An Efficient Analogy Scheme of Hemispherical Photography Method under High-reality Virtual Forest Environment

2013 ◽  
Vol 15 (3) ◽  
pp. 345
Author(s):  
Longfei GAN ◽  
Jie ZOU ◽  
Liyu TANG ◽  
Chongcheng CHEN ◽  
Hongyu HUANG
2020 ◽  
Vol 16 (2) ◽  
pp. 68-76
Author(s):  
Reinhardus Pentury ◽  
Janson H Pietersz ◽  
Maureen A Tuapattinaja ◽  
Frederika S Pello ◽  
Niette V Huliselan ◽  
...  

Mangrove community in Tial is potential and roles importantly for aquatic organism, local community and especially for coastal waters abrasion control in Tial. Due to the high rate abrasion in Tial, mangrove  community should be maintained and conserved. Therefore, the research is done in order to analyze mangrove composition, its potency and its condition on the coast of Tial.  Belt transect and hemispherical photography method are used to collect data by determining the observation station.  Three plots of  10 x 10 meter squares are placed in every observation station without space in between each plot where the ≥ 15 cm of circumference trees measuring is done and canopy photo of breast  height are taken up above perpendicularly. Microsoft Excel and Image J software are used to analyze collected data. The result shows that there are 9 species of mangrove from 7 genera and 5 families found in the coast of Tial. Sonneratia alba and Aegiceras floridum dominates the community where A. floriduim with 13 ind/100 m2 is the highest density species, while the frequency of occurrence and the highest dominance species is S. alba with the rate 0,67 and 2298,75 cm2/100 m2. Overall mangrove vegetation health is categorized good with a high density and in a medium canopy coverage.   ABSTRAK: Komunitas mangrove merupakan komunitas yang cukup potensial dan memiliki peranan penting bagi organisme perairan sekitar dan bagi masyarakat setempat, terutama dalam mengendalikan abrasi pada pesisir pantai Tial. Laju abrasi yang terjadi pada pesisir pantai Negeri Tial cukup tinggi, sehingga keberadaan mangrove pada perairan tersebut perlu dijaga dan dilestarikan. Tujuan dari penelitian ini adalah untuk mengetahui komposisi, Potensi dan kondisi mangrove di perairan pantai Tial. Metode yang digunakan yaitu metode transek sabuk dan hemisperichal photography. Metode ini dilakukan dengan cara menentukan stasiun pengamatan, kemudian pada setiap stasiun pengamatan dibentuk petak pengamatan sebesar 10 x 10 m sebanyak tiga petak tanpa ada jarak antara petak pengamatan. Pada setiap petak pengamatan dilakukan pengambilan lingkar batang dengan ukuran ≥ 15 cm dan pengambilan foto kanopi dengan memotret setinggi dada secara tegak lurus kearah atas. Software Microsoft Excel dan Image J digunakan untuk menganalisis data pengukuran lingkar batang dan hasil foto kanopi. Dari hasil analisis diperoleh 9 spesies mangrove yang tergolong dalam 7 genera dan 5 famili. Sonneratia alba dan Aegiceras floridum merupakan spesies mangrove yang mendominasi komunitas mangrove pantai Tial. Kerapatan spesies tertinggi adalah A. floridum  sebesar 13 ind/100m2, sedangkan frekuensi kehadiran dan dominasi spesies tertinggi adalah S. alba dengan nilai masing-masing 0,67 dan 2298,75 cm2/100m2. Kondisi kesehatan mangrove secara keseluruhan pada pantai Tial masih dalam kondisi baik dengan kerapatan mangrove tergolong padat dan tutupan kanopi tergolong sedang.   Kata Kunci: mangrove, potensi, komunitas, kesehatan, pantai


2018 ◽  
Vol 7 (1) ◽  
pp. 29
Author(s):  
Muhamad Rizky Mauludin ◽  
Ria Azizah ◽  
Rudhi Pribadi ◽  
Suryono Suryono

