Ikeda Isamu, Urushihara Kazunobu, Ono Tomomichi
Department of Dermatology, Omuta Tenryo Hospital, Tenryo 1-100, Omuta City, Fukuoka 836-8566, Japan.
Arch Dermatol Res. 2003 Jan;294(10-11):438-43. doi: 10.1007/s00403-002-0360-9. Epub 2002 Nov 28.
Pictures of skin lesions are usually recorded with a camera equipped with a ring-type electric flash. In some cases the photographs do not reproduce the image perceived by the naked eye.
To investigate the quality of photographs taken with the ring-type electric flash.
Photographs of skin lesions and an experimental skin model were taken under different illumination conditions including a standard light source, full-spectrum fluorescent ceiling lights and the ring-type electric flash.
Images taken under illumination with a standard light source box resembled those perceived by the naked eye. The full-spectrum fluorescent ceiling lights produced adequate results. Pictures taken with the ring-type electric flash showed some deficiencies including reduction in contrast, loss of shading and excess reflection.
The ring-type electric flash is not an ideal device for recording skin lesions. An illumination device compatible with a standard light source should be employed to yield maximum fidelity.
皮肤病变的图片通常使用配备环形电子闪光灯的相机进行拍摄。在某些情况下，照片无法再现肉眼所看到的图像。
研究使用环形电子闪光灯拍摄的照片质量。
在不同的光照条件下拍摄皮肤病变和实验性皮肤模型的照片，这些光照条件包括标准光源、全光谱荧光吸顶灯和环形电子闪光灯。
在标准光源箱照明下拍摄的图像与肉眼所见相似。全光谱荧光吸顶灯产生了足够的效果。用环形电子闪光灯拍摄的照片显示出一些缺陷，包括对比度降低、阴影丢失和过度反射。
环形电子闪光灯不是记录皮肤病变的理想设备。应采用与标准光源兼容的照明设备以实现最大的保真度。
