17 research outputs found
MALAYSIAN INTEGRATED 3D CADASTRE
This paper discusses 3D cadastre in the aspect of property registration i.e. complex building and overlappingproperties on different land use. We also discuss the interoperability of the two systems between the two different agencies.This 3D cadastre registration will serve as a first attempt to develop a more complete Integrated Malaysian 3D Cadastre System.A complex system needs a clear and concise method to show the representation of data, and here we utilize Unified ModelingLanguage (UML) for the data modeling task as it has been considered better technique for such real world data modelinglike cadastre data compared to the traditional entity relationship approach. Besides 3D registration, this paper also discusses 3Dmodeling, 3D geo databasing and 3D visualization. Malaysia could embark on this 3D cadastre system since it has wellestablished 2D cadastre framework. From the previous research and discussion it can be realized that the hybrid approachcertainly would be a good approach for Malaysian 3D Cadastre System. The hybrid approach means preservation of 2D cadastreand the integration of the registration of the situation in 3D by registering 3D situations integrated and being part of the 2Dcadastral geographical data set.Keywords: 3D Cadastre, 3D Databas
3D strata visualization in web environment – Review
Nowadays, rapid population growth has caused a high demand of land and stratified property especially in urban areas (big city). In cadastral system, visualization is considered as a tool for reflecting the real world which is commonly drawn in 2-Dimensional (2D) based plan. However, it only works efficiently for land parcel but not in representing strata property (high rise building). The complexity and overlapping boundaries also need to be considered in portraying 3-Dimensional (3D) model which cannot be achieved using only 2D plan. On top of that, the need of providing a 3D visualization platform has been recognised by many researchers worldwide. There have been numbers of 3D Cadastral system prototype being developed for different country such as Australia, Russia and Indonesia. 3D visualization helps enhanced communication between users, improve decision making, and helps to manage and facilitate land information system. This paper therefore seeks to analyse the problems related to the visualisation for the application of strata and the current approach of 3D visualisation. It is carried out by investigating different techniques and methods used in visualising 3D objects. The outcome of this paper would be the solutions in finding suitable visualization tools to be developed via Web-based visualization applications which are common with end users and easily accessible due to advancements in technology
3D marine cadastre within land administration - Review
Cadastre was used to identify the dimension and position of the properties defined in legal documents. It consists of the geometric description of the parcels that describing the interests and ownerships including the property's value. Cadastre plays an important role in land administration for state authorities and federal organizations in terms of ownership (rights, restrictions, and responsibilities). Meanwhile, cadastre in the marine area is still quite unclear due to separate working systems between land and marine region. Coastal and maritime spaces with various uses regularly lead to overlapping rights issues in the water surface, water column, and seabed as well as conflict in technical, legal, and stakeholder management. Since some part of the marine area is considered as land space, there were a few ideas that have been proposed in managing marine area within land administration to overcome those issues. The current land standard data model that has been referred to, is Land Administration Domain Model (LADM). This standard has been proven relevant to 3D cadastre inland and marine environments. Some works discussed the probabilities of managing the marine environment within land administration. Thus, this paper attempted to review the possibilities of integrating marine cadastre within land administration
Rubber-Tree Leaf Diseases Mapping Using Close Range Remote Sensing Images
Currently, close-range remote sensing method using drone-based platform which payload compact sensor has been used for monitoring and mapping in the agriculture sector at large area. Thus, this study is deployed drone with a compact sensor to identify the rubber tree leaf diseases based on two groups of a spectral wavelength which are visible (RGB: 0.4 µm – 0.7 µm) and near infrared (NIR: 0.7µm – 2.0 µm), respectively. Spectral obtained from drone-based platform will be validated using ground observation handheld spectroradiometer. Eight types of rubber tree clones leaf at three different conditions (healthy, unhealthy and severe) were randomly selected within the 9.4-hectare Experimental Rubber Plot, Rubber Research Institute of Malaysia (RRIM), Kota Tinggi, Johor whereby consist RRIM 2000 series, RRIM 3000 series, and PB series, respectively. Based on the result, quantitative analysis shows that the f-value is smaller than Critical-one tail for healthy, unhealthy while for severe the f-value is larger than Critical-one tail. The f-value is 2.887 < 4.283 (healthy), 0.002 < 0.264 (unhealthy) and 1.008 > 0.0526, respectively. Thus, this can be concluded that spectral and estimate is equal at the 0.05 significant levels. For qualitative analysis, it shows that each rubber clone tree diseases can be distinguished at the near infrared band for healthy, unhealthy and severe respectively
Rubber-Tree Leaf Diseases Mapping Using Close Range Remote Sensing Images
Currently, close-range remote sensing method using drone-based platform which payload compact sensor has been used for monitoring and mapping in the agriculture sector at large area. Thus, this study is deployed drone with a compact sensor to identify the rubber tree leaf diseases based on two groups of a spectral wavelength which are visible (RGB: 0.4 µm – 0.7 µm) and near infrared (NIR: 0.7µm – 2.0 µm), respectively. Spectral obtained from drone-based platform will be validated using ground observation handheld spectroradiometer. Eight types of rubber tree clones leaf at three different conditions (healthy, unhealthy and severe) were randomly selected within the 9.4-hectare Experimental Rubber Plot, Rubber Research Institute of Malaysia (RRIM), Kota Tinggi, Johor whereby consist RRIM 2000 series, RRIM 3000 series, and PB series, respectively. Based on the result, quantitative analysis shows that the f-value is smaller than Critical-one tail for healthy, unhealthy while for severe the f-value is larger than Critical-one tail. The f-value is 2.887 < 4.283 (healthy), 0.002 < 0.264 (unhealthy) and 1.008 > 0.0526, respectively. Thus, this can be concluded that spectral and estimate is equal at the 0.05 significant levels. For qualitative analysis, it shows that each rubber clone tree diseases can be distinguished at the near infrared band for healthy, unhealthy and severe respectively