Mangrove yang ada di Kawasan Ujung Piring berada di Desa Jambu, Kecamatan Mlonggo Kabupaten Jepara, merupakan salah satu kawasan hutan mangrove yang berada di Pesisir Pantai Utara Pulau Jawa. Tujuan dari penelitian ini adalah untuk menganalisis persentase tutupan kanopi mangrove di Kawasan Ujung Piring Kabupaten Jepara. Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Penentuan lokasi menggunakan purposive sampling sedangkan metode penutupan mangrove menggunakan Hemispherical Photography yang merupakan suatu metode fotografi yang digunakan untuk menghitung luasan tutupan kanopi menggunakan kamera dari bawah kanopi pohon. Penelitian ini dilakukan pada bulan Januari – Februari 2017, lokasi penelitian berada di dalam Kawasan Ujung Piring di Desa Jambu Kecamatan Mlonggo, Kabupaten Jepara. Terdapat 3 lokasi yaitu Jambu (JBU), Blebak (BLB), dan Sekuro (SKU) yang terdiri dari 8 stasiun. Hasil dari penelitian ini Komposisi mangrove di Kawasan Ujung Piring Kabupaten Jepara ditemukan 23 Spesies di dalam dan diluar transek dan tutupan kanopi berkisar58,15 ± 7,75% - 80,41 ± 4,25 % dengan tutupan kanopi tertinggi terdapat di JBU 01 dengan status padat dengan tutupan 80,41 ± 4,25 % dan persentase terendah pada BLB 02 dengan tutupan 58,15 ± 7,75% dengan status sedang. Dari 8 stasiun, persentase tutupan yang berstatus sedang lebih mendominasi dibandingkan status yang lain. Mangrove in Ujung Piring area located in Jambu Village, Mlonggo Sub-district of Jepara Regency, is one of the mangrove forest area located in the North Coast of Java Island. The purpose of this research is to analyze the percentage of mangrove canopy area in Ujung Piring area of Jepara regency. The method used in this research is descriptive method. Determination of location using purposive sampling while mangrove canopy are was using Hemispherical Photography method which is aimed to calculate the area of canopy area using camera from under canopy of tree. This research was conducted in January – February 2017, the research location is inside Ujung Piring Area in Jambu Village Mlonggo Sub-district, Jepara Regency. There are 3 locations namely Jambu (JBU), Blebak (BLB), and Sekuro (SKU) consisting of 8 stations. Result of this research Mangrove composition in Ujung Piring area Jepara regency found 23 species inside and outside transect and canopy range of 58,15 ± 7,75% - 80,41 ± 4,25 % with the highest canopy cover found on JBU 01 with solid status with 80,41 ± 4,25% cover and the lowest percentage in the BLB 02 with a cover of 58,15 ± 7,75% with medium status. Of the 8 stations, the percentage of cover that status is more dominant than other status.


Author(s):  
Abdurrachman Baksir ◽  
Mutmainnah Mutmainnah ◽  
Nebuchadnezzar Akbar ◽  
Firdaut Ismail

Minaluli Village has the availability of mangrove ecosystem resources in coastal areas. The availability of evenly distributed mangrove ecosystems can have a direct impact on the community. Determination of mangrove status conducted previously using conventional methods such as transect quandrat and spot check. Hemispherical photography method is one of the new methods used and developed in Indonesia. The study was conducted in July 2018 in Minaluli Village, North Mangoli District, Sula Islands Regency. North Maluku Province. The research objective is to obtain information on the condition of the mangrove ecosystem using the Hemispherical photography method. The results of the study obtained measurements of environmental parameters showed that environmental ecological conditions support the existence of mangroves. Morphological identification was obtained as many as 8 species from 3 families. Station I found 82% mangrove cover presentation value, for station II found 77% cover presentation, at station III found a presentation found 78% while at station IV found a presentation of mangrove cover 72%. The total presentation of mangrove cover obtained in the solid category, based on the standard criteria for mangrove damage. The density of the mangrove ecosystem obtained shows high density at each station. Based on the standard criteria for damage, the density of mangroves in this location is in the medium to very dense category with a value range between 1,067-2,022 trees / ha. Important value index (INP) analysis of each type of mangrove found a range of values ​​between 31.73-95.55 The highest value index of the highest species was found in the Rhizophora stylosa type with a value of 95.55% then Rhizophora apiculata with a value of 95.08%, Rhizophora mucronata namely 81.05%, Xylocarpus granatum is 45.68, Ceriops stagal with value of 40.83%, Sonneratia alba with a value of 36.27 and Bruguiera gymnorhiza 31.73%.


2018 ◽  
Vol 32 (2) ◽  
pp. 177 ◽  
Author(s):  
Herianto Tuwongkesong ◽  
Stevanus V Mandagi ◽  
Joshian N Schaduw

Tujuan penelitian ini adalah Menginvestigasi kondisi ekologi ekosistem mangrove di Bahowo dan menganalisa kesesuaian lahan ekosistem mangrove sebagai kawasan ekowisata. Penelitian ini dilaksakan di Bahowo Kota Manado pada bulan November sampai Januari 2018. Metode yang digunakan adalah metode survey. Metode penetapan kesesuaian lahan adalah melihat skor dan pembobotan yang diperoleh dari setiap parameter yang di kaji yaitu ketebalan mangrove, kerapatan, jenis, pasang surut, objek biota, keunikan, keaslian dan keberadaan biota berbahaya. Untuk tutupan mangrove menggunakan metode hemysperical photography atau aplikasi image j. Dari hasil pengamatan dilapangan diketahui bahwa Rhysopora apiculata mendominasi jenis yang ada di Bahowo. Hasil analisis tutupan berdasarkan aplikasi image j menunjukkan bahwa tutupan mangrove di Bahowo tergolong padat dengan nilai diatas 75 %. Berdasarkan matriks kesesuaian untuk kategori ekowisata, ekosistem mangrove yang ada di Bahowo sangat sesuai untuk dijadikan kawasan ekowisata mangrove.ABSTRACTThe purpose of this research is to investigate the ecological condition of mangrove ecosystem in Bahowo and analyze the suitability of mangrove ecosystem area as ecotourism area. This research was conducted in Bahowo Manado City from November to January 2018. The method used was survey method. The method of determining the suitability of land is to see the score and weighting obtained from each parameter in the mangrove thickness, density, type, tidal, biota object, uniqueness, authenticity and existence of dangerous biota. For mangrove cover using hemispherical photography method or image application j. From the results of observations in the field is known that Rhizophora apiculata dominate the existing species in Bahowo. The result of cover analysis based on image j application shows that mangrove cover in Bahowo is categorized as solid with the value above 75%. Based on the suitability matrix for ecotourism category, the existing mangrove ecosystem in Bahowo is very suitable for ecotourism area of mangrove


