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All Journal Jurnal Teknologi Conference SENATIK STT Adisutjipto Yogyakarta Angkasa: Jurnal Ilmiah Bidang Teknologi Compiler KACANEGARA Jurnal Pengabdian pada Masyarakat Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Intimas (Jurnal INTIMAS): Inovasi Teknologi Informasi Dan Komputer Untuk Masyarakat
Yenni Astuti, Yenni
Unknown Affiliation
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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Recognition of Hand Gestures Using Image with Histogram Feature Extraction and Euclidean Distance Classification Method Astuti, Yenni; Sudaryanto, Sudaryanto; Ariyanti, Indah Dwi
Compiler Vol 13, No 2 (2024): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/compiler.v13i2.2640

Abstract

Human-Computer Interaction technology allows humans to communicate with computers using natural language such as gestures. One of the gestures used by humans to communicate is hand gestures. In this research, hand gestures are recognized using images that represent pitch, roll, and yaw movement. As a feature extraction method, the histogram is used, while the classification method used is the Euclidean distance. From the experimental results, the combination of the histogram feature extraction method and the Euclidean distance classification method had an accuracy of 30 percent for images representing pitch and yaw movements, and 60 percent for images representing roll movements.
Hand Gesture-Based Human-Computer Interaction using MediaPipe and OpenCV Putri, Risma Dwi Tjutarjo; Lasmadi, Lasmadi; Kusumaningrum, Anggraini; Nurdin, Riani; Astuti, Yenni
Aviation Electronics, Information Technology, Telecommunications, Electricals, and Controls (AVITEC) Vol 7, No 2 (2025): August
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v7i2.3132

Abstract

This study presents the design and implementation of a real-time hand gesture recognition system for directional movement using MediaPipe and OpenCV. The system aims to enhance Human-Computer Interaction (HCI) by recognizing four primary hand gestures—forward, backward, left, and right—based on real-time video input from a standard webcam. The proposed method extracts 21 hand landmarks using MediaPipe, then analyzes landmark displacement to determine the direction of movement. Experiments were conducted under three lighting conditions (bright, moderate, dim) and at three distances (200 cm, 300 cm, and 450 cm). Results show that the system achieved 100% recognition accuracy for all gestures at 200 cm. At 300 cm, accuracy slightly decreased, particularly for backward gestures (down to 77.5%). At 450 cm, performance dropped significantly, with accuracy for some gestures falling below 30%, especially under dim lighting. These findings demonstrate that the proposed system performs reliably at short to medium distances and is sensitive to lighting conditions and user proximity. This research contributes to the development of touchless interfaces for smart environments, presentations, and other interactive applications.
PERANCANGAN MODEL PENGEMBANGAN KAPASITAS PELAKU WISATA DI BUKIT PARALAYANG KULON PROGO MELALUI STRATEGI PELATIHAN TERPADU Astuti, Yenni; Kusumaningrum, Maria Asumpta Deny; Funny, Rindu Alriavindra; Rahmawati, Fajar Khanif
Intimas Vol 5 No 2 (2025)
Publisher : Fakultas Teknologi Informasi dan Industri Unisbank

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35315/intimas.v5i2.10263

Abstract

Giri Sembung Paragliding Hill, located in Banjarasri Village, Kulon Progo, is an emerging tourism destination managed independently by the local community. To support the capacity development of tourism actors, this community service program aims to design a modular and practical training model. The model consists of three complementary phases: (1) tourism communication training (English language), (2) digital promotion and content creation training, and (3) tourism management and service training. The implementation method adopts a participatory approach, grounded in field observations, discussions with local partners, and reflections from the initial phase of training. The developed model is flexible and can be implemented in stages according to the readiness of the community. Initial validation shows that the model is relevant, beneficial, and potentially replicable in other community-based tourism destinations with similar characteristics. This initiative is expected to contribute meaningfully to the professional development of community-based tourism actors and to enhance the competitiveness of local tourism destinations.
Robust Stability of Sliding Mode Control for Pitch Attitude Boeing 747 Aircraft System Setiawan, Paulus; Matuan, Lorenso Oldiardo; Astuti, Yenni; Sudibya, Bambang; Dermawan, Denny; Kurniawan, Freddy; Lasmadi, Lasmadi
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 17, No 2 (2025)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v17i2.3074