Legal and organizational aspects of Malaysian 3D Cadastre
Cadastre, being the core component of a land administration system, plays an important role in a modern economy is rapidly developing among people in the economic, land related fields or even to the layman. 2D cadastre mapping is being practiced in Malaysia and at the moment it provides vital land and property information like ownerships of the parcels for most parts of the country. However in very near future, this 2D information may not be able to serve more advanced situations for example in large cities. How do they deal with 3D situations, concerning legal as well as organisational aspects and can we learn from other countries? In Malaysia, JUPEM is responsible for preparing, producing and managing the spatial data including the surveying and mapping of the cadastre parcels
138 Muhammad Imzan Hassan and Alias Abdul Rahman Unique Identifier for 3D Cadastre Objects Registration 2 nd International Workshop on 3D Cadastres 16
SUMMARY In Malaysia, cadastre system is carried out in two-dimensions (2D) and all cadastre have their own unique ID, called Unique Parcel Identifier (UPI). UPI is widely used in various land transaction purposes e.g. sale and purchase of land, land development, and so forth. Traditionally, cadastral registration system is a basic 2D land system. In the near future, 2D cadastre faces some difficulties in answering queries related to 3D complex situations such as apartments, towers, condominium, and etc, thus 3D cadastre seems most appropriate to be developed. This paper discusses the concept of determining the unique identifier code for each 3D object called Unique Features Identifier (UFI). This paper discusses the recognition of 3D objects cadastre based on the existing UPI concept and method. This paper will highlight the complex 3D situation in Kuala Lumpur underground tunnel, a.k.a. 'SMART' tunnel (Stormwater Management and Road Tunnel) in relation to the cadastre unique identifier. We will also highlight some future works of the identifier for 3D cadastre objects
An integrated Malaysian 3D cadastre
In Malaysia, the cadastre system is controlled by two main ag
encies, namely, Department of
Surveying and Mapping Malaysia
(DSMM) and Land Offices (L.O). The DSMM is
responsible for the cadastral spatial information i.e. land parcel boundaries. The
mission is to enhance quality in surveying and mapping services
along with managing the geospatial data. On the other hand, Lan
d
Office is responsible for the cadas
tral attribute information i.e. legal rights that attached to the cadastral objects or plots
. The current
system only involves with 2D maps and no effo
rt towards 3D registration yet. This pape
r discusses 3D cadastre in the aspect of
property registration i.e. complex building
and overlapping properties on di
fferent land use. We also
discuss the interoperabil
ity of
the two systems between the two different ag
encies. This 3D cadastre re
gistration will serve as a first attempt to develop a mo
re
complete Integrated Malaysian 3D Cadastre System. A complex system needs a clear a
nd concise method to show the representation
of data, and here we utilize Unified Modeli
ng Language (UML) for the data modeling task
as it has been considered better techni
que
for such real world data modeling like cadastre data compared
to the traditional entity relationship approach. Besides 3D regis
tration,
the paper also discusses 3D mode
ling, 3D geo databasing and 3D vi
sualization. Malaysia could emba
rk on this 3D cadastre system
relatively straight forward since it has good 2D cadastre framework.
From the research and discussion it can be realized that t
he
hybrid approach certainly would be a good to
start with. This approach means preservation of 2D cadastre and the integration of the
registration of the situation in 3D by registering 3D situations integrated and being
part of the 2D cadastral geographical dat
a set.
Nevertheless it is reasonable to believe that there are some
irregularities and different inform
ation as both systems operates
separately. This situation shall trigger a good basis why there is
a need for the integration. The challenge is to transform th
e proposed
model into computer means i.e. logical model. The validation of logical model will be then encoded in the spatial database. Spa
tial
DBMS is the foundation for both GIS (presenta
tion, analysis) and CAD (creating models). It offers spatial data type in its data
model
structure and also in the query language and it can interact with
the spatial DBMS. This paper elaborates on an integration of
Oracle
Spatial and Autodesk Map 3D for an integrated 3D Cadastre. The 3D Cadastre database
development especially
on the aspect of 3D
objects registration form major contributi
ons of the paper towards the developm
ent of an integrated 3D Cadastre
3D registration for Malaysian cadastre system
2D cadastre mapping is being practiced in Malaysia and at the moment
it provides vital land and property information like ownerships of the
parcels for most parts of the country. However in very near future this
2D information may not be able to serve more advanced situations for
example in large city centers. The establishment of Malaysia cadastral
system is to monitor matters of land especially the land ownership.
The system is setup to ensure consistency in cadastral information that
comes from cadastral survey and cadastral land registration. In
general, the cadastral survey and
cadastral land registration are
managed by Department of Survey and Mapping Malaysia (DSMM)
and Land Offices (LO) respectively. The cadastral object can be either
a complete land parcel, parcel of storey houses (strata) e.g. apartments,
flats resident
ial or parcel below
the surface (stratum)
. There is a need
for 3D cadastre registration as real-estate property is actually in 3D.
Therefore, the new cadastral system should reflect the existence of the
real-world objects - 3D physical objects and have its own legal rights.
Current 3D computing technology could be used to develop a
registration system for 3D Cadastre and eventually a solution for 3