2020 ◽  
Vol 25 (2) ◽  
pp. 203-214
Author(s):  
Ana Isabel Rodrigues

Humankind is becoming increasingly image based. Visual culture is everywhere: it surrounds us all with still and moving images. Based on this pictorial change, working with the visual in education has the potential for engaging students in a process of self-reflection in an effort to change ways of thinking and behavior, aiming to consolidate concepts taught in classes. Nevertheless, there are key elements to consider as a set of methodologies and practices. The aim of this study is to explore multiple ways of working with the visual, within educational environments, specifically in classes taught in the second and third year of a degree in Tourism. Two examples of visual methodologies were considered for this study. An image-based exercise through the use of tourism cartoons as visual stimuli to evoke opinions and incite thoughts was fully implemented. Analysis was undertaken and the results are presented. A reflexive photography method is also proposed as another example for a visual-based exercise. The results from the cartoons exercise demonstrate that knowledge is continuously derived from the experience of the learner. The student's impressions and full comprehension of the concepts taught in a particular subject were achieved with this exercise.


J-Institute ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 1-16
Author(s):  
Dong-suk Sung ◽  
Ju-sik Park ◽  
Won-hyeon Lim

2021 ◽  
pp. 1-26
Author(s):  
Traci A. Bekelman ◽  
Corby K. Martin ◽  
Susan L. Johnson ◽  
Deborah H. Glueck ◽  
Katherine A. Sauder ◽  
...  

Abstract The limitations of self-report measures of dietary intake are well known. Novel, technology-based measures of dietary intake may provide a more accurate, less burdensome alternative to existing tools. The first objective of this study was to compare participant burden for two technology-based measures of dietary intake among school-age children: the Automated-Self Administered 24-hour Dietary Assessment Tool-2018 (ASA24-2018) and the Remote Food Photography Method (RFPM). The second objective was to compare reported energy intake for each method to the Estimated Energy Requirement for each child, as a benchmark for actual intake. Forty parent-child dyads participated in 2, 3-day dietary assessments: a parent proxy-reported version of the ASA24 and the RFPM. A parent survey was subsequently administered to compare satisfaction, ease of use and burden with each method. A linear mixed model examined differences in total daily energy intake (TDEI) between assessments, and between each assessment method and the EER. Reported energy intake was 379 kcal higher with the ASA24 than the RFPM (p=0.0002). Reported energy intake with the ASA24 was 231 kcal higher than the EER (p = 0.008). Reported energy intake with the RFPM did not differ significantly from the EER (difference in predicted means = −148 kcal, p = 0.09). Median satisfaction and ease of use scores were 5 out of 6 for both methods. A higher proportion of parents reported that the ASA24 was more time consuming than the RFPM (74.4% vs. 25.6%, p = 0.002). Utilization of both methods is warranted given their high satisfaction among parents.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fariba Mostajeran ◽  
Jessica Krzikawski ◽  
Frank Steinicke ◽  
Simone Kühn

AbstractA large number of studies have demonstrated the benefits of natural environments on people’s health and well-being. For people who have limited access to nature (e.g., elderly in nursing homes, hospital patients, or jail inmates), virtual representations may provide an alternative to benefit from the illusion of a natural environment. For this purpose and in most previous studies, conventional photos of nature have been used. Immersive virtual reality (VR) environments, however, can induce a higher sense of presence compared to conventional photos. Whether this higher sense of presence leads to increased positive impacts of virtual nature exposure is the main research question of this study. Therefore, we compared exposure to a forest and an urban virtual environment in terms of their respective impact on mood, stress, physiological reactions, and cognition. The environments were presented via a head-mounted display as (1) conventional photo slideshows or (2) 360$$^{\circ }$$ ∘ videos. The results show that the forest environment had a positive effect on cognition and the urban environment disturbed mood regardless of the mode of presentation. In addition, photos of either urban or forest environment were both more effective in reducing physiological arousal compared to immersive 360$$^{\circ }$$ ∘ videos.


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