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-24 1995 
37 
  
Fig. 1 Kodak DCS 460 
Fig. 2 PCMCIA removable hard disk card together 
with DCS 420 (successor of DCS 200) 
der, 1995). Relative accuracies in object space - relative to the object dimension - of up to 1 : 90000 were obtained 
from multi-station self-calibrating bundle adjustments. This accuracy is comparable to the results achieved with a 
medium format film-based analogue camera. The objects recorded were testfields or components in the car or aircraft 
. manufacturing and shipbuilding industry. Targets on the object were imaged and measured in digital image processing 
systems. The image coordinate measurement accuracy varied between 0.2 uum and 0.5 um, corresponding to 0.02 and 
0.05 pixel. The DCS 200 meets, therefore, the demands made upon a high precision photogrammetric measurement 
tool. The camera can be used routinely, e.g. for dimensional inspection in industry. As a disadvantage the reduced 
viewing angle is to be mentioned caused by the 2.6 times smaller photosensitive area of the CCD chip compared to the 
24 x 36 mm image format of the Nikon camera connected with the digital back. 
Very recently a 3000 x 2000 pixel still video camera was introduced by Kodak, the DCS 460 (also available as digital 
camera back DCS 465 to be mounted to Hasselblad and Mamiya medium format analogue cameras or to 4 x 5" cameras 
used in DTP). First photogrammetric investigations with a color model of the camera were carried out and will be 
described in Sect. 3. 
2. KODAK DCS 460 STILL VIDEO CAMERA 
The DCS 460 (Fig. 1; Table 1) features the high resolution CCD image sensor Kodak KAF-6300 with 3060 x 2036 pixel, 
i.e. 6.230.160 pixel. The sensor is mounted in a special Kodak back fixed to the body of a single-lens reflex Nikon N90 
camera. All the standard Nikon lenses can be applied. Due to the large imager, the image size of the DCS 460 is 27.65 
x 18.48 mm. In contrast to the DCS 200, the viewing angle is reduced only 1.3 times. A 28 mm wide angle lens operates 
like a 36 mm lens. Color, black & white and infrared models of the DCS 460 are available. 
The digital images of 6 MByte in size are stored on an internal removable 131 MByte PCMCIA-ATA Type 3 hard disk 
card (Fig. 2). When using a color model, a single shot captures simultaneously all three RGB colors on the 
3060 x 2036 pixel sensor. Subsequent images are taken approximately every 12 seconds. The data can be trans- 
ferred into an Apple Macintosh PC by means of the PCMCIA card or via a standard SCSI interface to be connected 
directly to the computer. A special driver for the Adobe Photoshop image processing software (Macintosh version) is 
shipped with the camera to provide for data transfer, image generation and visualization. The size of a digital color 
image amounts to 18 MByte, a black & white image requires 6 MByte. In addition, a microphone is built in the camera 
back to allow for the recording of comments during the data acquisition on site. A three minutes sound file requires 1.5 
MByte memory. 
IAPRS, Vol. 30, Pari 5W1, ISPRS Intercommission Workshop "From Pixels to Sequences", Zurich, March 22-24 1995