok kontrol positif (simvastatin) sebagai kontrol pembanding, kelompok III kontrol negatif, kelompok IV perlakuan ekstrak etanol 70% buah okra, kelompok V perlakuan nanopartikel ekstrak buah okra, dan kelompok VI perlakuan tablet nanopartikel ekstrak buah okra. Semua zat uji diberikan selama 14 hari, tikus sebelumnya diberikan HFD dalam bentuk emulsi yang diberi secara oral. Pengambilan darah dilakukan pada hari ke-0, 14, dan 28,parameter yang diukur adalah profil lipid meliputi kadar kolesterol total (KT), LDL, Trigliserida (TG) dan HDL. Ekstrak etanol 70%, nanopartikel ekstrak, dan tablet nanopartikel ekstrak buah okra dapat menurunkan kadar KT sebesar 33,14%, 46,31%, 45,42%, menurunkan kadar TG sebesar 39,46%, 43,56%, 41,62%, menurunkan kadar LDL sebesar 45,22%, 68,76%, 59,94%, dan dapat meningkatkan kadar HDL sebesar 103,80%, 119,20%,114,39%. Berdasarkan profil lipid tikus yang diberikan HFD maka ekstrak etanol 70%, nanopartikel, dan tablet nanopartikel ekstrak buah okra memiliki aktivitas sebagai antidislipidemia

Identifying the potential of Qur’anic recitation on the proliferation of chondrocytes derived from rabbit articular cartilage: work in progress

Introduction: In Islamic practice, the use of Qur’anic recitation in treatment can be traced back to the times of Prophet Muhammad (PBUH). This preliminary study aims to identify the potential of Qur’anic recitation of Surah Al-Fatihah on the proliferation of chondrocytes derived from rabbit articular cartilage. Cartilage tissue engineering offers an alternative way to facilitate cartilage regeneration in-vitro. Materials and Methods: The cellular model was established using a serially cultured and expanded chondrocytes in-vitro. The model was assigned into three groups. The first group was exposed to the Surah Al-Fatihah, recited 17 times based on the five times daily prayer unit (Raka’ah) obligated upon Muslims. The second group was exposed to an Arabic poem recitation. The third group was not exposed to any sound and served as the control. All groups were subjected to the growth profile analysis. The analysis was conducted at different passages starting from passage 0 to passage 3. Results: The results showed that the cells proliferation based on the growth kinetic analysis is higher for the cells exposed with Qur’anic recitation as compared to the Arabic poem and control groups. Conclusions: The proliferation process of the rabbit articular cartilage might be influenced with the use of Qur’anic recitation and as well as Arabic poem recitation. Exposure to the Western poem recitation and mute sound will be added for future study. It is hoped that this study could shed some light on the potential use of the Qur’anic recitation to facilitate cartilage regeneration in tissue engineering studies

Development of the Malay digit triplet test via headphones and telephones as a national hearing screening tool in Malaysia

Introduction: This study aimed to develop a self-administered hearing screening test using digit triplets in Malay (MDTT) to be used as a national hearing screening tool via internet and telephone landlines in Malaysia. Methods: Recordings of disyllabic Malay digits by a female Malay native speaker were used together with a speech shaped stationary noise (TSN). The test stimuli were normalized using responses from twenty normal hearing native Malay speakers. The data were used to produce eight equivalent test lists. An additional twenty normal hearing native Malay speakers were recruited to test the lists equivalency. Forty six listeners with varying levels of hearing were recruited to validate the tests. ROC analysis was done to identify the pass and refer cut-off limits. Results: No statistical differences were found between lists for both test conditions. The evaluation in fixed SNRs resulted in a mean speech reception threshold (SRT) of -11.3 ± 0.34 dB SNR for headphone and -10.24 ± 0.1 dB SNR for telephone applications. A significant main effect of type of transducer was observed in both normal and hearing impaired groups. The cut off for refer, sensitivity and specificity for the tests using telephones are (-5.8dB, 80.8%, 95%) and headphones (-9.8dB, 80.8%, 100%). Conclusions: The MDTT was successfully developed and the normative values are comparable to other versions of the digit triplet tests. The MDTT showed high sensitivity and specificity and can be made available to any Malay speaking public via telephone and internet

Investigation on common errors made by audiology students during clinical training

Objectives/Research Problem: Simulated Learning Environment (SLE) is the current educational pedagogy that has been applied in audiology. It has been suggested that SLE should include as much as possible formative feedback component to ensure any mistakes made by the students in the SLE training can become a form of reflective learning. This study aims to identify the common errors made by the audiology students in the clinic through questionnaire survey. Materials and Method: A new set of questionnaire has been developed by reviewing IIUM clinic protocol and from qualitative opinion given by two audiology instructors. The questionnaire has been validated by two experts in language to improve the overall readability of the questionnaire. In future phase, the questionnaire will be validated by two experts (familiar with audiology) to check the relevancy of each of the item through statistical evaluation. The actual survey will be carried among 10 audiology preceptors (n=10) from Universiti Sains Malaysia (USM), Universiti Kebangsaan Malaysia (UKM) and International Islamic University Malaysia (IIUM). Results and Discussion: The common errors will be ranked from the least to the most common based on the answers from the questionnaire. Conclusion: With the typical errors obtained from this study, a comprehensive feedback module can be included for future novel audiology SLE training

CURCUMIN MICROENCAPSULATION USING CHITOSAN–ETHYL CELLULOSE–GMS MIXTURE FOR PRESERVATION OF MUCOADHESIVE PROPERTIES AND CONTROLLED RELEASE KINETIC

Objective: This research aimed to prepare curcumin microcapsules by the spray drying method and to evaluate their characteristics. Methods: The microcapsules were prepared by the spray drying method. The generated microcapsules were evaluated for organoleptic, morphology, particle size, the percentage of curcumin and water content. Furthermore, the release of curcumin from the microcapsules was tested in vitro and compared to uncoated curcumin powder. In addition, the mucoadhesive properties of uncoated curcumin powder and curcumin microcapsules were also evaluated. Results: The results showed that the microcapsules had spherical shape with particle size in the range of 100–1009 µm and water content of 9.34% (w/w) (FIII) and 8.09% (w/w) (FVI). The release of curcumin from its uncoated powder and the microcapsules FVI within 8 h were 8.87% and 26.32% (w/w), respectively. It was found that the mucoadhesive properties of microcapsules FVI were better than those of FIII and uncoated curcumin powder. Microcapsules FVI rendered the cumulative amount of curcumin remaining on the intestinal mucosa of 55% (w/w) within 3 h. Conclusion: Accordingly, curcumin microcapsules generated by spray drying could be further formulated into various solid dosage forms for a better therapeutic effect

A Socio-Legal Study on Tourists’ Perception and Opinion towards Immigrant Influx at the Heritage Zone of Kuala Lumpur

Kuala Lumpur is one of the tourism destinations which offers a balance of historical and modern development. It has become a central meeting place for the immigrants who monopolised the business operation. This study examines and analyses the perception and opinion of tourists visiting Kuala Lumpur towards the immigrants' influx in the heritage zone. The variables are categorised into three; demographic characteristics of the tourists; tourists' perception and opinion towards the immigrant influx; and tourists’ perception and opinion towards heritage conservation and value. The finding helps the stakeholders to formulate a policy in controlling the immigrant influx in Kuala Lumpur. Keywords: tourists; immigrants; heritage zone. eISSN: 2398-4287© 2020. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v5i15.251