1. Field of the Invention
The invention generally relates to a camera and a method of producing tracklog, and particularly to a camera which offers tracklog combined with photos that have been taken (photo tracklog), and a method of producing the photo tracklog.
2. Description of the Related Art
Digital cameras have become more and more popular as they are made more and more powerful and multifunctional while being offered competitive prices. One of the popular functions in the novel digital camera is to offer services by the global positioning system (GPS). For example, TW publication no. 200710771, published on Mar. 16, 2007, discloses a GPS device with picture recording function. This device shows geographic information (such as name of the location, and the longitude and latitude) where the geographic information is shown in pictures drawn onto the digital photographs. The images tagged with relevant geographic information are referred to as geotagged photos which help the viewer to recall the memory the moment the pictures are taken.
A commercially available GPS device inherently records the longitudes and the latitudes at different locations for the user in a certain period of time, and then transforms those records into a GPS tracklog accordingly for the user to view his travel track.
However, the devices which only serve to show the GPS tracklog, and those only serving to generate geotagged photo have not met the requirements of multifunctional digital trends.
Therefore, there is a need of a novel digital camera which combines geotagged photos with a GPS tracklog for the user to conveniently refer to the geographic information and positioning data while viewing the digital images.
It is an object of the invention to provide a camera with a photo tracklog producing function and to provide a method of producing photo tracklog, in which each digital image is combined with its corresponding GPS tracklog to obtain a photo tracklog so that the user can recall the traveling track by reviewing only the photo tracklog or the digital images along with their corresponding photo tracklog.
In order to achieve the objectives of the above and others, a camera with a photo tracklog producing function according to the invention includes: an image recording module, used to take digital images; a Global Positioning System (GPS) module, used to receive ordered sequences of positioning data coordinating the measurements of GPS as a GPS tracklog; a processor unit, connecting the image recording module to the GPS module, wherein the processor unit writes geographic information in an exchangeable image file format for digital images and then combines the digital images with the GPS tracklog to obtain a photo tracklog; and a storage module, used to connect to the processor unit for storing the digital images, the GPS tracklog and the photo tracklog.
The invention further provides a method of producing photo tracklog. The method includes providing a GPS module to catch positioning data where the user locates at the pre-set periods of time, and writing the obtained positioning data in an ordered sequence into a GPS tracklog file; using an image recording module to take digital images; catching the positioning data of the locations where the images are taken by using the GPS module and writing the corresponding longitude and latitude in an exchangeable image file format for digital images; and adding the positioning data into the GPS tracklog file, tagging each of the positioning data with a photo track mark to obtain a photo tracklog.
The invention offers advantages over the prior art. For example, the photo tracklog combine the digital images with the GPS tracklog. The users can recall the travel track from the photo tracklog, and view the digital images along with the relevant geographic information by clicking the corresponding photo track marks.
To provide a further understanding of the invention, the following detailed description illustrates embodiments and examples of the invention, this detailed description being provided only for illustration of the invention.
Wherever possible in the following description, like reference numerals will refer to like elements and parts unless otherwise illustrated.
The image recording module 11 is used to take images. The image recording module 11 further has an image sensor to transform the taken images into digital form. The sensor can be, for example, a complementary metal-oxide-semiconductor (CMOS) or a charge-coupled device (CCD). The digital images are transmitted to the processor unit 14 for further processing.
The GPS module 12 is used to receive ordered sequences of positioning data coordinating the measurements of GPS as a GPS tracklog. The positioning date includes the information of longitude and latitude where the images are taken and the time when the images are taken. The GPS module 12 catches a positioning signal according to the time period the user sets and then writes the positioning signal in ordered sequence into a GPS tracklog file. The GPS tracklog file is then saved in the storage module 15 via the processor unit 14.
When the user takes the photos by using the image recording module 11, the GPS module 12 catches positing data (the longitude and the latitude) where the images are taken and then writes the positioning data in an exchangeable image file format for digital images so that the taken images can be transformed into geotagged photos. In addition to the positioning data, the geographic database 13 and the input module 16 can further add the information thereof into the geotagged photos.
The geographic database 13 stores geographic information related to various locations in relation to their longitude and latitude, for example, names of streets, cities, landmarks or scenic spots. When the longitude and the latitude of taken images are confirmed, the processor unit 14 will check the relevant geographic information correlating to the geographic database 13. The obtained relevant geographic information will be written in an exchangeable image file format for digital images.
The input module 16 additionally adds text notes to the digital images after the images are taken. The text notes are also written in an exchangeable image file format for digital images. The input module 16 can be any kind of human machine interfaces such as a touch panel or a keyboard. Then the digital images with the above information are stored into the storage module 15. The storage module 15 in this embodiment of the invention can be a memory card. Files or images stored in the storage module 15 can be transmitted to other devices such as personal computer or digital frames.
Finally, the processor unit 14 combines the digital images with the GPS tracklog to form a photo tracklog. The display module 17 shows the digital images along with the photo tracklog to the user. The photo tracklog can be graphically displayed in the display module 17.
As such, two types of positioning data are in the GPS tracklog: one is the positioning data with the photo track marks 24 which respectively represent the corresponding digital images, and the other is the positioning data obtained by the GPS module 12. Each of the photo track marks 24 indicates some original information of each corresponding digital image, such as scaled-down image, longitude and latitude where the image is taken, time points when the digital image is taken, geographic information related the location where the digital image is taken, and texts additionally added by the user.
When one of the photo track marks 24 of the photo tracklog graph 20 is clicked, a data window 40 will be opened, as shown in
It should be apparent to those skilled in the art that the above description is only illustrative of specific embodiments and examples of the invention. The invention should therefore cover various modifications and variations made to the herein-described structure and operations of the invention, provided they fall within the scope of the invention as defined in the following appended claims.
Number | Date | Country | Kind |
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96145120 | Nov 2007 | TW | national |