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忽然想起一个问题:只有69万像素摄像头的iPod touch 4是如何拍摄1280*720视频的,这个像素只能拍摄960*720的视频啊? 拍摄720P至少要92万像素吧?有高人知道没?

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  •   regsvr32 · 2011-03-08 18:17:20 +08:00 · 6126 次点击
    这是一个创建于 3200 天前的主题,其中的信息可能已经有所发展或是发生改变。
    5 回复  |  直到 1970-01-01 08:00:00 +08:00
        1
    naoqiushen   2011-03-12 01:05:47 +08:00
    手持70万的飘过
        2
    lianghai   2011-03-12 02:03:19 +08:00
    哪里有数据说 iPod touch 4 的摄像头是 0.69M 像素的?官网的信息是这样的:
    Video recording, HD (720p) up to 30 frames per second with audio; still photos (960 x 720) with back camera
    http://www.apple.com/ipodtouch/specs.html
    似乎这个 0.69M 是拿照片的分辨率乘出来的?
        3
    LeiWeimu   2011-03-12 02:40:15 +08:00
    @lianghai Find some data here but I'm not sure about its source credibility: http://www.edepot.com/iphone.html
        4
    LeiWeimu   2011-03-12 02:55:39 +08:00
    @regsvr32 @lianghai This explanation is interesting and somewhat convincing: "[t]he sensor actually is 1280x720 pixels, so it can create 720p video; that is a 16:9 format. But [for] still pictures, most still cameras take 4:3 pictures, and the iPod's camera does the same. A 4:3 picture with 720 pixels vertically is 960x720. That's 691,200 pixels, or 0.7 megapixels."
    So it might be too arbitrary to say iPod touch 4th generation only has 0.69-megapixel rear camera.
        5
    regsvr32   2011-03-14 21:31:44 +08:00
    @LeiWeimu 那么你是反对其摄像头是0.69mp的说法对吧?可是这一点似乎没有太多人质疑
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