According to one embodiment, a progressive scanning conversion apparatus comprising: a motion detecting unit that detects a motion during one frame for each pixel and that outputs an output value between a still image determination value and a moving image determination value; a still image interpolation pixel generating unit that generates still image interpolation pixels from at least one of a preceding field signal and a following field signal; a moving image interpolation pixel generating unit that generates moving image interpolation pixels from at least one of a current field signal, the preceding field signal and the following field signal; an interpolation pixel mixing generating unit that mixes the still image interpolation pixels to the moving image interpolation pixels at an adjustable mixing ratio; an inter-field zero vector correlation detecting unit that detects correlation of corresponding small regions in a current field and a preceding field or in the current field and a following field, the corresponding small regions occupying the same area in an entire screen; and a motion detection correcting unit that corrects the output value to be closer to the moving image determination value when the correlation detected by the inter-field zero vector correlation detecting unit is lower; wherein, when the corrected output value is closer to the still image determination value, the interpolation pixel mixing generating unit increases the adjustable mixing ratio; and wherein, when the corrected output value is closer to the moving image determination value, the interpolation pixel mixing generating unit decreases the adjustable mixing ratio.