发明名称 VIDEO CAMERA
摘要 PROBLEM TO BE SOLVED: To obtain a sharp video image even from highlight parts and dark parts in the video image by using a plurality of video signal correction characteristics in one frame in a video camera that is mainly connected to a computer or the like as its external device and used for a video conference or a video telephone or the like. SOLUTION: The video camera is provided with a video signal contrast distribution detection circuit 8 that checks a contrast distribution of a picture in order to change a plurality of video image correction characteristics in use depending on the contrast distribution of the picture and also with a block division circuit 9 that divides one frame into a plurality of blocks depending on the contrast distribution of the picture. The block division method of frame is configured through the provision of a means that changes sizes of the blocks depending on the contrast distribution of the picture.
申请公布号 JP2001008096(A) 申请公布日期 2001.01.12
申请号 JP19990174914 申请日期 1999.06.22
申请人 SHARP CORP 发明人 TAMURA SATORU
分类号 H04N5/243;H04N5/765;(IPC1-7):H04N5/243 主分类号 H04N5/243
代理机构 代理人
主权项
地址