Abstract

Modern aircraft have experienced rapid development at this time, which is proven by the discovery of more complex systems on aircraft. One of the systems that has experienced rapid development is the autopilot, which can control the aircraft automatically. The design of the pitch attitude system begins by collecting data on the longitudinal motion of the aircraft, which is then converted into a mathematical equation of the transfer function for the pitch motion. After the pitch attitude instability is identified, a compensator is made to improve the stability of the pitch motion, with the compensator used in this study being the lead compensator. The main objective of this study is to create a system that can identify parameter values on the Luenberger Observer control and sliding mode control (SMC) in the flight control system. The results of several test experiments clearly show that the proposed SMC controller can produce better and more stable system performance. 
Pelatihan sistem informasi catatan Bimbingan Konseling (BK) bagi guru bimbingan konseling SMA di Kabupaten Sleman Nuryatno, Edi Triono; Ayuningtyas, Astika; Wahyudi Sumari, Arwin Datumaya; Nugraheny, Dwi; Pamungkas, Dedi Bintang; Agustian, Harliyus; Sajati, Haruno; Sudaryanto, Sudaryanto; Aryanto, Salam; Astuti, Yenni
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 7, No 3 (2024): Agustus
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v7i3.2227

Abstract

Guru Bimbingan Konseling (BK) yang tergabung dalam MGBK di wilayah Kabupaten Sleman membutuhkan perangkat lunak yang dapat membantu pekerjaan mereka dalam memberikan konseling kepada anak-anak Sekolah Menengah Atas (SMA) atau Sekolah Menengah Kejuruan (SMK). Dengan menggunakan perangkat lunak yang dapat diakses dimana saja akan sangat menguntungkan bagi Guru BK jika membutuhkan data di waktu apapun dan tempat manapun. Sehijngga para guru ini membutuhkan pelatihan untuk menggunakan perangkant lunak yang dapat diakses melalui halaman brower dengan Alamat catatanbk.com. Rata-rata nilai hasil pelatihan para peserta sejumlah 96,3.  Sebanyak 26 guru memiliki nilai diatas rata-rata dan 7 orang guru berada dibawah rata-rata.
Co-Authors Adi Arlina, Ketut Agus Agga Prasetya, Agga Agustian, Harliyus Ali Akbar, Muhammad Harikem Amanda Cahya Ristia Putri, Amanda Cahya Ristia Anggraini Kusumaningrum, Anggraini Ariyanti, Indah Dwi Arwin Datumaya Wahyudi Sumari Astika AyuningTyas, Astika Awangga, Demmy Nanda Bambang Sudibya, Bambang Baskoro, Zaana Cahya Risti Putri, Amanda Catur Budi Waluyo, Catur Budi Daniel Teguh Rudianto, Daniel Teguh Denny Dermawan Dwi Nugraheny, Dwi Erik, Alber Freddy Kurniawan Haruno Sajati Hutomo, Fajar Hutomo, Fajar Irawaty, Mardiana Krisna, Angga Leo Anggara Lasmadi, Lasmadi Maria Asumpta Deny Kusumaningrum, Maria Asumpta Deny Matuan, Lorenso Oldiardo Mulyawan, Ferry Nurcahyani Dewi Retnowati Nurdin, Riani Nuryatno, Edi Triono Pamungkas, Dedi Bintang Pratama, Aditya Wisnu Prayoga, Noor Fita Indri Putri, Risma Dwi Tjutarjo Rahmawati, Fajar Khanif Rindu Alriavindra Funny Salam Aryanto Setiawan, Paulus SUDARYANTO SUDARYANTO Suhendar, Anggi Sri Septiani Supri Ermanto, Supri Wintolo, Hero