In order to recognize the parrerns represented in a map, picking out of distribution patterens in the map has to be done as pre-processing. Quantitization method was used to pick up the distribution patterns and B. G. R. and B. W. methods are applied for quantitization. Picking out of colour tone distributions was carried out by applying this method. The results show that the accuracy of this method is farily good. But we, also, find some misrecognitions and luck of similitude of patterns between original and obtained figures. In this paper, so, improvement of accuracy are attempted by changing the scale of colour slide obtained from the original map and by increasing nomber of sampling points. As another processing technique, continuous tone negative film separeted each colour tone in the original map is investigated.
As these results, it is clear that distribution patterns represented by several colour tones are able to pick up fairly well by B. G. R. and B. W. method, and they will also be picked out simply by using B. G. R. method only.

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The fundamental point of remote sensing is based on the following facts; a plant leaf reflects and transmits incident radiation in a manner that is uniquely characteristic of pigmented cells containing water solutions.
In Japan, the interptatation of remote sensing is necessary to measure the spectral reflectance of domestic plants.
In this paper, we discussed the spectral reflectance of plants with the following points; 1) moisture content, 2) growth stage, 3) leaf density, 4) the right side and the back side of the leaf, 5) species, and 6) leaf vigor.
The typical spectral reflectance, transmittance and absorptance curve of the Miscanthus sp. is shown in Fig.1. The striking differences are in the following bands (manometer) ; 540, 660, 750, 1, 440, 1, 650, 1, 930 and 2, 200.
We can see that the absorption of 1, 440 nm and 1, 650 nm is caused by the moisture content of the leaf because the absorption curve of dry leaves does not increase at 1, 440 nm and 1, 650 nm. In the near infra-red band the reflectance of four leaf layers increased much more than that of a one leaf layer. We can interprete the leaf density from infra-red film using the reflectance of leaf layers.

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The digital color instrument (PHOSDAC-1000 made by Kimoto K.K.) divides density values of photographs into 12 steps colors, and calculates percentage of those each occupation rate.
This paper offers the data of examination results about this performance of this instrument, and points out some good efficiencies and some faults of this instrument.
I should say that dividing is good but that the error of planimation is not negligible.

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Most preferably, underwater image recording device should cover as wider range as possible. This report explains 360° panoramic all range recording system to photograph 360° range of view which surrounds the camera at the centre, onto the sheet copy. The writer also makes mention of 360° range monitoring device which utilizes TV camera as well. The photos which were obtained by means of above system, photographs of the inside surface of cylindrical structure or hole of boring, will be released.

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